chl.bib

@misc{Michailidis:2007,
  author = {G Michailidis},
  journal = {Miscellaneous},
  title = {Multilevel Homogeneity Analysis},
  year = {2007},
  date-added = {2010-01-10 11:33:19 +0100},
  date-modified = {2010-01-10 11:33:25 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Michailidis-2007-Miscellaneous_Multilevel%20Homogenei.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1940},
  rating = {0}
}
@article{Arpinelli:2006p4450,
  author = {Fabio Arpinelli and Francesco Bamfi},
  journal = {Health Qual Life Outcomes},
  title = {The FDA guidance for industry on PROs: the point of view of a pharmaceutical company},
  abstract = {The importance of the patients point of view on their health status is widely recognised. Patient-reported outcomes is a broad term encompassing a large variety of different health data reported by patients, as symptoms, functional status, Quality of Life and Health-Related Quality of Life. Measurements of Health-Related Quality of Life have been developed during many years of researches, and a lot of validated questionnaires exist. However, few attempts have been made to standardise the evaluation of instruments characteristics, no recommendations are made about interpretation on Health-Related Quality of Life results, especially regarding the clinical significance of a change leading a therapeutic approach. Moreover, the true value of Health-Related Quality of Life evaluations in clinical trials has not yet been completely defined. An important step towards a more structured and frequent use of Patient-Reported Outcomes in drug development is represented by the FDA Guidance, issued on February 2006. In our paper we aim to report some considerations on this Guidance. Our comments focus especially on the characteristics of instruments to use, the Minimal Important Difference, and the methods to calculate it. Furthermore, we present the advantages and opportunities of using the Patient-Reported Outcomes in drug development, as seen by a pharmaceutical company. The Patient-Reported Outcomes can provide additional data to make a drug more competitive than others of the same pharmacological class, and a well demonstrated positive impact on the patient' health status and daily life might allow a higher price and/or the inclusion in a reimbursement list. Applying extensively the FDA Guidance in the next trials could lead to a wider culture of subjective measurement, and to a greater consideration for the patient's opinions on his/her care. Moreover, prescribing doctors and payers could benefit from subjective information to better define the value of drugs.},
  affiliation = {Health Technology Assessment, Medical Department, GSK S.p.A. Verona, Italy. fabio.a.arpinelli@gsk.com},
  pages = {85},
  volume = {4},
  year = {2006},
  month = {Jan},
  language = {eng},
  keywords = {Drug Industry, Guidelines as Topic, Self Concept, United States, Sickness Impact Profile, Attitude to Health, Quality of Life, Clinical Trials as Topic, Outcome Assessment (Health Care), United States Food and Drug Administration, Humans},
  date-added = {2010-01-29 21:36:54 +0100},
  date-modified = {2010-01-29 21:36:55 +0100},
  doi = {10.1186/1477-7525-4-85},
  pii = {1477-7525-4-85},
  pmid = {17076891},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Arpinelli-2006-Health%20and%20Quality%20of%20Life%20Outcomes_The%20FDA%20guidance%20for.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4450},
  rating = {0}
}
@article{Galfalvy:2009p9649,
  author = {Hanga Galfalvy and Yung-Yu Huang and Maria A Oquendo and Dianne Currier and J John Mann},
  journal = {J Affect Disord},
  title = {Increased risk of suicide attempt in mood disorders and TPH1 genotype},
  abstract = {BACKGROUND: The tryptophan hydroxylase 1 (TPH1) gene is reported to be associated with suicidal behavior. This has not been confirmed by prospective studies of suicide and clinical or biological mediators of this genetic risk have not been identified. METHODS: 343 subjects (Caucasian, African-American, Hispanic) presenting with a Major Depressive Episode were genotyped for polymorphisms A218C in intron 7 and A-6526G in the promoter region of TPH1, and monitored for suicide attempts for up to one year. Clinical correlates of suicidal behavior and CSF-HIAA, HVA and MHPG levels were explored as possible mediators of genetic risk. Analyses were adjusted for ethnicity. RESULTS: The AA genotype on intron 7 and the AA genotype on the promoter (both more prevalent in Caucasians) predicted suicide attempts during the 1 year follow-up, and were associated with past attempts of high medical lethality, regardless of ethnicity. The intron 7 genotype was associated with fewer reported reasons for living, and lower impulsivity. Haplotype analysis indicated significant increase in risk of suicide attempts for subjects with four risk alleles. TPH1 genotype was not associated with CSF metabolite levels. LIMITATIONS: The TPH1 gene is likely one of several genes associated with suicidal behavior. Power to detect differential genotype effects by ethnicity is low. CONCLUSIONS: Polymorphisms of TPH1 may assist in identifying a subgroup of mood disorder patients that is at higher risk for suicidal behavior.},
  affiliation = {Division of Molecular Imaging and Neuropathology, Department of Psychiatry, Columbia University,; and New York State Psychiatric Institute, New York, NY 10032, USA. hcg2002@columbia.edu},
  number = {3},
  pages = {331--8},
  volume = {115},
  year = {2009},
  month = {Jun},
  language = {eng},
  keywords = {Adolescent, Haplotypes, African Americans, Homovanillic Acid, Tryptophan Hydroxylase, Depressive Disorder: Major, Female, Sex Factors, Hydroxyindoleacetic Acid, Humans, European Continental Ancestry Group, Hispanic Americans, Mood Disorders, Young Adult, Male, Prospective Studies, Methoxyhydroxyphenylglycol, Polymorphism: Single Nucleotide, Risk Factors, Middle Aged, Bipolar Disorder, Aged, Adult, Genetic Predisposition to Disease, Suicide: Attempted, New York},
  date-added = {2010-03-25 14:53:49 +0100},
  date-modified = {2010-03-25 14:53:49 +0100},
  doi = {10.1016/j.jad.2008.09.019},
  pii = {S0165-0327(08)00370-4},
  pmid = {18977032},
  url = {http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6T2X-4TTDYRV-1&_user=2432700&_coverDate=06%252F30%252F2009&_rdoc=1&_fmt=high&_orig=search&_sort=d&_docanchor=&view=c&_acct=C000057263&_version=1&_urlVersion=0&_userid=2432700&md5=73227bbe6d5fb35916d066219d279467},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Galfalvy-2009-J%20Affect%20Disord_Increased%20risk%20of%20su.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p9649},
  rating = {0}
}
@article{Cumming:2008,
  author = {G Cumming and S Finch},
  journal = {American Psychologist},
  title = {Inference by eye: Confidence intervals, and how to read pictures of data},
  year = {2008},
  date-added = {2010-01-10 11:33:21 +0100},
  date-modified = {2010-01-10 11:33:25 +0100},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1995},
  rating = {0}
}
@article{Rothman:2008p12312,
  author = {A J Rothman and P J Bickel and E Levina and J Zhu},
  journal = {Electronic Journal of Statistics},
  title = {Sparse permutation invariant covariance
estimation},
  abstract = {The paper proposes a method for constructing a sparse estimator for the inverse covariance (concentration) matrix in high-dimensional settings. The estimator uses a penalized normal likelihood approach and forces sparsity by using a lasso-type penalty. We establish a rate of con- vergence in the Frobenius norm as both data dimension p and sample size n are allowed to grow, and show that the rate depends explicitly on how sparse the true concentration matrix is. We also show that a correlation- based version of the method exhibits better rates in the operator norm. We also derive a fast iterative algorithm for computing the estimator, which relies on the popular Cholesky decomposition of the inverse but produces a permutation-invariant estimator. The method is compared to other es- timators on simulated data and on a real data example of tumor tissue classification using gene expression data.},
  pages = {494--515},
  volume = {2},
  year = {2008},
  date-added = {2010-06-12 09:29:19 +0200},
  date-modified = {2010-06-12 09:32:25 +0200},
  doi = {10.1214/08-EJS176},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Rothman-2008-Electronic%20Journal%20of%20Statistics_Sparse%20permutation%20i.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12312},
  rating = {0}
}
@article{ChicoLibran:2006p11396,
  author = {Eliseo Chico Libr{\'a}n},
  journal = {Span J Psychol},
  title = {Personality dimensions and subjective well-being},
  abstract = {This work examines the association between personality dimensions (extraversion and neuroticism) and subjective well-being. Subjective well-being is associated both with extraversion and neuroticism, and currently, neuroticism is generally considered the more important. A total of 368 students from the University of Rovira i Virgili completed the Extraversion and Neuroticism subscales of the revised Eysenck Personality Questionnaire (Eysenck, Eysenck, and Barrett, 1985), the Satisfaction with Life Scale (SWLS; Diener, Emmons, Larsen, and Griffin, 1985), and the Positive and Negative Affect Scale (Watson, Clark, and Tellegen, 1988). Regression analyses revealed the personality variable of neuroticism as one of the most important correlates of subjective well-being. Regression analyses also showed that 44% of the variance of subjective well-being was accounted for by neuroticism, whereas extraversion only explained 8% of the variance.},
  affiliation = {Universidad Rovira i Virgili, Facultad de Psicolog{\'\i}a, Carretera de Valls s/n, 43007 Tarragona, Spain. eliseo.chico@urv.net},
  number = {1},
  pages = {38--44},
  volume = {9},
  year = {2006},
  month = {May},
  language = {eng},
  keywords = {Personal Satisfaction, Male, Neurotic Disorders, Extraversion (Psychology), Affect, Regression Analysis, Female, Questionnaires, Adult, Humans, Personality, Multivariate Analysis},
  date-added = {2010-05-01 16:28:02 +0200},
  date-modified = {2010-07-29 19:53:35 +0200},
  pmid = {16673621},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Chico%20Libr%C3%A1n-2006-Span%20J%20Psychol_Personality%20dimensio.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11396},
  rating = {0}
}
@article{Rufer:2010p7834,
  author = {M Rufer and R Albrecht and O Schmidt and J Zaum and U Schnyder and I Hand and C Mueller-Pfeiffer},
  journal = {Eur Psychiatry},
  title = {Changes in quality of life following cognitive-behavioral group therapy for panic disorder},
  abstract = {BACKGROUND: Data about quality of life (QoL) are important to estimate the impact of diseases on functioning and well-being. The present study was designed to assess the association of different aspects of panic disorder (PD) with QoL and to examine the relationship between QoL and symptomatic outcome following brief cognitive-behavioral group therapy (CBGT). METHOD: The sample consisted of 55 consecutively recruited outpatients suffering from PD who underwent CBGT. QoL was assessed by the Medical Outcomes Study 36-item Short-Form Health Survey (SF-36) at baseline, post-treatment and six months follow-up. SF-36 baseline scores were compared with normative data obtained from a large German population sample. RESULTS: Agoraphobia, disability, and worries about health were significantly associated with decreased QoL, whereas frequency, severity and duration of panic attacks were not. Treatment responders showed significantly better QoL than non-responders. PD symptom reduction following CBGT was associated with considerable improvement in emotional and physical aspects of QoL. However, the vitality subscale of the SF-36 remained largely unchanged over time. CONCLUSIONS: Our results are encouraging for cognitive-behavior therapists who treat patients suffering from PD in groups, since decrease of PD symptoms appears to be associated with considerable improvements in QoL. Nevertheless, additional interventions designed to target specific aspects of QoL, in particular vitality, may be useful to enhance patients' well-being.},
  affiliation = {Department of Psychiatry, University Hospital of Z{\"u}rich, Culmannstrasse 8, 8091 Z{\"u}rich, Switzerland. michael.rufer@usz.ch},
  number = {1},
  pages = {8--14},
  volume = {25},
  year = {2010},
  month = {Jan},
  language = {eng},
  date-added = {2010-03-17 21:01:33 +0100},
  date-modified = {2010-03-17 21:01:34 +0100},
  doi = {10.1016/j.eurpsy.2009.05.003},
  pii = {S0924-9338(09)00084-4},
  pmid = {19545979},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Rufer-2010-Eur%20Psychiatry_Changes%20in%20quality%20o.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7834},
  rating = {0}
}
@article{Thompson:2002,
  author = {B Thompson},
  journal = {Journal of Counseling and Development},
  title = {"Statistical," "practical," and "clinical": How many kinds of significance do counselors need to consider?},
  pages = {64--71},
  volume = {80},
  year = {2002},
  date-added = {2010-01-10 11:33:21 +0100},
  date-modified = {2010-01-10 11:33:25 +0100},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2017},
  rating = {0}
}
@article{Yu:2008p2904,
  author = {Wei Yu and Melinda Clyne and Siobhan M Dolan and Ajay Yesupriya and Anja Wulf and Tiebin Liu and Muin J Khoury and Marta Gwinn},
  journal = {BMC Bioinformatics},
  title = {GAPscreener: an automatic tool for screening human genetic association literature in PubMed using the support vector machine technique},
  abstract = {BACKGROUND: Synthesis of data from published human genetic association studies is a critical step in the translation of human genome discoveries into health applications. Although genetic association studies account for a substantial proportion of the abstracts in PubMed, identifying them with standard queries is not always accurate or efficient. Further automating the literature-screening process can reduce the burden of a labor-intensive and time-consuming traditional literature search. The Support Vector Machine (SVM), a well-established machine learning technique, has been successful in classifying text, including biomedical literature. The GAPscreener, a free SVM-based software tool, can be used to assist in screening PubMed abstracts for human genetic association studies. RESULTS: The data source for this research was the HuGE Navigator, formerly known as the HuGE Pub Lit database. Weighted SVM feature selection based on a keyword list obtained by the two-way z score method demonstrated the best screening performance, achieving 97.5% recall, 98.3% specificity and 31.9% precision in performance testing. Compared with the traditional screening process based on a complex PubMed query, the SVM tool reduced by about 90% the number of abstracts requiring individual review by the database curator. The tool also ascertained 47 articles that were missed by the traditional literature screening process during the 4-week test period. We examined the literature on genetic associations with preterm birth as an example. Compared with the traditional, manual process, the GAPscreener both reduced effort and improved accuracy. CONCLUSION: GAPscreener is the first free SVM-based application available for screening the human genetic association literature in PubMed with high recall and specificity. The user-friendly graphical user interface makes this a practical, stand-alone application. The software can be downloaded at no charge.},
  affiliation = {National Office of Public Health Genomics, Coordinating Center for Health Promotion, Centers for Disease Control and Prevention, Atlanta, GA, USA. WYu@cdc.gov},
  pages = {205},
  volume = {9},
  year = {2008},
  month = {Jan},
  language = {eng},
  keywords = {Chromosome Mapping, Artificial Intelligence, Periodicals as Topic, Natural Language Processing, PubMed, Software, Linkage (Genetics), Humans, Pattern Recognition: Automated, Genome: Human},
  date-added = {2010-01-13 15:01:08 +0100},
  date-modified = {2010-01-13 15:01:08 +0100},
  doi = {10.1186/1471-2105-9-205},
  pii = {1471-2105-9-205},
  pmid = {18430222},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Yu-2008-BMC%20Bioinformatics_GAPscreener%20an%20auto.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2904},
  rating = {0}
}
@article{Berthoz:2008p13995,
  author = {Sylvie Berthoz and Michele Wessa and Gayannee Kedia and Bruno Wicker and Julie Gr{\`e}zes},
  journal = {Can J Psychiatry},
  title = {Cross-cultural validation of the empathy quotient in a French-speaking sample},
  abstract = {OBJECTIVE: The Empathy Quotient (EQ) is a self-report that was developed to measure the cognitive and affective aspects of empathy. We further evaluated its validity in 2 studies. METHOD: The psychometric qualities of the French version of the EQ, and its correspondence with 2 other measures of empathy (Interpersonal Reactivity Index and the Empathy Scale of the Impulsiveness-Venturesomeness-Empathy Questionnaire), and with dimensions of the emotional state (depression and anxiety), were evaluated in a sample of 410 students (201 men and 209 women). Second, the clinical validity of the EQ was investigated in participants expected to have dysfunctional empathy. For this purpose, EQ scores of 16 people with autistic spectrum disorder (ASD) were collected. RESULTS: The EQ showed satisfying internal, convergent, test-retest and discriminant validity. The confirmatory factorial analyses suggested a 3-factor structure offered a good fit to the data. The women's superiority in empathy was replicated. As expected, the ASD EQ scores were very low. CONCLUSION: This study provides further evidence that the EQ is reliable in this population and should be recommended to estimate empathy problems, notably in individuals with troubled interpersonal interaction patterns.},
  affiliation = {Department of Psychiatry for Adolescents and Young Adults, Institut Mutualiste Montsouris, University Rene Descartes, Paris, France. sylvie.berthoz@imm.fr},
  number = {7},
  pages = {469--77},
  volume = {53},
  year = {2008},
  month = {Jul},
  language = {eng},
  keywords = {Factor Analysis: Statistical, Empathy, Language, Cross-Cultural Comparison, Female, France, Canada, Male, Adult, Reproducibility of Results, Humans},
  date-added = {2010-08-04 09:22:53 +0200},
  date-modified = {2010-08-04 09:22:54 +0200},
  pmid = {18674405},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Berthoz-2008-Can%20J%20Psychiatry_Cross-cultural%20valid.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13995},
  rating = {0}
}
@article{Strobl:2009p8187,
  author = {C Strobl},
  journal = {The R Journal},
  title = {Party on!},
  abstract = {Random forests are one of the most popular statistical learning algorithms, and a variety of methods for fitting random forests and related recursive partitioning approaches is available in R. This paper points out two impor- tant features of the random forest implementa- tion cforest available in the party package: The resulting forests are unbiased and thus prefer- able to the randomForest implementation avail- able in randomForest if predictor variables are of different types. Moreover, a conditional per- mutation importance measure has recently been added to the party package, which can help eval- uate the importance of correlated predictor vari- ables. The rationale of this new measure is illus- trated and hands-on advice is given for the usage of recursive partitioning tools in R.},
  volume = {1/2},
  year = {2009},
  date-added = {2010-03-20 19:52:08 +0100},
  date-modified = {2010-07-29 19:53:30 +0200},
  pii = {2073-4859},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Strobl-2009-The%20R%20Journal_Party%20on!.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8187},
  rating = {0}
}
@misc{Zou:2004,
  author = {H Zou and T Hastie and R Tibshirani},
  journal = {Miscellaneous},
  title = {Sparse principal component analysis},
  year = {2004},
  month = {Apr},
  date-added = {2010-01-10 11:33:18 +0100},
  date-modified = {2010-01-10 11:33:25 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Zou-2004-Miscellaneous_Sparse%20principal%20com.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2061},
  rating = {0}
}
@article{Mosimann:2002p5478,
  author = {Urs P Mosimann and Susanne C Marr{\'e} and Stefan Werlen and Wolfgang Schmitt and Christian W Hess and Hans U Fisch and Thomas E Schlaepfer},
  journal = {Arch Gen Psychiatry},
  title = {Antidepressant effects of repetitive transcranial magnetic stimulation in the elderly: correlation between effect size and coil-cortex distance},
  number = {6},
  pages = {560--1},
  volume = {59},
  year = {2002},
  month = {Jun},
  language = {eng},
  keywords = {Tomography: X-Ray Computed, Brain, Treatment Outcome, Psychiatric Status Rating Scales, Methods, Aged, Cerebral Cortex, Transcranial Magnetic Stimulation, Humans, Depressive Disorder},
  date-added = {2010-02-12 14:38:43 +0100},
  date-modified = {2010-02-12 14:38:44 +0100},
  pii = {ylt0602-1},
  pmid = {12044199},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Mosimann-2002-Arch%20Gen%20Psychiatry_Antidepressant%20effec.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5478},
  rating = {0}
}
@article{Mathias:2007p8433,
  author = {Susan D Mathias and James B Bussel and James N George and Robert McMillan and Gary J Okano and Janet L Nichol},
  journal = {Health Qual Life Outcomes},
  title = {A disease-specific measure of health-related quality of life for use in adults with immune thrombocytopenic purpura: its development and validation},
  abstract = {BACKGROUND: No validated disease-specific measures are available to assess health-related quality of life (HRQoL) in adult subjects with immune thrombocytopenic purpura (ITP). Therefore, we sought to develop and validate the ITP-Patient Assessment Questionnaire (ITP-PAQ) for adult subjects with ITP. METHODS: Information from literature reviews, focus groups with subjects, and clinicians were used to develop 50 ITP-PAQ items. Factor analyses were conducted to develop the scale structure and reduce the number of items. The final 44-item ITP-PAQ, which includes ten scales [Symptoms (S), Bother-Physical Health (B), Fatigue/Sleep (FT), Activity (A), Fear (FR), Psychological Health (PH), Work (W), Social Activity (SA), Women's Reproductive Health (RH), and Overall (QoL)], was self-administered to adult ITP subjects at baseline and 7-10 days later. Test-retest reliability, internal consistency reliability, construct and known groups validity of the final ITP-PAQ were evaluated. RESULTS: Seventy-three subjects with ITP completed the questionnaire twice. Test-retest reliability, as measured by the intra-class correlation, ranged from 0.52-0.90. Internal consistency reliability was demonstrated with Cronbach's alpha for all scales above the acceptable level of 0.70 (range: 0.71-0.92), except for RH (0.66). Construct validity, assessed by correlating ITP-PAQ scales with established measures (Short Form-36 v.1, SF-36 and Center for Epidemiologic Studies Depression Scale, CES-D), was demonstrated through moderate correlations between the ITP-PAQ SA and SF-36 Social Function scales (r = 0.67), and between ITP-PAQ PH and SF-36 Mental Health Scales (r = 0.63). Moderate to strong inter-scale correlations were reported between ITP-PAQ scales and the CES-D, except for the RH scale. Known groups validity was evaluated by comparing mean scores for groups that differed clinically. Statistically significant differences (p < 0.01) were observed when subjects were categorized by treatment status [S, FT, B, A, PH, and QoL, perceived effectiveness of ITP treatment [S], and time elapsed since ITP diagnosis [PH]. CONCLUSION: Results provide preliminary evidence of the reliability and validity of the ITP-PAQ in adult subjects with ITP. Further work should be conducted to assess the responsiveness and to estimate the minimal clinical important difference of the ITP-PAQ to more fully understand the impact of ITP and its treatments on HRQoL.},
  affiliation = {Ovation Research Group, 188 Embarcadero, San Francisco, CA 94105, USA. smathias@ovation.org},
  pages = {11},
  volume = {5},
  year = {2007},
  month = {Jan},
  language = {eng},
  keywords = {Middle Aged, Male, Reproducibility of Results, Questionnaires, Humans, Female, Factor Analysis: Statistical, Adult, Purpura: Thrombocytopenic, Quality of Life, Splenectomy},
  date-added = {2010-03-21 17:53:06 +0100},
  date-modified = {2010-03-21 17:53:06 +0100},
  doi = {10.1186/1477-7525-5-11},
  pii = {1477-7525-5-11},
  pmid = {17316442},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Mathias-2007-Health%20and%20Quality%20of%20Life%20Outcomes_A%20disease-specific%20m.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8433},
  rating = {0}
}
@article{Bigos:2010p5732,
  author = {Kristin L Bigos and Daniel R Weinberger},
  journal = {Neuroimage},
  title = {Imaging genetics-days of future past},
  abstract = {Imaging genetics provides a unique tool with which to explore and evaluate the functional impact of brain-relevant genetic polymorphisms with the potential to understand their impact on behavior. Because statistical association with clinical diagnosis does not establish biological significance nor identify a mechanism of risk, imaging genetics is a uniquely valuable strategy for extending statistical evidence with biological data. Applications include identifying biologic mechanisms and pathways that mediate individual differences in complex behaviors and vulnerability to disease, and conversely identifying genes that contribute to functional variation in brain circuitry. Additionally, neuroimaging genetics can validate data that suggest an association with psychiatric illness as well as providing evidence of the mechanism of risk. This review also outlines several critical principles of imaging genetics including a rational approach to the selection of candidate genes, the selection of task paradigms that could be plausibly linked to the biology of the gene of interest, and careful control of non-genetic factors. The future of imaging genetics holds great promise for brain research and for biologic validation of genetic validation in CNS disorders, but a disciplined application of the basic principles outlined in this review is critical.},
  affiliation = {Clinical Brain Disorders Branch, Genes Cognition and Psychosis Program, Division of Intramural Research Program, National Institute of Mental Health, National Institutes of Health, 10 Center Drive, MSC 1379, Bethesda, MD 20892, USA.},
  pages = {},
  year = {2010},
  month = {Jan},
  language = {ENG},
  date-added = {2010-02-15 20:28:26 +0100},
  date-modified = {2010-03-21 19:31:42 +0100},
  doi = {10.1016/j.neuroimage.2010.01.035},
  pii = {S1053-8119(10)00055-8},
  pmid = {20080192},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5732},
  rating = {4}
}
@article{Meinshausen:2010p12329,
  author = {N Meinshausen},
  title = {Hierarchical Testing of Variable Importance},
  abstract = {Abstract. tion of relevant variables. Variable selection suffers from instability and the power to detect relevant variables is typically low if predictor variables are highly correlated. When taking the multiplicity of the testing problem into account, the power diminishes even further. To gain power and insight, it can be advantageous to look for influence not at the level of individual variables but rather at the level of clusters of highly correlated variables. We propose a hierarchical approach. Variable importance is first tested at the coarsest level, corresponding to the global null hypothesis. If possible, the method tries then to attribute any effect to smaller sub-clusters or even individual variables. The smallest possible clusters which still exhibit a significant influence on the response variable are retained. It is shown that the proposed testing procedure controls the family-wise error rate at a pre- specified level, simultaneously over all resolution levels. The method has comparable power to Bonferroni-Holm on the level of individual variables and dramatically larger power for coarser resolution levels. The best resolution level is selected adaptively.},
  date-added = {2010-06-12 10:06:22 +0200},
  date-modified = {2010-06-12 10:07:49 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Meinshausen--_Hierarchical%20Testing.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12329},
  rating = {4}
}
@article{Ghosh:2009p905,
  author = {D Ghosh},
  title = {Discrete nonparametric algorithms for outlier detection with genomic data},
  abstract = {In high-throughput studies involving genetic data such as from gene expression microarrays, differential expression analysis between two or more experimental conditions has been a very common analytical task. Much of the resulting literature on multiple comparisons has paid relatively little attention to the choice of test statistic. In this article, we focus on the issue of choice of test statistic based on a special pattern of differential expression. The approach here is based on recasting multiple comparisons procedures for assessing outlying expression values. A major complication is that the resulting p-values are discrete; some theoretical properties of sequential testing procedures in this context are explored. We propose the use of q-value estimation procedures in this setting. Data from a gene expression profiling experiment in prostate cancer are used to illustrate the methodology.},
  affiliation = {Penn State University},
  year = {2009},
  date-added = {2010-01-03 18:39:30 +0100},
  date-modified = {2010-01-03 18:40:35 +0100},
  url = {http://works.bepress.com/debashis_ghosh/38},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Ghosh-2009-_Discrete%20nonparametr.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p905},
  rating = {0}
}
@article{Shapiro:2000,
  author = {Alexander Shapiro and Jos M F Ten Berge},
  journal = {Psychometrika},
  title = {The asymptotic bias of minimum trace factor analysis, with applications to the greatest lower bound to reliability},
  number = {3},
  pages = {413--425},
  volume = {65},
  year = {2000},
  date-added = {2010-01-10 11:33:24 +0100},
  date-modified = {2010-01-10 11:33:25 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Shapiro-2000-Psychometrika_The%20asymptotic%20bias.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1924},
  rating = {0}
}
@article{Benjamini:2009p2899,
  author = {Yoav Benjamini and Yulia Gavrilov},
  journal = {arXiv},
  title = {A simple forward selection procedure based on false discovery rate  control},
  abstract = { We propose the use of a new false discovery rate (FDR) controlling procedure as a model selection penalized method, and compare its performance to that of other penalized methods over a wide range of realistic settings: nonorthogonal design matrices, moderate and large pool of explanatory variables, and both sparse and nonsparse models, in the sense that they may include a small and large fraction of the potential variables (and even all). The comparison is done by a comprehensive simulation study, using a quantitative framework for performance comparisons in the form of empirical minimaxity relative to a "random oracle": the oracle model selection performance on data dependent forward selected family of potential models. We show that FDR based procedures have good performance, and in particular the newly proposed method, emerges as having empirical minimax performance. Interestingly, using FDR level of 0.05 is a global best. },
  annote = {Published in: Annals of Applied Statistics 2009, Vol. 3, No. 1, 179-198

Published in at http://dx.doi.org/10.1214/08-AOAS194 the Annals of
  Applied Statistics (http://www.imstat.org/aoas/) by the Institute of
  Mathematical Statistics (http://www.imstat.org)},
  eprint = {0905.2819v1},
  volume = {stat.AP},
  year = {2009},
  month = {Jan},
  keywords = {stat.AP},
  date-added = {2010-01-13 14:59:31 +0100},
  date-modified = {2010-01-13 14:59:31 +0100},
  doi = {10.1214/08-AOAS194},
  pmid = {0905.2819v1},
  url = {http://arxiv.org/abs/0905.2819v1},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Benjamini-2009-arXiv_A%20simple%20forward%20sel.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2899},
  rating = {0}
}
@article{Bradlow:1999p12797,
  author = {E T Bradlow and H Wainer and X Wang},
  journal = {Psychometrika},
  title = {A bayesian random effects model for testlets},
  abstract = {Standard item response theory (IRT) models fit to dichotomous examination responses ignore the fact that sets of items (testlets) often come from a single common stimuli (e.g. a reading comprehension passage). In this setting, all items given to an examinee are unlikely to be conditionally independent (given examinee proficiency). Models that assume conditional independence will overestimate the precision with which examinee proficiency is measured. Overstatement of precision may lead to inaccurate inferences such as prematurely ending an examination in which the stopping rule is based on the estimated standard error of examinee proficiency (e.g., an adaptive test). To model examinations that may be a mixture of independent items and testlets, we modified one standard IRT model to include an additional random effect for items nested within the same testlet. We use a Bayesian framework to facilitate posterior inference via a Data Augmented Gibbs Sampler (DAGS; Tanner {\&} Wong, 1987). The modified and standard IRT models are both applied to a data set from a disclosed form of the SAT. We also provide simulation results that indicates that the degree of precision bias is a function of the variability of the testlet effects, as well as the testlet design.},
  number = {2},
  pages = {153--168},
  volume = {64},
  year = {1999},
  date-added = {2010-06-18 21:19:14 +0200},
  date-modified = {2010-06-18 21:20:45 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Bradlow-1999-Psychometrika_A%20bayesian%20random%20ef.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12797},
  rating = {0}
}
@article{Goldberg:2006p13886,
  author = {L R Goldberg and J A Johnson and H W Eber and R Hogan and M C Ashton and C R Cloninger and H G Gough},
  journal = {Journal of Research in Personality},
  title = {The international personality item pool and the future of public-domain personality measures},
  abstract = {Seven experts on personality measurement here discuss the viability of public-domain personality measures, focusing on the International Personality Item Pool (IPIP) as a prototype. Since its incep- tion in 1996, the use of items and scales from the IPIP has increased dramatically. Items from the IPIP have been translated from English into more than 25 other languages. Currently over 80 publications using IPIP scales are listed at the IPIP Web site (http://ipip.ori.org), and the rate of IPIP- related publications has been increasing rapidly. The growing popularity of the IPIP can be attrib- uted to Wve factors: (1) It is cost free; (2) its items can be obtained instantaneously via the Internet; (3) it includes over 2000 items, all easily available for inspection; (4) scoring keys for IPIP scales are provided; and (5) its items can be presented in any order, interspersed with other items, reworded, translated into other languages, and administered on the World Wide Web without asking permis- sion of anyone. The unrestricted availability of the IPIP raises concerns about possible misuse by unqualiWed persons, and the freedom of researchers to use the IPIP in idiosyncratic ways raises the possibility of fragmentation rather than scientiWc uniWcation in personality research.},
  pages = {84--96},
  volume = {40},
  year = {2006},
  date-added = {2010-07-29 18:05:48 +0200},
  date-modified = {2010-07-29 18:08:09 +0200},
  doi = {10.1016/j.jrp.2005.08.007},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Goldberg-2006-Journal%20of%20Research%20in%20Personality_The%20international%20pe.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13886},
  rating = {3}
}
@article{McArdle:2003p7206,
  author = {John J McArdle and Fumiaki Hamagami},
  journal = {Behav Genet},
  title = {Structural equation models for evaluating dynamic concepts within longitudinal twin analyses},
  abstract = {A great deal of prior research using structural equation models has focused on longitudinal analyses and biometric analyses. Some of this research has even considered the simultaneous analysis of both kinds of analytic problems. The key benefits of these kinds of analyses come from the estimation of novel parameters, such as the heritability of changes. This paper discusses some recent extensions of longitudinal multivariate models that can be informative within biometric designs. In the methods section we review a previous latent growth structural equation analysis of the New York Twin (NYT) longitudinal data (from McArdle et al., 1998). In the models section we recast this growth model in terms of latent difference scores, add several new dynamic components, including coupling parameters, and consider biometric components and examine model stability. In the results section we present new univariate and bivariate dynamic estimates and tests of various dynamic hypotheses for the NYT data, and we consider a few ways to interpret the age-related biometric components of these models. In the discussion we consider our limitations and present suggestions for future dynamic-genetic research.},
  affiliation = {Department of Psychology, University of Virginia, Charlottesville, VA, USA. jjm@virginia.edu},
  number = {2},
  pages = {137--59},
  volume = {33},
  year = {2003},
  month = {Mar},
  language = {eng},
  keywords = {Twin Studies as Topic, Models: Theoretical, Longitudinal Studies, Humans, Intelligence Tests},
  date-added = {2010-03-08 19:21:53 +0100},
  date-modified = {2010-07-29 20:09:07 +0200},
  pii = {460863},
  pmid = {14574148},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/McArdle-2003-Behav%20Genet_Structural%20equation.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7206},
  rating = {0}
}
@inproceedings{Thomas:2002c,
  author = {D R Thomas and A Cyr},
  journal = {Proceedings},
  title = {Applying item response theory methods to complex survey data},
  year = {2002},
  date-added = {2010-01-10 11:33:10 +0100},
  date-modified = {2010-01-10 11:33:25 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Thomas-2002-Proceedings_Applying%20item%20respon.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2182},
  rating = {0}
}
@article{Pereda:2005p12023,
  author = {Ernesto Pereda and Rodrigo Quian Quiroga and Joydeep Bhattacharya},
  journal = {Prog Neurobiol},
  title = {Nonlinear multivariate analysis of neurophysiological signals},
  abstract = {Multivariate time series analysis is extensively used in neurophysiology with the aim of studying the relationship between simultaneously recorded signals. Recently, advances on information theory and nonlinear dynamical systems theory have allowed the study of various types of synchronization from time series. In this work, we first describe the multivariate linear methods most commonly used in neurophysiology and show that they can be extended to assess the existence of nonlinear interdependence between signals. We then review the concepts of entropy and mutual information followed by a detailed description of nonlinear methods based on the concepts of phase synchronization, generalized synchronization and event synchronization. In all cases, we show how to apply these methods to study different kinds of neurophysiological data. Finally, we illustrate the use of multivariate surrogate data test for the assessment of the strength (strong or weak) and the type (linear or nonlinear) of interdependence between neurophysiological signals.},
  affiliation = {Department of Basic Physics, College of Physics and Mathematics, University of La Laguna, Avda. Astrof{\'\i}sico Fco. S{\'a}nchez s/n, 38205 La Laguna, Tenerife, Spain. eperdepa@ull.es},
  number = {1-2},
  pages = {1--37},
  volume = {77},
  year = {2005},
  month = {Jan},
  language = {eng},
  keywords = {Nonlinear Dynamics, Neurophysiology, Signal Processing: Computer-Assisted, Multivariate Analysis, Electroencephalography, Diagnosis: Computer-Assisted, Neurons, Computer Simulation, Animals, Models: Statistical, Humans, Models: Neurological, Action Potentials, Data Interpretation: Statistical},
  date-added = {2010-05-24 10:16:05 +0200},
  date-modified = {2010-05-24 10:16:06 +0200},
  doi = {10.1016/j.pneurobio.2005.10.003},
  pii = {S0301-0082(05)00119-X},
  pmid = {16289760},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Pereda-2005-Prog%20Neurobiol_Nonlinear%20multivaria.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12023},
  rating = {0}
}
@article{Lochner:2005p13007,
  author = {Christine Lochner and Sian M J Hemmings and Craig J Kinnear and Dana J H Niehaus and Daniel G Nel and Valerie A Corfield and Johanna C Moolman-Smook and Soraya Seedat and Dan J Stein},
  journal = {Compr Psychiatry},
  title = {Cluster analysis of obsessive-compulsive spectrum disorders in patients with obsessive-compulsive disorder: clinical and genetic correlates},
  abstract = {BACKGROUND: Comorbidity of certain obsessive-compulsive spectrum disorders (OCSDs; such as Tourette's disorder) in obsessive-compulsive disorder (OCD) may serve to define important OCD subtypes characterized by differing phenomenology and neurobiological mechanisms. Comorbidity of the putative OCSDs in OCD has, however, not often been systematically investigated. METHODS: The Structured Clinical Interview for Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition , Axis I Disorders-Patient Version as well as a Structured Clinical Interview for Putative OCSDs (SCID-OCSD) were administered to 210 adult patients with OCD (N = 210, 102 men and 108 women; mean age, 35.7 +/- 13.3). A subset of Caucasian subjects (with OCD, n = 171; control subjects, n = 168), including subjects from the genetically homogeneous Afrikaner population (with OCD, n = 77; control subjects, n = 144), was genotyped for polymorphisms in genes involved in monoamine function. Because the items of the SCID-OCSD are binary (present/absent), a cluster analysis (Ward's method) using the items of SCID-OCSD was conducted. The association of identified clusters with demographic variables (age, gender), clinical variables (age of onset, obsessive-compulsive symptom severity and dimensions, level of insight, temperament/character, treatment response), and monoaminergic genotypes was examined. RESULTS: Cluster analysis of the OCSDs in our sample of patients with OCD identified 3 separate clusters at a 1.1 linkage distance level. The 3 clusters were named as follows: (1) "reward deficiency" (including trichotillomania, Tourette's disorder, pathological gambling, and hypersexual disorder), (2) "impulsivity" (including compulsive shopping, kleptomania, eating disorders, self-injury, and intermittent explosive disorder), and (3) "somatic" (including body dysmorphic disorder and hypochondriasis). Several significant associations were found between cluster scores and other variables; for example, cluster I scores were associated with earlier age of onset of OCD and the presence of tics, cluster II scores were associated with female gender and childhood emotional abuse, and cluster III scores were associated with less insight and with somatic obsessions and compulsions. However, none of these clusters were associated with any particular genetic variant. CONCLUSION: Analysis of comorbid OCSDs in OCD suggested that these lie on a number of different dimensions. These dimensions are partially consistent with previous theoretical approaches taken toward classifying OCD spectrum disorders. The lack of genetic validation of these clusters in the present study may indicate the involvement of other, as yet untested, genes. Further genetic and cluster analyses of comorbid OCSDs in OCD may ultimately contribute to a better delineation of OCD endophenotypes.},
  affiliation = {MRC Unit on Anxiety and Stress Disorders, Department of Psychiatry, University of Stellenbosch, PO Box 19063, Tygerberg, 7505, Cape Town, South Africa. cl2@sun.ac.za},
  number = {1},
  pages = {14--9},
  volume = {46},
  year = {2005},
  month = {Jan},
  language = {eng},
  keywords = {Genotype, Tourette Syndrome, Adult, Adolescent, Questionnaires, Interview: Psychological, Trichotillomania, Female, Polymorphism: Genetic, Comorbidity, Obsessive-Compulsive Disorder, Male, Cluster Analysis, Monoamine Oxidase, Middle Aged, Self-Injurious Behavior, Severity of Illness Index, Humans, Aged, Gambling, Serotonin, Impulse Control Disorders},
  date-added = {2010-06-25 22:37:34 +0200},
  date-modified = {2010-07-29 19:24:13 +0200},
  doi = {10.1016/j.comppsych.2004.07.020},
  pmid = {15714189},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Lochner-2005-Compr%20Psychiatry_Cluster%20analysis%20of.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13007},
  rating = {0}
}
@article{Suhr:2005p4092,
  author = {D D Suhr},
  journal = {SUGI 30},
  title = {Principal Component Analysis vs. Exploratory Factor Analysis},
  abstract = {Principal Component Analysis (PCA) and Exploratory Factor Analysis (EFA) are both variable reduction techniques and sometimes mistaken as the same statistical method. However, there are distinct differences between PCA and EFA. Similarities and differences between PCA and EFA will be examined. Examples of PCA and EFA with PRINCOMP and FACTOR will be illustrated and discussed.},
  number = {203-30},
  year = {2005},
  date-added = {2010-01-19 23:21:05 +0100},
  date-modified = {2010-01-19 23:21:40 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Suhr-2005-SUGI%2030_Principal%20Component.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4092},
  rating = {0}
}
@article{Cella:2005p13616,
  author = {David Cella},
  journal = {J Support Oncol},
  title = {Quality of life outcomes: measurement and intervention},
  number = {2},
  pages = {133--4},
  volume = {3},
  year = {2005},
  month = {Jan},
  language = {eng},
  keywords = {Outcome Assessment (Health Care), Quality of Life, Meta-Analysis as Topic, Melanoma, Review Literature as Topic, Humans},
  date-added = {2010-07-07 21:18:43 +0200},
  date-modified = {2010-07-07 21:18:43 +0200},
  pmid = {15796445},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Cella-2005-J%20Support%20Oncol_Quality%20of%20life%20outc.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13616},
  rating = {0}
}
@article{vanAbswoude:2004p3420,
  author = {A A H van Abswoude and J K Vermunt and B T Hemker and L Andries van der Ark},
  journal = {Applied Psychological Measurement},
  title = {Mokken Scale Analysis Using Hierarchical Clustering Procedures},
  abstract = {Mokken scale analysis (MSA) can be used to assess and build unidimensional scales from an item pool that is sensitive to multiple dimensions. These scales satisfy a set of scaling conditions, one of which follows from the model of monotone homogeneity. An important drawback of the MSA program is that the sequential item selection and scale construction procedure may not find the dominant underlying dimensionality of the responses to a set of items. The authors investigated alternative hierarchical item selection procedures and compared the performance of four hierarchical methods and the sequential clustering method in the MSA context. The results showed that hierarchical clustering methods can improve the search process of the dominant dimensionality of a data matrix. In particular, the complete linkage and scale linkage methods were promising in finding the dimensionality of the item response data from a set of items.},
  number = {5},
  pages = {332--354},
  volume = {28},
  year = {2004},
  date-added = {2010-01-15 14:56:14 +0100},
  date-modified = {2010-07-29 20:42:55 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/van%20Abswoude-2004-Applied%20Psychological%20Measurement_Mokken%20Scale%20Analysi.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3420},
  rating = {0}
}
@article{Sparapani:2008p2366,
  author = {R A Sparapani and P W Laud},
  title = {A Recent History of Bayesian Statistical Software},
  year = {2008},
  date-added = {2010-01-10 13:42:25 +0100},
  date-modified = {2010-01-10 13:43:04 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Sparapani-2008-_A%20Recent%20History%20of.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2366},
  rating = {0}
}
@article{Gal:2003p3697,
  author = {I Gal and M van Groenestijn and M Manly and M J Schmitt and D Tout},
  title = {Adult numeracy and its assessment in the ALL survey: A conceptual framework and pilot results},
  year = {2003},
  date-added = {2010-01-16 20:49:34 +0100},
  date-modified = {2010-01-16 20:50:26 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Gal-2003-_Adult%20numeracy%20and%20i.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3697},
  rating = {0}
}
@article{Boughton:2001p11153,
  author = {K A Boughton and D A Klinger and M J Gierl},
  journal = {Annual meeting of the National Council on Measurement in Education},
  title = {Effects of Random Rater Error on Parameter Recovery of the Generalized Partial Credit Model and Graded Response Model},
  year = {2001},
  date-added = {2010-04-25 19:20:17 +0200},
  date-modified = {2010-07-29 19:15:08 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Boughton-2001-Annual%20meeting%20of%20the%20National%20Council%20on%20Measurement%20in%20Education_Effects%20of%20Random%20Ra-1.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11153},
  rating = {0}
}
@article{Palomo:2004p7563,
  author = {Tomas Palomo and R M Kostrzewa and R J Beninger and T Archer},
  journal = {Neurotox Res},
  title = {Gene-environment interplay in alcoholism and other substance abuse disorders: expressions of heritability and factors influencing vulnerability},
  abstract = {Factors that confer predisposition and vulnerability for alcoholism and other substance abuse disorders may be described usefully within the gene-environment interplay framework. Thus, it is postulated that heritability provides a major contribution not only to alcohol but also to other substances of abuse. Studies of evoked potential amplitude reduction have provided a highly suitable and testable method for the assessment of both environmentally-determined and heritable characteristics pertaining to substance use and dependence. The different personal attributes that may co-exist with parental influence or exist in a shared, monozygotic relationship contribute to the final expression of addiction. In this connection, it appears that personality disorders are highly prevalent co-morbid conditions among addicted individuals, and, this co-morbidity is likely to be accounted for by multiple complex etiological relationships, not least in adolescent individuals. Co-morbidity associated with deficient executive functioning may be observed too in alcohol-related aggressiveness and crimes of violence. The successful intervention into alcohol dependence and craving brought about by baclofen in both human and animal studies elucidates glutamatergic mechanisms in alcoholism whereas the role of the dopamine transporter, in conjunction with both the noradrenergic and serotonergic transporters, are implicated in cocaine dependence and craving. The role of the cannabinoids in ontogeny through an influence upon the expression of key genes for the development of neurotransmitter systems must be considered. Finally, the particular form of behaviour/characteristic outcome due to childhood circumstance may lie with biological, gene-based determinants, for example individual characteristics of monoamine oxidase (MAO) activity levels, thereby rendering simple predictive measures both redundant and misguiding.},
  affiliation = {Servicio Psiqui{\'a}trico, Hospital Universitario 12 de Octubre, Avda. de C{\'o}rdoba s/n, 28041 Madrid, Spain.},
  number = {5},
  pages = {343--61},
  volume = {6},
  year = {2004},
  month = {Jan},
  language = {eng},
  keywords = {Alcoholism, gamma-Aminobutyric Acid, Personality, Humans, Event-Related Potentials: P300, Violence, Substance-Related Disorders, Biogenic Monoamines},
  date-added = {2010-03-14 10:56:49 +0100},
  date-modified = {2010-03-14 10:56:49 +0100},
  pmid = {15545018},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Palomo-2004-Neurotox%20Res_Gene-environment%20int.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7563},
  rating = {0}
}
@article{Bullinger:1993p8436,
  author = {M Bullinger and R Anderson and D Cella and Neil K Aaronson},
  journal = {Qual Life Res},
  title = {Developing and evaluating cross-cultural instruments from minimum requirements to optimal models},
  abstract = {In the age of increased international collaboration in medical research, the necessity of having at hand cross-culturally applicable instruments for the assessment of health-related quality of life (HRQL) in clinical trials has been voiced. Several important theoretical bases leading to cultural bias in HRQL measurement include differences in definitions of HRQL across national and cultural contexts, levels of observation relied upon to indicate HRQL states, and the significance or weight placed upon the various HRQL states or dimensions measured. Despite a growing literature on the development and evaluation of existing HRQL measures in other cultures, comprehensive sets of procedures or requirements for the international part of development and evaluation are lacking. This paper reviews major approaches to developing international HRQL measures, and discusses various methods and criteria that have been recommended for evaluating measurement equivalence in comparisons of research across national and cultural contexts. A summary of recent trends and advances in international HRQL assessment is presented.},
  affiliation = {Institute for Medical Psychology, University of Munich, Germany.},
  number = {6},
  pages = {451--9},
  volume = {2},
  year = {1993},
  month = {Dec},
  language = {eng},
  keywords = {Psychometrics, Health Surveys, International Cooperation, Evaluation Studies as Topic, Cross-Cultural Comparison, Bias (Epidemiology), Reproducibility of Results, Research, Translating, Quality of Life, Questionnaires},
  date-added = {2010-03-21 17:55:27 +0100},
  date-modified = {2010-07-29 20:13:56 +0200},
  pmid = {8161979},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Bullinger-1993-Qual%20Life%20Res_Developing%20and%20evalu.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8436},
  rating = {5}
}
@article{Hesterberg:2008p2319,
  author = {T Hesterberg and N H Choi and L Meier and C Fraley},
  journal = {Statistics Surveys},
  title = {Least angle and l1 penalized regression: A review},
  abstract = {Least Angle Regression is a promising technique for variable selection applications, offering a nice alternative to stepwise regression. It provides an explanation for the similar behavior of LASSO (l1-penalized regression) and forward stagewise regression, and provides a fast imple- mentation of both. The idea has caught on rapidly, and sparked a great deal of research interest. In this paper, we give an overview of Least Angle Regression and the current state of related research.},
  pages = {61--93},
  volume = {2},
  year = {2008},
  date-added = {2010-01-10 12:37:18 +0100},
  date-modified = {2010-01-10 12:38:46 +0100},
  doi = {10.1214/08-SS035},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Hesterberg-2008-Statistics%20Surveys_Least%20angle%20and%20l1%20p.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2319},
  rating = {0}
}
@article{Gomez:2009p13089,
  author = {V Gomez and F Krings and A Bangerter and A Grob},
  journal = {Journal of Research in Personality},
  title = {The influence of personality and life events on subjective well-being from a life span perspective},
  abstract = {We investigate the relation between personality (Big Five) and positive and negative life events as pre- dictors of subjective well-being (SWB) in a sample of 766 young, middle-aged, and old adults. Analyses comprised data on personality, SWB, and reconstructed positive and negative life events. Results for the total sample indicate a strong relation between neuroticism and SWB, and an important influence of reconstructed life events on SWB with a stronger effect for negative as compared to positive events. Age differences in the prediction of SWB emerge for personality and life events: extraversion is only a predictor of SWB in young adults and the effect of neuroticism is more pronounced in old adults. More- over, the influence of negative life events on SWB is stronger in young and middle-aged adults as com- pared to old adults. These results emphasize the need to study dispositional and situational variables across the life span in order to better understand the underlying mechanisms of SWB.},
  pages = {345--354},
  volume = {43},
  year = {2009},
  date-added = {2010-06-26 10:19:06 +0200},
  date-modified = {2010-07-29 19:36:11 +0200},
  doi = {10.1016/j.jrp.2008.12.014},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Gomez-2009-Journal%20of%20Research%20in%20Personality_The%20influence%20of%20per.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13089},
  rating = {0}
}
@article{Hoh:2001p1608,
  author = {J Hoh and A Wille and J Ott},
  journal = {Genome Res},
  title = {Trimming, weighting, and grouping SNPs in human case-control association studies},
  abstract = {The search for genes underlying complex traits has been difficult and often disappointing. The main reason for these difficulties is that several genes, each with rather small effect, might be interacting to produce the trait. Therefore, we must search the whole genome for a good chance to find these genes. Doing this with tens of thousands of SNP markers, however, greatly increases the overall probability of false-positive results, and current methods limiting such error probabilities to acceptable levels tend to reduce the power of detecting weak genes. Investigating large numbers of SNPs inevitably introduces errors (e.g., in genotyping), which will distort analysis results. Here we propose a simple strategy that circumvents many of these problems. We develop a set-association method to blend relevant sources of information such as allelic association and Hardy-Weinberg disequilibrium. Information is combined over multiple markers and genes in the genome, quality control is improved by trimming, and an appropriate testing strategy limits the overall false-positive rate. In contrast to other available methods, our method to detect association to sets of SNP markers in different genes in a real data application has shown remarkable success.},
  affiliation = {Laboratory of Statistical Genetics, Rockefeller University, New York, New York 10021, USA.},
  number = {12},
  pages = {2115--9},
  volume = {11},
  year = {2001},
  month = {Dec},
  language = {eng},
  keywords = {Polymorphism: Single Nucleotide, Case-Control Studies, Humans, Phenotype, Linkage Disequilibrium, Models: Statistical, Models: Genetic, Genotype},
  date-added = {2010-01-07 17:04:30 +0100},
  date-modified = {2010-01-07 17:04:30 +0100},
  doi = {10.1101/gr.204001},
  pmid = {11731502},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Hoh-2001-Genome%20Res_Trimming%20weighting.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1608},
  rating = {0}
}
@article{Burdick:2006p2483,
  author = {Katherine E Burdick and Todd Lencz and Birgit Funke and Christine T Finn and Philip R Szeszko and John M Kane and Raju Kucherlapati and Anil K Malhotra},
  journal = {Hum Mol Genet},
  title = {Genetic variation in DTNBP1 influences general cognitive ability},
  abstract = {Human intelligence is a trait that is known to be significantly influenced by genetic factors, and recent linkage data provide positional evidence to suggest that a region on chromosome 6p, previously associated with schizophrenia, may be linked to variation in intelligence. The gene for dysbindin-1 (DTNBP1) is located at 6p and has also been implicated in schizophrenia, a neuropsychiatric disorder characterized by cognitive dysfunction. We report an association between DTNBP1 genotype and general cognitive ability (g) in two independent cohorts, including 213 patients with schizophrenia or schizo-affective disorder and 126 healthy volunteers. These data suggest that DTNBP1 genetic variation influences human intelligence.},
  affiliation = {Department of Psychiatry Research, The Zucker Hillside Hospital, North Shore-Long Island Jewish Health System, Albert Einstein College of Medicine, Glen Oaks, NY 11004, USA. kburdick@lij.edu},
  number = {10},
  pages = {1563--8},
  volume = {15},
  year = {2006},
  month = {May},
  language = {eng},
  keywords = {Chromosomes: Human: Pair 6, Psychotic Disorders, Genotype, Humans, Intelligence, Carrier Proteins, Genetic Markers, Adult, Cognition, Aged, Genetic Variation, Female, Schizophrenic Psychology, Middle Aged, Schizophrenia, Male},
  date-added = {2010-01-12 13:31:49 +0100},
  date-modified = {2010-07-29 19:28:52 +0200},
  doi = {10.1093/hmg/ddi481},
  pii = {ddi481},
  pmid = {16415041},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Burdick-2006-Hum%20Mol%20Genet_Genetic%20variation%20in.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2483},
  rating = {0}
}
@article{Petersen:2008p3004,
  author = {Maya L Petersen and Mark J van der Laan and Sonia Napravnik and Joseph J Eron and Richard D Moore and Steven G Deeks},
  journal = {AIDS},
  title = {Long-term consequences of the delay between virologic failure of highly active antiretroviral therapy and regimen modification},
  abstract = {OBJECTIVES: Current treatment guidelines recommend immediate modification of antiretroviral therapy in HIV-infected individuals with incomplete viral suppression. These recommendations have not been tested in observational studies or large randomized trials. We evaluated the consequences of delayed modification following virologic failure. DESIGN/METHODS: We used prospective data from two clinical cohorts to estimate the effect of time until regimen modification following first regimen failure on all-cause mortality. The impact of regimen type was also assessed. As the effect of delayed switching can be confounded if patients with a poor prognosis modify therapy earlier than those with a good prognosis, we used a statistical methodology - marginal structural models - to control for time-dependent confounding. RESULTS: A total of 982 patients contributed 3414 person-years of follow-up following first regimen failure. Delay until treatment modification was associated with an elevated hazard of all-cause mortality among patients failing a reverse transcriptase inhibitor-based regimen (hazard ratio per additional 3 months delay = 1.23, 95% confidence interval: 1.08, 1.40), but appeared to have a small protective effect among patients failing a protease inhibitor-based regimen (hazard ratio per additional 3 months delay = 0.93, 95% confidence interval: 0.87, 0.99). CONCLUSION: Delay in modification after failure of regimens that do not contain a protease inhibitor is associated with increased mortality. Protease inhibitor-based regimens are less dependent on early versus delayed switching strategies. Efforts should be made to minimize delay until treatment modification in resource-poor regions, where the majority of patients are starting reverse transcriptase inhibitor-based regimens and HIV RNA monitoring may not be available.},
  affiliation = {Division of Biostatistics, Berkeley School of Public Health, Berkeley, California 94720, USA. mayaliv@berkeley.edu},
  number = {16},
  pages = {2097--106},
  volume = {22},
  year = {2008},
  month = {Oct},
  language = {eng},
  keywords = {Middle Aged, Antiretroviral Therapy: Highly Active, United States, HIV Infections, Drug Resistance: Viral, Treatment Outcome, CD4 Lymphocyte Count, HIV Protease Inhibitors, Drug Administration Schedule, Treatment Failure, Female, Humans, Reverse Transcriptase Inhibitors, Male, Adult, Anti-HIV Agents},
  date-added = {2010-01-13 23:14:35 +0100},
  date-modified = {2010-07-29 19:12:25 +0200},
  doi = {10.1097/QAD.0b013e32830f97e2},
  pii = {00002030-200810180-00007},
  pmid = {18832873},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Petersen-2008-AIDS_Long-term%20consequenc.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3004},
  rating = {0}
}
@article{Huebner:2010p4183,
  author = {A Huebner},
  journal = {Practical Assessment Research \{\&} Evaluation},
  title = {An Overview of Recent Developments in Cognitive Diagnostic Computer Adaptive Assessments},
  abstract = {Cognitive diagnostic modeling has become an exciting new field of psychometric research. These models aim to diagnose examinees' mastery status of a group of discretely defined skills, or attributes, thereby providing them with detailed information regarding their specific strengths and weaknesses. Combining cognitive diagnosis with computer adaptive assessments has emerged as an important part of this new field. This article aims to provide practitioners and researchers with an introduction to and overview of recent developments in cognitive diagnostic computer adaptive assessments.},
  number = {3},
  volume = {15},
  year = {2010},
  date-added = {2010-01-21 07:52:03 +0100},
  date-modified = {2010-07-29 19:44:42 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Huebner-2010-Practical%20Assessment%20Research%20%20&%20Evaluation_An%20Overview%20of%20Recen.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4183},
  rating = {0}
}
@techreport{Brown:2005,
  author = {N J S Brown},
  journal = {Techreport},
  title = {The Multidimensional Measure of Conceptual Complexity},
  affiliation = {BEAR Center},
  year = {2005},
  month = {Apr},
  date-added = {2010-01-10 11:33:20 +0100},
  date-modified = {2010-01-10 11:33:25 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Brown-2005-Techreport_The%20Multidimensional.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1912},
  rating = {0}
}
@article{Mokkink:2010p10574,
  author = {Lidwine B Mokkink and Caroline B Terwee and Donald L Patrick and Jordi Alonso and Paul W Stratford and Dirk L Knol and Lex M Bouter and Henrica C W de Vet},
  journal = {Qual Life Res},
  title = {The COSMIN checklist for assessing the methodological quality of studies on measurement properties of health status measurement instruments: an international Delphi study},
  abstract = {BACKGROUND: Aim of the COSMIN study (COnsensus-based Standards for the selection of health status Measurement INstruments) was to develop a consensus-based checklist to evaluate the methodological quality of studies on measurement properties. We present the COSMIN checklist and the agreement of the panel on the items of the checklist. METHODS: A four-round Delphi study was performed with international experts (psychologists, epidemiologists, statisticians and clinicians). Of the 91 invited experts, 57 agreed to participate (63%). Panel members were asked to rate their (dis)agreement with each proposal on a five-point scale. Consensus was considered to be reached when at least 67% of the panel members indicated 'agree' or 'strongly agree'. RESULTS: Consensus was reached on the inclusion of the following measurement properties: internal consistency, reliability, measurement error, content validity (including face validity), construct validity (including structural validity, hypotheses testing and cross-cultural validity), criterion validity, responsiveness, and interpretability. The latter was not considered a measurement property. The panel also reached consensus on how these properties should be assessed. CONCLUSIONS: The resulting COSMIN checklist could be useful when selecting a measurement instrument, peer-reviewing a manuscript, designing or reporting a study on measurement properties, or for educational purposes.},
  affiliation = {Department of Epidemiology and Biostatistics and the EMGO Institute for Health and Care Research, VU University Medical Center, Van der Boechorststraat 7, 1081 BT, Amsterdam, The Netherlands, w.mokkink@vumc.nl.},
  pages = {},
  year = {2010},
  month = {Feb},
  language = {ENG},
  date-added = {2010-04-07 11:40:01 +0200},
  date-modified = {2010-07-29 19:48:31 +0200},
  doi = {10.1007/s11136-010-9606-8},
  pmid = {20169472},
  url = {http://www.springerlink.com/content/76u6574071x7v084/},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Mokkink-2010-Qual%20Life%20Res_The%20COSMIN%20checklist.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p10574},
  rating = {0}
}
@article{Sarkar:2008p4357,
  author = {Sanat K Sarkar},
  journal = {arXiv},
  title = {Generalizing Simes' test and Hochberg's stepup procedure},
  abstract = { In a multiple testing problem where one is willing to tolerate a few false rejections, procedure controlling the familywise error rate (FWER) can potentially be improved in terms of its ability to detect false null hypotheses by generalizing it to control the {\$}k{\$}-FWER, the probability of falsely rejecting at least {\$}k{\$} null hypotheses, for some fixed {\$}k>1{\$}. Simes' test for testing the intersection null hypothesis is generalized to control the {\$}k{\$}-FWER weakly, that is, under the intersection null hypothesis, and Hochberg's stepup procedure for simultaneous testing of the individual null hypotheses is generalized to control the {\$}k{\$}-FWER strongly, that is, under any configuration of the true and false null hypotheses. The proposed generalizations are developed utilizing joint null distributions of the {\$}k{\$}-dimensional subsets of the {\$}p{\$}-values, assumed to be identical. The generalized Simes' test is proved to control the {\$}k{\$}-FWER weakly under the multivariate totally positive of order two (MTP{\$}_2{\$}) condition [J. Multivariate Analysis 10 (1980) 467-498] of the joint null distribution of the {\$}p{\$}-values by generalizing the original Simes' inequality. It is more powerful to detect {\$}k{\$} or more false null hypotheses than the original Simes' test when the {\$}p{\$}-values are independent. A stepdown procedure strongly controlling the {\$}k{\$}-FWER, a version of generalized Holm's procedure that is different from and more powerful than [Ann. Statist. 33 (2005) 1138-1154] with independent {\$}p{\$}-values, is derived before proposing the generalized Hochberg's procedure. The strong control of the {\$}k{\$}-FWER for the generalized Hochberg's procedure is established in situations where the generalized Simes' test is known to control its {\$}k{\$}-FWER weakly. },
  annote = {Published in: Annals of Statistics 2008, Vol. 36, No. 1, 337-363

Published in at http://dx.doi.org/10.1214/009053607000000550 the
  Annals of Statistics (http://www.imstat.org/aos/) by the Institute of
  Mathematical Statistics (http://www.imstat.org)},
  eprint = {0803.1961v1},
  volume = {math.ST},
  year = {2008},
  month = {Jan},
  keywords = {math.ST, stat.TH, 62J15 (Primary)},
  date-added = {2010-01-27 18:30:00 +0100},
  date-modified = {2010-01-27 18:30:00 +0100},
  doi = {10.1214/009053607000000550},
  pmid = {0803.1961v1},
  url = {http://arxiv.org/abs/0803.1961v1},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4357},
  rating = {0}
}
@article{Matsunaga:2010p9139,
  author = {Miki Matsunaga and Yasumasa Okamoto and Shin-Ichi Suzuki and Akiko Kinoshita and Shinpei Yoshimura and Atsuo Yoshino and Yoshihiko Kunisato and Shigeto Yamawaki},
  journal = {BMC Psychiatry},
  title = {Psychosocial functioning in patients with treatment-resistant depression after group cognitive behavioral therapy},
  abstract = {ABSTRACT: BACKGROUND: Although patients with Treatment Resistant Depression (TRD) often have impaired social functioning, few studies have investigated the effectiveness of psychosocial treatment for these patients. We examined whether adding group cognitive behavioral therapy (group-CBT) to medication would improve both the depressive symptoms and the social functioning of patient with mild TRD, and whether any improvements would be maintained over one year. METHODS: Forty-three patients with TRD were treated with 12 weekly sessions of group-CBT. Patients were assessed with the Global Assessment of Functioning scale (GAF), the 36-item Short-Form Health Survey (SF-36), the Hamilton Rating Scale for Depression (HRSD), the Dysfunctional Attitudes Scale (DAS), and the Automatic Thought Questionnaire-Revised (ATQ-R) at baseline, at the termination of treatment, and at the 12-month follow-up. RESULTS: Thirty-eight patients completed treatment; five dropped out. For the patients who completed treatment, post-treatment scores on the GAF and SF-36 were significantly higher than baseline scores. Scores on the HRSD, DAS, and ATQ-R were significantly lower after the treatment. Thus patients improved on all measurements of psychosocial functioning and mood symptoms. Twenty patients participated in the 12-month follow-up. Their improvements for psychosocial functioning, depressive symptoms, and dysfunctional cognitions were sustained at 12 months following the completion of group-CBT. CONCLUSIONS: These findings suggest a positive effect that the addition of cognitive behavioural group therapy to medication on depressive symptoms and social functioning of mildly depressed patients, showing treatment resistance.},
  number = {1},
  pages = {22},
  volume = {10},
  year = {2010},
  month = {Mar},
  language = {ENG},
  date-added = {2010-03-22 13:31:09 +0100},
  date-modified = {2010-03-22 13:31:09 +0100},
  doi = {10.1186/1471-244X-10-22},
  pii = {1471-244X-10-22},
  pmid = {20230649},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Matsunaga-2010-BMC%20Psychiatry_Psychosocial%20functio-1.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p9139},
  rating = {0}
}
@article{Harris:2006p4601,
  author = {M Harris and J Richters},
  journal = {Social research Briefs},
  title = {Psychosocial aspects of living with hepatitis C},
  affiliation = {National Centre in HIV Social Research, University of New South Wales},
  volume = {8},
  year = {2006},
  date-added = {2010-01-29 22:34:19 +0100},
  date-modified = {2010-01-29 22:35:08 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Harris-2006-Social%20research%20Briefs_Psychosocial%20aspects.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4601},
  rating = {0}
}
@article{Kornr:2007p8368,
  author = {Hege Korn{\o}r and Hilmar Nordvik},
  journal = {BMC Psychiatry},
  title = {Five-factor model personality traits in opioid dependence},
  abstract = {BACKGROUND: Personality traits may form a part of the aetiology of opioid dependence. For instance, opioid dependence may result from self-medication in emotionally unstable individuals, or from experimenting with drugs in sensation seekers. The five factor model (FFM) has obtained a central position in contemporary personality trait theory. The five factors are: Neuroticism, Extraversion, Openness to Experience, Agreeableness and Conscientiousness. Few studies have examined whether there is a distinct personality pattern associated with opioid dependence. METHODS: We compared FFM personality traits in 65 opioid dependent persons (mean age 27 years, 34% females) in outpatient counselling after a minimum of 5 weeks in buprenorphine replacement therapy, with those in a non-clinical, age- and sex-matched sample selected from a national database. Personality traits were assessed by a Norwegian version of the Revised NEO Personality Inventory (NEO PI-R), a 240-item self-report questionnaire. Cohen's d effect sizes were calculated for the differences in personality trait scores. RESULTS: The opioid-dependent sample scored higher on Neuroticism, lower on Extraversion and lower on Conscientiousness (d = -1.7, 1.2 and 1.7, respectively) than the controls. Effects sizes were small for the difference between the groups in Openness to experience scores and Agreeableness scores. CONCLUSION: We found differences of medium and large effect sizes between the opioid dependent group and the matched comparison group, suggesting that the personality traits of people with opioid dependence are in fact different from those of non-clinical peers.},
  affiliation = {Norwegian Knowledge Centre for the Health Services, Olavsplass, Oslo, Norway. hege.kornor@kunnskapssenteret.no},
  pages = {37},
  volume = {7},
  year = {2007},
  month = {Jan},
  language = {eng},
  keywords = {Outpatients, Personality Assessment, Case-Control Studies, Female, Adult, Male, Models: Psychological, Personality, Humans, Opioid-Related Disorders},
  date-added = {2010-03-21 13:01:26 +0100},
  date-modified = {2010-07-11 09:52:52 +0200},
  doi = {10.1186/1471-244X-7-37},
  pii = {1471-244X-7-37},
  pmid = {17683593},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Korn%C3%B8r-2007-BMC%20Psychiatry_Five-factor%20model%20pe.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8368},
  rating = {3}
}
@article{Borrmann:2008p6471,
  author = {Steffen Borrmann and Tim Peto and Robert W Snow and Win Gutteridge and Nicholas J White},
  journal = {PLoS Med},
  title = {Revisiting the design of phase III clinical trials of antimalarial drugs for uncomplicated Plasmodium falciparum malaria},
  affiliation = {Steffen Borrmann is with the Kenya Medical Research Institute, Wellcome Trust Research Programme, Centre for Geographical Medicine Research, Coast, Kilifi, Kenya. sborrmann@kilifi.kemri-wellcome.org},
  number = {11},
  pages = {e227},
  volume = {5},
  year = {2008},
  month = {Nov},
  language = {eng},
  keywords = {Humans, Survival Analysis, Animals, Drug Therapy: Combination, Plasmodium falciparum, Clinical Trials: Phase III as Topic, Treatment Outcome, Malaria: Falciparum, Antimalarials, Recurrence},
  date-added = {2010-02-23 08:35:37 +0100},
  date-modified = {2010-07-29 19:43:47 +0200},
  doi = {10.1371/journal.pmed.0050227},
  pii = {07-PLME-PF-0212},
  pmid = {19018658},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Borrmann-2008-PLoS%20Med_Revisiting%20the%20desig.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6471},
  rating = {0}
}
@article{Eggen:1998aa,
  author = {T J H M Eggen},
  title = {On the Loss of Information in Conditional Maximum Likelihood Estimation of Item Parameters},
  abstract = {In item response models of the Rasch type (Fischer {\&} Molenaar, 1995), item parameters are often estimated by the conditional maximum likelihood (CML) method. This paper addresses the loss of information in CML estimation by using the information concept of F-information (Liang, 1983). This concept makes it possible to specify the conditions for no loss of information and to define a quantification of information loss. For the dichotomous Rasch model, the derivations will be given in detail to show the use of the F-information concept for making efficiency comparisons for different estimation methods. It is shown that by using CML for item parameter estimation, some information is almost always lost. But compared to JML (joint maximum likelihood) as well as to MML (marginal maximum likelihood) the loss is very small. The reported efficiency of CML to JML and to MML in several comparisons is always larger than 93%, and in tests with a length of 20 items or more, larger than 99%.},
  year = {1998},
  month = {Sep},
  date-added = {2010-01-03 19:39:02 +0100},
  date-modified = {2010-01-03 19:39:03 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Eggen-1998-_On%20the%20Loss%20of%20Infor.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1224},
  rating = {0}
}
@article{Griffiths:2006p8373,
  author = {Kathleen M Griffiths and Yoshibumi Nakane and Helen Christensen and Kumiko Yoshioka and Anthony F Jorm and Hideyuki Nakane},
  journal = {BMC Psychiatry},
  title = {Stigma in response to mental disorders: a comparison of Australia and Japan},
  abstract = {BACKGROUND: There are few national or cross-cultural studies of the stigma associated with mental disorders. Australia and Japan have different systems of psychiatric health care, and distinct differences in cultural values, but enjoy similar standards of living. This study seeks to compare the nature and extent of stigma among the public in the two countries. METHODS: A household survey of the public was conducted in each country using similar methodologies. The Australian study comprised a national survey of 3998 adults aged over 18 years. The Japanese survey involved 2000 adults aged 20 to 69 from 25 regional sites distributed across the country. Interviewees reported their personal attitudes (personal stigma, social distance) and perceptions of the attitudes of others (perceived stigma, perceived discrimination) in the community with respect to four case vignettes. These vignettes described a person with: depression; depression with suicidal ideation; early schizophrenia; and chronic schizophrenia. RESULTS: Personal stigma and social distance were typically greater among the Japanese than the Australian public whereas the reverse was true with respect to the perception of the attitudes and discriminatory behaviour of others. In both countries, personal stigma was significantly greater than perceived stigma. The public in both countries showed evidence of greater social distance, greater personal stigma and greater perceived stigma for schizophrenia (particularly in its chronic form) than for depression. There was little evidence of a difference in stigma for depression with and without suicide for either country. However, social distance was greater for chronic compared to early schizophrenia for the Australian public. CONCLUSION: Stigmatising attitudes were common in both countries, but negative attitudes were greater among the Japanese than the Australian public. The results suggest that there is a need to implement national public awareness interventions tailored to the needs of each country. The current results provide a baseline for future tracking of national stigma levels in each country.},
  affiliation = {Centre for Mental Health Research, The Australian National University, Canberra, ACT, 0200, Australia. kathy.griffiths@anu.edu.au},
  pages = {21},
  volume = {6},
  year = {2006},
  month = {Jan},
  language = {eng},
  keywords = {Male, Mental Disorders, Middle Aged, Australia, Cross-Cultural Comparison, Aged, Female, Data Collection, Humans, Public Opinion, Prejudice, Social Conditions, Adult, Japan},
  date-added = {2010-03-21 13:05:04 +0100},
  date-modified = {2010-03-21 13:05:04 +0100},
  doi = {10.1186/1471-244X-6-21},
  pii = {1471-244X-6-21},
  pmid = {16716231},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Griffiths-2006-BMC%20Psychiatry_Stigma%20in%20response%20t.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8373},
  rating = {0}
}
@article{AgasiIdenburg:2010p7357,
  author = {Carla Agasi-Idenburg and Miranda Velthuis and Harriet Wittink},
  journal = {Journal of Clinical Epidemiology},
  title = {Quality criteria and user-friendliness in self-reported questionnaires on cancer-related fatigue: a review},
  abstract = {OBJECTIVE: Cancer-related fatigue (CRF) is a distressing, persistent, subjective sense of tiredness or exhaustion that occurs in 70-100% of cancer patients. The purpose of this review was to provide an overview of the quality of research performed on existing CRF self-report questionnaires and compare their reported psychometric properties and user-friendliness. METHODS: Database searches of CINAHL, Cochrane Library, EMBASE, MEDLINE, Scopus, PEDro, and PsycINFO were undertaken to find published scales. Standardized criteria were used to assess quality and user-friendliness. RESULTS: Thirty-five articles were included that described 18 questionnaires-seven one-dimensional questionnaires and 11 multidimensional questionnaires. The mean item count was 20.8 (range: 3-83). The mean overall score of the one-dimensional questionnaires was 10.4 of a maximum of 18 points (range: 7.6-14.3). The mean overall score of the multidimensional questionnaires was 9.4 of a maximum of 18 points (range: 4.3-14.4). CONCLUSION: Recommendations were made for the selection of a scale. We argue in favor of repeatedly reassessing psychometric properties of even established questionnaires to ensure they comply with evermore increasing stringent quality criteria.},
  affiliation = {Department of Physiotherapy, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands; University of Applied Sciences, Utrecht, The Netherlands.},
  pages = {},
  year = {2010},
  month = {Feb},
  language = {ENG},
  date-added = {2010-03-10 20:28:07 +0100},
  date-modified = {2010-03-10 20:28:07 +0100},
  doi = {10.1016/j.jclinepi.2009.08.027},
  pii = {S0895-4356(09)00313-8},
  pmid = {20172691},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Agasi-Idenburg-2010-Journal%20of%20Clinical%20Epidemiology_Quality%20criteria%20and-1.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7357},
  rating = {0}
}
@article{GonzalezSaiz:2009p12788,
  author = {Francisco Gonz{\'a}lez-Saiz and Oscar Lozano Rojas and Ioseba Iraurgi Castillo},
  journal = {Curr Drug Abuse Rev},
  title = {Measuring the impact of psychoactive substance on health-related quality of life: an update},
  abstract = {BACKGROUND: The number of publications dealing with measurement of the quality of life and health in the area of drug dependence has increased in recent years. Its main application is as an indicator of the effectiveness of intervention in harm reduction, although there are also comparative and methodological studies. DATA SOURCES AND STUDY SELECTION: The literature was reviewed to identify studies on abuse or substance dependence and HRQoL. The bibliographic sources used for the review are PubMed, EMBASE, CINAHL and PsycInfo. Additional articles were identified from references to relevant articles. RESULTS: 111 articles were identified. The HRQoL of people who abuse or are dependent on substances is lower than the general population. The presence of physical and psychiatric comorbidity also affects patients dependent on opiates, and substitution programs improve HRQoL. CONCLUSION: The measurement of HRQoL in the area of drug dependence is a suitable complement for finding out the deterioration caused by substance use, abuse or dependence. It is also a useful indicator for evaluating therapeutic results in this population.},
  affiliation = {Fundaci{\'o}n Andaluza para Atenci{\'o}n e Incorporaci{\'o}n Social, Junta de Andaluc{\'\i}a, Sevilla, EU, Spain. pacogonzalez@comcadiz.com},
  number = {1},
  pages = {5--10},
  volume = {2},
  year = {2009},
  month = {Jan},
  language = {eng},
  keywords = {Humans, Harm Reduction, Diagnosis: Dual (Psychiatry), Substance-Related Disorders, Quality of Life, Opioid-Related Disorders},
  date-added = {2010-06-18 21:02:13 +0200},
  date-modified = {2010-06-18 21:02:13 +0200},
  pmid = {19630733},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Gonz%C3%A1lez-Saiz-2009-Curr%20Drug%20Abuse%20Rev_Measuring%20the%20impact.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12788},
  rating = {0}
}
@phdthesis{Hamon:2000,
  author = {Agn{\`e}s Hamon},
  journal = {PhD Thesis},
  title = {Mod{\`e}le de Rasch et validation de questionnaires de qualit{\'e} de vie},
  affiliation = {Universit{\'e} de Bretagne Sud},
  year = {2000},
  date-added = {2010-01-10 11:33:22 +0100},
  date-modified = {2010-01-10 11:33:25 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Hamon-2000-PhD%20Thesis_Mod%C3%A8le%20de%20Rasch%20et%20v.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1865},
  rating = {0}
}
@article{Ligtvoet:2010p13812,
  author = {R Ligtvoet and L Andries van der Ark and J M te Marvelde and K Sijtsma},
  journal = {Educational and Psychological Measurement},
  title = {Investigating an Invariant Item Ordering for Polytomously Scored Items},
  abstract = {This article discusses the concept of an invariant item ordering (IIO) for polytom- ously scored items and proposes methods for investigating an IIO in real test data. Method manifest IIO is proposed for assessing whether item response functions intersect. Coefficient HT is defined for polytomously scored items. Given that an IIO holds, coefficient HT expresses the accuracy of the item ordering. Method manifest IIO and coefficient HT are used together to analyze a real data set. Topics for future research are discussed.},
  year = {2010},
  date-added = {2010-07-29 12:35:57 +0200},
  date-modified = {2010-07-29 20:42:55 +0200},
  doi = {10.1177/0013164409355697},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Ligtvoet-2010-Educational%20and%20Psychological%20Measurement_Investigating%20an%20Inv.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13812},
  rating = {0}
}
@article{Foltz:1998,
  author = {Peter W Foltz and Walter Kintsch and Thomas K Landauer},
  journal = {Discourse Processes},
  title = {The measurement of textual coherence with latent semantic analysis},
  number = {2\{\&}3},
  pages = {285--307},
  volume = {25},
  year = {1998},
  date-added = {2010-01-10 11:33:24 +0100},
  date-modified = {2010-07-29 19:25:23 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Foltz-1998-Discourse%20Processes_The%20measurement%20of%20t.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2201},
  rating = {0}
}
@article{Cheung:2006p11616,
  author = {V Cheung and I Givoni and D Dueck and B J Frey},
  title = {Factorgrams: A tool for visualizing multi-way associations in biological data},
  abstract = {Effective visualization of biological data is often critical for subsequent analy- sis. The popular clustergram/dendrogram visualization rearranges rows and columns of a data matrix so as to highlight clusters of similar responses, but assumes each row or column belongs to only one cluster and cannot associate each row or column with multiple clusters. Such multi-way associations oc- cur frequently, e.g., when a gene plays multiple biological roles. We describe the 'factorgram' visualization, which rearranges the data into an expanded view, associating each row (or column) with multiple clusters of rows (or columns) and elucidating potentially new biological relationships. Factor- grams for mouse gene expression and yeast synthetic-lethal gene-interaction datasets detect a larger number of statistically-significant clusters than clus- tergrams, plus a larger number of clusters enriched for gene ontology annota- tions. Experimentally-verified associations previously identified by manual rearrangement of rows and columns not grouped together by clustergrams, are readily identified by the factorgram.},
  year = {2006},
  date-added = {2010-05-11 21:45:42 +0200},
  date-modified = {2010-05-11 21:46:35 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Cheung-2006-_Factorgrams%20A%20tool.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11616},
  rating = {0}
}
@article{Ponce:2009p2490,
  author = {Guillermo Ponce and Roc{\'\i}o P{\'e}rez-Gonz{\'a}lez and Mar{\'\i}a Arag{\"u}{\'e}s and Tom{\'a}s Palomo and Roberto Rodr{\'\i}guez-Jim{\'e}nez and Miguel Angel Jim{\'e}nez-Arriero and Janet Hoenicka},
  journal = {Neurotox Res},
  title = {The ANKK1 kinase gene and psychiatric disorders},
  abstract = {The TaqIA single nucleotide polymorphism (SNP, rs1800497), which is located in the gene that codes for the putative kinase ANKK1 (ANKK1) near the termination codon of the D2 dopamine receptor gene (DRD2; chromosome 11q22-q23), is the most studied genetic variation in a broad range of psychiatric disorders and personality traits. A large number of individual genetic association studies have found that the TaqIA SNP is linked to alcoholism and antisocial traits. In addition, it has also been related to other conditions such as schizophrenia, eating disorders, and some behavioral childhood disorders. The TaqIA A1 allele is mainly associated with addictions, antisocial disorders, eating disorders, and attention-deficit/hyperactivity disorders, while the A2 allele occurs more frequently in schizophrenic and obsessive-compulsive patients. Current data show that the TaqIA polymorphism may be a marker of both DRD2 and ANKK1 genetic variants. ANKK1 would belong to a family of kinases involved in signal transduction. This raises the question of whether signaling players intervene in the pathophysiology of psychiatric disorders. Basic research on the ANKK1 protein and its putative interaction with the D2 dopamine receptor could shed light on this issue.},
  affiliation = {Unidad de Alcoholismo y Patolog{\'\i}a Dual, Servicio de Psiquiatr{\'\i}a, Hospital Universitario, 12 de Octubre, Av. de C{\'o}rdoba s/n, Madrid, E-28041, Spain.},
  number = {1},
  pages = {50--9},
  volume = {16},
  year = {2009},
  month = {Jul},
  language = {eng},
  date-added = {2010-01-12 13:33:10 +0100},
  date-modified = {2010-01-13 10:06:59 +0100},
  doi = {10.1007/s12640-009-9046-9},
  pmid = {19526298},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Ponce-2009-Neurotox%20Res_The%20ANKK1%20kinase%20gen.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2490},
  rating = {3}
}
@article{Quene:2008p3544,
  author = {H Quen{\'e} and H van den Bergh},
  title = {Examples of mixed-effects modeling with crossed random effects and with binomial data},
  abstract = {Psycholinguistic data are often analyzed with repeated-measures analyses of variance (ANOVA), but this paper argues that mixed-effects (multilevel) models provide a better alternative method. First, models are discussed in which the two random factors of participants and items are crossed, and not nested. Traditional ANOVAs are compared against these crossed mixed-effects models, for simulated and real data. Results indicate that the mixed-effects method has a lower risk of capitalization on chance (Type I error). Second, mixed-effects models of logistic regression (generalized linear mixed models, GLMM) are discussed and demonstrated with simulated binomial data. Mixed-effects models effectively solve the ``language-as-fixed-effect-fallacy'', and have several other advantages. In conclusion, mixed-effects models provide a superior method for analyzing psycholinguistic data.},
  year = {2008},
  date-added = {2010-01-15 20:57:13 +0100},
  date-modified = {2010-01-15 20:58:01 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Quen%C3%A9-2008-_Examples%20of%20mixed-ef.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3544},
  rating = {0}
}
@article{Houseman:2006p10006,
  author = {E Andr{\'e}s Houseman and Brent A Coull and Rebecca A Betensky},
  journal = {Biometrics},
  title = {Feature-specific penalized latent class analysis for genomic data},
  abstract = {Genomic data are often characterized by a moderate to large number of categorical variables observed for relatively few subjects. Some of the variables may be missing or noninformative. An example of such data is loss of heterozygosity (LOH), a dichotomous variable, observed on a moderate number of genetic markers. We first consider a latent class model where, conditional on unobserved membership in one of k classes, the variables are independent with probabilities determined by a regression model of low dimension q. Using a family of penalties including the ridge and LASSO, we extend this model to address higher-dimensional problems. Finally, we present an orthogonal map that transforms marker space to a space of "features" for which the constrained model has better predictive power. We demonstrate these methods on LOH data collected at 19 markers from 93 brain tumor patients. For this data set, the existing unpenalized latent class methodology does not produce estimates. Additionally, we show that posterior classes obtained from this method are associated with survival for these patients.},
  affiliation = {Department of Biostatistics, Harvard School of Public Health, 655 Huntington Avenue, Boston, Massachusetts 02115, USA. ahousema@hsph.harvard.edu},
  number = {4},
  pages = {1062--70},
  volume = {62},
  year = {2006},
  month = {Dec},
  language = {eng},
  keywords = {Loss of Heterozygosity, Genes: Tumor Suppressor, Brain Neoplasms, Genetic Markers, Genomics, Likelihood Functions, Humans, Biometry, Models: Statistical, Data Interpretation: Statistical},
  date-added = {2010-03-31 19:48:28 +0200},
  date-modified = {2010-03-31 19:48:34 +0200},
  doi = {10.1111/j.1541-0420.2006.00566.x},
  pii = {BIOM566},
  pmid = {17156280},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Houseman-2006-Biometrics_Feature-specific%20pen.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p10006},
  rating = {4}
}
@article{Miettunen:2008p4368,
  author = {Jouko Miettunen and Erika Lauronen and Liisa Kantoj{\"a}rvi and Juha Veijola and Matti Joukamaa},
  journal = {Psychiatry Res},
  title = {Inter-correlations between Cloninger's temperament dimensions-- a meta-analysis},
  abstract = {The Temperament and Character Inventory (TCI) was developed to measure the following temperament dimensions: novelty seeking (NS), harm avoidance (HA), reward dependence (RD) and persistence (P). These four dimensions of temperament were originally proposed to be independent of one another. In this study the inter-relationships between the dimensions were studied with meta-analytic techniques. We also studied the effects of sociodemographic factors (location of the study, mean age and gender distribution) on correlations between temperament dimensions. We searched studies on healthy (non-clinical) populations that used the TCI (version 9), and that had a required sample size of at least 100. The search resulted in 16 articles. The resulted pooled correlation coefficient was medium level between NS and HA (-0.27). Correlations were small for HA-P (-0.20), NS-P (-0.14), NS-RD (0.10), RD-P (0.05) and HA-RD (0.04). In meta-regression, the correlation NS-P was significantly affected by the location of the study (Asian/other) and by the gender distribution of the sample. In the HA-P correlation, the mean age of the sample affected the correlation. In conclusion, we found a medium level negative correlation between NS and HA; other correlations between the dimensions were small. These findings mainly support Cloninger's theory of independent dimensions.},
  affiliation = {Department of Psychiatry, Oulu University and Oulu University Hospital, PO Box 5000, Oulu, Finland. jouko.miettunen@oulu.fi},
  number = {1},
  pages = {106--14},
  volume = {160},
  year = {2008},
  month = {Jul},
  language = {eng},
  keywords = {Sex Distribution, Age Distribution, Sample Size, Aged, Female, Adult, Male, Character, Continental Population Groups, Research Design, Aged: 80 and over, Diagnostic and Statistical Manual of Mental Disorders, Middle Aged, Cross-Cultural Comparison, Temperament, Adolescent, Control Groups, Humans, Psychometrics, Personality Inventory, Reproducibility of Results, Personality Assessment},
  date-added = {2010-01-28 16:30:42 +0100},
  date-modified = {2010-01-28 16:30:42 +0100},
  doi = {10.1016/j.psychres.2007.05.003},
  pii = {S0165-1781(07)00150-3},
  pmid = {18513802},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Miettunen-2008-Psychiatry%20Res_Inter-correlations%20b.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4368},
  rating = {0}
}
@article{Zee:1998p5984,
  author = {B C Zee},
  journal = {Stat Med},
  title = {Growth curve model analysis for quality of life data},
  abstract = {There is increasing interest in measuring health related quality of life in cancer clinical trials. Most quality of life data are measured repeatedly over a fixed time schedule to capture changes and to reflect relative advantages of study treatments. A multivariate repeated measures model is usually used to analyse this type of data. However, one of the difficulties of this analysis is that quality of life may be affected by the occurrence of some critical events experienced by patients. We may separate a patient's lifetime during study into different 'health states'. The duration of these health states may vary among patients, and may relate to the efficacy of the study treatment. In some cases quality of life data may be missing due to one of the many different types of missing data mechanisms specific for a health state. It is reasonable to assume that the missing data mechanism for a treatment arm is homogeneous within a defined health state, and to control for the potential confounding effect to appropriately assess the impact of treatment on the quality of life. In this paper, we propose a growth curve model conditional on a time-dependent variable of defined health states in order to assess the overall treatment effect while taking into account occurrences of missing data and measurements from irregular visits. A specific contrast can be drawn within the overall model for testing a specific hypothesis without relying on the analysis of subgroups of patients based on a smaller number of repeated measurements. Quality of life data from a recently completed small-cell lung cancer randomized trial are used to illustrate this method.},
  affiliation = {National Cancer Institute of Canada Clinical Trials Group, Queen's University, Kingston, Ontario. zeeb@ncic.ctg.queensu.ca},
  number = {5-7},
  pages = {757--66},
  volume = {17},
  year = {1998},
  month = {Jan},
  language = {eng},
  keywords = {Clinical Trials as Topic, Antineoplastic Combined Chemotherapy Protocols, Humans, Longitudinal Studies, Models: Statistical, Lung Neoplasms, Quality of Life, Carcinoma: Small Cell, Health Status, Neoplasms, Research Design},
  date-added = {2010-02-18 23:30:36 +0100},
  date-modified = {2010-02-18 23:30:36 +0100},
  pii = {10.1002/(SICI)1097-0258(19980315/15)17:5/7<757::AID-SIM819>3.0.CO;2-N},
  pmid = {9549821},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5984},
  rating = {0}
}
@article{Suarez-Falcon:2003,
  author = {J C Suarez-Falcon and C A W Glas},
  journal = {British Journal of Mathematical {\&} Statistical Psychology},
  title = {Evaluation of Global Testing Procedures for item fit to the Rasch Model},
  abstract = {Two types of global testing procedures for item fit to the Rasch model were evaluated using simulation studies. The first type incorporates three tests based on first-order statistics: van den Wollenberg's Q(1) test, Glas's R(1) test, and Andersen's LR test. The second type incorporates three tests based on second-order statistics: van den Wollenberg's Q(2) test, Glas's R(2) test, and a non-parametric test proposed by Ponocny. The Type I error rates and the power against the violation of parallel item response curves, unidimensionality and local independence were analysed in relation to sample size and test length. In general, the outcomes indicate a satisfactory performance of all tests, except the Q(2) test which exhibits an inflated Type I error rate. Further, it was found that both types of tests have power against all three types of model violation. A possible explanation is the interdependencies among the assumptions underlying the model.},
  pages = {127--143},
  volume = {56},
  year = {2003},
  date-added = {2010-01-10 11:33:18 +0100},
  date-modified = {2010-07-29 19:22:13 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Suarez-Falcon-2003-British%20Journal%20of%20Mathematical%20&%20Statistical%20Psychology_Evaluation%20of%20Global.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1881},
  rating = {0}
}
@article{Simeoni:2007p6628,
  author = {Marie-Claude Simeoni and Silke Schmidt and Holger Muehlan and David Debensason and Monika Bullinger and DISABKIDS Group},
  journal = {Qual Life Res},
  title = {Field testing of a European quality of life instrument for children and adolescents with chronic conditions: the 37-item DISABKIDS Chronic Generic Module},
  abstract = {OBJECTIVES: The aim of this study was to shorten the Health-Related Quality of Life (HRQL) DISABKIDS Chronic Generic Measure (DCGM) for children and adolescents and to test its reliability, construct, and external validity. STUDY DESIGN: 1153 children and adolescents (8-16 years) with chronic health conditions (asthma, arthritis, epilepsy, cerebral palsy, diabetes, atopic dermatitis, cystic fibrosis) and their family were recruited from different paediatric clinical settings in seven European countries. A two-time assessment comprised reports on sociodemographics, health status and HRQL of children/adolescents. RESULTS: The 37-item DCGM describes six dimensions (Independence, Physical Limitation, Emotion, Social Inclusion, Social Exclusion and Treatment) confirmed by Confirmatory Factor Analysis, multi-item scaling and item-goodness of fit to Rasch model. Internal consistency (Cronbach's alpha: 0.70-0.87) and test-retest reliability (ICC: 0.71-0.83) were satisfactory. Correlations between DCGM-37 and other HRQL instruments were the highest between dimensions evaluating similar concepts. Regarding discriminant validity of the DCGM-37, girls and older adolescents reported lower emotional we ll-being. Children belonging to families with low level of affluence and those with severe health conditions were found to have worse HRQL in all domains. CONCLUSION: Reliability, construct validity as well as convergent and discriminant validity of the DCGM-37 were shown.},
  affiliation = {Public Health Department, University Hospital of Marseille, Marseille, France. marie-claude.simeoni@medecine.univ-mrs.fr},
  number = {5},
  pages = {881--93},
  volume = {16},
  year = {2007},
  month = {Jun},
  language = {eng},
  keywords = {Questionnaires, Female, Culture, Europe, Demography, Adolescent, Male, Chronic Disease, Psychometrics, Sickness Impact Profile, Humans, Quality of Life, Child},
  date-added = {2010-03-03 20:34:08 +0100},
  date-modified = {2010-07-29 19:48:29 +0200},
  doi = {10.1007/s11136-007-9188-2},
  pmid = {17404899},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Simeoni-2007-Qual%20Life%20Res_Field%20testing%20of%20a%20E.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6628},
  rating = {0}
}
@article{Bertschy:2010p7837,
  author = {G Bertschy and E Haffen and N Gervasoni and M Gex-Fabry and C Osiek and D Marra and J-M Aubry and G Bondolfi},
  journal = {Eur Psychiatry},
  title = {Self-rated residual symptoms do not predict 1-year recurrence of depression},
  abstract = {BACKGROUND: Residual depressive symptoms are generally documented as a risk factor for recurrence. In the absence of a specific instrument for the assessment of residual symptoms, a new 25-item Depression Residual Symptom Scale (DRSS) was elaborated and tested for recurrence prediction over a 1-year follow-up. SAMPLING AND METHODS: Fifty-nine patients in remission after a major depressive episode (MDE) were recruited in two centres. They were assessed with the DRSS and the Montgomery-Asberg Depression Rating Scale (MADRS) at inclusion and followed for 1 year according to a seminaturalistic design. The DRSS included specific depressive symptoms and subjective symptoms of vulnerability, lack of return to usual self and premorbid level of functioning. RESULTS: Severity of residual symptoms was not significantly associated with increased risk of recurrence. However, DRSS score was significantly higher among patients with three or more episodes than one to two episodes. Number of previous episodes and treatment interruption were not identified as significant predictors of recurrence. CONCLUSION: The proposed instrument is not predictive of depressive recurrence, but is sensitive to increased perception of vulnerability associated with consecutive episodes. Limitations include small sample size, seminaturalistic design (no standardisation of treatment) and content of the instrument.},
  affiliation = {Division of adult psychiatry, Department of psychiatry, University Hospitals of Geneva, 2, chemin du Petit-Bel-Air, 1225 Ch{\^e}ne-Bourg, Geneva, Switzerland. gilles.bertschy@hcuge.ch},
  number = {1},
  pages = {52--7},
  volume = {25},
  year = {2010},
  month = {Jan},
  language = {eng},
  date-added = {2010-03-17 21:01:55 +0100},
  date-modified = {2010-03-17 21:01:58 +0100},
  doi = {10.1016/j.eurpsy.2009.05.009},
  pii = {S0924-9338(09)00116-3},
  pmid = {19695844},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Bertschy-2010-Eur%20Psychiatry_Self-rated%20residual.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7837},
  rating = {3}
}
@article{Ohaeri:2007p8392,
  author = {Jude U Ohaeri and Abdel W Awadalla and Abdul-Hamid M El-Abassi and Anila Jacob},
  journal = {BMC Med Res Methodol},
  title = {Confirmatory factor analytical study of the WHOQOL-Bref: experience with Sudanese general population and psychiatric samples},
  abstract = {BACKGROUND: The widespread international use of the 26-item WHO Quality of Life Instrument (WHOQOL-Bref) necessitates the assessment of its factor structure across cultures. For, alternative factor models may provide a better explanation of the data than the WHO 4- and 6-domain models. The objectives of the study were: to assess the factor structure of the WHOQOL-Bref in a Sudanese general population sample; and use confirmatory factor analysis (CFA) and path analysis (PA) to see how well the model thus generated fits into the WHOQOL-Bref data of Sudanese psychiatric patients and their family caregivers. METHOD: In exploratory factor analysis (FA) with all items, data from 623 general population subjects were used to generate a 5-domain model. In CFA and PA, the model was tested on the data of 300 psychiatric outpatients and their caregivers, using four goodness of fit (GOF) criteria in Analysis of Moment Structures (AMOS). In the path relationships for our model, the dependent variable was the item on overall QOL (OQOL). For the WHO 6-domain model, the general facet on health and QOL was the dependent variable. RESULTS: Two of the five factors ("personal relations" and "environment") from our FA were similar to the WHO's. In CFA, the four GOF criteria were met by our 5-domain model and WHO's 4-domain model on the psychiatric data. In PA, these two models met the GOF criteria on the general population data. The direct predictors of OQOL were our factors: "life satisfaction" and "sense of enjoyment". For the general facet, predictors were WHO domains: "environment", "physical health" and "independence'. CONCLUSION: The findings support the credentials of WHO's 4-domain model as a universal QOL construct; and the impression that analysis of WHOQOL-Bref could benefit from including all the items in FA and using OQOL as a dependent variable. The clinical significance is that by more of such studies, a combination of domains from the WHO models and the local models would be generated and used to develop rigorous definitions of QOL, from which primary targets for subjective QOL interventions could be delineated that would have cross-cultural relevance.},
  affiliation = {Department of Psychiatry, Psychological Medicine Hospital, Gamal Abdul Naser Road, Safat, Kuwait. judeohaeri@hotmail.com},
  pages = {37},
  volume = {7},
  year = {2007},
  month = {Jan},
  language = {eng},
  keywords = {World Health Organization, Cross-Cultural Comparison, Humans, Questionnaires, Sudan, Interpersonal Relations, Quality of Life, Happiness, Social Environment, Female, Caregivers, Psychometrics, Adult, Personal Satisfaction, Mental Disorders, Activities of Daily Living, Middle Aged, Culture, Factor Analysis: Statistical, Male},
  date-added = {2010-03-21 13:08:56 +0100},
  date-modified = {2010-04-25 21:32:11 +0200},
  doi = {10.1186/1471-2288-7-37},
  pii = {1471-2288-7-37},
  pmid = {17678527},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Ohaeri-2007-BMC%20Med%20Res%20Methodol_Confirmatory%20factor.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8392},
  rating = {4}
}
@article{Preston:2000p13747,
  author = {C C Preston and A M Colman},
  journal = {Acta Psychol (Amst)},
  title = {Optimal number of response categories in rating scales: reliability, validity, discriminating power, and respondent preferences},
  abstract = {Using a self-administered questionnaire, 149 respondents rated service elements associated with a recently visited store or restaurant on scales that differed only in the number of response categories (ranging from 2 to 11) and on a 101-point scale presented in a different format. On several indices of reliability, validity, and discriminating power, the two-point, three-point, and four-point scales performed relatively poorly, and indices were significantly higher for scales with more response categories, up to about 7. Internal consistency did not differ significantly between scales, but test-retest reliability tended to decrease for scales with more than 10 response categories. Respondent preferences were highest for the 10-point scale, closely followed by the seven-point and nine-point scales. Implications for research and practice are discussed.},
  affiliation = {Department of General Practice and Primary Health Care, University of Leicester, UK.},
  number = {1},
  pages = {1--15},
  volume = {104},
  year = {2000},
  month = {Mar},
  language = {eng},
  keywords = {Questionnaires, Adult, Reproducibility of Results, Adolescent, Psychological Tests, Humans, Observer Variation, Female, Male, Psychometrics},
  date-added = {2010-07-24 12:34:06 +0200},
  date-modified = {2010-07-24 12:34:19 +0200},
  pii = {S0001-6918(99)00050-5},
  pmid = {10769936},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Preston-2000-Acta%20Psychol%20(Amst)_Optimal%20number%20of%20re.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13747},
  rating = {4}
}
@article{Miglioretti:2004,
  author = {D L Miglioretti and P J Heagerty},
  journal = {Biostatistics},
  title = {Marginal modeling of multilevel binary data with time varying covariates},
  number = {3},
  pages = {381--398},
  volume = {5},
  year = {2004},
  date-added = {2010-01-03 19:37:35 +0100},
  date-modified = {2010-01-03 19:37:35 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Miglioretti-2004-Biostatistics_Marginal%20modeling%20of.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1120},
  rating = {0}
}
@inproceedings{Camiz:2005,
  author = {S Camiz and J Pag{\`e}s},
  journal = {Proceedings},
  title = {Application de l'analyse factorielle multiple pour le traitement de caract{\`e}res en {\'e}chelle dans les enqu{\^e}tes},
  year = {2005},
  date-added = {2010-01-10 11:33:20 +0100},
  date-modified = {2010-01-10 11:33:25 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Camiz-2005-Proceedings_Application%20de%20l'ana.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1917},
  rating = {0}
}
@article{Borsboom:2002p5475,
  author = {D Borsboom and Gideon J Mellenbergh and van Heerden J},
  journal = {Applied Psychological Measurement},
  title = {Different Kinds of DIF: A Distinction Between Absolute and Relative Forms of Measurement Invariance and Bias},
  abstract = {In this article, a distinction is made between absolute and relative measurement. Absolute measurement refers to the measurement of traits on a group-invariant scale, and relative measurement refers to the within-group measurement of traits, where the scale of measurement is expressed in terms of the within-group position on a trait. Relative measurement occurs, for example, if an item induces a within-group comparison in respondents. These distinctions are discussed within the framework of measurement invariance, differentiating between absolute and relative forms of measurement invariance and bias. It is shown that items for relative measurement will produce bias as classically defined
if the mean and/or variance of the trait distribution differ between groups. This form of bias, however, does not result from multidimensionality but from the fact that measurement is on a relative scale. A logistic regression procedure for the detection of relative measurement invariance and bias is proposed, as well as a model that allows for the incorporation of items for relative measurement in test analysis. Implications of the distinction between absolute and relative measurement are discussed and prove to be especially relevant for the domain of personality research.},
  affiliation = {Department of Psychological Methods, University of Amsterdam},
  number = {4},
  pages = {433--450},
  volume = {26},
  year = {2002},
  date-added = {2010-02-12 14:17:58 +0100},
  date-modified = {2010-02-12 14:24:48 +0100},
  doi = {10.1177/014662102237798},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Borsboom-2002-Applied%20Psychological%20Measurement_Different%20Kinds%20of%20D.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5475},
  rating = {0}
}
@article{Ono:1999p12130,
  author = {Y Ono and K Yoshimura and H Mizushima and H Manki and G Yagi and S Kanba and J Nathan and M Asai},
  journal = {Psychol Rep},
  title = {Environmental and possible genetic contributions to character dimensions of personality},
  abstract = {The relationship between dimensions of personality characteristics and the perceived rearing attitude of parents in the Japanese population were investigated. The scores on a measure of perceived parental attitude of 153 normal female students, measured on the Parker Parental Bonding Instrument, were correlated with personality features from the Japanese version of the Cloninger Temperament and Character Inventory. Self-directedness, especially the subclasses of Responsibility vs Blaming and Congruent Second Nature vs Incongruent Habits, was significantly related to high scores on Maternal Care and low scores on Maternal Overprotection. The subscale of Self-acceptance vs Self-striving correlated only with low scores on Maternal Overprotection. Paternal Care was only related to the total scale scores on Self-directedness. Results suggest that some personality traits may be related to the perceived attitudes of parents, especially of the mother, during childhood.},
  affiliation = {Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan.},
  number = {2},
  pages = {689--96},
  volume = {84},
  year = {1999},
  month = {Apr},
  language = {eng},
  keywords = {Adolescent, Environment, Parenting, Personality Development, Adult, Genetics, Female, Japan, Personality Inventory, Humans, Character},
  date-added = {2010-05-30 10:18:31 +0200},
  date-modified = {2010-05-30 10:18:31 +0200},
  pmid = {10335084},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12130},
  rating = {0}
}
@article{Gold:1991p5170,
  author = {K F Gold and B O Muth{\'e}n},
  journal = {American Educational Research Association Meeting},
  title = {Extensions of covariance structure analysis: Hierarchical modeling of multidimensional achievement data},
  year = {1991},
  date-added = {2010-02-07 12:35:31 +0100},
  date-modified = {2010-07-29 19:13:13 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Gold-1991-American%20Educational%20Research%20Association%20Meeting_Extensions%20of%20covari.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5170},
  rating = {0}
}
@misc{Zhang:1996,
  author = {J Zhang and D D Boos},
  journal = {Miscellaneous},
  title = {Generalized Cochran-Mantel-Haenszel Test Statistics for Correlated Categorical Data},
  year = {1996},
  date-added = {2010-01-10 11:33:09 +0100},
  date-modified = {2010-01-10 11:33:25 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Zhang-1996-Miscellaneous_Generalized%20Cochran.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1873},
  rating = {0}
}
@article{Faraone:1994p6674,
  author = {S V Faraone and M T Tsuang},
  journal = {Am J Psychiatry},
  title = {Measuring diagnostic accuracy in the absence of a "gold standard"},
  abstract = {OBJECTIVE: As the nation debates issues of national health care reform, psychiatrists seek equal status with other medical colleagues. To defend psychiatry in the national arena, the accuracy of psychiatric diagnoses must be measured. Indexes of accuracy such as sensitivity and specificity provide valuable information, yet they are rarely computed because there is no "gold standard" with which to compare them. The goal of this article is to show how this problem can be overcome and to encourage nosologists to use accuracy statistics in assessing the adequacy of psychiatric diagnoses. METHOD: The authors reviewed the literature on medical decision making to find methodological approaches to assessing diagnostic accuracy in the absence of gold standards. RESULTS: A lack of such standards is not unique to psychiatry and has been addressed with a variety of novel analytic procedures. Although these methods differ in many respects, each recognizes that the conventional 2 x 2 table of interrater agreement does not provide enough data for estimating diagnostic accuracy. After defining the data needed, each method provides a mathematical model that estimates accuracy statistics and the prevalence of a disorder. Most of these methods are variants of latent class analysis. The authors reanalyzed data from one of the reviewed papers to show that similar inferences about accuracy of diagnoses could be drawn from a conventional latent class analysis. CONCLUSIONS: There are potential pitfalls in using latent structure methods, but their cautious use would provide valuable information for psychiatric nosology. These methods supplement, but do not replace, data about outcome, family history, laboratory studies, and other validating criteria in making accurate diagnoses.},
  affiliation = {Harvard Institute of Psychiatric Epidemiology and Genetics, Department of Psychiatry, Harvard Medical School, Massachusetts Mental Health Center, Boston.},
  number = {5},
  pages = {650--7},
  volume = {151},
  year = {1994},
  month = {May},
  language = {eng},
  keywords = {Male, Female, Reproducibility of Results, ROC Curve, Humans, Mental Disorders, Sex Factors, Prevalence, Sensitivity and Specificity},
  date-added = {2010-03-05 22:07:51 +0100},
  date-modified = {2010-07-29 19:51:28 +0200},
  pmid = {8166304},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6674},
  rating = {0}
}
@article{Zhu:2006p8396,
  author = {Bin Zhu and Stephen D Walter and Peter L Rosenbaum and Dianne J Russell and Parminder Raina},
  journal = {BMC Med Res Methodol},
  title = {Structural equation and log-linear modeling: a comparison of methods in the analysis of a study on caregivers' health},
  abstract = {BACKGROUND: In this paper we compare the results in an analysis of determinants of caregivers' health derived from two approaches, a structural equation model and a log-linear model, using the same data set. METHODS: The data were collected from a cross-sectional population-based sample of 468 families in Ontario, Canada who had a child with cerebral palsy (CP). The self-completed questionnaires and the home-based interviews used in this study included scales reflecting socio-economic status, child and caregiver characteristics, and the physical and psychological well-being of the caregivers. Both analytic models were used to evaluate the relationships between child behaviour, caregiving demands, coping factors, and the well-being of primary caregivers of children with CP. RESULTS: The results were compared, together with an assessment of the positive and negative aspects of each approach, including their practical and conceptual implications. CONCLUSION: No important differences were found in the substantive conclusions of the two analyses. The broad confirmation of the Structural Equation Modeling (SEM) results by the Log-linear Modeling (LLM) provided some reassurance that the SEM had been adequately specified, and that it broadly fitted the data.},
  affiliation = {Centre for Clinical Epidemiology and Community Studies, Sir Mortimer B, Davis-Jewish General Hospital, Montreal, Quebec, Canada. bzhu@epid.jgh.mcgill.ca},
  pages = {49},
  volume = {6},
  year = {2006},
  month = {Jan},
  language = {eng},
  keywords = {Linear Models, Male, Ontario, Cross-Sectional Studies, Disabled Children, Female, Social Support, Questionnaires, Health Status, Child, Cerebral Palsy, Humans, Self Concept, Logistic Models, Family, Socioeconomic Factors, Caregivers, Adaptation: Psychological, Adult},
  date-added = {2010-03-21 13:35:23 +0100},
  date-modified = {2010-03-21 13:35:23 +0100},
  doi = {10.1186/1471-2288-6-49},
  pii = {1471-2288-6-49},
  pmid = {17038188},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Zhu-2006-BMC%20Med%20Res%20Methodol_Structural%20equation.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8396},
  rating = {0}
}
@article{Glas:1988a,
  author = {C A W Glas},
  journal = {Journal of Educational Statistics},
  title = {The Rasch model and multi-stage testing},
  pages = {45--52},
  volume = {13},
  year = {1988},
  date-added = {2010-01-10 11:33:18 +0100},
  date-modified = {2010-07-29 19:33:53 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Glas-1988-Journal%20of%20Educational%20Statistics_The%20Rasch%20model%20and.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2138},
  rating = {0}
}
@article{Cavallo:2009p6601,
  author = {Sabrina Cavallo and Debbie Ehrmann Feldman and Bonnie Swaine and Garbis Meshefedjian and Peter N Malleson and Ciar{\'a}n M Duffy},
  journal = {Pediatric rheumatology online journal},
  title = {Is parental coping associated with quality of life in juvenile idiopathic arthritis?},
  abstract = {ABSTRACT: Parents of children with a chronic condition such as juvenile arthritis must cope with greater demands than those living with a healthy child. They must adopt different behaviours in order to lessen the impact on the family structure. Parental coping refers to the parent's specific cognitive and behavioural efforts to reduce or manage a demand on the family system. The aims of this study were: to describe coping in a cohort of parents of children with JIA; to determine whether quality of life is associated with parental coping; to explore whether socio-demographic factors such as child's age, family socioeconomic status and family structure are associated with parental coping. One hundred eighty-two parents caring for a child with JIA completed a postal survey at three times over a one-year period, which included the Juvenile Arthritis Quality of Life Questionnaire (JAQQ), the Coping Health Inventory for Parents (CHIP) and questionnaires describing socio-demographic characteristics. Linear mixed models were employed to analyse the association between the child's quality of life and parental coping. Mean total QoL scores (JAQQ) showed that children experienced difficulty in completing specified activities at most just below 25% of the time and results fall off slightly following the 6 month time point. Mean parental coping scores for the CHIP subscales at baseline were 38.4 +/- 9.0, 33.4 +/- 11.6, 16.5 +/- 6.1, for Maintaining Family Integration (maximum score 57), Maintaining Social Support (maximum score 54) and Understanding the Medical Situation (maximum score 24), respectively. Understanding the Medical Situation was deemed most useful. The child's QoL was associated with parental coping. Parents of children with greater psychosocial dysfunction used more coping behaviours related to Understanding the Medical Situation (beta coefficient, 0.73; 95% CI, 0.01, 1.45). These findings underscore the importance of helping parents of children with JIA better understand their child's medical situation.},
  affiliation = {Ecole de R{\'e}adaptation, Facult{\'e} de M{\'e}decine, Universit{\'e} de Montr{\'e}al, the Montreal Children's Hospital, Groupe de Recherche Interdisciplinaire en Sant{\'e} and the Public Health Department, Montreal, Quebec, Canada. debbie.feldman@umontreal.ca.},
  pages = {7},
  volume = {7},
  year = {2009},
  month = {Jan},
  language = {eng},
  date-added = {2010-03-03 19:41:38 +0100},
  date-modified = {2010-03-03 19:41:38 +0100},
  doi = {10.1186/1546-0096-7-7},
  pii = {1546-0096-7-7},
  pmid = {19284585},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Cavallo-2009-Pediatric%20rheumatology%20online%20journal_Is%20parental%20coping%20a.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6601},
  rating = {0}
}
@article{Zong:2010p13750,
  author = {Ji-Gang Zong and Xiao-Yan Cao and Yuan Cao and Yan-Fang Shi and Yu-Na Wang and Chao Yan and John Rz Abela and Yi-Qun Gan and Qi-Yong Gong and Raymond Ck Chan},
  journal = {Health Qual Life Outcomes},
  title = {Coping flexibility in college students with depressive symptoms},
  abstract = {ABSTRACT: BACKGROUND: The current study explored the prevalence of depressed mood among Chinese undergraduate students and examined the coping patterns and degree of flexibility of flexibility of such patterns associated with such mood. METHODS: A set of questionnaire assessing coping patterns, coping flexibility, and depressive symptoms were administered to 428 students (234 men and 194 women). RESULTS: A total of 266 participants both completed the entire set of questionnaires and reported a frequency of two or more stressful life events (the criterion needed to calculate variance in perceived controllability). Findings showed that higher levels of depressive symptoms were significantly associated with higher levels of both event frequency (r = .368, p < .001) and event impact (r = .245, p < .001) and lower levels of perceived controllability (r = -.261, p < .001), coping effectiveness (r = -.375, p < .001), and ratio of strategy to situation fit (r = -.108, p < .05). Depressive symptoms were not significantly associated with cognitive flexibility (variance of perceived controllability; r = .031, p = .527), Gender was not a significant moderator of any of the reported associations. CONCLUSIONS: Findings indicate that Chinese university students with depressive symptoms reported experiencing a greater number of negative events than did non-depressed university students. In addition, undergraduates with depressive symptoms were more likely than other undergraduates to utilize maladaptive coping methods. Such findings highlight the potential importance of interventions aimed at helping undergraduate students with a lower coping flexibility develop skills to cope with stressful life events.},
  number = {1},
  pages = {66},
  volume = {8},
  year = {2010},
  month = {Jul},
  language = {ENG},
  date-added = {2010-07-24 12:42:20 +0200},
  date-modified = {2010-07-24 12:42:21 +0200},
  doi = {10.1186/1477-7525-8-66},
  pii = {1477-7525-8-66},
  pmid = {20626865},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Zong-2010-Health%20and%20Quality%20of%20Life%20Outcomes_Coping%20flexibility%20i-1.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13750},
  rating = {0}
}
@article{Holte:1993p2806,
  author = {R C Holte},
  journal = {Machine Learning},
  title = {Very Simple Classification Rules Perform Well
on Most Commonly Used Datasets},
  pages = {63--91},
  volume = {11},
  year = {1993},
  date-added = {2010-01-13 14:50:43 +0100},
  date-modified = {2010-01-13 14:51:26 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Holte-1993-Machine%20Learning_Very%20Simple%20Classifi.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2806},
  rating = {0}
}
@article{Levy:2009p14059,
  author = {Yonata Levy and Richard P Ebstein},
  journal = {J Child Psychol Psychiatry},
  title = {Research review: crossing syndrome boundaries in the search for brain endophenotypes},
  abstract = {The inherent imprecision of behavioral phenotyping is the single most important factor contributing to the failure to discover the biological factors that are involved in psychiatric and neurodevelopmental disorders (e.g., Bearden {\&} Freimer, 2006). In this review article we argue that in addition to an appreciation of the inherent complexity at the biological level, a rather urgent task facing behavioral scientists involves a reconsideration of the role that clinical syndromes play in psychological theorizing, as well as in research into the biological basis of cognition and personality. Syndrome heterogeneity, cross-syndrome similarities and syndrome comorbidities question the relevance of syndromes to biological research. It is suggested that the search for brain endophenotypes, intermediate between genes and behavior, should be based on cross-syndrome, trait classification. Cohort selection should rest on behavioral homogeneity, enabling, when necessary, syndrome heterogeneity.},
  affiliation = {Psychology Department, Hebrew University, Jerusalem, Israel. msyonata@huji.ac.il},
  number = {6},
  pages = {657--68},
  volume = {50},
  year = {2009},
  month = {Jun},
  language = {eng},
  keywords = {Personality Disorders, Comorbidity, Syndrome, Genotype, Cognition Disorders, Developmental Disabilities, Child, Autistic Disorder, Brain, Attention Deficit Disorder with Hyperactivity, Phenotype, Humans, Language Disorders},
  date-added = {2010-08-18 10:08:21 +0200},
  date-modified = {2010-08-18 10:08:21 +0200},
  doi = {10.1111/j.1469-7610.2008.01986.x},
  pii = {JCPP1986},
  pmid = {19175806},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Levy-2009-J%20Child%20Psychol%20Psychiatry_Research%20review%20cro.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p14059},
  rating = {0}
}
@article{Wu:2009p1485,
  author = {Zhijin Wu},
  journal = {Stat Methods Med Res},
  title = {A review of statistical methods for preprocessing oligonucleotide microarrays},
  abstract = {Microarrays have become an indispensable tool in biomedical research. This powerful technology not only makes it possible to quantify a large number of nucleic acid molecules simultaneously, but also produces data with many sources of noise. A number of preprocessing steps are therefore necessary to convert the raw data, usually in the form of hybridisation images, to measures of biological meaning that can be used in further statistical analysis. Preprocessing of oligonucleotide arrays includes image processing, background adjustment, data normalisation/transformation and sometimes summarisation when multiple probes are used to target one genomic unit. In this article, we review the issues encountered in each preprocessing step and introduce the statistical models and methods in preprocessing.},
  affiliation = {Center for Statistical Sciences and Department of Community Health, Brown University, RI 02912, USA. zhijin_wu@brown.edu},
  number = {6},
  pages = {533--41},
  volume = {18},
  year = {2009},
  month = {Dec},
  language = {eng},
  date-added = {2010-01-07 12:25:42 +0100},
  date-modified = {2010-01-07 12:25:42 +0100},
  doi = {10.1177/0962280209351924},
  pii = {18/6/533},
  pmid = {20048383},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Wu-2009-Stat%20Methods%20Med%20Res_A%20review%20of%20statisti.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1485},
  rating = {0}
}
@article{Yuan:2009p7376,
  author = {Yuhong Yuan and Richard H Hunt},
  journal = {Am J Gastroenterol},
  title = {Systematic reviews: the good, the bad, and the ugly},
  abstract = {Systematic reviews systematically evaluate and summarize current knowledge and have many advantages over narrative reviews. Meta-analyses provide a more reliable and enhanced precision of effect estimate than do individual studies. Systematic reviews are invaluable for defining the methods used in subsequent studies, but, as retrospective research projects, they are subject to bias. Rigorous research methods are essential, and the quality depends on the extent to which scientific review methods are used. Systematic reviews can be misleading, unhelpful, or even harmful when data are inappropriately handled; meta-analyses can be misused when the difference between a patient seen in the clinic and those included in the meta-analysis is not considered. Furthermore, systematic reviews cannot answer all clinically relevant questions, and their conclusions may be difficult to incorporate into practice. They should be reviewed on an ongoing basis. As clinicians, we need proper methodological training to perform good systematic reviews and must ask the appropriate questions before we can properly interpret such a review and apply its conclusions to our patients. This paper aims to assist in the reading of a systematic review.},
  affiliation = {Division of Gastroenterology, Department of Medicine, McMaster University Health Science Centre, Hamilton, Ontario, Canada.},
  number = {5},
  pages = {1086--92},
  volume = {104},
  year = {2009},
  month = {May},
  language = {eng},
  keywords = {Review Literature as Topic, Research Design, Randomized Controlled Trials as Topic, Gastroenterology, Reproducibility of Results, Female, Humans, Bias (Epidemiology), Male, Sensitivity and Specificity, Evidence-Based Medicine, Meta-Analysis as Topic},
  date-added = {2010-03-10 20:34:32 +0100},
  date-modified = {2010-03-10 20:34:32 +0100},
  doi = {10.1038/ajg.2009.118},
  pii = {ajg2009118},
  pmid = {19417748},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7376},
  rating = {0}
}
@article{Ziegenhagen:2007p10908,
  author = {U Ziegenhagen},
  journal = {The PracTEX Journal},
  title = {LATEX Document Management with Subversion},
  abstract = {From the single-author composition of a Bachelor thesis to the creation of a book by a team there are many occasions, where version management of a document may be helpful. With the aim of overcoming the shortcomings of CVS (Concurrent Version System) the Subversion version control system was implemented.
In this article I will describe the Subversion setup on Windows and Linux systems, the elementary steps of document management and various LATEX packages working hand in hand with Subversion.},
  volume = {3},
  year = {2007},
  date-added = {2010-04-11 21:27:03 +0200},
  date-modified = {2010-07-29 19:52:56 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Ziegenhagen-2007-The%20PracTEX%20Journal_LATEX%20Document%20Manag.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p10908},
  rating = {0}
}
@article{Janes:2008p5209,
  author = {Holly Janes and Margaret S Pepe},
  journal = {Am J Epidemiol},
  title = {Adjusting for covariates in studies of diagnostic, screening, or prognostic markers: an old concept in a new setting},
  abstract = {The concept of covariate adjustment is well established in therapeutic and etiologic studies. However, it has received little attention in the growing area of medical research devoted to the development of markers for disease diagnosis, screening, or prognosis, where classification accuracy, rather than association, is of primary interest. In this paper, the authors demonstrate the need for covariate adjustment in studies of classification accuracy, discuss methods for adjusting for covariates, and distinguish covariate adjustment from several other related, but fundamentally different, uses for covariates. They draw analogies and contrasts throughout with studies of association.},
  affiliation = {Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA. hjanes@scharp.org},
  number = {1},
  pages = {89--97},
  volume = {168},
  year = {2008},
  month = {Jul},
  language = {eng},
  keywords = {Tumor Markers: Biological, Randomized Controlled Trials as Topic, Prostatic Neoplasms, Humans, Sensitivity and Specificity, Prostate-Specific Antigen, Epidemiologic Methods, ROC Curve, Middle Aged, Aged, Male},
  date-added = {2010-02-08 19:26:23 +0100},
  date-modified = {2010-02-08 19:26:23 +0100},
  doi = {10.1093/aje/kwn099},
  pii = {kwn099},
  pmid = {18477651},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Janes-2008-Am%20J%20Epidemiol_Adjusting%20for%20covari.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5209},
  rating = {0}
}
@article{Yuan:2009p12319,
  author = {X Yuan},
  journal = {20th International Symposium of Mathematical Program- ming},
  title = {Alternating direction methods for sparse covariance selection},
  abstract = {The mathematical model of the widely-used sparse covariance selection problem (SCSP) is an NP-hard combinatorial problem, whereas it can be well approximately by a convex relaxation problem whose maximum likelihood estimation is penalized by the L1 norm. This convex relaxation problem, however, is still numerically challenging, especially for large-scale cases. Recently, some efficient first-order methods inspired by Nesterov's work have been proposed to solve the convex relaxation problem of SCSP. This paper is to apply the well-known alternating direction method (ADM), which is also a first-order method, to solve the convex relaxation of SCSP. Due to the full exploitation to the separable structure of a simple reformulation of the convex relaxation problem, the ADM approach is very efficient for solving large-scale SCSP. Our preliminary numerical results show that the ADM approach substantially outperforms existing first-order methods for SCSP.},
  year = {2009},
  date-added = {2010-06-12 09:37:43 +0200},
  date-modified = {2010-06-12 09:38:27 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Yuan-2009-20th%20International%20Symposium%20of%20Mathematical%20Program-%20ming_Alternating%20directio.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12319},
  rating = {0}
}
@article{Stephenson:2006p5654,
  author = {Michael T Stephenson and R Lance Holbert and Rick S Zimmerman},
  journal = {Health Commun},
  title = {On the use of structural equation modeling in health communication research},
  abstract = {Structural equation modeling (SEM) is a multivariate technique suited for testing proposed relations between variables. In this article, the authors discuss the potential for SEM as a tool to advance health communication research both statistically and conceptually. Specifically, the authors discuss the advantages that latent variable modeling in SEM affords researchers by extracting measurement error. In addition, they argue that SEM is useful in understanding communication as a complex set of relations between variables. Moreover, the authors articulate the possibility for examining communication as an agent, mediator, and an outcome. Finally, they review the application of SEM to recursive models, interactions, and confirmatory factor analysis.},
  affiliation = {Department of Communication, Texas A{\&}M University, College Station, 77843-4234, USA. mstephenson@tamu.edu},
  number = {2},
  pages = {159--67},
  volume = {20},
  year = {2006},
  month = {Jan},
  language = {eng},
  keywords = {Research Design, Humans, Factor Analysis: Statistical, Models: Statistical, Health Education, Communication},
  date-added = {2010-02-12 20:20:16 +0100},
  date-modified = {2010-02-12 20:20:17 +0100},
  doi = {10.1207/s15327027hc2002_7},
  pmid = {16965253},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Stephenson-2006-Health%20Commun_On%20the%20use%20of%20struct.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5654},
  rating = {0}
}
@article{Biau:2008p13231,
  author = {G Biau and L Devroye and G Lugosi},
  journal = {Journal of Machine Learning},
  title = {Consistency of Random Forests and Other Averaging Classifiers},
  abstract = {In the last years of his life, Leo Breiman promoted random forests for use in classification. He suggested using averaging as a means of obtaining good discrimination rules. The base classifiers used for averaging are simple and randomized, often based on random samples from the data. He left a few questions unanswered regarding the consistency of such rules. In this paper, we give a number of theorems that establish the universal consistency of averaging rules. We also show that some popular classifiers, including one suggested by Breiman, are not universally consistent.},
  pages = {2015--2033},
  volume = {9},
  year = {2008},
  date-added = {2010-07-01 17:26:53 +0200},
  date-modified = {2010-07-29 19:34:45 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Biau-2008-Journal%20of%20Machine%20Learning_Consistency%20of%20Rando.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13231},
  rating = {0}
}
@article{Randi:2010p6031,
  author = {Judi Randi and Tina Newman and Elena L Grigorenko},
  journal = {J Autism Dev Disord},
  title = {Teaching Children with Autism to Read for Meaning: Challenges and Possibilities},
  abstract = {The purpose of this literature review is to examine what makes reading for understanding especially challenging for children on the autism spectrum, most of whom are skilled at decoding and less skilled at comprehension. This paper first summarizes the research on reading comprehension with a focus on the cognitive skills and processes that are involved in gaining meaning from text and then reviews studies of reading comprehension deficits in children on the spectrum. The paper concludes with a review of reading comprehension interventions for children on the spectrum. These children can especially benefit from interventions addressing particular cognitive processes, such as locating antecedent events, generating and answering questions, locating referents, and rereading to repair understanding.},
  affiliation = {University of New Haven, West Haven, CT, USA.},
  pages = {},
  year = {2010},
  month = {Jan},
  language = {ENG},
  date-added = {2010-02-19 17:00:11 +0100},
  date-modified = {2010-02-19 17:00:11 +0100},
  doi = {10.1007/s10803-010-0938-6},
  pmid = {20101452},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6031},
  rating = {0}
}
@article{Michaelides:2008p3062,
  author = {M P Michaelides},
  journal = {Practical Assessment Research \{\&} Evaluation},
  title = {An Illustration of a Mantel-Haenszel Procedure to Flag Misbehaving Common Items in Test Equating},
  abstract = {In this study the Mantel-Haenszel procedure, widely used in studies for identifying differential item functioning, is proposed as an alternative to the delta-plot method and applied in a test-equating context for flagging common items that behave differentially across cohorts of examinees. The Mantel-Haenszel procedure has the advantage of conditioning on ability when making comparisons of performance of two examinee groups on an item. There are schemes for interpreting the effect size of differential performance, which can inform the decision as to whether to retain those items in the common-item pool, or to discard them. Data from a statewide assessment are analyzed to illustrate the use of this procedure. Advantages of this methodology are discussed and limitations regarding test design that may make its application difficult are described.},
  number = {7},
  volume = {13},
  year = {2008},
  date-added = {2010-01-14 11:28:22 +0100},
  date-modified = {2010-07-29 19:44:42 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Michaelides-2008-Practical%20Assessment%20Research%20%20&%20Evaluation_An%20Illustration%20of%20a.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3062},
  rating = {0}
}
@article{Odent:2010p7675,
  author = {Michel Odent},
  journal = {Med Hypotheses},
  title = {Attention deficit hyperactivity disorder (ADHD) and obesity: two facets of the same disease?},
  abstract = {We hypothesize that when two pathological conditions or personality traits share the same critical period for gene-environment interaction, we should expect further similarities, particularly from clinical and pathophysiological perspectives. They should therefore be considered as two facets of the same disease. To test this hypothesis we compiled data included in the Primal Health Research Database. This database (www.primalhealthresearch.com) is specialised in studies exploring correlations between what happens during the 'primal period' (fetal life, perinatal period and year following birth) and what happens later on in life in terms of health and personality traits. After mentioning the links between autism and anorexia nervosa, we explore more in depth the links between attention deficit hyperactivity disorder (ADHD) and obesity. We suggest from such examples that the nature of an environmental factor is often less important than the timing of the interaction. We conclude that the concept of gene expression, combined with Primal Health Research, might lead to reconsider conventional nosological classifications. Some previously well-defined pathological entities should be included into the framework of multifaceted diseases. On the other hand some existing pathological entities should be dismantled.},
  affiliation = {Primal Health Research Centre, 72 Savernake Road, London NW3 2JR, UK. modent@aol.com},
  number = {1},
  pages = {139--41},
  volume = {74},
  year = {2010},
  month = {Jan},
  language = {eng},
  date-added = {2010-03-15 23:48:13 +0100},
  date-modified = {2010-03-15 23:48:13 +0100},
  doi = {10.1016/j.mehy.2009.07.020},
  pii = {S0306-9877(09)00510-6},
  pmid = {19665851},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7675},
  rating = {0}
}
@article{Dowell:2010p11483,
  author = {Robin D Dowell and Owen Ryan and An Jansen and Doris Cheung and Sudeep Agarwala and Timothy Danford and Douglas A Bernstein and P Alexander Rolfe and Lawrence E Heisler and Brian Chin and Corey Nislow and Guri Giaever and Patrick C Phillips and Gerald R Fink and David K Gifford and Charles Boone},
  journal = {Science},
  title = {Genotype to phenotype: a complex problem},
  abstract = {We generated a high-resolution whole-genome sequence and individually deleted 5100 genes in Sigma1278b, a Saccharomyces cerevisiae strain closely related to reference strain S288c. Similar to the variation between human individuals, Sigma1278b and S288c average 3.2 single-nucleotide polymorphisms per kilobase. A genome-wide comparison of deletion mutant phenotypes identified a subset of genes that were conditionally essential by strain, including 44 essential genes unique to Sigma1278b and 13 unique to S288c. Genetic analysis indicates the conditional phenotype was most often governed by complex genetic interactions, depending on multiple background-specific modifiers. Our comprehensive analysis suggests that the presence of a complex set of modifiers will often underlie the phenotypic differences between individuals.},
  affiliation = {Computer Science and Artificial Intelligence Laboratory, Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology (MIT), Cambridge, MA 02139, USA.},
  number = {5977},
  pages = {469},
  volume = {328},
  year = {2010},
  month = {Apr},
  language = {eng},
  date-added = {2010-05-01 17:27:19 +0200},
  date-modified = {2010-07-29 19:50:10 +0200},
  doi = {10.1126/science.1189015},
  pii = {328/5977/469},
  pmid = {20413493},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Dowell-2010-Science_Genotype%20to%20phenotyp.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11483},
  rating = {0}
}
@article{Haley:2006p7365,
  author = {Stephen M Haley and Pengsheng Ni and Ronald K Hambleton and Mary D Slavin and Alan M Jette},
  journal = {Journal of Clinical Epidemiology},
  title = {Computer adaptive testing improved accuracy and precision of scores over random item selection in a physical functioning item bank},
  abstract = {BACKGROUND AND OBJECTIVE: Measuring physical functioning (PF) within and across postacute settings is critical for monitoring outcomes of rehabilitation; however, most current instruments lack sufficient breadth and feasibility for widespread use. Computer adaptive testing (CAT), in which item selection is tailored to the individual patient, holds promise for reducing response burden, yet maintaining measurement precision. We calibrated a PF item bank via item response theory (IRT), administered items with a post hoc CAT design, and determined whether CAT would improve accuracy and precision of score estimates over random item selection. METHODS: 1,041 adults were interviewed during postacute care rehabilitation episodes in either hospital or community settings. Responses for 124 PF items were calibrated using IRT methods to create a PF item bank. We examined the accuracy and precision of CAT-based scores compared to a random selection of items. RESULTS: CAT-based scores had higher correlations with the IRT-criterion scores, especially with short tests, and resulted in narrower confidence intervals than scores based on a random selection of items; gains, as expected, were especially large for low and high performing adults. CONCLUSION: The CAT design may have important precision and efficiency advantages for point-of-care functional assessment in rehabilitation practice settings.},
  affiliation = {Department of Rehabilitation Sciences, Sargent College of Health and Rehabilitation Sciences, Boston University, 635 Commanwealth Ave, Boston, MA 02215, USA. smhaley@bu.edu},
  number = {11},
  pages = {1174--82},
  volume = {59},
  year = {2006},
  month = {Nov},
  language = {eng},
  keywords = {Aged: 80 and over, Confidence Intervals, Reproducibility of Results, Activities of Daily Living, Software, Female, Adult, Humans, Recovery of Function, Adolescent, Male, Rehabilitation, Factor Analysis: Statistical, Aged, Middle Aged, Outcome Assessment (Health Care)},
  date-added = {2010-03-10 20:30:58 +0100},
  date-modified = {2010-03-10 20:30:58 +0100},
  doi = {10.1016/j.jclinepi.2006.02.010},
  pii = {S0895-4356(06)00112-0},
  pmid = {17027428},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Haley-2006-Journal%20of%20Clinical%20Epidemiology_Computer%20adaptive%20te.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7365},
  rating = {0}
}
@article{Yao:2008p13193,
  author = {Jianchao Yao and Chunqi Chang and Mari L Salmi and Yeung Sam Hung and Ann Loraine and Stanley J Roux},
  journal = {BMC Bioinformatics},
  title = {Genome-scale cluster analysis of replicated microarrays using shrinkage correlation coefficient},
  abstract = {BACKGROUND: Currently, clustering with some form of correlation coefficient as the gene similarity metric has become a popular method for profiling genomic data. The Pearson correlation coefficient and the standard deviation (SD)-weighted correlation coefficient are the two most widely-used correlations as the similarity metrics in clustering microarray data. However, these two correlations are not optimal for analyzing replicated microarray data generated by most laboratories. An effective correlation coefficient is needed to provide statistically sufficient analysis of replicated microarray data. RESULTS: In this study, we describe a novel correlation coefficient, shrinkage correlation coefficient (SCC), that fully exploits the similarity between the replicated microarray experimental samples. The methodology considers both the number of replicates and the variance within each experimental group in clustering expression data, and provides a robust statistical estimation of the error of replicated microarray data. The value of SCC is revealed by its comparison with two other correlation coefficients that are currently the most widely-used (Pearson correlation coefficient and SD-weighted correlation coefficient) using statistical measures on both synthetic expression data as well as real gene expression data from Saccharomyces cerevisiae. Two leading clustering methods, hierarchical and k-means clustering were applied for the comparison. The comparison indicated that using SCC achieves better clustering performance. Applying SCC-based hierarchical clustering to the replicated microarray data obtained from germinating spores of the fern Ceratopteris richardii, we discovered two clusters of genes with shared expression patterns during spore germination. Functional analysis suggested that some of the genetic mechanisms that control germination in such diverse plant lineages as mosses and angiosperms are also conserved among ferns. CONCLUSION: This study shows that SCC is an alternative to the Pearson correlation coefficient and the SD-weighted correlation coefficient, and is particularly useful for clustering replicated microarray data. This computational approach should be generally useful for proteomic data or other high-throughput analysis methodology.},
  affiliation = {Institute for Cellular and Molecular Biology and Department of Mathematics, University of Texas at Austin, Austin, Texas 78712, USA. jcyao@mail.utexas.edu},
  pages = {288},
  volume = {9},
  year = {2008},
  month = {Jan},
  language = {eng},
  keywords = {Genomics, Germination, Confidence Intervals, Probability, Computer Simulation, Pteridaceae, Oligonucleotide Array Sequence Analysis, Research Design, Saccharomyces cerevisiae, Cluster Analysis, Gene Expression, Computational Biology, Gene Expression Profiling, Artificial Intelligence},
  date-added = {2010-07-01 15:27:54 +0200},
  date-modified = {2010-07-01 15:27:54 +0200},
  doi = {10.1186/1471-2105-9-288},
  pii = {1471-2105-9-288},
  pmid = {18564431},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Yao-2008-BMC%20Bioinformatics_Genome-scale%20cluster.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13193},
  rating = {0}
}
@article{Balbi:2006p12033,
  author = {S Balbi and M Misuraca},
  journal = {8emes Journ{\'e}es internationales d'Analyse statistique des Donn{\'e}es Textuelles},
  title = {Rotated Canonical Correlation Analysis for Multilingual Corpora},
  abstract = {This paper aims at proposing the joint use of Canonical Correlation Analysis and Procrustes Rotations (RCA), when we deal with a text and its translation into another language. The basic idea is representing words in the two different natural languages on a common reference space. The main characteristic of this space is to be lan- guage independent, although Procrustes Rotation is performed transforming the lexical table derived from trans- lation by minimizing its distance from the lexical table belonging to the original corpus, while the subsequent Canonical Correlation Analysis treats symmetrically the two word sets. The most interesting RCA feature is building a unique reference space for representing the correlation structure in the data, inducing the two systems of canonical factors to lie on the same space. These graphical representations enables us to read distances be- tween corresponding points in terms of different way of translating the same word in relation with the general context defined by the canonical variates. Trying to understand the distances between matched points could rep- resent an useful tool for enriching lexical resources in a translation procedure. In this paper we propose the com- parison of the most frequent content bearing words in the two languages, analyzing one year (2003) of Le Monde Diplomatique and its Italian edition.},
  year = {2006},
  date-added = {2010-05-24 10:28:39 +0200},
  date-modified = {2010-05-24 10:29:21 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Balbi-2006-8emes%20Journe%CC%81es%20internationales%20d%E2%80%99Analyse%20statistique%20des%20Donne%CC%81es%20Textuelles_Rotated%20Canonical%20Co.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12033},
  rating = {0}
}
@article{Mathers:2004p13489,
  author = {William D Mathers and Dongseok Choi},
  journal = {Arch Ophthalmol},
  title = {Cluster analysis of patients with ocular surface disease, blepharitis, and dry eye},
  abstract = {OBJECTIVE: To develop a classification system for blepharitis and dry eye based on a classification-tree model of a large group of subjects who were given a variety of objective physiologic tests. METHODS: We evaluated 513 subjects, some healthy and some with blepharitis and dry eye,with tests for tear volume, tear flow, and tear turnover and the Schirmer test for dry eye. Meibomian gland function was evaluated by meibomian gland lipid expression for lipid volume and lipid viscosity, evaporation, and eyelid transillumination for meibomian gland drop out. We subjected these data to cluster analysis and formulated a classification tree. MAIN OUTCOME MEASURE: The outcome measure of this study was the statistically valid groups of subjects with and without ocular surface symptoms identified by their physiologic characteristics. RESULTS: Cluster analysis most successfully grouped subjects by initially dividing them into 2 groups based on the presence or absence of gland drop out and then by lipid viscosity and volume, Schirmer test results, and evaporation. The analysis created 9 categories. This division created an objective classification system that was found to have clinical relevance. Normal subjects were distributed across several groups. CONCLUSIONS: Using a classification tree, blepharitis and dry eye can be classified with objective physiologic tests into clinically relevant groups that have common characteristics. The analysis establishes the central role of meibomian gland dysfunction in blepharitis and demonstrates the diverse characteristics of the normal population.},
  affiliation = {Department of Ophthalmology, Casey Eye Institute, Oregon Health and Science University, Portland 97201, USA. mathersw@ohsu.edu},
  number = {11},
  pages = {1700--4},
  volume = {122},
  year = {2004},
  month = {Nov},
  language = {eng},
  keywords = {Meibomian Glands, Middle Aged, Humans, Fluorophotometry, Eyelid Diseases, Dry Eye Syndromes, Adult, Blepharitis, Osmolar Concentration, Decision Trees, Male, Tears, Female, Cluster Analysis},
  date-added = {2010-07-01 22:23:51 +0200},
  date-modified = {2010-07-01 22:23:51 +0200},
  doi = {10.1001/archopht.122.11.1700},
  pii = {122/11/1700},
  pmid = {15534133},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Mathers-2004-Arch%20Ophthalmol_Cluster%20analysis%20of.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13489},
  rating = {0}
}
@article{Thompson:2008p3528,
  author = {G L Thompson},
  journal = {Tutorial in Quantitative Methods for Psychology},
  title = {Eliminating Aggregation Bias in Experimental Research: Random Coefficient Analysis as an Alternative to Performing a `by‐subjects' and/or `by‐items' ANOVA},
  abstract = {Experimental psychologists routinely simplify the structure of their data by computing means for each experimental condition so that the basic assumptions of regression/ANOVA are satisfied. Typically, these means represent the performance (e.g. reaction time or RT) of a participant over several items that share some target characteristic (e.g. Mean RT for high‐frequency words). Regrettably, analyses based on such aggregated data are biased toward rejection of the null hypothesis, inflating Type‐I error beyond the nominal level. A preferable strategy for analyzing such data is random coefficient analysis (RCA), which can be performed using a simple method proposed by Lorch {\&} Myers (1990). An easy to use SPSS implementation of this method is presented using a concrete example. In addition, a technique for evaluating the magnitude of potential aggregation bias in a dataset is demonstrated. Finally, suggestions are offered concerning the reporting of RCA results in empirical articles.},
  number = {1},
  pages = {21--34},
  volume = {4},
  year = {2008},
  date-added = {2010-01-15 15:53:05 +0100},
  date-modified = {2010-07-29 19:54:44 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Thompson-2008-Tutorial%20in%20Quantitative%20Methods%20for%20Psychology_Eliminating%20Aggregat.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3528},
  rating = {0}
}
@article{Rinaldo:2010p12315,
  author = {A Rinaldo},
  title = {Properties and Refinements of The Fused Lasso},
  abstract = {We consider estimating an unknown signal, which is both blocky and sparse, corrupted by additive noise. We study three interrelated least squares procedures and their asymptotic properties. The first procedure is the fused lasso, put forward by Friedman et al. (2007), which we modify into a different estimator, called the fused adaptive lasso, with better properties. The other two estimators we discuss solve least squares problems on sieves, one constraining the maximal l1 norm and the maximal total variation seminorm, the other restricting the number of blocks and the number of of nonzero coordinates of the signal. We derive conditions for the recovery of the true block partition and the true sparsity patterns by the fused lasso and the fused adaptive lasso, and convergence rates for the sieve estimators, explicitly in terms of the constraining parameters.},
  date-added = {2010-06-12 09:34:21 +0200},
  date-modified = {2010-06-12 09:35:03 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Rinaldo--_Properties%20and%20Refin.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12315},
  rating = {0}
}
@article{Danoff:2006p4541,
  author = {Ann Danoff and Oona Khan and David W Wan and Lainie Hurst and Daniel Cohen and Craig T Tenner and Edmund J Bini},
  journal = {Am J Gastroenterol},
  title = {Sexual dysfunction is highly prevalent among men with chronic hepatitis C virus infection and negatively impacts health-related quality of life},
  abstract = {OBJECTIVES: Although sexual dysfunction has been reported in patients with hepatitis C virus (HCV) infection, little is known about this association. The aims of this study were to determine the prevalence of sexual dysfunction among men with chronic HCV infection and to evaluate the impact of sexual dysfunction on health-related quality of life (HRQOL). METHODS: We prospectively enrolled 112 HCV positive men and 239 HCV negative controls, and all patients completed validated questionnaires to assess sexual function (Brief Male Sexual Function Inventory [BMSFI]), depression (Beck Depression Inventory), and HRQOL (Medical Outcomes Study Short Form-36). The BMSFI assessed sexual drive, erection, ejaculation, sexual problem assessment, and overall sexual satisfaction. RESULTS: HCV positive men had significantly more sexual dysfunction than control subjects across all five domains of the BMFSI. In addition, HCV-infected men were significantly more likely than controls to not be sexually satisfied (53.6% vs 28.9%, p<0.001) and this remained statistically significant after adjusting for age, race, and other potential confounding variables (OR=3.36; 95% CI, 1.59-7.13). In the 241 individuals without depression, HCV positive men were significantly more likely to not be sexually satisfied as compared with control subjects (47.5% vs 11.0%, p<0.001). HCV-infected men who were not sexually satisfied scored significantly worse in six of eight domains of HRQOL as compared with HCV-infected men who were sexually satisfied. CONCLUSIONS: Sexual dysfunction is highly prevalent in men with chronic HCV infection, is independent of depression, and is associated with a marked reduction in HRQOL.},
  affiliation = {Division of Endocrinology, VA New York Harbor Healthcare System, and NYU School of Medicine, New York, New York 10010, USA.},
  number = {6},
  pages = {1235--43},
  volume = {101},
  year = {2006},
  month = {Jun},
  language = {eng},
  keywords = {Hepatitis C: Chronic, Male, Logistic Models, Prospective Studies, Sexual Dysfunction: Physiological, Questionnaires, Aged, Humans, Prevalence, Chi-Square Distribution, Depression, Sexual Dysfunctions: Psychological, Middle Aged, Quality of Life, Statistics: Nonparametric},
  date-added = {2010-01-29 22:29:45 +0100},
  date-modified = {2010-01-29 22:29:45 +0100},
  doi = {10.1111/j.1572-0241.2006.00544.x},
  pii = {AJG544},
  pmid = {16771944},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4541},
  rating = {0}
}
@article{Lenroot:2009p5757,
  author = {Rhoshel K Lenroot and James E Schmitt and Sarah J Ordaz and Gregory L Wallace and Michael C Neale and Jason P Lerch and Kenneth S Kendler and Alan C Evans and Jay N Giedd},
  journal = {Hum Brain Mapp},
  title = {Differences in genetic and environmental influences on the human cerebral cortex associated with development during childhood and adolescence},
  abstract = {In this report, we present the first regional quantitative analysis of age-related differences in the heritability of cortical thickness using anatomic MRI with a large pediatric sample of twins, twin siblings, and singletons (n = 600, mean age 11.1 years, range 5-19). Regions of primary sensory and motor cortex, which develop earlier, both phylogenetically and ontologically, show relatively greater genetic effects earlier in childhood. Later developing regions within the dorsal prefrontal cortex and temporal lobes conversely show increasingly prominent genetic effects with maturation. The observation that regions associated with complex cognitive processes such as language, tool use, and executive function are more heritable in adolescents than children is consistent with previous studies showing that IQ becomes increasingly heritable with maturity(Plomin et al. 1997: Psychol Sci 8:442-447). These results suggest that both the specific cortical region and the age of the population should be taken into account when using cortical thickness as an intermediate phenotype to link genes, environment, and behavior.},
  affiliation = {Child Psychiatry Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892-9692, USA. lenrootr@mail.nih.gov},
  number = {1},
  pages = {163--74},
  volume = {30},
  year = {2009},
  month = {Jan},
  language = {eng},
  keywords = {Cognition, Gene Expression Regulation: Developmental, Age Factors, Aging, Temporal Lobe, Female, Somatosensory Cortex, Intelligence, Humans, Magnetic Resonance Imaging, Child: Preschool, Prefrontal Cortex, Male, Young Adult, Child, Inheritance Patterns, Adolescent, Motor Cortex, Environment, Cerebral Cortex, Phenotype},
  date-added = {2010-02-15 20:29:49 +0100},
  date-modified = {2010-02-15 20:29:49 +0100},
  doi = {10.1002/hbm.20494},
  pmid = {18041741},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5757},
  rating = {0}
}
@article{Bechger:2001p14009,
  author = {Timo M Bechger and Wies Akkermans},
  journal = {Psychometrika},
  title = {A note on the equivalence of the graded response model and the sequential model},
  number = {3},
  pages = {461--464},
  volume = {66},
  year = {2001},
  date-added = {2010-08-04 09:34:29 +0200},
  date-modified = {2010-08-04 09:35:42 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Bechger-2001-Psychometrika_A%20note%20on%20the%20equiva.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p14009},
  rating = {0}
}
@article{Rueda:2008p2976,
  author = {O M Rueda and R Diaz-Uriarte},
  journal = {COBRA Preprint Series},
  title = {Finding Recurrent Regions of Copy Number Variation: A Review},
  abstract = {Copy number variation (CNV) in genomic DNA is linked to a variety of human diseases, and array-based CGH (aCGH) is currently the main technology to lo- cate CNVs. Although many methods have been developed to analyze aCGH from a single array/subject, disease-critical genes are more likely to be found in regions that are common or recurrent among subjects. Unfortunately, finding recurrent CNV regions remains a challenge. We review existing methods for the identifi- cation of recurrent CNV regions. The working definition of ``common'' or ``recurrent'' region differs between methods, leading to approaches that use different types of input (discretized output from a previous CGH segmentation analysis or intensity ratios), or that incorporate to varied degrees biological considerations (which play a role in the identification of ``interesting'' regions and in the details of null models used to assess statistical significance). Very few approaches use and/or return probabilities, and code is not easily available for several methods. We suggest that finding recurrent CNVs could benefit from reframing the problem in a biclustering context. We also emphasize that, when analyzing data from complex diseases with significant among-subject heterogeneity, methods should be able to identify CNVs that affect only a subset of subjects. We make some recommendations about choice among existing methods, and we suggest further methodological research.},
  number = {42},
  year = {2008},
  date-added = {2010-01-13 23:07:39 +0100},
  date-modified = {2010-01-13 23:08:40 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Rueda-2008-COBRA%20Preprint%20Series_Finding%20Recurrent%20Re.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2976},
  rating = {0}
}
@article{Stojanovski:2010p5657,
  author = {E Stojanovski and K Mengersen},
  title = {Bayesian Structural Equation Models: A Health Application},
  date-added = {2010-02-12 20:21:28 +0100},
  date-modified = {2010-06-24 12:35:44 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Stojanovski--_Bayesian%20Structural.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5657},
  read = {Yes},
  rating = {0}
}
@article{Williams:1994p6828,
  author = {L J Williams and P J Holahan},
  journal = {Structural Equation Modeling},
  title = {Parsimony-based fit indices for multiple-indicator models: Do they work?},
  number = {2},
  pages = {161--189},
  volume = {1},
  year = {1994},
  date-added = {2010-03-05 22:33:16 +0100},
  date-modified = {2010-07-29 19:51:13 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Williams-1994-Structural%20Equation%20Modeling_Parsimony-based%20fit.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6828},
  rating = {0}
}
@article{Reverter:1997p7855,
  author = {A Reverter and C J Kaiser},
  journal = {J Anim Sci},
  title = {The role of different pedigree structures on the sampling variance of heritability estimates},
  abstract = {A computer-intensive process was performed to simulate 12,600 data sets each with n = 5,000 individuals from distinct pedigree structures to assess the effect of pedigree information on the sampling variance of heritability (h2) estimates. Pedigree structures were determined by varying the proportion of foundation animals (PF), percentage replacement rates for males (RM) and females (RF), and ratio of females to male (F2M). A 2(3) factorial design was modeled; levels of RM and RF were 10 and 20%, and levels of F2M were 10 and 20. For each of the eight cells, 60 foundation animals were simulated, each with 10 replicates. The required mating seasons (MS) to obtain the number of individuals was simulated based on PF and F2M. A REML algorithm was used to estimate h2 and its associated SE. The effect of all factors was analyzed in a regression model with linear and quadratic components for PF. An alternative model with MS replacing PF was also investigated. There was a non-monotonic association (P < .01) between PF and h2 SE. The minimum h2 SE occurred when PF ranged from 20 to 40%. Here, the proportion of first-generation progeny was near its maximum with rapid increases in the proportion of subsequent descendants. Among the class effects, F2M yielded the highest mean square (P < .001). When considering more than one MS, h2 SE was positively associated (P < .01) with RF and F2M and negatively associated with RM. Results suggest that h2 is most accurately estimated when there is performance information on many animals closely related to foundation animals.},
  affiliation = {Animal Genetics and Breeding Unit, University of New England, Armidale, NSW, Australia.},
  number = {9},
  pages = {2355--61},
  volume = {75},
  year = {1997},
  month = {Sep},
  language = {eng},
  keywords = {Male, Seasons, Models: Genetic, Models: Statistical, Computer Simulation, Pedigree, Animals, Female, Genetic Variation, Algorithms, Breeding},
  date-added = {2010-03-17 21:02:20 +0100},
  date-modified = {2010-07-29 19:31:49 +0200},
  pmid = {9303453},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Reverter-1997-J%20Anim%20Sci_The%20role%20of%20differen.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7855},
  rating = {0}
}
@article{Taguchi:2005p885,
  author = {Y-H Taguchi and Y Oono},
  journal = {Bioinformatics},
  title = {Relational patterns of gene expression via non-metric multidimensional scaling analysis},
  abstract = {MOTIVATION: Microarray experiments result in large-scale data sets that require extensive mining and refining to extract useful information. We demonstrate the usefulness of (non-metric) multidimensional scaling (MDS) method in analyzing a large number of genes. Applying MDS to the microarray data is certainly not new, but the existing works are all on small numbers (< 100) of points to be analyzed. We have been developing an efficient novel algorithm for non-metric MDS (nMDS) analysis for very large data sets as a maximally unsupervised data mining device. We wish to demonstrate its usefulness in the context of bioinformatics (unraveling relational patterns among genes from time series data in this paper). RESULTS: The Pearson correlation coefficient with its sign flipped is used to measure the dissimilarity of the gene activities in transcriptional response of cell-cycle-synchronized human fibroblasts to serum. These dissimilarity data have been analyzed with our nMDS algorithm to produce an almost circular relational pattern of the genes. The obtained pattern expresses a temporal order in the data in this example; the temporal expression pattern of the genes rotates along this circular arrangement and is related to the cell cycle. For the data we analyze in this paper we observe the following. If an appropriate preparation procedure is applied to the original data set, linear methods such as the principal component analysis (PCA) could achieve reasonable results, but without data preprocessing linear methods such as PCA cannot achieve a useful picture. Furthermore, even with an appropriate data preprocessing, the outcomes of linear procedures are not as clear-cut as those by nMDS without preprocessing.},
  affiliation = {Department of Physics, Faculty of Science and Technology, Chuo University, 1-13-27 Kasuga, Tokyo 112-8551, Japan. tag@granular.com},
  number = {6},
  pages = {730--40},
  volume = {21},
  year = {2005},
  month = {Mar},
  language = {eng},
  keywords = {Numerical Analysis: Computer-Assisted, Humans, Models: Biological, Cells: Cultured, Fibroblasts, Gene Expression Profiling, Oligonucleotide Array Sequence Analysis, Transcription Factors, Models: Genetic, Signal Transduction, Models: Statistical, Gene Expression Regulation, Pattern Recognition: Automated, Algorithms},
  date-added = {2010-01-03 18:25:24 +0100},
  date-modified = {2010-01-03 18:25:24 +0100},
  doi = {10.1093/bioinformatics/bti067},
  pii = {bti067},
  pmid = {15509613},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Taguchi-2005-Bioinformatics_Relational%20patterns.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p885},
  rating = {0}
}
@article{Maxwell:2008p10044,
  author = {Scott E Maxwell and Ken Kelley and Joseph R Rausch},
  journal = {Annual Review of Psychology},
  title = {Sample size planning for statistical power and accuracy in parameter estimation},
  abstract = {This review examines recent advances in sample size planning, not only from the perspective of an individual researcher, but also with regard to the goal of developing cumulative knowledge. Psychologists have traditionally thought of sample size planning in terms of power analysis. Although we review recent advances in power analysis, our main focus is the desirability of achieving accurate parameter estimates, either instead of or in addition to obtaining sufficient power. Accuracy in parameter estimation (AIPE) has taken on increasing importance in light of recent emphasis on effect size estimation and formation of confidence intervals. The review provides an overview of the logic behind sample size planning for AIPE and summarizes recent advances in implementing this approach in designs commonly used in psychological research.},
  affiliation = {Department of Psychology, University of Notre Dame, Notre Dame, Indiana 46556, USA. smaxwell@nd.edu},
  pages = {537--63},
  volume = {59},
  year = {2008},
  month = {Jan},
  language = {eng},
  keywords = {Confidence Intervals, Sampling Studies, Linear Models, Psychology, Humans, Models: Psychological},
  date-added = {2010-03-31 20:15:36 +0200},
  date-modified = {2010-03-31 20:15:37 +0200},
  doi = {10.1146/annurev.psych.59.103006.093735},
  pmid = {17937603},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Maxwell-2008-Annual%20Review%20of%20Psychology_Sample%20size%20planning.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p10044},
  rating = {0}
}
@webpage{Thompson:1998a,
  author = {B Thompson},
  title = {Five methodology errors in educational research: The pantheon of statistical significance and other faux pas},
  year = {1998},
  month = {Apr},
  date-added = {2010-01-10 11:33:22 +0100},
  date-modified = {2010-01-10 11:33:25 +0100},
  url = {http://www.coe.tamu.edu/~bthompson/aeraaddr.htm},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1869},
  rating = {0}
}
@article{Ashton:2009p13931,
  author = {Michael C Ashton and Kibeom Lee and Lewis R Goldberg and Reinout E de Vries},
  journal = {Pers Soc Psychol Rev},
  title = {Higher order factors of personality: do they exist?},
  abstract = {Scales that measure the Big Five personality factors are often substantially intercorrelated. These correlations are sometimes interpreted as implying the existence of two higher order factors of personality. The authors show that correlations between measures of broad personality factors do not necessarily imply the existence of higher order factors and might instead be due to variables that represent same-signed blends of orthogonal factors. Therefore, the hypotheses of higher order factors and blended variables can only be tested with data on lower level personality variables that define the personality factors. The authors compared the higher order factor model and the blended variable model in three participant samples using the Big Five Aspect Scales, and found better fit for the latter model. In other analyses using the HEXACO Personality Inventory, they identified mutually uncorrelated markers of six personality factors. The authors conclude that correlations between personality factor scales can be explained without postulating any higher order dimensions of personality.},
  affiliation = {Department of Psychology, Brock University, St. Catharines, Ontario, Canada. mashton@ brocku.ca},
  number = {2},
  pages = {79--91},
  volume = {13},
  year = {2009},
  month = {May},
  language = {eng},
  keywords = {Humans, Factor Analysis: Statistical, Personality Inventory, Personality, Psychometrics, Personality Assessment, Questionnaires, Models: Statistical, Statistics as Topic, Models: Psychological},
  date-added = {2010-07-29 18:58:45 +0200},
  date-modified = {2010-07-29 18:58:48 +0200},
  doi = {10.1177/1088868309338467},
  pii = {1088868309338467},
  pmid = {19458345},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Ashton-2009-Pers%20Soc%20Psychol%20Rev_Higher%20order%20factors.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13931},
  rating = {4}
}
@article{Skinner:1950,
  author = {BF Skinner},
  journal = {Psychological Review},
  title = {Are theories of learning necessary?},
  pages = {193--216},
  volume = {57},
  year = {1950},
  date-added = {2010-01-03 19:34:17 +0100},
  date-modified = {2010-01-03 19:34:18 +0100},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p948},
  rating = {0}
}
@article{Liang:2010p13624,
  author = {T Liang},
  title = {An Assessment of The Nonparametric Approach for Evaluating The Fit of Item Response Models},
  year = {2010},
  date-added = {2010-07-07 21:23:13 +0200},
  date-modified = {2010-07-07 21:23:43 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Liang-2010-_An%20Assessment%20of%20The.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13624},
  rating = {0}
}
@article{Mechelli:2009p3437,
  author = {Andrea Mechelli and Stefania Tognin and Philip K McGuire and Diana Prata and Giuseppe Sartori and Paolo Fusar-Poli and Stephane De Brito and Ahmad R Hariri and Essi Viding},
  journal = {Biol Psychiatry},
  title = {Genetic vulnerability to affective psychopathology in childhood: a combined voxel-based morphometry and functional magnetic resonance imaging study},
  abstract = {BACKGROUND: The majority of affective psychopathology is rooted early in life and first emerges during childhood and adolescence. However, little is known about how genetic vulnerability affects brain structure and function in childhood since the vast majority of studies published so far have been conducted on adult participants. The present investigation examined for the first time the effects of catechol-O-methyltransferase (COMT) valine (val) 158 methionine (met) (val158met) polymorphism, which has been shown to moderate predisposition to negative mood and affective disorders, on brain structure and function in children. METHODS: Voxel-based morphometry and functional magnetic resonance imaging were used to measure gray matter volume and emotional reactivity in 50 children aged between 10 and 12 years. We tested the hypothesis that met158 allele affects structural brain development and confers heightened reactivity within the affective frontolimbic circuit in children. RESULTS: The met158 allele was positively associated with gray matter volume in the left hippocampal head where genotype accounted for 59% of interindividual variance. In addition, the met158 allele was positively associated with neuronal responses to fearful relative to neutral facial expressions in the right parahippocampal gyrus where genotype accounted for 14% of the interindividual variance. CONCLUSIONS: These results indicate that the met158 allele is associated with increased gray matter volume and heightened reactivity during emotional processing within the limbic system in children as young as 10 to 12 years of age. These findings are consistent with the notion that genetic factors affect brain function to moderate vulnerability to affective psychopathology from childhood.},
  affiliation = {Department of Psychology, Institute of Psychiatry, PO Box 67, Division of Psychological Medicine and Psychiatry, King's College London, 103 Denmark Hill, London SE5 8AF, United Kingdom. a.mechelli@iop.kcl.ac.uk},
  number = {3},
  pages = {231--7},
  volume = {66},
  year = {2009},
  month = {Aug},
  language = {eng},
  keywords = {Methionine, Brain, Polymorphism: Genetic, Reaction Time, Valine, Magnetic Resonance Imaging, Catechol O-Methyltransferase, Twin Studies as Topic, Male, Neuropsychological Tests, Photic Stimulation, Longitudinal Studies, Child, Image Processing: Computer-Assisted, Brain Mapping, Affective Disorders: Psychotic, Genotype, Oxygen, Humans},
  date-added = {2010-01-15 15:18:42 +0100},
  date-modified = {2010-01-15 15:18:42 +0100},
  doi = {10.1016/j.biopsych.2009.01.033},
  pii = {S0006-3223(09)00156-5},
  pmid = {19278671},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3437},
  rating = {0}
}
@techreport{Festy:2008,
  author = {P Festy and L Prokofieva},
  journal = {Techreport},
  title = {MESURES, FORMES ET FACTEURS DE LA PAUVRET{\'E}. APPROCHES COMPARATIVES},
  affiliation = {INED},
  year = {2008},
  date-added = {2010-01-10 11:33:18 +0100},
  date-modified = {2010-01-10 11:33:25 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Festy-2008-Techreport_MESURES%20FORMES%20ET%20F.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2090},
  rating = {0}
}
@article{Davis:2007p9021,
  author = {Elise Davis and Caroline Nicolas and Elizabeth Waters and Kay Cook and Lisa Gibbs and Angela Gosch and Ulrike Ravens-Sieberer},
  journal = {Qual Life Res},
  title = {Parent-proxy and child self-reported health-related quality of life: using qualitative methods to explain the discordance},
  abstract = {BACKGROUND: Although parent-proxy reports of health-related quality of life (HRQOL) are only moderately correlated with child reported HRQOL, it remains unknown why these scores differ. The aim of this study was to use a qualitative methodology to examine why parents and children report different levels of HRQOL. METHOD: The sample consisted of 15 parent-child pairs. A think-aloud technique was used where parents and children were given a generic HRQOL instrument (KIDSCREEN) and instructed to share their thoughts with the interviewer. Qualitative analyses were conducted to assess whether parents and children base their answer on different experiences or reasoning, have different response styles, or interpret the items differently. RESULTS: There was discordance between parents and children, in terms of rating scale and in terms of the reasoning for their answer. Children tended to have different response styles to parents, where for example, children tended to provide extreme scores (highest or lowest score) and base their response on one single example, more than parents. Parents and children interpreted the meaning of the items very similarly. DISCUSSION: This study provides evidence to suggest that discordance among parent-child pairs on KIDSCREEN scores may be as a result of different reasoning and different response styles, rather than interpretation of items. These findings have important implications when parent-proxy reported HRQOL is used to guide clinical/treatment decisions.},
  affiliation = {School of Health and Social Development, Faculty of Health, Medicine, Nursing and Behavioural Sciences, Deakin University, Burwood, Victoria, 3125, Australia. elise.davis@deakin.edu.au},
  number = {5},
  pages = {863--71},
  volume = {16},
  year = {2007},
  month = {Jun},
  language = {eng},
  keywords = {Victoria, Proxy, Quality of Life, Psychometrics, Adult, Parents, Reproducibility of Results, Parent-Child Relations, Self Disclosure, Child Psychology, Male, Female, Child Rearing, Adolescent, Humans, Qualitative Research, Pilot Projects, Questionnaires, Interviews as Topic, Child},
  date-added = {2010-03-22 13:14:23 +0100},
  date-modified = {2010-07-29 19:48:31 +0200},
  doi = {10.1007/s11136-007-9187-3},
  pmid = {17351822},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Davis-2007-Qual%20Life%20Res_Parent-proxy%20and%20chi.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p9021},
  rating = {0}
}
@article{Rauch:2008p7867,
  author = {W A Rauch and K Schweizer and H Moosbrugger},
  journal = {European Journal of Psychology of Education},
  title = {An IRT Analysis of the Personal Optimism Scale},
  abstract = {In this study the psychometric properties of the Personal Optimism scale of the POSO-E questionnaire (Schweizer {\&} Koch, 2001) for the assessment of dispositional optimism are evaluated by applying Samejima's (1969) graded response model, a parametric item response theory (IRT) model for polytomous data. Model fit is extensively evaluated via fit checks on the lower-order margins of the contingency table of observed and expected responses and visual checks of fit plots comparing observed and expected category response functions. The model proves appropriate for the data; a small amount of misfit is interpreted in terms of previous research using other measures for optimism. Item parameters and information functions show that optimism can be measured accurately, especially at moderately low to middle levels of the latent trait scale, and particularly by the negatively worded items.},
  number = {1},
  pages = {49--56},
  volume = {24},
  year = {2008},
  date-added = {2010-03-20 19:03:55 +0100},
  date-modified = {2010-07-29 19:26:41 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Rauch-2008-European%20Journal%20of%20Psychology%20of%20Education_An%20IRT%20Analysis%20of%20t.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7867},
  rating = {0}
}
@article{Mackay:2009p11225,
  author = {T F C Mackay},
  journal = {Journal of Biology},
  title = {Genetic analysis of quantitative traits },
  number = {23},
  volume = {8},
  year = {2009},
  date-added = {2010-04-25 21:28:31 +0200},
  date-modified = {2010-04-25 21:29:18 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Mackay-2009-Journal%20of%20Biology_Genetic%20analysis%20of.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11225},
  rating = {0}
}
@article{Niccols:2002p8599,
  author = {A Niccols and A Latchman},
  journal = {The British Journal of Developmental Disabilities},
  title = {STABILITY OF THE BAYLEY MENTAL SCALE OF INFANT DEVELOPMENT WITH HIGH RISK INFANTS},
  number = {94},
  pages = {3--13},
  volume = {48},
  year = {2002},
  date-added = {2010-03-22 00:23:00 +0100},
  date-modified = {2010-03-22 00:23:52 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Niccols-2002-The%20British%20Journal%20of%20Developmental%20Disabilities_STABILITY%20OF%20THE%20BAY.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8599},
  rating = {0}
}
@article{Kim:2006p3913,
  author = {Sung Kim and Keyan Zhao and Rong Jiang and John Molitor and Justin O Borevitz and Magnus Nordborg and Paul Marjoram},
  journal = {Genetics},
  title = {Association mapping with single-feature polymorphisms},
  abstract = {We develop methods for exploiting "single-feature polymorphism" data, generated by hybridizing genomic DNA to oligonucleotide expression arrays. Our methods enable the use of such data, which can be regarded as very high density, but imperfect, polymorphism data, for genomewide association or linkage disequilibrium mapping. We use a simulation-based power study to conclude that our methods should have good power for organisms like Arabidopsis thaliana, in which linkage disequilibrium is extensive, the reason being that the noisiness of single-feature polymorphism data is more than compensated for by their great number. Finally, we show how power depends on the accuracy with which single-feature polymorphisms are called.},
  affiliation = {Department of Molecular and Computational Biology, University of Southern California, Los Angeles, CA 90089-2910, USA.},
  number = {2},
  pages = {1125--33},
  volume = {173},
  year = {2006},
  month = {Jun},
  language = {eng},
  keywords = {Haplotypes, Data Interpretation: Statistical, Genetic Markers, Cluster Analysis, Algorithms, Linkage Disequilibrium, Arabidopsis, Chromosome Mapping, Models: Genetic, Polymorphism: Genetic, Alleles},
  date-added = {2010-01-16 21:05:05 +0100},
  date-modified = {2010-01-16 21:05:05 +0100},
  doi = {10.1534/genetics.105.052720},
  pii = {genetics.105.052720},
  pmid = {16510789},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3913},
  rating = {0}
}
@article{Vickers:2001,
  author = {AJ Vickers and Douglas G Altman},
  journal = {British Medical Journal},
  title = {Analysing controlled trials with baseline and follow up measurements},
  abstract = {In many randomised trials researchers measure a continuous variable at baseline and again as an outcome assessed at follow up. Baseline measurements are common in trials of chronic conditions where researchers want to see whether a treatment can reduce pre-existing levels of pain, anxiety, hypertension, and the like. Statistical comparisons in such trials can be made in several ways. Comparison of follow up (post-treatment) scores will give a result such as "at the end of the trial, mean pain scores were 15 mm (95% confidence interval 10 to 20 mm) lower in the treatment group." Alternatively a change score can be calculated by subtracting the follow up score from the baseline score, leading to a statement such as "pain reductions were 20 mm (16 to 24 mm) greater on treatment than control." If the average baseline scores are the same in each group the estimated treatment effect will be the same using these two simple approaches. If the treatment is effective the statistical significance of the treatment effect by the two methods will depend on the correlation between baseline and follow up scores. If the correlation is low using the change score will add variation and the follow up score is more likely to show a significant result. Conversely, if the correlation is high using only the follow up score will lose information and the change score is more likely to be significant. It is incorrect, however, to choose whichever analysis gives a more significant finding. The method of analysis should be specified in the trial protocol.},
  pages = {1123--1124},
  volume = {323},
  year = {2001},
  date-added = {2010-01-03 19:36:10 +0100},
  date-modified = {2010-07-29 20:20:56 +0200},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1048},
  rating = {0}
}
@article{Igl:2010p5370,
  author = {Wilmar Igl and Asa Johansson and James F Wilson and Sarah H Wild and Ozren Polasek and Caroline Hayward and Veronique Vitart and Nicholas Hastie and Pavao Rudan and Carsten Gnewuch and Gerd Schmitz and Thomas Meitinger and Peter P Pramstaller and Andrew A Hicks and Ben A Oostra and Cornelia M van Duijn and Igor Rudan and Alan Wright and Harry Campbell and Ulf Gyllensten and EUROSPAN Consortium},
  journal = {PLoS Genet},
  title = {Modeling of environmental effects in genome-wide association studies identifies SLC2A2 and HP as novel loci influencing serum cholesterol levels},
  abstract = {Genome-wide association studies (GWAS) have identified 38 larger genetic regions affecting classical blood lipid levels without adjusting for important environmental influences. We modeled diet and physical activity in a GWAS in order to identify novel loci affecting total cholesterol, LDL cholesterol, HDL cholesterol, and triglyceride levels. The Swedish (SE) EUROSPAN cohort (N(SE) = 656) was screened for candidate genes and the non-Swedish (NS) EUROSPAN cohorts (N(NS) = 3,282) were used for replication. In total, 3 SNPs were associated in the Swedish sample and were replicated in the non-Swedish cohorts. While SNP rs1532624 was a replication of the previously published association between CETP and HDL cholesterol, the other two were novel findings. For the latter SNPs, the p-value for association was substantially improved by inclusion of environmental covariates: SNP rs5400 (p(SE,unadjusted) = 3.6 x 10(-5), p(SE,adjusted) = 2.2 x 10(-6), p(NS,unadjusted) = 0.047) in the SLC2A2 (Glucose transporter type 2) and rs2000999 (p(SE,unadjusted) = 1.1 x 10(-3), p(SE,adjusted) = 3.8 x 10(-4), p(NS,unadjusted) = 0.035) in the HP gene (Haptoglobin-related protein precursor). Both showed evidence of association with total cholesterol. These results demonstrate that inclusion of important environmental factors in the analysis model can reveal new genetic susceptibility loci.},
  affiliation = {Department of Genetics and Pathology, Rudbeck Laboratory, University of Uppsala, Uppsala, Sweden. wilmar.igl@genpat.uu.se},
  number = {1},
  pages = {e1000798},
  volume = {6},
  year = {2010},
  month = {Jan},
  language = {eng},
  date-added = {2010-02-11 09:22:46 +0100},
  date-modified = {2010-02-11 09:22:46 +0100},
  doi = {10.1371/journal.pgen.1000798},
  pmid = {20066028},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Igl-2010-PLoS%20Genet_Modeling%20of%20environm.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5370},
  rating = {0}
}
@article{Maisto:2010p13384,
  author = {Stephen A Maisto and Kathleen McGinnis and Robert Cook and Joseph Conigliaro and Kendall Bryant and Amy C Justice},
  journal = {AIDS Behav},
  title = {Factor structure of Leigh's (1990) alcohol sex expectancies scale in individuals in treatment for HIV disease},
  abstract = {The purpose of this study was to validate the use of Leigh's (1990) alcohol sex expectancies scale among HIV-infected individuals presenting for treatment as a way to facilitate research on sexual risk reduction among individuals in that population. The participants were 944 men who presented for treatment at infectious disease or general medicine clinics across 8 different VA Medical Center sites. A total of 534 of these men were HIV-positive and 410 were HIV-negative. The total sample was randomly divided in half within each HIV group to form exploratory (Sample 1) and confirmatory (Sample 2) subsamples. A principal components factor analysis with oblique rotation of the original 13-item Leigh scale within each HIV group in Sample 1 revealed a 2-factor (7 and 4 items, respectively) solution that was consistent across both HIV groups. These factors were named "More Open to Sexual Pleasure" (Factor 1) and "Reduced Inhibitions about Sex (Factor 2)." A confirmatory factor analysis of the 11-item, 2-factor solution on the full Sample 2 showed a modest fit to the data, excellent internal consistency reliability of both factors, a high correlation between the factors, and strong evidence for construct validity. These results were interpreted as supporting the use of the 11-item, 2-factor version of Leigh's scale in studies of clinical samples of HIV-positive adults, and directions for research on further scale refinement are discussed.},
  affiliation = {Department of Psychology, Syracuse University, Syracuse, NY 13244, USA. samaisto@syr.edu},
  number = {1},
  pages = {174--80},
  volume = {14},
  year = {2010},
  month = {Feb},
  language = {eng},
  keywords = {Alcohol Drinking, Sexual Behavior, Humans, Factor Analysis: Statistical, Ethnic Groups, Prevalence, Middle Aged, Male, HIV Infections, Risk-Taking, Follow-Up Studies, Questionnaires, Risk Factors, HIV Seropositivity, Reproducibility of Results, Female},
  date-added = {2010-07-01 19:24:23 +0200},
  date-modified = {2010-07-01 19:24:23 +0200},
  doi = {10.1007/s10461-008-9457-2},
  pmid = {18791863},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Maisto-2010-AIDS%20Behav_Factor%20structure%20of.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13384},
  rating = {0}
}
@article{Guinot:2001p4081,
  author = {C Guinot and J Latreille and M Tenenhaus},
  journal = {Chemometrics and Intelligent Laboratory Systems},
  title = {PLS Path modelling and multiple table analysis. Application to the cosmetic habits of women in Ile-de-France},
  abstract = {Many statistical methods can be used to study data presented in the form of J blocks of variables observed on the same subjects. The most well-known methods are the following: Horst's generalised canonical correlation analysis, Carroll's gen- eralised canonical correlation analysis, Escofier and Page`s' multiple factor analysis and second order confirmatory factor analysis. The aim of all these methods is to identify a common structure among the J data tables. The partial least squares {\v Z}PLS. Path modelling approach of Herman Wold can also be used on this type of data. Generalised canonical correlation analyses of Horst and Carroll and multiple factor analysis are special cases of PLS Path modelling, but this approach also leads to new useful methods. In the first part of this paper, we briefly review PLS Path modelling, then we look in greater detail at the specific case of tables without structural relations. In the second part, we have applied PLS Path modelling to a study of the cosmetic habits of women in the Ile-de-France region. Lohmo ̈ller's LVPLS software release 1.8 allowed us to carry out the application without too many difficulties.},
  pages = {247--259},
  volume = {58},
  year = {2001},
  date-added = {2010-01-19 15:59:53 +0100},
  date-modified = {2010-01-19 16:00:55 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Guinot-2001-Chemometrics%20and%20Intelligent%20Laboratory%20Systems_PLS%20Path%20modelling%20a.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4081},
  rating = {0}
}
@article{Novartis:2006p1719,
  author = {Novartis},
  title = {Guidance for the Use of Bayesian Statistics in Medical Device Clinical Trials},
  year = {2006},
  date-added = {2010-01-09 20:26:46 +0100},
  date-modified = {2010-01-09 20:27:17 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Novartis-2006-_Guidance%20for%20the%20Use.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1719},
  rating = {0}
}
@article{Schroeder:2001p4354,
  author = {J C Schroeder and C R Weinberg},
  journal = {Am J Epidemiol},
  title = {Use of missing-data methods to correct bias and improve precision in case-control studies in which cases are subtyped but subtype information is incomplete},
  abstract = {Histologic and genetic markers can sometimes make it possible to refine a disease into subtypes. In a case-control study, an attempt to subcategorize a disease in this way can be important to elucidating its etiology if the subtypes tend to result from distinct causal pathways. Using subtyped case outcomes, one can carry out either a case-case analysis to investigate etiologic heterogeneity or do polytomous logistic regression to estimate odds ratios specific to subtypes. Unfortunately, especially when such an analysis is undertaken after the study has been completed, it may be compromised by the unavailability of tissue specimens, resulting in missing subtype data for many enrolled cases. The authors propose that one can more fully use the available data, including that provided by cases with missing subtype, by using the expectation-maximization algorithm to estimate risk parameters. For illustration, they apply the method to a study of non-Hodgkin's lymphoma in the midwestern United States. The simulations then demonstrate that, under assumptions likely to hold in many settings, the approach eliminates bias that would arise if unclassified cases were ignored and also improves the precision of estimation. Under the same assumptions, empirical confidence interval coverage is consistent with the nominal 95%.},
  affiliation = {Epidemiology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, NC27709, USA. schroed1@niehs.nih.gov},
  number = {10},
  pages = {954--62},
  volume = {154},
  year = {2001},
  month = {Nov},
  language = {eng},
  keywords = {Likelihood Functions, Algorithms, Analysis of Variance, Bias (Epidemiology), Outcome Assessment (Health Care), Odds Ratio, Lymphoma: Non-Hodgkin, Humans, Computer Simulation, Case-Control Studies, Models: Statistical, Midwestern United States},
  date-added = {2010-01-27 18:27:46 +0100},
  date-modified = {2010-01-27 18:27:46 +0100},
  pmid = {11700251},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Schroeder-2001-Am%20J%20Epidemiol_Use%20of%20missing-data.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4354},
  rating = {0}
}
@article{Kloosterman:2010p7566,
  author = {Bjorn Kloosterman and Marian Oortwijn and Jan Uitdewilligen and Twan America and Ric de Vos and Richard G F Visser and Christian W B Bachem},
  journal = {BMC Genomics},
  title = {From QTL to candidate gene: Genetical genomics of simple and complex traits in potato using a pooling strategy},
  abstract = {ABSTRACT: BACKGROUND: Utilization of the natural genetic variation in traditional breeding programs remains a major challenge in crop plants. The identification of candidate genes underlying, or associated with, phenotypic trait QTLs is desired for effective marker assisted breeding. With the advent of high throughput -omics technologies, screening of entire populations for association of gene expression with targeted traits is becoming feasible but remains costly. Here we present the identification of novel candidate genes for different potato tuber quality traits by employing a pooling approach reducing the number of hybridizations needed. Extreme genotypes for a quantitative trait are collected and the RNA from contrasting bulks is then profiled with the aim of finding differentially expressed genes. RESULTS: We have successfully implemented the pooling strategy for potato quality traits and identified candidate genes associated with potato tuber flesh color and tuber cooking type. Elevated expression level of a dominant allele of the beta-carotene hydroxylase (bch) gene was associated with yellow flesh color through mapping of the gene under a major QTL for flesh color on chromosome 3. For a second trait, a candidate gene with homology to a tyrosine-lysine rich protein (TLRP) was identified based on allele specificity of the probe on the microarray. TLRP was mapped on chromosome 9 in close proximity to a QTL for potato cooking type strengthening its significance as a candidate gene. Furthermore, we have performed a profiling experiment targeting a polygenic trait, by pooling individual genotypes based both on phenotypic and marker data, allowing the identification of candidate genes associated with the two different linkage groups. CONCLUSIONS: A pooling approach for RNA-profiling with the aim of identifying novel candidate genes associated with tuber quality traits was successfully implemented. The identified candidate genes for tuber flesh color (bch) and cooking type (tlrp) can provide useful markers for breeding schemes in the future. Strengths and limitations of the approach are discussed.},
  number = {1},
  pages = {158},
  volume = {11},
  year = {2010},
  month = {Mar},
  language = {ENG},
  date-added = {2010-03-14 10:57:43 +0100},
  date-modified = {2010-03-14 10:57:43 +0100},
  doi = {10.1186/1471-2164-11-158},
  pii = {1471-2164-11-158},
  pmid = {20210995},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Kloosterman-2010-BMC%20Genomics_From%20QTL%20to%20candidat-1.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7566},
  rating = {0}
}
@article{Rose:2002p7931,
  author = {Susan A Rose and Judith F Feldman and Jeffery J Jankowski},
  journal = {Dev Psychol},
  title = {Processing speed in the 1st year of life: a longitudinal study of preterm and full-term infants},
  abstract = {Processing speed was assessed at 5, 7, and 12 months in full-term and preterm infants (birth-weight < 1,750 g). Speed was gauged directly in a new task by presenting infants with a series of paired faces, one that remained the same across trials and one that changed; trials continued until infants showed a consistent novelty preference. At all ages, preterms required about 20% more trials and 30% more time than full-terms to reach criterion. Among preterms, slower processing was associated with greater medical risk (e.g., respiratory distress syndrome). Developmental trajectories for speed (and attention) were similar for both groups. Thus, the deficits in processing speed previously found for preterms in childhood are already present in the 1st year of life.},
  affiliation = {Department of Pediatrics, Albert Einstein College of Medicine/Children's Hospital at Montefiore, Bronx, New York 10461, USA. srose@aecom.yu.edu},
  number = {6},
  pages = {895--902},
  volume = {38},
  year = {2002},
  month = {Nov},
  language = {eng},
  keywords = {Humans, Face, Reaction Time, Infant: Newborn, Infant, Longitudinal Studies, Prospective Studies, Concept Formation, Pattern Recognition: Visual, Attention, Discrimination Learning, Retention (Psychology), Respiratory Distress Syndrome: Newborn, Risk Factors, Male, Mental Recall, Female},
  date-added = {2010-03-20 19:23:19 +0100},
  date-modified = {2010-07-29 19:25:17 +0200},
  pmid = {12428702},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Rose-2002-Dev%20Psychol_Processing%20speed%20in.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7931},
  rating = {0}
}
@article{Kayaalp:2007p6066,
  author = {Levent Kayaalp and Aysin Dervent and Sema Saltik and Derya Uluduz and Inci Vural Kayaalp and Veysi Demirbilek and Mohammad Ghaziuddin},
  journal = {Brain Dev},
  title = {EEG abnormalities in West syndrome: correlation with the emergence of autistic features},
  abstract = {Autism may develop in children with West syndrome. This study was conducted to determine if EEG abnormalities in patients with West syndrome predict the later onset of autism. Two groups of patients with West syndrome, older than 6 years of age, were studied. One group consisted of those with a past history of West syndrome plus autism (N=14); the control group consisted of those with a past history of West syndrome but without autism (N=14). Patients were followed at regular intervals and video-EEG recordings were done. A total of 108 (autistic group) and 123 (non-autistic group) video-EEGs were examined. The two groups were compared with respect to age, presence or absence of hypsarrhythmia, and characteristics and localization of the epileptogenic foci. chi2 and Fisher's exact tests were used. The number of patients with at least one hypsarrhythmic EEG at the age of one year or later was significantly higher in autistic subjects (86%) than in non-autistic controls (29%). The incidence of EEGs with hypsarrhythmia was also higher in the autistic group, especially in older children (autistic, 49% versus non-autistic, 18% at age 3 years and later). Frontal predominance of the primary foci on EEGs with or without hypsarrhythmia was seen in 95.3% of the autistic group and 28.8% of the non-autistic group (p=0.001). Frontal abnormalities on the EEGs, which were mainly bilateral, and the persistence of hypsarrhythmia were significantly related to the emergence of autistic behavior in patients with West syndrome. These findings suggest that paroxysmal discharges in the cortical areas undergoing rapid maturation may be involved in the development of autistic features.},
  affiliation = {Istanbul University, Cerrahpasa Medical Faculty, Child Psychiatry Department, Istanbul, Turkey.},
  number = {6},
  pages = {336--45},
  volume = {29},
  year = {2007},
  month = {Jul},
  language = {eng},
  keywords = {Age of Onset, Child, Chi-Square Distribution, Infant, Male, Electroencephalography, Child: Preschool, Functional Laterality, Female, Brain Mapping, Spasms: Infantile, Humans, Autistic Disorder},
  date-added = {2010-02-19 17:03:06 +0100},
  date-modified = {2010-02-19 17:03:06 +0100},
  doi = {10.1016/j.braindev.2006.10.002},
  pii = {S0387-7604(06)00238-5},
  pmid = {17113261},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6066},
  rating = {0}
}
@article{Vermunt:2010p11670,
  author = {J K Vermunt and J Magidson},
  title = {Latent Class Analysis},
  date-added = {2010-05-14 21:09:36 +0200},
  date-modified = {2010-05-14 21:09:59 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Vermunt--_Latent%20Class%20Analysi.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11670},
  read = {Yes},
  rating = {0}
}
@article{Williams:2006p5237,
  author = {Christopher J Williams and Joe C Christian},
  journal = {Behav Genet},
  title = {Frequentist model-averaged estimators and tests for univariate twin models},
  abstract = {Parameter estimates from analyses of univariate twin data usually do not reflect the uncertainty due to the model selection phase of the data analysis. To address the effect of model selection uncertainty on parameter estimates, we introduce frequentist model-averaged estimators for univariate twin data analysis that use information-theoretic criteria to assign model weights. We conduct simulation studies to examine the performance of model-averaged estimators of additive genetic variance, and for tests for additive genetic variance based on model-averaged estimators. In simulation studies with small or moderate sample sizes, model-averaged estimators of additive genetic variance typically have lower mean-squared error than either (i) estimators from individual twin models, or (ii) estimators obtained from a decision procedure where the best-fitting model from likelihood-ratio testing is used to estimate additive genetic variance. For each sample size simulated, bootstrap tests based on model-averaged estimators have higher power to detect additive genetic variance than currently-used tests in most cases.},
  affiliation = {Department of Statistics, University of Idaho, Moscow, ID 83844-1104, USA. chrisw@uidaho.edu},
  number = {5},
  pages = {687--96},
  volume = {36},
  year = {2006},
  month = {Sep},
  language = {eng},
  keywords = {Models: Genetic, Humans, Computer Simulation, Twins, Reproducibility of Results, Genetic Variation, Gene Frequency, Analysis of Variance},
  date-added = {2010-02-08 19:38:00 +0100},
  date-modified = {2010-07-29 20:09:06 +0200},
  doi = {10.1007/s10519-006-9065-8},
  pmid = {16710780},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5237},
  rating = {0}
}
@article{Malet:2006p12769,
  author = {Laurent Malet and Pierre-Michel Llorca and B{\'e}r{\'e}nice Beringuier and Philippe Lehert and Bruno Falissard},
  journal = {Alcohol Alcohol},
  title = {AlQoL 9 for measuring quality of life in alcohol dependence},
  abstract = {AIMS: Quality of life (QoL) is an important factor of outcome tracking and treatment in alcohol misuse. A 9-item QoL scale, AlQoL 9, obtained from the generic SF 36, is proposed as a measure that characterizes the QoL of alcohol-dependent patients. Our objective was to study the psychometric properties of this subscale. METHODS: AlQoL 9 was evaluated in two study groups of patients with DSM-IV diagnosis of dependence: 104 inpatients, and 114 outpatients. Severity of dependence, alcohol consumption, psychiatric, and somatic comorbidities were assessed. We studied the global properties of AlQoL 9 and its structure. RESULTS: Cronbach alpha-coefficients in both populations indicated good internal consistency (0.71 and 0.85). Test-retest intraclass coefficients for a 2-day interval in hospital were in the range 0.57-0.78. Principal component analysis found a unidimensional scale. This subscale has properties that are consistent with the concept of QoL in alcohol dependence, i.e. lowered QoL compared with the general population, influenced by gender, and depression. CONCLUSIONS: AlQoL 9 epitomizes QoL in alcohol-dependence. It gives a global measurement with good psychometric properties. It could be used in clinical practice as a diagnosis and management support instrument and may also be useful in research for evaluating treatment efficacy.},
  affiliation = {Centre Hospitalier Universitaire, Department of Psychiatry-B, rue Montalembert BP 69, 63003 Clermont-Ferrand cedex 1, France. lmalet@chu-clermontferrand.fr},
  number = {2},
  pages = {181--7},
  volume = {41},
  year = {2006},
  month = {Jan},
  language = {eng},
  keywords = {Quality of Life, Alcoholism, Middle Aged, Adolescent, Adult, Psychometrics, Male, Treatment Outcome, Questionnaires, Aged, Diagnostic and Statistical Manual of Mental Disorders, Humans, Female},
  date-added = {2010-06-18 20:32:49 +0200},
  date-modified = {2010-07-29 19:12:56 +0200},
  doi = {10.1093/alcalc/agl001},
  pii = {agl001},
  pmid = {16455795},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Malet-2006-Alcohol%20Alcohol_AlQoL%209%20for%20measurin.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12769},
  rating = {3}
}
@article{Ciuciu:2003p2316,
  author = {P Ciuciu and J B Poline and G Marrelec and J Idier and C Pallier and H Benali},
  journal = {IEEE Transactions on Medical Imaging},
  title = {Unsupervised robust non-parametric estimation of
the hemodynamic response function for any fMRI
experiment},
  abstract = {This paper deals with the estimation of the Blood Oxygen Level-Dependent (BOLD) response to a stimulus, as measured in Functional Magnetic Resonance Imaging (fMRI) data. A precise estimation is essential for a better understanding of cerebral activations. The most recent works have used a non-parametric framework for this estimation, considering each brain region as a system characterized by its impulse response, the so-called Hemodynamic Response Function (HRF). However, the use of these techniques has remained limited since they are not well-adapted to real fMRI data. Here, we develop a threefold extension to previous works. We consider asyn- chronous event-related paradigms, account for different trial types and integrate several fMRI sessions into the estimation.
These generalizations are simultaneously addressed through a badly-conditioned observation model. Bayesian formalism is used to model temporal prior information of the underlying physiological process of the brain hemodynamic response. By this way, the HRF estimate results from a tradeoff between information brought by the data and by our prior knowledge. This tradeoff is modeled with hyperparameters that are set to the maximum-likelihood estimate using an Expectation Conditional Maximization (ECM) algorithm. The proposed unsupervised approach is validated on both synthetic and real fMRI data, the latter originating from a speech perception experiment.},
  number = {10},
  pages = {1235--1251},
  volume = {22},
  year = {2003},
  date-added = {2010-01-10 12:32:53 +0100},
  date-modified = {2010-01-10 12:34:24 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Ciuciu-2003-IEEE%20Transactions%20on%20Medical%20Imaging_Unsupervised%20robust.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2316},
  rating = {0}
}
@misc{Socan:2000,
  author = {Gregor Socan},
  journal = {Miscellaneous},
  title = {Assessment of reliability when test items are not essentially tau-equivalent},
  year = {2000},
  date-added = {2010-01-10 11:33:24 +0100},
  date-modified = {2010-01-10 11:33:25 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Socan-2000-Miscellaneous_Assessment%20of%20reliab.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2147},
  rating = {0}
}
@article{Bookman:2002p9056,
  author = {E B Bookman and R E Taylor and L Adams-Campbell and R A Kittles},
  journal = {Mol Psychiatry},
  title = {DRD4 promoter SNPs and gender effects on Extraversion in African Americans},
  abstract = {There is strong evidence for genetic influences on personality traits. Interest in one such gene, the dopamine D4 receptor (DRD4) grew after an exon III polymorphism was associated with Novelty Seeking and related measures of Extraversion. However, the findings were not confirmed in later studies. Recently, a -521C/T single nucleotide polymorphism (SNP) within the promoter region of the DRD4 gene was found to be related to Novelty Seeking scores in populations from Japan and Hungary. Since little is known about the role DRD4 plays in personality in other populations we evaluated if two DRD4 promoter SNPs, -521C/T and -616C/G, were related to personality traits in African Americans. Personality traits were measured by the NEO-FFI in 71 unrelated African Americans. Genotyping was performed using PCR-RFLP. Multivariate analyses of variance (MANOVA) were performed to evaluate the effects of gender and -616 and -521 genotypes on personality traits. A significant three-way interaction effect from gender, -616 genotype, and -521 genotype was observed for Extraversion scores (F(1,54) 5.86, P < 0.02). Subsequent analyses revealed that the association was mainly due to -521C/T genotype among females (P = 0.01). This study provides further evidence that genetic variation within the DRD4 promoter and gender differences contribute to variation in Novelty Seeking behaviors such as Extraversion.},
  affiliation = {Department of Genetics and Human Genetics, Howard University, Washington, DC 20060, USA.},
  number = {7},
  pages = {786--9},
  volume = {7},
  year = {2002},
  month = {Jan},
  language = {eng},
  keywords = {Humans, Gene Frequency, Receptors: Dopamine D2, Adult, Male, Polymorphism: Single Nucleotide, Sex Factors, Extraversion (Psychology), African Continental Ancestry Group, Genotype, Receptors: Dopamine D4, Female, Promoter Regions: Genetic},
  date-added = {2010-03-22 13:18:17 +0100},
  date-modified = {2010-03-22 13:18:17 +0100},
  doi = {10.1038/sj.mp.4001075},
  pmid = {12192624},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Bookman-2002-Mol%20Psychiatry_DRD4%20promoter%20SNPs%20a.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p9056},
  rating = {0}
}
@article{Ginkel:2007b,
  author = {Joost R van Ginkel and L Andries van der Ark and Klaas Sijtsma},
  journal = {Multivariate Behavioral Research},
  title = {Multiple Imputation of Item Scores in Test and Questionnaire Data, and Influence on Psychometric Results},
  abstract = {The performance of five simple multiple imputation methods for dealing with missing data were compared. In addition, random imputation and multivariate normal imputation were used as lower and upper benchmark, respectively. Test data were simulated and item scores were deleted such that they were either missing completely at random, missing at random, or not missing at random. Cronbach's alpha, Loevinger's scalability coefficient H, and the item cluster solution from Mokken scale analysis of the complete data were compared with the corresponding results based on the data including imputed scores. The multiple-imputation methods, two-way with normally distributed errors, corrected item-mean substitution with normally distributed errors, and response function, produced discrepancies in Cronbach's coefficient alpha, Loevinger's coefficient H, and the cluster solution from Mokken scale analysis, that were smaller than the discrepancies in upper benchmark multivariate normal imputation.},
  number = {2},
  pages = {387--414},
  volume = {42},
  year = {2007},
  date-added = {2010-01-10 11:33:23 +0100},
  date-modified = {2010-07-29 20:42:55 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Ginkel-2007-Multivariate%20Behavioral%20Research_Multiple%20Imputation.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2023},
  rating = {0}
}
@article{Jevtovic:2009p5147,
  author = {Dj Jevtovi{\'c} and V Vanovac and M Veselinovi{\'c} and D Salemovi{\'c} and J Ranin and E Stefanova},
  journal = {Biomed Pharmacother},
  title = {The incidence of and risk factors for HIV-associated cognitive-motor complex among patients on HAART},
  abstract = {BACKGROUND: While highly active antiretroviral therapy (HAART) allows for the considerable decline in the incidence of HIV-related opportunistic infections and tumors, its effect on treating HIV infection of the brain, such as HIV-associated dementias (HADs), remains unclear. METHODS: A cross-sectional study of consecutive series of 96 patients from the Serbian HIV/AIDS cohort, treated with HAART in our HIV unit was performed to evaluate the incidence of and risk factors for cognitive/motor complex during HAART. CD4+T cell counts and pVL values at the time of neurological evaluation were parameters of the response to HAART. The mini-mental test and neurologic examination were performed at one point of time during treatment to reveal cognitive and/or motor disorders. RESULTS: After mean HAART duration of 47 months, unimpaired cognition, minor cognitive impairment, and HIV-associated dementia were recorded in 56 (58.3%), 27 (28.1%), and 13 (13.5%), respectively. Motor abnormalities had 39 (40.6%) patients. Of these, 21, 12, and 6 patients belong to the subgroups with normal cognition, minor cognitive impairment and HAD patients, respectively. Factors predictive for HAD were age over 40 (OR 3.7, 95% CI 1.07-13.28, P=0.039), and AIDS diagnosis prior to HAART initiation (OR 14.19, 95% CI 1.76-114.16, P=0.013). Conversely, factors shown to be protective against HAD were the usage of AZT and NNRTIs, as components of HAART regimens (OR 0.18, 95% CI 0.046-0.76, P=0.019, and OR 0.14, 95% CI 0.034-0.6, P=0.008). CONCLUSION: Cognitive/motor complex has still remained a significant neuropathology among late presenters and elder HIV/AIDS patients. Certain HAART regimens containing AZT, and/or NNRTIs, could be protective for these patients.},
  affiliation = {HIV/AIDS Department, Institute for Infectious and Tropical Diseases, Belgrade University School of Medicine, Clinical Centre of Serbia, Bulevar Oslobodjenja 16, 11000 Belgrade, Serbia. djordjejevtovic@hotmail.com},
  number = {8},
  pages = {561--5},
  volume = {63},
  year = {2009},
  month = {Sep},
  language = {eng},
  keywords = {Incidence, Time Factors, Motor Skills, Risk Factors, AIDS Dementia Complex, HIV Infections, Female, Adolescent, Male, Psychiatric Status Rating Scales, Middle Aged, RNA: Viral, Treatment Outcome, Odds Ratio, Neurologic Examination, Cognition, HIV, CD4 Lymphocyte Count, Young Adult, Humans, Logistic Models, Cross-Sectional Studies, Risk Assessment, Neuroprotective Agents, Viral Load, Adult, Age Factors, Anti-HIV Agents, Antiretroviral Therapy: Highly Active, Aged, Serbia},
  date-added = {2010-02-05 20:19:44 +0100},
  date-modified = {2010-02-05 20:19:44 +0100},
  doi = {10.1016/j.biopha.2008.09.015},
  pii = {S0753-3322(08)00365-X},
  pmid = {19026516},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5147},
  rating = {0}
}
@article{Rousson:2002p14018,
  author = {Valentin Rousson and Theo Gasser and Burkhardt Seifert},
  journal = {Stat Med},
  title = {Assessing intrarater, interrater and test-retest reliability of continuous measurements},
  abstract = {In this paper we review the problem of defining and estimating intrarater, interrater and test-retest reliability of continuous measurements. We argue that the usual notion of product-moment correlation is well adapted in a test-retest situation, whereas the concept of intraclass correlation should be used for intrarater and interrater reliability. The key difference between these two approaches is the treatment of systematic error, which is often due to a learning effect for test-retest data. We also consider the reliability of a sum and a difference of variables and illustrate the effects on components. Further, we compare these approaches of reliability with the concept of limits of agreement proposed by Bland and Altman (for evaluating the agreement between two methods of clinical measurements) and show how product-moment correlation is related to it. We then propose new kinds of limits of agreement which are related to intraclass correlation. A test battery to study the development of neuro-motor functions in children and adolescents illustrates our purpose throughout the paper.},
  affiliation = {Department of Biostatistics, Institute for Social and Preventive Medicine, University of Zurich, Sumatrastrasse 30, CH-8006 Zurich, Switzerland. rousson@ifspm.unizh.ch},
  number = {22},
  pages = {3431--46},
  volume = {21},
  year = {2002},
  month = {Nov},
  language = {eng},
  keywords = {Child, Models: Statistical, Female, Humans, Reproducibility of Results, Motor Skills, Male, Observer Variation},
  date-added = {2010-08-07 10:08:26 +0200},
  date-modified = {2010-08-07 10:08:35 +0200},
  doi = {10.1002/sim.1253},
  pmid = {12407682},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Rousson-2002-Stat%20Med_Assessing%20intrarater.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p14018},
  rating = {3}
}
@article{WillemsenSwinkels:2002p6196,
  author = {Sophie H N Willemsen-Swinkels and Jan K Buitelaar},
  journal = {Psychiatr Clin North Am},
  title = {The autistic spectrum: subgroups, boundaries, and treatment},
  abstract = {There is consensus about the disorders that comprise the autistic spectrum, with autistic disorder, Asperger's disorder, and PDD-NOS as the most typical examples and Rett's disorder and disintegrative disorder as the other components. Important controversies regarding the precise definitions of autistic spectrum disorders and the boundaries between the milder manifestations of those disorders, particularly PDD-NOS, and non-autistic conditions have not been and cannot be resolved fully as long as there is no known biologic cause or consistent biologic or psychological marker. This includes issues as basic as whether the autistic spectrum is a predominantly unitary entity or a collection of more or less similar phenotypes with multiple, varying etiologies. This is why the highest long-term priority in the area of definite diagnosis is the search for biologic marker(s) for autism and related autism spectrum disorders [91]. In the absence of a medical test to unequivocally diagnose autism, definitions of autism and related conditions are based only on manifestations in overt behavior, with all the unreliability this entails. In the future, the discovery of biologic correlates, causes, and pathogenetic pathways will undoubtedly change the way in which autism is diagnosed and lead to a new nosology [95]. Until that time the definitions in the current versions of the classification systems should be considered in a state of evolution. The key problem of the current classification systems is the fact that the boundaries between the various disorders are fuzzy. Instead of a categorical approach, a more useful description might be that of "autistic spectrum disorder," which reflects the range of severity of symptoms. Such a dimensional understanding of PDD is useful to clinicians, who may otherwise use nonspecific terms to avoid the categorical diagnosis of autism [31]. Rutter and Schopler [96] argued for separate clinical and research schemes because clinical and research needs are different. For research purposes it is desirable to have as much direct comparability across studies as possible. The focus is on a high degree of homogeneity within diagnostic groupings. A price must be paid for this detailed specification, and the main cost lies in the proportion of cases left undiagnosed. For example, there may be good scientific reasons for a narrowly defined categorical diagnosis that includes only individuals who definitely and clearly have a specifically defined condition and excludes individuals who may have the condition. For clinicians and educators, classification helps guide the selection of treatments for an individual. From this point of view, broader diagnostic concepts may be most appropriate [95].},
  affiliation = {Department of Child and Adolescent Psychiatry, University Medical Center, PO Box 85500, 3508 GA Utrecht, The Netherlands. s.h.n.willemsen@psych.azu.nl},
  number = {4},
  pages = {811--36},
  volume = {25},
  year = {2002},
  month = {Dec},
  language = {eng},
  keywords = {Autistic Disorder, Infant, Syndrome, Child, Treatment Outcome, Humans, Diagnosis: Differential},
  date-added = {2010-02-19 20:22:13 +0100},
  date-modified = {2010-07-29 19:53:27 +0200},
  pmid = {12462862},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6196},
  rating = {0}
}
@article{JohnsonKozlow:2010p10008,
  author = {Marilyn Johnson-Kozlow and Dennis R Wahlgren and Melbourne F Hovell and Danette M Flores and Sandy Liles and C Richard Hofstetter and Jennifer Zellner and Joy M Zakarian},
  journal = {Journal of Clinical Epidemiology},
  title = {Adolescents validly report their exposure to secondhand smoke},
  abstract = {OBJECTIVE: This study examined the validity of child-reported exposure to secondhand smoke (SHS) and investigated factors, such as child's age, which might affect accuracy of recall. STUDY DESIGN AND SETTING: Participants were drawn from a nonprobability sample of 380 families who completed baseline assessment as part of a randomized trial of an SHS reduction intervention conducted in an urban setting in Southern California. Parents and children (aged 8-13 years) retrospectively reported child's exposure to SHS using timeline followback methodology; reports were compared with child's urine cotinine. RESULTS: Validity coefficients for parents and children were comparable (r=0.58 vs. r=0.53), but parents recalled three times more exposure than children (2.2 vs. 0.8 cigarettes per day; P<0.001). Regression models predicting cotinine indicated that including child in addition to parent reports resulted in better prediction than either alone. CONCLUSION: When there is a choice, parent reports are preferable over child reports because of decreased underreporting. However, child-reported SHS exposure had adequate validity (r>0.50) and might be appropriate in some situations. Researchers might consider collecting both parent and child reports because each made a unique contribution to the prediction of cotinine.},
  affiliation = {Center for Behavioral Epidemiology and Community Health, Graduate School of Public Health, San Diego State University, San Diego, CA 92123, USA.},
  pages = {},
  year = {2010},
  month = {Mar},
  language = {ENG},
  date-added = {2010-03-31 20:00:04 +0200},
  date-modified = {2010-03-31 20:00:04 +0200},
  doi = {10.1016/j.jclinepi.2009.11.015},
  pii = {S0895-4356(09)00391-6},
  pmid = {20346628},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Johnson-Kozlow-2010-Journal%20of%20Clinical%20Epidemiology_Adolescents%20validly-1.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p10008},
  rating = {0}
}
@article{Bolker:2008p2295,
  author = {B Bolker},
  title = {GLMM simulation and p-value computation in lme4},
  year = {2008},
  date-added = {2010-01-10 12:09:55 +0100},
  date-modified = {2010-01-10 12:10:12 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Bolker-2008-_GLMM%20simulation%20and.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2295},
  rating = {0}
}
@article{Chavent:2007p4096,
  author = {M Chavent and V Kuentz and J Saracco},
  journal = {Modulad},
  title = {Analyse en Facteurs : pr ́esentation et comparaison des logiciels SAS, SPAD et SPSS},
  abstract = {In data analysis, factorial methods are essential. These techniques can be used as an end in themselves, seeking to highlight underlying common factors in a group of variables. They can also be used as input to another analysis. Then, they consist in data dimension reduction and operate by replacing the original variables, sometimes highly correlated, by a smaller number of linearly independent variables. Factor Analysis (F.A.) is one possible method for quantitative data. This article aims at presenting in a synthetic way the F.A. model, rarely described in French books, but frequent in the Anglo-Saxon literature, and often available in softwares. The presentation of the estimation techniques for the F.A. model enables to estab- lish the existing connection between Principal Component Analysis (P.C.A.) and F.A. The usefulness of rotation techniques, which can facilitate the interpretation of the results, will also be shown. An application on crime data of American cities will be carried out and will allow to describe the results provided by three of the most used statistical softwares : SAS, SPAD and SPSS. Then it will help to clarify the vocabulary, sometimes confused for the user.},
  number = {37},
  year = {2007},
  date-added = {2010-01-19 23:27:45 +0100},
  date-modified = {2010-07-29 19:40:18 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Chavent-2007-Modulad_Analyse%20en%20Facteurs.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4096},
  rating = {0}
}
@article{Kendler:2003p2903,
  author = {Kenneth S Kendler and Carol A Prescott and John Myers and Michael C Neale},
  journal = {Arch Gen Psychiatry},
  title = {The structure of genetic and environmental risk factors for common psychiatric and substance use disorders in men and women},
  abstract = {BACKGROUND: Patterns of comorbidity suggest that the common psychiatric and substance use syndromes may be divisible into 2 broad groups of internalizing and externalizing disorders. We do not know how genetic and environmental risk factors contribute to this pattern of comorbidity or whether the etiologic structure of these groups differ in men and women. METHODS: Lifetime diagnoses for 10 psychiatric syndromes were obtained at a personal interview in more than 5600 members of male-male and female-female twin pairs ascertained from a population-based registry. Multivariate twin modeling was performed using the program Mx. RESULTS: We first fit models to the following 7 syndromes: major depression, generalized anxiety disorder, phobia, alcohol dependence, drug abuse/dependence, adult antisocial behavior, and conduct disorder. The full model, which could be constrained to equality in male and female subjects, identified 2 genetic factors. The first had strongest loadings on alcohol dependence, drug abuse/dependence, adult antisocial behavior, and conduct disorder; the second, on major depression, generalized anxiety disorder, and phobia. Alcohol dependence and drug abuse/dependence had substantial disorder-specific genetic risk factors. Shared environmental factors were most pronounced for conduct disorder and adult antisocial behavior. No clear internalizing/externalizing structure was seen for the unique environmental common factors. We then fit models to 5 internalizing syndromes. The full model, which could also be constrained to equality in men and women, revealed one genetic factor loading most heavily on major depression and generalized anxiety disorder and another loading most strongly on animal and situational phobia. CONCLUSIONS: The underlying structure of the genetic and environmental risk factors for the common psychiatric and drug abuse disorders in men and women is very similar. Genetic risk factors predispose to 2 broad groups of internalizing and externalizing disorders. Within the internalizing disorders, 2 genetic factors are seen that predispose to disorders dominated by anxious-misery and fear. Substance use disorders have disorder-specific genetic risks. The externalizing disorders of conduct disorder and adult antisocial behavior are significantly influenced by the shared environment. The pattern of lifetime comorbidity of common psychiatric and substance use disorders results largely from the effects of genetic risk factors.},
  affiliation = {Virginia Institute for Psychiatry and Behavioral Genetics and the Department of Psychiatry, Medical College of Virginia, Virginia Commonwealth University, Richmond 23298-0126, USA.},
  number = {9},
  pages = {929--37},
  volume = {60},
  year = {2003},
  month = {Sep},
  language = {eng},
  keywords = {Genetic Predisposition to Disease, Phenotype, Middle Aged, Sex Factors, Diseases in Twins, Social Environment, Research Design, Mental Disorders, Risk Factors, Female, Models: Statistical, Humans, Prevalence, Substance-Related Disorders, Multivariate Analysis, Male, Comorbidity, Adult, Models: Genetic},
  date-added = {2010-01-13 15:00:30 +0100},
  date-modified = {2010-01-13 15:00:30 +0100},
  doi = {10.1001/archpsyc.60.9.929},
  pii = {60/9/929},
  pmid = {12963675},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Kendler-2003-Arch%20Gen%20Psychiatry_The%20structure%20of%20gen.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2903},
  rating = {0}
}
@article{Sugiura:2000p12150,
  author = {M Sugiura and R Kawashima and M Nakagawa and K Okada and T Sato and R Goto and K Sato and S Ono and T Schormann and K Zilles and H Fukuda},
  journal = {Neuroimage},
  title = {Correlation between human personality and neural activity in cerebral cortex},
  abstract = {Personality traits are a variance of behavioral patterns among individuals and may reflect a variance of brain activity, but their neurobiological explanation is still a matter of debate. Cloninger proposed three dimensions of personality traits, each of which has strong correlation with activity in a specific central monoaminergic system. Although this theory has been supported by physiological and genetic studies, it is still unclear how these personality parameters are correlated with the activity of the cortical networks which control human behavior. Here we measured the regional cerebral blood flow (rCBF) at rest in 30 normal volunteers who completed the personality inventory of Cloninger. Voxel-by-voxel analysis was employed to identify cortical regions where the rCBF showed significant correlation with any of the three personality parameters. Statistically significant correlation was observed in several paralimbic and neocortical regions and was consistent with the assumed monoaminergic influence on neural activity and the distribution of its projections, in each personality dimension. The results suggest that activity in a variety of cortical regions is associated with human personality traits and lend support to Cloninger's theory concerning central monoaminergic influence on human personality traits.},
  affiliation = {Department of Nuclear Medicine and Radiology, Institute of Development, Aging, and Cancer, Tohoku University, 4-1 Seiryomachi, Aoba-ku, Sendai, 980-8575, Japan.},
  number = {5 Pt 1},
  pages = {541--6},
  volume = {11},
  year = {2000},
  month = {May},
  language = {eng},
  keywords = {Cerebral Cortex, Humans, Male, Tomography: Emission-Computed: Single-Photon, Neural Pathways, Rest, Adult, Middle Aged, Personality, Reference Values, Female, Cerebrovascular Circulation},
  date-added = {2010-05-30 10:36:04 +0200},
  date-modified = {2010-05-30 10:36:18 +0200},
  doi = {10.1006/nimg.2000.0564},
  pii = {S1053-8119(00)90564-0},
  pmid = {10806039},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Sugiura-2000-Neuroimage_Correlation%20between.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12150},
  rating = {4}
}
@article{Dennis:2008p11570,
  author = {S Dennis and M D Lee and A Kinnell},
  journal = {Journal of Memory and Language},
  title = {Bayesian analysis of recognition memory: The case of the list-length effect},
  abstract = {Recognition memory experiments are an important source of empirical constraints for the- ories of memory. Unfortunately, standard methods for analyzing recognition memory data have problems that are often severe enough to prevent clear answers being obtained. A key example is whether longer lists lead to poorer recognition performance. The presence or absence of such a list-length effect is a critical test of competing item- and context-noise based theories of interference and bares on whether recognition involves ``recall-like'' com- ponents as dual process theories would contend. However, the issue has remained unre- solved, in part, because of the weaknesses of the standard analysis. In this paper, we develop a Bayesian method of analysis and apply it to new data on the list-length effect. The analysis allows us to find positive evidence in favor of a null list-length effect as pre- dicted by context noise models. The data also illustrate the importance of the contextual reinstatement process on recognition performance and show how previous work demon- strating a list-length effect may have been contaminated by reinstatement confounds. By contrasting our new method against the standard approach we highlight the advantages of the Bayesian framework when inferring the values of psychologically meaningful vari- ables, and in choosing between models representing different theoretical assumptions about memory.},
  pages = {361--376},
  volume = {59},
  year = {2008},
  date-added = {2010-05-01 17:38:35 +0200},
  date-modified = {2010-05-01 17:39:18 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Dennis-2008-Journal%20of%20Memory%20and%20Language_Bayesian%20analysis%20of.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11570},
  rating = {0}
}
@article{Wray:2010p6648,
  author = {Naomi R Wray and Jian Yang and Michael E Goddard and Peter M Visscher},
  journal = {PLoS Genet},
  title = {The Genetic Interpretation of Area under the ROC Curve in Genomic Profiling},
  abstract = {Genome-wide association studies in human populations have facilitated the creation of genomic profiles which combine the effects of many associated genetic variants to predict risk of disease. The area under the receiver operator characteristic (ROC) curve is a well established measure for determining the efficacy of tests in correctly classifying diseased and non-diseased individuals. We use quantitative genetics theory to provide insight into the genetic interpretation of the area under the ROC curve (AUC) when the test classifier is a predictor of genetic risk. Even when the proportion of genetic variance explained by the test is 100%, there is a maximum value for AUC that depends on the genetic epidemiology of the disease, i.e. either the sibling recurrence risk or heritability and disease prevalence. We derive an equation relating maximum AUC to heritability and disease prevalence. The expression can be reversed to calculate the proportion of genetic variance explained given AUC, disease prevalence, and heritability. We use published estimates of disease prevalence and sibling recurrence risk for 17 complex genetic diseases to calculate the proportion of genetic variance that a test must explain to achieve AUC = 0.75; this varied from 0.10 to 0.74. We provide a genetic interpretation of AUC for use with predictors of genetic risk based on genomic profiles. We provide a strategy to estimate proportion of genetic variance explained on the liability scale from estimates of AUC, disease prevalence, and heritability (or sibling recurrence risk) available as an online calculator.},
  affiliation = {Genetic Epidemiology and Queensland Statistical Genetics, Queensland Institute of Medical Research, Brisbane, Australia.},
  number = {2},
  pages = {e1000864},
  volume = {6},
  year = {2010},
  month = {Feb},
  language = {eng},
  date-added = {2010-03-03 20:35:49 +0100},
  date-modified = {2010-03-03 20:35:49 +0100},
  doi = {10.1371/journal.pgen.1000864},
  pmid = {20195508},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Wray-2010-PLoS%20Genet_The%20Genetic%20Interpre.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6648},
  rating = {0}
}
@techreport{Antonietti:2004,
  author = {J-P Antonietti},
  journal = {Techreport},
  title = {Comment s'assurer de l'alignement d'un ensemble d'items},
  affiliation = {Institut de Math{\'e}matiques Appliqu{\'e}es},
  year = {2004},
  date-added = {2010-01-10 11:33:20 +0100},
  date-modified = {2010-07-29 20:42:07 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Antonietti-2004-Techreport_Comment%20s'assurer%20de.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2107},
  rating = {0}
}
@article{HenjeBlom:2010p12781,
  author = {Eva C Henje Blom and Eva Serlachius and Jan-Olov Larsson and Tores Theorell and Martin Ingvar},
  journal = {Health Qual Life Outcomes},
  title = {Low Sense of Coherence (SOC) is a mirror of general anxiety and persistent depressive symptoms in adolescent girls - a cross-sectional study of a clinical and a non-clinical cohort},
  abstract = {ABSTRACT: BACKGROUND: The Sense of Coherence (SOC) scale is assumed to measure a distinct salutogenic construct separated from measures of anxiety and depression. Our aim was to challenge this concept. METHOD: The SOC-scale, Beck's Depression Inventory (BDI), Beck's Anxiety Inventory (BAI), the emotional subscale of the Strengths and Difficulties Questionnaire (SDQ-em) and self-assessed health-related and physiological parameters were collected from a sample of non-clinical adolescent females (n=66, mean age 16.5 years with a range of 15.9-17.7 years) and from female psychiatric patients (n=73), mean age 16.8 years with a range of 14.5-18.4 years), with diagnoses of major depressive disorders (MDD) and anxiety disorders. RESULTS: The SOC scores showed high inverse correlations to BDI, BAI and SDQ-em. In the non-clinical sample the correlation coefficient was -0.86 to -0.73 and in the clinical sample -0.74 to -0.53 (p<0.001). Multiple regression models showed that BDI was the strongest predictor of SOC in the non-clinical (beta coefficient -0.47) and clinical sample (beta coefficient -0.52). The total degree of explanation of self-assessed anxiety and depression on the SOC variance estimated by multiple R2=0.74, adjusted R2=0.73 in the non-clinical sample and multiple R2=0.66, adjusted R2=0.65 in the clinical sample. Multivariate analyses failed to isolate SOC as a separate construct and the SOC-scale, BDI, BAI and SDQ-em showed similar patterns of correlations to self-reported and physiological health parameters in both samples. The SOC-scale was the most stable measure over six months. CONCLUSIONS: The SOC-scale did not appear to be a measure of a distinct salutogenic construct, but an inverse measure of persistent depressive symptoms and generalized social anxiety similar to the diagnostic criteria for major depressive disorder (MDD), dysthymic disorder, generalized anxiety disorder (GAD) or generalized social anxiety disorder (SAD) according to DSM-IV. These symptoms were better captured with SOC than by the specialized scales for anxiety and depression. Self-assessment scales that adequately identify MDD, dysthymic disorder, GAD and SAD need to be implemented. Comorbidity of these disorders is common in adolescent females and corresponds to a more severe symptomatology and impaired global function.},
  number = {1},
  pages = {58},
  volume = {8},
  year = {2010},
  month = {Jun},
  language = {ENG},
  date-added = {2010-06-18 20:46:17 +0200},
  date-modified = {2010-06-18 20:46:17 +0200},
  doi = {10.1186/1477-7525-8-58},
  pii = {1477-7525-8-58},
  pmid = {20537185},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Henje%20Blom-2010-Health%20and%20Quality%20of%20Life%20Outcomes_Low%20Sense%20of%20Coheren-1.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12781},
  rating = {0}
}
@article{Sugiyama:2008p14223,
  author = {M Sugiyama and N Rubens},
  title = {Active Learning with Model Selection in Linear Regression},
  abstract = {Optimally designing the location of training input points (active learning) and choosing the best model (model selection) are two important components of su- pervised learning and have been studied extensively. However, these two issues seem to have been investi- gated separately as two independent problems. If train- ing input points and models are simultaneously opti- mized, the generalization performance would be further improved. In this paper, we propose a new approach called ensemble active learning for solving the problems of active learning and model selection at the same time. We demonstrate by numerical experiments that the pro- posed method compares favorably with alternative ap- proaches such as iteratively performing active learning and model selection in a sequential manner.},
  year = {2008},
  date-added = {2010-08-22 21:06:45 +0200},
  date-modified = {2010-08-22 21:07:49 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Sugiyama-2008-_Active%20Learning%20with.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p14223},
  rating = {0}
}
@article{Tomer:2008p10524,
  author = {Rachel Tomer and Rita Z Goldstein and Gene-Jack Wang and Christopher Wong and Nora D Volkow},
  journal = {Biol Psychol},
  title = {Incentive motivation is associated with striatal dopamine asymmetry},
  abstract = {Dopamine plays an important role in modulating incentive motivation, expressed behaviorally as approach behavior. EEG studies report association between approach behavior and asymmetric pattern of activation in anterior cortical regions (as measured by the inverse of EEG alpha power). Therefore, individual differences in incentive motivation may reflect asymmetries in dopaminergic systems. We examined this hypothesis by studying the relationship between self-reported degree of incentive motivation, and asymmetry of D2 receptor availability in healthy volunteers. Nineteen healthy participants were studied with positron emission tomography (PET) and [11C]raclopride to assess the availability of dopamine D2 receptors in left and right striatum. Incentive motivation was assessed by the Achievement scale of the Multidimensional Personality Questionnaire. The Achievement score was negatively correlated with the Asymmetry Index ([R-L]/[R+L]) of D2 receptor availability (r=-.721, p=.001), suggesting that greater positive incentive motivation is associated with higher receptor availability in the left relative to the right hemisphere.},
  affiliation = {Department of Psychology {\&} Brain and Behavior Center, University of Haifa, Mount Carmel 31905, Israel. rtomer@psy.haifa.ac.il},
  number = {1},
  pages = {98--101},
  volume = {77},
  year = {2008},
  month = {Jan},
  language = {eng},
  keywords = {Positron-Emission Tomography, Image Processing: Computer-Assisted, Adult, Individuality, Neostriatum, Functional Laterality, Humans, Motivation, Receptors: Dopamine D3, Dopamine Plasma Membrane Transport Proteins, Middle Aged, Synaptic Transmission, Dopamine Antagonists, Raclopride, Male, Receptors: Dopamine D2, Female, Dopamine, Parkinson Disease, Aged},
  date-added = {2010-04-07 11:22:30 +0200},
  date-modified = {2010-04-07 11:22:30 +0200},
  doi = {10.1016/j.biopsycho.2007.08.001},
  pii = {S0301-0511(07)00125-1},
  pmid = {17868972},
  url = {http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6T4T-4PF1WKH-1&_user=2432700&_coverDate=01%252F31%252F2008&_rdoc=1&_fmt=high&_orig=search&_sort=d&_docanchor=&view=c&_acct=C000057263&_version=1&_urlVersion=0&_userid=2432700&md5=772e07a54bc39980cdc8d7aadfb351ad},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Tomer-2008-Biol%20Psychol_Incentive%20motivation.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p10524},
  rating = {0}
}
@article{Ginkel:2007,
  author = {Joost R van Ginkel and L Andries van der Ark and Klaas Sijtsma and Jeroen K Vermunt},
  journal = {Computational Statistics},
  title = {Two-way imputation: A bayesian method for estimating missing scores in tests and questionnaires, and an accurate approximation},
  pages = {4013--4027},
  volume = {51},
  year = {2007},
  date-added = {2010-01-10 11:33:23 +0100},
  date-modified = {2010-07-29 20:42:55 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Ginkel-2007-Computational%20Statistics_Two-way%20imputation.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1856},
  rating = {0}
}
@article{Eiser:2001p8499,
  author = {C Eiser and R Morse},
  journal = {Health Technol Assess},
  title = {Quality-of-life measures in chronic diseases of childhood},
  abstract = {SCOPE OF THE REPORT: This report is concerned with the evaluation of measures broadly designed to measure quality of life (QoL) in children and adolescents, either by self-report or proxy raters. Four research questions were identified: (1) To what extent are adult measures used in the evaluation of healthcare interventions in children? (2) How appropriate are adult measures for use with children? (3) To what extent do child self-reports correspond with assessments made by parents and carers? (4) How feasible and reliable are proxy measures of QoL in different disease contexts? OBJECTIVES: (1) To review the state of the art with regard to measurement of QoL for children. (2) To make recommendations regarding the value of currently available measures for different purposes. (3) To identify further research needs. METHOD: Electronic databases were searched for the period 1980-July 1999 for articles relating to measures of QoL, health status or well-being in children (under 18 years) with chronic disease. Handsearching of relevant journals and cross-referencing with reference lists in identified articles was also carried out. Key workers in the field were contacted for additional information, and the Internet was searched for relevant websites. RESULTS: Forty-three measures were identified (19 generic and 24 disease-specific). Sixteen measures allowed for completion by children and parent/caregiver; seven only allowed for completion by a proxy, and the remainder (n = 17) allowed only for child completion. The measures were described as QoL (n = 30), health status, (n = 2), perception of illness (n = 1), life satisfaction (n = 1) and quality of well-being (n = 1). RESULTS - TO WHAT EXTENT ARE ADULT MEASURES USED IN THE EVALUATION OF HEALTHCARE INTERVENTIONS IN CHILDREN?: Three studies were identified where adult measures were used with very few changes made for children. In 11 studies involving nine separate measures of QoL, adult measures were used as a model for work with children. RESULTS - HOW APPROPRIATE ARE ADULT MEASURES FOR USE WITH CHILDREN?: Adult measures may fail to tap the specific aspects of QoL that are important to the child. Measures based on adult work impose considerable response burden for children, in terms of length, reading skills and response scale. Wording and format of adult measures may need to be modified to account for children's cognitive and language skills. More basic research is needed to determine the level of response burden that children of different ages can manage. Assessments of difficulty (e.g. reading age) need to be routinely included with information about new measures. RESULTS - TO WHAT EXTENT DO CHILD SELF-REPORTS CORRESPOND WITH ASSESSMENTS MADE BY PARENTS AND CARERS?: Fourteen studies were identified in which concor-dance between child and parent was investigated, often as part of the development of a new measure. There was some evidence for greater concordance between child and parent for physical functioning compared with social and emotional domains, but greater heterogeneity in the latter measures may contribute to inconsistent results. There was no simple relationship between concordance and moderating variables such as age, gender and illness, but this conclusion was addressed only very rarely. RESULTS - HOW FEASIBLE AND RELIABLE ARE PROXY MEASURES OF QOL IN DIFFERENT DISEASE CONTEXTS?: Only five papers fulfilled the review criteria. Evaluation is difficult because authors fail to justify their choice of measures, and do not report critical information such as completion rates or missing data. Use of existing measures can potentially eliminate the time and expense required to develop a comprehensive measure of QoL, but a full battery of standardised tests may be expensive in terms of time for administration and scoring. In addition, battery measures tend to be lengthy and therefore demanding for sick patients. They are not recommended for work with children. RECOMMENDATIONS FOR RESEARCH - MINIMUM CRITERIA FOR NEW MEASURES: A set of procedures needs to be established for the development of new measures. These need to draw on the experience gained in development of child and adult measures to date. Basic research to enhance understanding of how children interpret questions in QoL measures is recommended. We need to understand the differences in meaning of items between children and adults, and between children of different ages. Some attempt to develop measures for children of 6 years or more have been reported, and these should be further developed. (ABSTRACT TRUNCATED)},
  affiliation = {Department of Pyschology, University of Sheffield, UK.},
  number = {4},
  pages = {1--157},
  volume = {5},
  year = {2001},
  month = {Jan},
  language = {eng},
  keywords = {Self Assessment (Psychology), Quality of Life, Adolescent, Female, Chronic Disease, Child: Preschool, Male, Health Status Indicators, Health Services Research, Child, Disabled Children, Humans, Great Britain},
  date-added = {2010-03-21 18:01:02 +0100},
  date-modified = {2010-07-29 19:28:35 +0200},
  pmid = {11262421},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8499},
  rating = {0}
}
@article{Velez:2010p7654,
  author = {Lady Velez and Greta Sokoloff and Klaus A Miczek and Abraham A Palmer and Stephanie C Dulawa},
  journal = {Behav Genet},
  title = {Differences in aggressive behavior and DNA copy number variants between BALB/cJ and BALB/cByJ substrains},
  abstract = {Some BALB/c substrains exhibit different levels of aggression. We compared aggression levels between male BALB/cJ and BALB/cByJ substrains using the resident intruder paradigm. These substrains were also assessed in other tests of emotionality and information processing including the open field, forced swim, fear conditioning, and prepulse inhibition tests. We also evaluated single nucleotide polymorphisms (SNPs) previously reported between these BALB/c substrains. Finally, we compared BALB/cJ and BALB/cByJ mice for genomic deletions or duplications, collectively termed copy number variants (CNVs), to identify candidate genes that might underlie the observed behavioral differences. BALB/cJ mice showed substantially higher aggression levels than BALB/cByJ mice; however, only minor differences in other behaviors were observed. None of the previously reported SNPs were verified. Eleven CNV regions were identified between the two BALB/c substrains. Our findings identify a robust difference in aggressive behavior between BALB/cJ and BALB/cByJ substrains, which could be the result of the identified CNVs.},
  affiliation = {Department of Psychiatry and Behavioral Neuroscience, University of Chicago, 924 East 57th Street, Room R018, MC 3077, Chicago, IL, 60637, USA.},
  number = {2},
  pages = {201--10},
  volume = {40},
  year = {2010},
  month = {Mar},
  language = {eng},
  date-added = {2010-03-15 23:24:23 +0100},
  date-modified = {2010-07-29 20:09:06 +0200},
  doi = {10.1007/s10519-009-9325-5},
  pmid = {20033273},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Velez-2010-Behav%20Genet_Differences%20in%20aggre.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7654},
  rating = {0}
}
@article{Schmier:1998p8811,
  author = {J K Schmier and K S Chan and N K Leidy},
  journal = {J Asthma},
  title = {The impact of asthma on health-related quality of life},
  abstract = {Although a substantial body of epidemiological and economic literature on asthma exists, relatively little is known about the impact of asthma on health-related quality of life (HRQL). The purpose of this review was to synthesize results from recent studies, profile the factors influencing HRQL in asthmatics, discuss the impact of treatment on HRQL outcomes, and offer recommendations for further research. The results of this review support the premise that asthma can adversely affect the physical, psychological, and social domains of HRQL. Published data suggest that females, those from lower socioeconomic groups, and ethnic minorities experience poorer quality of life as a result of their asthma symptoms. Results of published clinical trials indicate treatment regimens can have a significant impact on HRQL outcomes. Pharmacological interventions appear to effect change primarily in the physical domain and behavioral interventions lead to improvements in both physical and psychosocial domains. Future research should focus on precise a priori delineation of research hypotheses, including the selection of primary and secondary endpoints, the clarification and consistent application of criteria for defining asthma severity, thoughtful selection of HRQL instruments appropriate for the research hypotheses and target population, and careful delineation of clinically meaningful change scores of asthma-specific outcome measures.},
  affiliation = {Center for Health Outcomes Research, MEDTAP International Inc., Bethesda, Maryland 20814, USA. schmier@medtap.com},
  number = {7},
  pages = {585--97},
  volume = {35},
  year = {1998},
  month = {Jan},
  language = {eng},
  keywords = {Quality of Life, Humans, Health Status, Asthma, Sickness Impact Profile},
  date-added = {2010-03-22 12:11:34 +0100},
  date-modified = {2010-03-22 12:11:35 +0100},
  pmid = {9777885},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8811},
  rating = {0}
}
@article{Suykens:2010p14293,
  author = {J A K Suykens and C Alzate and K Pelckmans},
  journal = {Statistics Surveys},
  title = {Primal and dual model representations in kernel-based learning},
  abstract = {This paper discusses the role of primal and (Lagrange) dual model representations in problems of supervised and unsupervised learning. The specification of the estimation problem is conceived at the primal level as a constrained optimization problem. The constraints relate to the model which is expressed in terms of the feature map. From the conditions for optimality one jointly finds the optimal model representation and the model estimate. At the dual level the model is expressed in terms of a positive definite kernel function, which is characteristic for a support vector machine methodology. It is discussed how least squares support vector machines are playing a central role as core models across problems of regression, classification, principal component analysis, spectral clustering, canonical correlation analysis, dimensionality reduction and data visualization.},
  pages = {148--183},
  volume = {4},
  year = {2010},
  date-added = {2010-08-24 14:08:53 +0200},
  date-modified = {2010-08-24 14:11:11 +0200},
  doi = {10.1214/09-SS052},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Suykens-2010-Statistics%20Surveys_Primal%20and%20dual%20mode.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p14293},
  rating = {0}
}
@article{Chao:2009p11826,
  author = {Herta H A Chao and Xi Luo and Jeremy L K Chang and Chiang-Shan R Li},
  journal = {BMC Neurosci},
  title = {Activation of the pre-supplementary motor area but not inferior prefrontal cortex in association with short stop signal reaction time--an intra-subject analysis},
  abstract = {BACKGROUND: Our previous work described the neural processes of motor response inhibition during a stop signal task (SST). Employing the race model, we computed the stop signal reaction time (SSRT) to index individuals' ability in inhibitory control. The pre-supplementary motor area (preSMA), which shows greater activity in individuals with short as compared to those with long SSRT, plays a role in mediating response inhibition. In contrast, the right inferior prefrontal cortex (rIFC) showed greater activity during stop success as compared to stop error. Here we further pursued this functional differentiation of preSMA and rIFC on the basis of an intra-subject approach. RESULTS: Of 65 subjects who participated in four sessions of the SST, we identified 30 individuals who showed a difference in SSRT but were identical in other aspects of stop signal performance between the first ("early") and last two ("late") sessions. By comparing regional brain activation between the two sessions, we confirmed greater preSMA but not rIFC activity during short as compared to long SSRT session within individuals. Furthermore, putamen, anterior cerebellum and middle/posterior cingulate cortex also showed greater activity in association with short SSRT. CONCLUSION: These results are consistent with a role of medial prefrontal cortex in controlled action and inferior frontal cortex in orienting attention. We discussed these findings with respect to the process of attentional monitoring and inhibitory motor control during stop signal inhibition.},
  affiliation = {Department of Psychiatry, Yale University School of Medicine, New Haven, CT 06519, USA. herta.chao@yale.edu},
  pages = {75},
  volume = {10},
  year = {2009},
  month = {Jan},
  language = {eng},
  keywords = {Magnetic Resonance Imaging, Adult, Neuropsychological Tests, Female, Motor Cortex, Prefrontal Cortex, Reaction Time, Middle Aged, Humans, Male},
  date-added = {2010-05-23 10:46:56 +0200},
  date-modified = {2010-05-23 10:46:57 +0200},
  doi = {10.1186/1471-2202-10-75},
  pii = {1471-2202-10-75},
  pmid = {19602259},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Chao-2009-BMC%20Neurosci_Activation%20of%20the%20pr.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11826},
  rating = {0}
}
@article{Hays:2000,
  author = {R D Hays and L S Morales and S P Reise},
  journal = {Med Care},
  title = {Item response theory and health outcomes measurement in the 21st century.},
  abstract = {Item response theory (IRT) has a number of potential advantages over classical test theory in assessing self-reported health outcomes. IRT models yield invariant item and latent trait estimates (within a linear transformation), standard errors conditional on trait level, and trait estimates anchored to item content. IRT also facilitates evaluation of differential item functioning, inclusion of items with different response formats in the same scale, and assessment of person fit and is ideally suited for implementing computer adaptive testing. Finally, IRT methods can be helpful in developing better health outcome measures and in assessing change over time. These issues are reviewed, along with a discussion of some of the methodological and practical challenges in applying IRT methods.},
  affiliation = {UCLA, School of Medicine, Los Angeles, California, USA. hays\char64rand.org},
  number = {9 Suppl},
  pages = {II28--42},
  volume = {38},
  year = {2000},
  month = {Sep},
  language = {eng},
  date-added = {2010-01-03 19:38:21 +0100},
  date-modified = {2010-07-29 19:39:29 +0200},
  pmid = {10982088},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Hays-2000-Med%20Care_Item%20response%20theory.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1181},
  read = {Yes},
  rating = {0}
}
@misc{Hedeker:2000,
  author = {D Hedeker and R J Mermelstein and B R Flay},
  journal = {Miscellaneous},
  title = {Application of item response theory models for longitudinal data},
  year = {2000},
  date-added = {2010-01-10 11:33:22 +0100},
  date-modified = {2010-01-10 11:33:25 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Hedeker-2000-Miscellaneous_Application%20of%20item.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2171},
  rating = {0}
}
@article{Fitzpatrick:2004p5881,
  author = {R Fitzpatrick and J M Norquist and C Jenkinson and B C Reeves and R W Morris and D W Murray and P J Gregg},
  journal = {Qual Life Res},
  title = {A comparison of Rasch with Likert scoring to discriminate between patients' evaluations of total hip replacement surgery},
  abstract = {The purpose of this study was to examine whether there are advantages in terms of outcome assessment of using Rasch methods of scoring the 12-item Oxford Hip Score (OHS) questionnaire over conventionally Likert scores. As part of a prospective cohort study of total hip replacements in five former regions of England the OHS was sent to patients pre-operatively, at 3 months and 1 year post-operatively. Post-operative data was collected on over 5000 cases. Based on the level of satisfaction with surgery, patients were divided into satisfied and dissatisfied. Analyses were performed to test the relative precision (RP) of Rasch scoring vs. conventionally Likert scores in discriminating the groups experiencing different level of satisfaction. Considerable gains in precision were achieved with Rasch scoring methods when groups were compared 3 and 12 months post-operatively. The results from the current study suggest that in some situations there may be substantial gains in measuring health related outcomes using Rasch-based scoring methods.},
  affiliation = {Department of Public Health, Institute of Health Sciences, University of Oxford, Headington, Oxford, UK. raymond.fitzpatrick@nuffield.oxford.ac.uk},
  number = {2},
  pages = {331--8},
  volume = {13},
  year = {2004},
  month = {Mar},
  language = {eng},
  keywords = {Quality of Life, Activities of Daily Living, Patient Satisfaction, Outcome Assessment (Health Care), Arthroplasty: Replacement: Hip, England, Follow-Up Studies, Pain Measurement, Humans, Prospective Studies, Questionnaires, Psychometrics},
  date-added = {2010-02-17 15:07:15 +0100},
  date-modified = {2010-07-29 19:48:28 +0200},
  pmid = {15085905},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Fitzpatrick-2004-Qual%20Life%20Res_A%20comparison%20of%20Rasc.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5881},
  rating = {4}
}
@article{Symington:2002p7326,
  author = {Amanda Symington and Janet M Pinelli},
  journal = {Adv Neonatal Care},
  title = {Distilling the evidence on developmental care: a systematic review},
  abstract = {PURPOSE: To determine whether developmental care interventions reduce neurodevelopmental delay, poor weight gain, length of hospital stay, length of mechanical ventilation, physiologic stress, and other clinically relevant adverse outcomes in preterm infants. SUBJECTS: Infants born at less than 37 weeks postconceptional age. This review consisted of 31 studies in 4 categories of developmental care interventions, 19 subgroups, and multiple clinical outcomes. The total sample sizes in the individual studies ranged from 16 to 259; the sample size in 18 of the studies was less than 50. DESIGN AND METHODS: A systematic review, based on the Cochrane Collaboration format, of all randomized trials in which elements of developmental care are compared with routine nursery care and that measured clinically relevant outcomes. Searches were made of MEDLINE from 1966 to July 2000. Additional databases were also searched electronically. Reference lists and bibliographies of relevant articles were hand-searched. Experts in the field were contracted. If more than one study in an outcome category existed, a meta-analysis was conducted. PRIMARY OUTCOME MEASURES: Outcome measures included the following: length of hospital stay, weight at discharge, neurodevelopment, physiologic parameters, feeding growth, sleep/wake states, age at discharge, neonatal outcomes, cost of hospital stay, and death. PRINCIPAL RESULTS: Developmental care interventions showed some benefit to preterm infants with respect to improved short-term growth outcomes, decreased respiratory support, decreased incidence of moderate to severe chronic lung disease, decreased length and cost of hospital stay, and improved neurodevelopmental outcomes to 24 months corrected age. These findings were based on 2 or 3 small trials for each outcome. Although a number of other benefits were shown, those results were from single studies with small sample sizes. The lack of blinding of the assessors of the outcome variables was a significant methodological flaw in half of the studies. The costs of the interventions and personnel were not considered in any of the studies. CONCLUSIONS: In most studies, the inclusion of multiple interventions made the determination of the effect of any single intervention difficult. Although there is evidence of some benefit of developmental care interventions overall and no major harmful effects reported, there were a large number of outcomes for which no or conflicting effects were shown. The single trials that did show a significant effect of an intervention on a major clinical outcome were based on small sample sizes, and the findings often were not supported in other small trials. Before a clear direction for practice can be supported, evidence showing more consistent effects of developmental care interventions on important short- and long-term clinical outcomes is needed. The economic impact of the implementation and maintenance of developmental care practices should be considered by individual institutions.},
  affiliation = {Children's Hospital, Hamilton Health Sciences Corporation, 4A Neo, 1200 Main St West, Hamilton, ON, Canada L8N 3Z5. symington@hhsc.ca},
  number = {4},
  pages = {198--221},
  volume = {2},
  year = {2002},
  month = {Aug},
  language = {eng},
  keywords = {Neonatal Nursing, Nursing Assessment, Male, Infant: Very Low Birth Weight, Infant: Newborn, Follow-Up Studies, Nurse-Patient Relations, Developmental Disabilities, Nurse's Role, Sensitivity and Specificity, Total Quality Management, Needs Assessment, Length of Stay, Infant: Premature, Female, Intensive Care Units: Neonatal, Humans, Infant Care, Birth Weight, Child Development},
  date-added = {2010-03-10 20:21:54 +0100},
  date-modified = {2010-03-10 20:21:54 +0100},
  pmid = {12881934},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7326},
  rating = {0}
}
@article{Giannakopoulos:2009p8348,
  author = {George Giannakopoulos and Christine Dimitrakaki and Xanthi Pedeli and Gerasimos Kolaitis and Vasiliki Rotsika and Ulricke Ravens-Sieberer and Yannis Tountas},
  journal = {Health Qual Life Outcomes},
  title = {Adolescents' wellbeing and functioning: relationships with parents' subjective general physical and mental health},
  abstract = {BACKGROUND: This study aimed at examining the relationship between parental subjective health status and adolescents' health-related quality of life (HRQoL) as well as the role of gender, socioeconomic status, presence of chronic health care needs and social support on the above interaction. METHODS: Questionnaires were administered to a Greek nation-wide random sample of adolescents (N = 1,194) aged 11-18 years and their parents (N = 973) in 2003. Adolescents' and parents' status was assessed, together with reports of socio-economic status and level of social support. Various statistical tests were used to determine the extent to which these variables were related to each other. RESULTS AND DISCUSSION: Parental subjective mental health status was significantly correlated with adolescents' better physical and psychological wellbeing, moods and emotions, parent-child relationships, school environment and financial resources. Parental subjective physical health status was strongly associated with more positive adolescents' self-perception. Adolescents' male gender, younger age, absence of chronic health care needs, high social support, and higher family income were positively associated with better HRQoL. CONCLUSIONS: This study reinforces the importance of parental subjective health status, along with other variables, as a significant factor for the adolescents' HRQoL.},
  affiliation = {Centre for Health Services Research, Department of Hygiene and Epidemiology, University of Athens Medical School, 25 Alexandroupoleos Street, 11527 Athens, Greece.},
  pages = {100},
  volume = {7},
  year = {2009},
  month = {Jan},
  language = {eng},
  keywords = {Adolescent Psychology, Male, Quality of Life, Qualitative Research, Social Environment, Chronic Disease, Female, Social Support, Health Status, Parents, Humans, Child, Adolescent, Greece, Questionnaires, Mental Health, Social Class, Multivariate Analysis},
  date-added = {2010-03-21 12:50:39 +0100},
  date-modified = {2010-03-21 12:50:52 +0100},
  doi = {10.1186/1477-7525-7-100},
  pii = {1477-7525-7-100},
  pmid = {20003508},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Giannakopoulos-2009-Health%20and%20Quality%20of%20Life%20Outcomes_Adolescents'%20wellbei.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8348},
  rating = {4}
}
@article{Dragomir:2009p11807,
  author = {Alice Dragomir and Robert C{\^o}t{\'e} and Michel White and Lyne Lalonde and Lucie Blais and Anick B{\'e}rard and Sylvie Perreault},
  journal = {Value Health},
  title = {Relationship between Adherence Level to Statins, Clinical Issues and Health-Care Costs in Real-Life Clinical Setting},
  abstract = {ABSTRACT Objective: Statins have been shown to reduce the risk of major cardiovascular disease. We recognize that there is a major gap between the use of statins in actual practice and treatment guidelines for dyslipidemia. Low adherence to statins may have a significant impact on clinical issues and health-care costs. The objective is to evaluate the impact of low adherence to statins on clinical issues and direct health-care costs. Methods: A cohort of 55,134 patients newly treated with statins was reconstructed from the R{\'e}gie de l'Assurance Maladie du Qu{\'e}bec and Med-Echo databases. Subjects included were aged between 45 and 85, initially free of cardiovascular disease, newly treated with statins between 1999 and 2002, and followed-up for a minimum of 3 years. Adherence to statins was measured in terms of the proportion of days' supply of medication dispensed over a defined period, and categorized as >/=80% or <80%. The adjusted odds ratio (OR) of cardiovascular events between the two adherence groups was estimated using a polytomous logistic analysis. The mean costs of direct health-care services were evaluated. A two-part model was applied for hospitalization costs. Results: The mean high adherence level to statins was around to 96% during follow-up; and this value was at 42% for the low adherence level. The patients with low adherence to statins were more likely to have coronary artery disease (OR 1.07; 95% confidence interval [CI], 1.01-1.13), cerebrovascular disease (OR 1.13; 95% CI 1.03-1.25), and chronic heart failure within 3-year period of follow-up (OR 1.13; 95% CI 1.01-1.26). Low adherence to statins was also associated with an increased risk of hospitalization by 4% (OR 1.04; 95% CI 1.01-1.09). Among patients who were hospitalized, low adherence to statins was significantly associated with increase of hospitalization costs by approximately {\$}1060/patient for a 3-year period. Conclusion: Low adherence to statins was correlated with a higher risk of cardiovascular disease, hospitalization rate, and hospitalization costs. An increased level of adherence to statins agents should provide a better health status for individuals and a net economic gain.},
  affiliation = {Faculty of Pharmacy, University of Montreal, Montreal, Quebec, Canada.},
  pages = {},
  year = {2009},
  month = {Aug},
  language = {ENG},
  date-added = {2010-05-23 10:43:08 +0200},
  date-modified = {2010-05-23 10:43:08 +0200},
  doi = {10.1111/j.1524-4733.2009.00583.x},
  pii = {VHE583},
  pmid = {19695008},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Dragomir-2009-Value%20Health_Relationship%20between.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11807},
  rating = {0}
}
@article{DAngiulli:2009p7011,
  author = {Amedeo D'Angiulli and William Warburton and Susan Dahinten and Clyde Hertzman},
  journal = {PLoS ONE},
  title = {Population-level associations between preschool vulnerability and grade-four basic skills},
  abstract = {BACKGROUND: This is a predictive validity study examining the extent to which developmental vulnerability at kindergarten entry (as measured by the Early Development Instrument, EDI) is associated with children's basic skills in 4th grade (as measured by the Foundation Skills Assessment, FSA). METHODOLOGY/PRINCIPAL FINDINGS: Relative risk analysis was performed on a large database linking individual-level EDI ratings to the scores the same children obtained on a provincial assessment of academic skills (FSA--Foundation Skills Assessment) four years later. We found that early vulnerability in kindergarten is associated with the basic skills that underlie populations of children's academic achievement in reading, writing and math, indicating that the Early Development Instrument permits to predict achievement-related skills four years in advance. CONCLUSIONS/SIGNIFICANCE: The EDI can be used to predict children's educational trends at the population level and can help select early prevention and intervention programs targeting pre-school populations at minimum cost.},
  affiliation = {Institute of Interdisciplinary Studies, Carleton University, Ottawa, Canada. amedeo@connect.carleton.ca},
  number = {11},
  pages = {e7692},
  volume = {4},
  year = {2009},
  month = {Jan},
  language = {eng},
  date-added = {2010-03-06 19:46:51 +0100},
  date-modified = {2010-03-06 19:46:51 +0100},
  doi = {10.1371/journal.pone.0007692},
  pmid = {19946366},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/D'Angiulli-2009-PLoS%20ONE_Population-level%20ass.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7011},
  rating = {0}
}
@article{Brock:2008p12026,
  author = {G Brock and V Pihur and S Datta and S Datta},
  journal = {Journal of Statistical Software},
  title = {clValid: An R Package for Cluster Validation},
  abstract = {The R package clValid contains functions for validating the results of a clustering analysis. There are three main types of cluster validation measures available, ``inter- nal'', ``stability'', and ``biological''. The user can choose from nine clustering algorithms in existing R packages, including hierarchical, K-means, self-organizing maps (SOM), and model-based clustering. In addition, we provide a function to perform the self-organizing tree algorithm (SOTA) method of clustering. Any combination of validation measures and clustering methods can be requested in a single function call. This allows the user to si- multaneously evaluate several clustering algorithms while varying the number of clusters, to help determine the most appropriate method and number of clusters for the dataset of interest. Additionally, the package can automatically make use of the biological informa- tion contained in the Gene Ontology (GO) database to calculate the biological validation measures, via the annotation packages available in Bioconductor. The function returns an object of S4 class ``clValid'', which has summary, plot, print, and additional methods which allow the user to display the optimal validation scores and extract clustering results.},
  number = {4},
  volume = {25},
  year = {2008},
  date-added = {2010-05-24 10:17:32 +0200},
  date-modified = {2010-05-24 10:18:21 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Brock-2008-Journal%20of%20Statistical%20Software_clValid%20An%20R%20Packag.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12026},
  rating = {5}
}
@article{Saunders:1993,
  author = {PA Saunders and JRM Copeland and ME Dewey and C Gilmore and BA Larkin and H Phaterpekar and A Scott},
  journal = {Int J Epidemiol},
  title = {The prevalence of dementia, depression and neurosis in later life: The Liverpool MRC-ALPHA study},
  abstract = {Prevalence rates for psychiatric disorders in the elderly are presented from the initial cross-sectional stage of a longitudinal community study of the incidence of dementia in the city of Liverpool. Together with five other centres in the UK the MRC-ALPHA project forms part of the MRC multicentre incidence study of dementia and cognitive decline. An age- and sex-stratified random sample of 5222 subjects aged 65 was interviewed at home using the Geriatric Mental State-AGECAT package to provide computer diagnoses. The overall age-standardized prevalence rates for organic disorder (4.7%) depressive illness (10.0%) and the neuroses (2.5%) are consistent with levels found in previous smaller studies that have used MS-AGECAT. Each of these diagnoses is more common in females than males. A rise in organic disorder with age is confirmed as continuing into the oldest age groups for both sexes. An apparent decline with age observed for depression and neurosis diagnoses disappears when organic cases are excluded from the analysis.},
  number = {5},
  pages = {838--847},
  volume = {22},
  year = {1993},
  date-added = {2010-01-03 19:36:10 +0100},
  date-modified = {2010-01-03 19:36:10 +0100},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1099},
  rating = {0}
}
@article{Bauer:2004p13728,
  author = {Daniel J Bauer and Patrick J Curran},
  journal = {Psychological Methods},
  title = {The integration of continuous and discrete latent variable models: potential problems and promising opportunities},
  abstract = {Structural equation mixture modeling (SEMM) integrates continuous and discrete latent variable models. Drawing on prior research on the relationships between continuous and discrete latent variable models, the authors identify 3 conditions that may lead to the estimation of spurious latent classes in SEMM: misspecification of the structural model, nonnormal continuous measures, and nonlinear relationships among observed and/or latent variables. When the objective of a SEMM analysis is the identification of latent classes, these conditions should be considered as alternative hypotheses and results should be interpreted cautiously. However, armed with greater knowledge about the estimation of SEMMs in practice, researchers can exploit the flexibility of the model to gain a fuller understanding of the phenomenon under study.},
  affiliation = {Department of Psychology, North Carolina State University, Raleigh, NC 27695-7801, USA. dan_bauer@ncsu.edu},
  number = {1},
  pages = {3--29},
  volume = {9},
  year = {2004},
  month = {Mar},
  language = {eng},
  keywords = {Psychology, Models: Psychological, Factor Analysis: Statistical, Humans},
  date-added = {2010-07-24 11:23:01 +0200},
  date-modified = {2010-07-24 11:23:09 +0200},
  doi = {10.1037/1082-989X.9.1.3},
  pii = {2004-12158-001},
  pmid = {15053717},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Bauer-2004-Psychological%20Methods_The%20integration%20of%20c.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13728},
  rating = {4}
}
@article{Buckby:2008p4875,
  author = {Joe A Buckby and Sue M Cotton and Elizabeth M Cosgrave and Eoin J Killackey and Alison R Yung},
  journal = {BMC Psychiatry},
  title = {A factor analytic investigation of the Tripartite model of affect in a clinical sample of young Australians},
  abstract = {BACKGROUND: The Mood and Anxiety Symptom Questionnaire (MASQ) was designed to specifically measure the Tripartite model of affect and is proposed to offer a delineation between the core components of anxiety and depression. Factor analytic data from adult clinical samples has shown mixed results; however no studies employing confirmatory factor analysis (CFA) have supported the predicted structure of distinct Depression, Anxiety and General Distress factors. The Tripartite model has not been validated in a clinical sample of older adolescents and young adults. The aim of the present study was to examine the validity of the Tripartite model using scale-level data from the MASQ and correlational and confirmatory factor analysis techniques. METHODS: 137 young people (M = 17.78, SD = 2.63) referred to a specialist mental health service for adolescents and young adults completed the MASQ and diagnostic interview. RESULTS: All MASQ scales were highly inter-correlated, with the lowest correlation between the depression- and anxiety-specific scales (r = .59). This pattern of correlations was observed for all participants rating for an Axis-I disorder but not for participants without a current disorder (r = .18). Confirmatory factor analyses were conducted to evaluate the model fit of a number of solutions. The predicted Tripartite structure was not supported. A 2-factor model demonstrated superior model fit and parsimony compared to 1- or 3-factor models. These broad factors represented Depression and Anxiety and were highly correlated (r = .88). CONCLUSION: The present data lend support to the notion that the Tripartite model does not adequately explain the relationship between anxiety and depression in all clinical populations. Indeed, in the present study this model was found to be inappropriate for a help-seeking community sample of older adolescents and young adults.},
  affiliation = {ORYGEN Youth Health Research Centre, Melbourne, Australia. jbuckby@unimelb.edu.au},
  pages = {79},
  volume = {8},
  year = {2008},
  month = {Jan},
  language = {eng},
  keywords = {Questionnaires, Female, Reproducibility of Results, Adolescent, Anxiety Disorders, Humans, Factor Analysis: Statistical, Young Adult, Affect, Depressive Disorder: Major, Male},
  date-added = {2010-02-01 20:30:54 +0100},
  date-modified = {2010-02-01 20:30:54 +0100},
  doi = {10.1186/1471-244X-8-79},
  pii = {1471-244X-8-79},
  pmid = {18799017},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4875},
  rating = {0}
}
@article{Borsboom:2008p5508,
  author = {D Borsboom and A Z Scholten},
  journal = {Theory Psychology},
  title = {The Rasch Model and Conjoint Measurement Theory from the Perspective of Psychometrics},
  abstract = {Kyngdon argues that psychometricians have erroneously claimed the Rasch model to be an instance of representational measurement, because the Rasch model does not map a bona fide empirical relational system (ERS) into a numerical relational system (NRS). While we agree that one does not automatically achieve a conjoint measurement representation upon fitting a Rasch model, we do not agree that the Rasch model could not in principle yield such a representation. In our view, whether this is possible depends on what one is prepared to accept as an empirical relational system. This is a philosophical question that extends beyond the scope of the formal struc- tures advanced in representationalism and psychometrics; a question, more- over, that is not currently settled. We examine some of the ways in which one may react to this question, and conclude that Kyngdon's argument depends on a specific, and perhaps too strong, interpretation of representa- tionalism and psychometric models.},
  number = {1},
  pages = {111--117},
  volume = {18},
  year = {2008},
  date-added = {2010-02-12 14:56:09 +0100},
  date-modified = {2010-02-12 14:57:17 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Borsboom-2008-Theory%20Psychology_The%20Rasch%20Model%20and.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5508},
  rating = {0}
}
@article{Page:2010p3633,
  author = {E B Page},
  title = {Statistical and linguistic strategies in the computer grading of essays},
  date-added = {2010-01-16 19:20:21 +0100},
  date-modified = {2010-01-16 19:20:53 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Page--_Statistical%20and%20ling.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3633},
  rating = {0}
}
@inbook{McKay:1996,
  author = {RB McKay and MJ Breslow and RL Sangster and SM Gabbard and RW Reynolds and JM Nakamoto},
  journal = {Book},
  title = {Advances in survey research},
  chapter = {Translating survey questionnaires: Lessons learned},
  pages = {93--104},
  year = {1996},
  date-added = {2010-01-03 19:34:17 +0100},
  date-modified = {2010-07-29 19:21:41 +0200},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1000},
  rating = {0}
}
@article{Lesch:2005p9138,
  author = {Klaus-Peter Lesch},
  journal = {Eur J Pharmacol},
  title = {Alcohol dependence and gene x environment interaction in emotion regulation: Is serotonin the link?},
  abstract = {Alcohol dependence is characterized by frequent, compulsive and uncontrolled consumption of alcohol associated with behavior of maladaption and destruction. It is an etiologically and clinically heterogeneous syndrome, moderately to highly heritable, and caused by interaction of genes and environment. Alcohol dependence is related to other psychiatric diseases by common neurobiological pathways, including those that modulate reward, behavioral control as well as anxiety and stress response. Alcohol induces adaptive changes in brain function providing the basis for tolerance, craving, withdrawal, and emotional disturbance. The differentiation of psychobiological traits of addictive behavior reflecting neurobiological processes is therefore of particular importance for the dissection of the complex genetic susceptibility to alcohol dependence. A central serotonin (5-HT) deficit is thought to be involved in the pathogenesis of alcohol dependence by modulating motivational behavior, neuroadaptive processes, and resulting emotional disturbance. 5-HT-related impulsive, aggressive, and suicidal behavior has been linked to a primordial personality that is susceptible to alcohol dependence. Although variations in many of the genes that encode receptors, enzymes, and transporters of the 5-HT system have been tested as risk factors for alcohol dependence, genetic analyses of 5-HT signaling in alcohol dependence have mainly been focused on the 5-HT transporter (5-HTT) gene. Due to its central role in the fine-tuning serotonergic neurotransmission, a regulatory variant of the 5-HTT, which is associated with anxiety related traits, is not only a key player in the neurobiological mechanism of gene x environment interaction in the etiology of depression, but also contributes to the risk to develop alcohol dependence with antisocial behavior and suicidality. Evidence for a modulatory effect of allelic variation of 5-HTT function on limbic circuit responses to emotional stimuli suggests that genotype-endophenotype correlations may be accessible to molecular functional imaging of the brain. These new developments have broad implications for our understanding how genetic vulnerability to alcohol dependence is manifested in the brain's response to emotional stimuli.},
  affiliation = {Department of Psychiatry and Psychotherapy, University of W{\"u}rzburg, F{\"u}chsleinstr. 15, Germany. kplesch@mail.uni-wuerzburg.de},
  number = {1-3},
  pages = {113--24},
  volume = {526},
  year = {2005},
  month = {Dec},
  language = {eng},
  keywords = {Humans, Emotions, Models: Psychological, Models: Neurological, Stress: Psychological, Genetic Variation, Serotonin Plasma Membrane Transport Proteins, Serotonin, Risk, Animals, Alcoholism},
  date-added = {2010-03-22 13:30:18 +0100},
  date-modified = {2010-03-22 13:30:18 +0100},
  doi = {10.1016/j.ejphar.2005.09.027},
  pii = {S0014-2999(05)00972-6},
  pmid = {16288736},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Lesch-2005-Eur%20J%20Pharmacol_Alcohol%20dependence%20a.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p9138},
  rating = {0}
}
@article{Hamre:2010p13427,
  author = {Harald J Hamre and Claudia M Witt and Anja Glockmann and Renatus Ziegler and Gunver S Kienle and Stefan N Willich and Helmut Kiene},
  journal = {Eur J Health Econ},
  title = {Health costs in patients treated for depression, in patients with depressive symptoms treated for another chronic disorder, and in non-depressed patients: a two-year prospective cohort study in anthroposophic outpatient settings},
  abstract = {We studied costs of healthcare and productivity loss in 487 German outpatients starting anthroposophic treatment: Group 1 was treated for depression, Group 2 had depressive symptoms but were treated for another chronic disorder, while Group 3 did not have depressive symptoms. Costs were adjusted for socio-demographics, comorbidity, and baseline health status. Total costs in groups 1-3 averaged euro7,129, euro4,371, and euro3,532 in the pre-study year (P = 0.008); euro6,029, euro3,522, and euro3,353 in the first year (P = 0.083); and euro4,929, euro3,792, and euro4,031 in the second year (P = 0.460). In the 2nd year, costs were significantly reduced in Group 1. This study underlines the importance of depression for health costs, and suggests that treatment of depression could be associated with long-term cost reductions.},
  affiliation = {Institute for Applied Epistemology and Medical Methodology, Zechenweg 6, 79111 Freiburg, Germany. harald.hamre@ifaemm.de},
  number = {1},
  pages = {77--94},
  volume = {11},
  year = {2010},
  month = {Feb},
  language = {eng},
  date-added = {2010-07-01 19:37:33 +0200},
  date-modified = {2010-07-01 19:37:33 +0200},
  doi = {10.1007/s10198-009-0203-0},
  pmid = {19911209},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Hamre-2010-Eur%20J%20Health%20Econ_Health%20costs%20in%20pati.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13427},
  rating = {0}
}
@article{Muthen:2006p13759,
  author = {Bengt Muthen and Tihomir Asparouhov},
  journal = {Addict Behav},
  title = {Item response mixture modeling: application to tobacco dependence criteria},
  abstract = {This paper illustrates new hybrid latent variable models that are promising for phenotypical analyses. The hybrid models combine features of dimensional and categorical analyses seen in the conventional techniques of factor analysis and latent class analysis. The paper focuses on the analysis of categorical items, which presents especially challenging analyses with hybrid models and has recently been made practical in the Mplus program. The hybrid models are typically seen to fit data better than conventional models of factor analysis (IRT) and latent class analysis. An illustration is given in the form of analysis of tobacco dependence in a general population survey.},
  affiliation = {UCLA, United States. bmuthen@ucla.edu},
  number = {6},
  pages = {1050--66},
  volume = {31},
  year = {2006},
  month = {Jun},
  language = {eng},
  keywords = {Psychometrics, Humans, Alcoholism, Aged, Phenotype, Tobacco Use Disorder, Adolescent, Diagnostic and Statistical Manual of Mental Disorders, Adult, Factor Analysis: Statistical, Models: Statistical},
  date-added = {2010-07-24 12:54:35 +0200},
  date-modified = {2010-07-24 12:54:43 +0200},
  doi = {10.1016/j.addbeh.2006.03.026},
  pii = {S0306-4603(06)00096-7},
  pmid = {16675147},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Muthen-2006-Addictive%20Behaviors_Item%20response%20mixtur.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13759},
  read = {Yes},
  rating = {5}
}
@article{Novembre:2008p915,
  author = {John Novembre and Toby Johnson and Katarzyna Bryc and Zolt{\'a}n Kutalik and Adam R Boyko and Adam Auton and Amit Indap and Karen S King and Sven Bergmann and Matthew R Nelson and Matthew Stephens and Carlos D Bustamante},
  journal = {Nature},
  title = {Genes mirror geography within Europe},
  abstract = {Understanding the genetic structure of human populations is of fundamental interest to medical, forensic and anthropological sciences. Advances in high-throughput genotyping technology have markedly improved our understanding of global patterns of human genetic variation and suggest the potential to use large samples to uncover variation among closely spaced populations. Here we characterize genetic variation in a sample of 3,000 European individuals genotyped at over half a million variable DNA sites in the human genome. Despite low average levels of genetic differentiation among Europeans, we find a close correspondence between genetic and geographic distances; indeed, a geographical map of Europe arises naturally as an efficient two-dimensional summary of genetic variation in Europeans. The results emphasize that when mapping the genetic basis of a disease phenotype, spurious associations can arise if genetic structure is not properly accounted for. In addition, the results are relevant to the prospects of genetic ancestry testing; an individual's DNA can be used to infer their geographic origin with surprising accuracy-often to within a few hundred kilometres.},
  affiliation = {Department of Ecology and Evolutionary Biology, Interdepartmental Program in Bioinformatics, University of California-Los Angeles, Los Angeles, California 90095, USA. jnovembre@ucla.edu},
  number = {7218},
  pages = {98--101},
  volume = {456},
  year = {2008},
  month = {Nov},
  language = {eng},
  keywords = {Polymorphism: Single Nucleotide, Phylogeny, Humans, Emigration and Immigration, Genetic Variation, Genotype, Europe, Sample Size, Genome: Human, Principal Component Analysis, Genome-Wide Association Study, Genetics: Population, Geography, Quantitative Trait: Heritable},
  date-added = {2010-01-03 19:01:04 +0100},
  date-modified = {2010-01-03 19:01:04 +0100},
  doi = {10.1038/nature07331},
  pii = {nature07331},
  pmid = {18758442},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Novembre-2008-Nature_Genes%20mirror%20geograp.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p915},
  rating = {0}
}
@article{Hays:2009p11766,
  author = {Ron D Hays and Seongeun Kim and Karen L Spritzer and Robert M Kaplan and Steve Tally and David Feeny and Honghu Liu and Dennis G Fryback},
  journal = {Value Health},
  title = {Effects of mode and order of administration on generic health-related quality of life scores},
  abstract = {OBJECTIVE: We evaluate the effects of mode and order of administration on health-related quality of life (HRQOL) scores. METHOD: We analyzed HRQOL data from the Clinical Outcomes and Measurement of Health Study (COMHS). In COMHS, we enrolled patients with heart failure or cataracts at three sites (University of California, San Diego, University of California, Los Angeles, and University of Wisconsin). Patients completed self-administered HRQOL instruments at baseline and months 1 and 6 post-baseline, including the EuroQol (EQ-5D), Health Utilities Index (HUI), Quality of Well-Being Scale--self-administered (QWB-SA), and the Short Form (SF)-36v2. At the 6 months follow-up, individuals were randomized to mail or telephone administration first, followed by the other mode of administration. We used repeated measures mixed effects models, adjusting for site, patient age, education, gender, and race. RESULTS: Included were 121 individuals entering a heart failure program and 326 individuals scheduled for cataract surgery who completed the survey by mail or phone at the 6-month follow-up. The majority of the sample was female (53%) and white (86%). About a quarter of the sample had high school education or less (26%). The average age was 66 (36-91 range). HRQOL scores were higher (more positive) for phone administration following mail administration. The largest differences in scores between phone and mail responses occurred for comparisons of telephone responses for those who were randomized to a mail survey first compared with mail responses for those randomized to a telephone survey first (i.e., mode effects for responses that were given on the second administration of the HRQOL measures). The QWB-SA was the only measure that did not display the pattern of mode effects. The biggest differences between modes were 4 points on the SF-36v2 physical health and mental health component summary scores, 0.06 on the SF-6D, 0.03 on the QWB-SA, 0.08 on the EQ-5D, 0.04 on the HUI2, and 0.10 on the HUI3. CONCLUSIONS: Telephone administration yields significantly more positive HRQOL scores for all of the generic HRQOL measures except for the QWB-SA. The magnitude of effects was clearly important, with some differences as large as a half-standard deviation. These findings confirm the importance of considering mode of administration when interpreting HRQOL scores.},
  affiliation = {UCLA Department of Medicine, UCLA, Los Angeles, CA 90095-1736, USA. drhays@ucla.edu},
  number = {6},
  pages = {1035--9},
  volume = {12},
  year = {2009},
  month = {Sep},
  language = {eng},
  keywords = {Wisconsin, Cataract, Telephone, Middle Aged, California, Quality of Life, Adult, Heart Failure, Postal Service, Aged: 80 and over, Interviews as Topic, Humans, Cross-Over Studies, Male, Research Design, Sickness Impact Profile, Aged, Female},
  date-added = {2010-05-23 10:35:43 +0200},
  date-modified = {2010-05-23 10:35:44 +0200},
  doi = {10.1111/j.1524-4733.2009.00566.x},
  pii = {VHE566},
  pmid = {19473334},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Hays-2009-Value%20Health_Effects%20of%20mode%20and.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11766},
  rating = {0}
}
@inproceedings{Allegre:2003,
  author = {E All{\`e}gre and P Dessus},
  journal = {Proceedings},
  title = {Un syst{\`e}me d'observation et d'analyse en direct de s{\'e}ances d'enseignement},
  year = {2003},
  date-added = {2010-01-10 11:33:24 +0100},
  date-modified = {2010-01-10 11:33:25 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/All%C3%A8gre-2003-Proceedings_Un%20syst%C3%A8me%20d'observa.PDF},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1964},
  rating = {0}
}
@article{Gorwood:1998p1328,
  author = {P Gorwood and M Bouvard and M C Mouren-Sim{\'e}oni and A Kipman and J Ad{\`e}s},
  journal = {Psychiatr Genet},
  title = {Genetics and anorexia nervosa: a review of candidate genes},
  abstract = {Anorexia nervosa is a severe disorder which seems likely to have a multifactorial aetiology. However, several studies have stressed that genetic factors play a significant role. Epidemiological studies have shown that the lifetime risk for first-degree relatives of a patient with an eating disorder is 6% compared to 1% among relatives of controls, and a twin study performed on 34 pairs of twins has shown a higher concordance rate in monozygotic twins (55%) compared to dizygotic twins (7%). The vulnerability component of anorexia nervosa that can be attributed to genetic influences has been estimated from twin studies to be around 70%. Despite this, few genetic studies have been performed testing the role of candidate genes which code for proteins potentially implicated in the aetiopathogenesis of the disorder. In this review, genes encoding components of the dopamine, serotonin, opiate, and noradrenaline systems are assessed for their role in anorexia nervosa. Attention is paid to psychological dimensions, clinical symptoms, co-morbidity frequency, pharmacological data, and biological measures that characterize anorexia nervosa.},
  affiliation = {Psychiatric Department, Hospital Louis Mourier, Colombes, France. pgorwood@imaginet.fr},
  number = {1},
  pages = {1--12},
  volume = {8},
  year = {1998},
  month = {Jun},
  language = {eng},
  keywords = {Anorexia Nervosa, Nuclear Family, Twin Studies as Topic, Endorphins, Twins: Dizygotic, Animals, Dopamine, Serotonin, Norepinephrine, Risk Factors, Diseases in Twins, Humans, Twins: Monozygotic},
  date-added = {2010-01-07 11:37:19 +0100},
  date-modified = {2010-01-07 11:37:19 +0100},
  pmid = {9564681},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1328},
  rating = {0}
}
@article{Holman:2003p1822,
  author = {Rebecca Holman and Cees A W Glas and Rob J de Haan},
  journal = {Controlled Clinical Trials},
  title = {Power analysis in randomized clinical trials based on item response theory},
  abstract = {Patient relevant outcomes, measured using questionnaires, are becoming increasingly popular endpoints in randomized clinical trials (RCTs). Recently, interest in the use of item response theory (IRT) to analyze the responses to such questionnaires has increased. In this paper, we used a simulation study to examine the small sample behavior of a test statistic designed to examine the difference in average latent trait level between two groups when the two-parameter logistic IRT model for binary data is used. The simulation study was extended to examine the relationship between the number of patients required in each arm of an RCT, the number of items used to assess them, and the power to detect minimal, moderate, and substantial treatment effects. The results show that the number of patients required in each arm of an RCT varies with the number of items used to assess the patients. However, as long as at least 20 items are used, the number of items barely affects the number of patients required in each arm of an RCT to detect effect sizes of 0.5 and 0.8 with a power of 80%. In addition, the number of items used has more effect on the number of patients required to detect an effect size of 0.2 with a power of 80%. For instance, if only five randomly selected items are used, it is necessary to include 950 patients in each arm, but if 50 items are used, only 450 are required in each arm. These results indicate that if an RCT is to be designed to detect small effects, it is inadvisable to use very short instruments analyzed using IRT. Finally, the SF-36, SF-12, and SF-8 instruments were considered in the same framework. Since these instruments consist of items scored in more than two categories, slightly different results were obtained.},
  affiliation = {Department of Clinical Epidemiology and Biostatistics, Academic Medical Center, Amsterdam, The Netherlands. R.Holman@amc.uva.nl},
  number = {4},
  pages = {390--410},
  volume = {24},
  year = {2003},
  month = {Aug},
  language = {eng},
  keywords = {Kidney Failure: Chronic, Renal Dialysis, Randomized Controlled Trials as Topic, Health Status, Peritoneal Dialysis, Humans, Sample Size, Probability, Models: Statistical, Questionnaires, Treatment Outcome},
  date-added = {2010-01-09 23:00:24 +0100},
  date-modified = {2010-06-15 22:46:09 +0200},
  pii = {S0197245603000618},
  pmid = {12865034},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Holman-2003-Controlled%20Clinical%20Trials_Power%20analysis%20in%20ra.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1822},
  rating = {3}
}
@article{Rommelse:2010p5730,
  author = {Nanda N J Rommelse and Barbara Franke and Hilde M Geurts and Catharina A Hartman and Jan K Buitelaar},
  journal = {Eur Child Adolesc Psychiatry},
  title = {Shared heritability of attention-deficit/hyperactivity disorder and autism spectrum disorder},
  abstract = {Attention-deficit/hyperactivity disorder (ADHD) and autism spectrum disorder (ASD) are both highly heritable neurodevelopmental disorders. Evidence indicates both disorders co-occur with a high frequency, in 20-50% of children with ADHD meeting criteria for ASD and in 30-80% of ASD children meeting criteria for ADHD. This review will provide an overview on all available studies [family based, twin, candidate gene, linkage, and genome wide association (GWA) studies] shedding light on the role of shared genetic underpinnings of ADHD and ASD. It is concluded that family and twin studies do provide support for the hypothesis that ADHD and ASD originate from partly similar familial/genetic factors. Only a few candidate gene studies, linkage studies and GWA studies have specifically addressed this co-occurrence, pinpointing to some promising pleiotropic genes, loci and single nucleotide polymorphisms (SNPs), but the research field is in urgent need for better designed and powered studies to tackle this complex issue. We propose that future studies examining shared familial etiological factors for ADHD and ASD use a family-based design in which the same phenotypic (ADHD and ASD), candidate endophenotypic, and environmental measurements are obtained from all family members. Multivariate multi-level models are probably best suited for the statistical analysis.},
  affiliation = {Department of Psychiatry, Donders Institute for Brain, Cognition and Behavior, Radboud University Nijmegen Medical Center, Reinier Postlaan 10, 6525 GC, Nijmegen, The Netherlands, n.lambregts-rommelse@psy.umcn.nl.},
  pages = {},
  year = {2010},
  month = {Feb},
  language = {ENG},
  date-added = {2010-02-15 20:28:44 +0100},
  date-modified = {2010-07-29 19:26:12 +0200},
  doi = {10.1007/s00787-010-0092-x},
  pmid = {20148275},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5730},
  rating = {0}
}
@article{Erosheva:2007p1772,
  author = {Elena Erosheva and Emily C Walton and David T Takeuchi},
  journal = {Med Care},
  title = {Self-rated health among foreign- and U.S.-born Asian Americans: a test of comparability},
  abstract = {OBJECTIVES: We investigated differences between foreign- and U.S.-born Asian Americans in self-rating their physical and mental health. In particular, we tested whether the foreign-born respondents underreport the extreme categories of the scale as compared with U.S.-born respondents. METHODS: We analyzed data from the National Latino and Asian American Study to examine whether immigrants are less likely to use the extreme ends of the 5-category self-rated health scales than their U.S.-born counterparts. We used propensity score matching to derive groups of U.S.- and foreign-born Asian Americans who share similar demographic and health characteristics. We defined propensity scores as predicted probabilities of being U.S. born, given individual background characteristics. The propensity score framework allowed us to make descriptive comparisons of self-rated health responses controlling for background characteristics. We used log-linear symmetry models to examine cross-tabulations of self-rated physical and mental health reports in matched pairs by the 2 (extreme and nonextreme) and 5 ("excellent," "very good," "good," "fair," and "poor") categories. RESULTS: Controlling for background characteristics, we found no evidence that foreign-born Asian Americans are less likely to endorse extreme categories in self-rated physical or mental health than U.S.-born Asian Americans, as well as no evidence of imbalances in endorsement of any particular self-rated health category between the 2 groups. CONCLUSIONS: Controlling for demographic and health characteristics, we find no systematic differences between foreign- and U.S.-born Asian Americans in reporting self-rated physical and mental health on the 5-category scales from "excellent" to "poor."},
  affiliation = {Department of Statistics, School of Social Work, University of Washington, Seattle 98195, USA. erosheva@u.washington.edu},
  number = {1},
  pages = {80--7},
  volume = {45},
  year = {2007},
  month = {Jan},
  language = {eng},
  keywords = {Health Status, Emigration and Immigration, Humans, Asian Americans, Mental Health, Questionnaires},
  date-added = {2010-01-09 21:31:41 +0100},
  date-modified = {2010-07-29 19:39:29 +0200},
  doi = {10.1097/01.mlr.0000241114.90614.9c},
  pii = {00005650-200701000-00011},
  pmid = {17279024},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Erosheva-2007-Med%20Care_Self-rated%20health%20am.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1772},
  rating = {0}
}
@phdthesis{Hardouin:2005,
  author = {Jean-Benoit Hardouin},
  journal = {PhD Thesis},
  title = {Construction d'{\'e}chelles d'items unidimensionnelles en qualit{\'e} de vie},
  affiliation = {Universit{\'e} Ren{\'e} Descartes},
  year = {2005},
  date-added = {2010-01-10 11:33:25 +0100},
  date-modified = {2010-01-10 11:33:25 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Hardouin-2005-PhD%20Thesis_Construction%20d'%C3%A9chel.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2108},
  rating = {0}
}
@misc{Al-Kandari:1993,
  author = {N Al-Kandari},
  journal = {Miscellaneous},
  title = {Variable Selection and Principal Component Analysis},
  year = {1993},
  date-added = {2010-01-10 11:33:20 +0100},
  date-modified = {2010-01-10 11:33:25 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Al-Kandari-1993-Miscellaneous_Variable%20Selection%20a.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2173},
  rating = {0}
}
@article{North:2007p11371,
  author = {Kari E North and Nora Franceschini and Ingrid B Borecki and C Charles Gu and Gerardo Heiss and Michael A Province and Donna K Arnett and Cora E Lewis and Michael B Miller and Richard H Myers and Steven C Hunt and Barry I Freedman},
  journal = {Diabetes},
  title = {Genotype-by-sex interaction on fasting insulin concentration: the HyperGEN study},
  abstract = {Recent studies have demonstrated the importance of sex effects on the underlying genetic architecture of insulin-related traits. To explore sex-specific genetic effects on fasting insulin, we tested for genotype-by-sex interaction and conducted linkage analysis of fasting insulin in Hypertension Genetic Epidemiology Network families. Hypertensive siblings and their first-degree relatives were recruited from five field centers. We performed a genome scan for quantitative trait loci influencing fasting insulin among 1,505 European Americans and 1,616 African Americans without diabetes. Sex-stratified linear regression models, adjusted for race, center, and age, were explored. The Mammalian Genotyping Service typed 391 microsatellite markers, spaced roughly 9 cM. Variance component linkage analysis was performed in SOLAR using ethnic-specific marker allele frequencies and multipoint IBDs calculated in MERLIN. We detected a quantitative trait locus influencing fasting insulin in female subjects (logarithm of odds [LOD] = 3.4) on chromosome 2 at 95 cM (between GATA69E12 and GATA71G04) but not in male subjects (LOD = 0.0, P for interaction = 0.007). This sex-specific signal at 2p13.2 was detected in both European-American (LOD = 2.1) and African-American (LOD = 1.2) female subjects. Our findings overlap with several other linkage reports of insulin-related traits and demonstrate the importance of considering complex context-dependent interactions in the search for insulin-related genes.},
  affiliation = {Department of Epidemiology, University of North Carolina Chapel Hill, Bank of America Center, 137 E. Franklin St., Suite 306, Chapel Hill, NC 27514, USA. kari_north@unc.edu},
  number = {1},
  pages = {137--42},
  volume = {56},
  year = {2007},
  month = {Jan},
  language = {eng},
  keywords = {Phenotype, Male, Fasting, Genotype, Sex Characteristics, Smoking, Alcohol Drinking, Female, Middle Aged, Insulin, Humans},
  date-added = {2010-04-26 23:09:18 +0200},
  date-modified = {2010-04-26 23:09:18 +0200},
  doi = {10.2337/db06-0624},
  pii = {56/1/137},
  pmid = {17192475},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/North-2007-Diabetes_Genotype-by-sex%20inte.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11371},
  rating = {0}
}
@article{Attia:2009p1302,
  author = {Evelyn Attia},
  journal = {Annu Rev Med},
  title = {Anorexia Nervosa: Current Status and Future Directions},
  abstract = {Anorexia nervosa (AN) is a serious mental illness categorized by a failure to maintain a minimally normal weight, a fear of gaining weight or becoming fat, and preoccupations about body shape or weight. AN is associated with significant morbidity and a mortality rate as high as that seen in any psychiatric illness. Biological factors, including genetic predisposition, appear to play a role in the development of AN. Treatment is challenging both because interventions with clear empirical support have not been identified and because individuals affected by AN are typically reluctant to undergo weight restoration. Preliminary studies suggest that family-based treatment may be useful for younger patients with AN. Treatment development for adults with AN and pursuit of neurobiological correlates of AN remain high-priority research areas. Expected final online publication date for the Annual Review of Medicine Volume 61 is January 07, 2010. Please see http://www.annualreviews.org/catalog/pubdates.aspx for revised estimates.},
  affiliation = {Columbia Center for Eating Disorders, Columbia University Medical Center, New York, NY; email: ea12@Columbia.edu.},
  pages = {},
  year = {2009},
  month = {Aug},
  language = {ENG},
  date-added = {2010-01-07 11:36:39 +0100},
  date-modified = {2010-01-07 11:36:39 +0100},
  doi = {10.1146/annurev.med.050208.200745},
  pmid = {19719398},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1302},
  rating = {0}
}
@article{Luce:2002p6592,
  author = {R D Luce},
  journal = {Psychological Review},
  title = {A psychophysical theory of intensity proportions, joint presentations, and matches},
  abstract = {Empirically testable assumptions relate 3 psychophysical primitives: presentations of pairs of physical intensities (e.g., pure tones of the same frequency and phase to the 2 ears or 2 successive tones to both ears); a respondent's ordering of such signal pairs by perceived intensity (e.g., loudness); and judgments about 2 pairs of stimuli being related as some proportion (numerical factor, as in magnitude production). Explicit behavioral assumptions lead to 2 families of psychophysical functions, one corresponding to unbiased joint presentations and the other to biased ones. Under an invariance assumption, the psychophysical functions in the unbiased case are approximate power functions, and those in the biased case are exact power functions. A number of testable predictions are made. The mathematics involved draws from publications in utility theory and mathematics but with a reinterpretation of the primitives.},
  affiliation = {Department of Cognitive Science, University of California, Irvine 92697-5100, USA. rdluce@uci.edu},
  number = {3},
  pages = {520--32},
  volume = {109},
  year = {2002},
  month = {Jul},
  language = {eng},
  keywords = {Psychological Theory, Models: Psychological, Loudness Perception, Psychoacoustics, Humans},
  date-added = {2010-02-24 20:39:25 +0100},
  date-modified = {2010-03-06 19:49:08 +0100},
  pmid = {12088243},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Luce-2002-Psychological%20Review_A%20psychophysical%20the.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6592},
  rating = {0}
}
@article{Veenstra:2010p9370,
  author = {Marja Y Veenstra and Patricia N Walsh and Henny M J van Schrojenstein Lantman-de Valk and Meindert J Haveman and Mike P Kerr and Germain Weber and Luis Salvador-Carulla and Alexandra Carmen-Cara and Bernard Azema and Serafino Buono and Arunas Germanavicius and Jan Tossebro and Tuomo Maatta and Geert van Hove and Dasa Moravec},
  journal = {Journal of Clinical Epidemiology},
  title = {Sampling and ethical issues in a multicenter study on health of people with intellectual disabilities},
  abstract = {OBJECTIVES: To study health inequalities in persons with intellectual disabilities, representative and unbiased samples are needed. Little is known about sample recruitment in this vulnerable group. This study aimed to determine differences in ethical procedures and sample recruitment in a multicenter research on health of persons with intellectual disabilities. Study questions regarded the practical sampling procedure, how ethical consent was obtained in each country, and which person gave informed consent for each study participant. STUDY DESIGN AND SETTING: Exploratory, as part of a multicenter study, in 14 European countries. After developing identical guidelines for all countries, partners collected data on health indicators by orally interviewing 1,269 persons with intellectual disabilities. Subsequently, semistructured interviews were carried out with partners and researchers. RESULTS: Identification of sufficient study participants proved feasible. Sampling frames differed from nationally estimated proportions of persons with intellectual disabilities living with families or in residential settings. Sometimes, people with intellectual disabilities were hard to trace. Consent procedures and legal representation varied broadly. Nonresponse data proved unavailable. CONCLUSION: To build representative unbiased samples of vulnerable groups with limited academic capacities, international consensus on respectful consent procedures and tailored patient information is necessary.},
  affiliation = {Department of General Practice, CAPHRI Care and Public Health Research Institute, University of Maastricht.},
  pages = {},
  year = {2010},
  month = {Mar},
  language = {ENG},
  date-added = {2010-03-23 18:42:39 +0100},
  date-modified = {2010-03-23 18:42:39 +0100},
  doi = {10.1016/j.jclinepi.2009.12.001},
  pii = {S0895-4356(09)00386-2},
  pmid = {20304607},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Veenstra-2010-Journal%20of%20Clinical%20Epidemiology_Sampling%20and%20ethical-1.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p9370},
  rating = {0}
}
@article{Candido:2010p12840,
  author = {E Candido and P Kurdyak and D A Alter},
  journal = {Journal of Clinical Epidemiology},
  title = {Item nonresponse to psychosocial questionnaires was associated with higher mortality after acute myocardial infarction},
  abstract = {Objective: To examine the relationship between selective nonresponse to a psychosocial questionnaire and mortality after acute myocardial infarction (AMI).
Study Design and Setting: Two thousand six hundred and ninety AMI survivors after AMI hospitalization were recruited to complete a 30-day follow-up interview. Patients were classified into four groups (survey nonparticipation and complete, partial, and no item nonre- sponse) according to their degree of response to the Medical Outcomes Study (MOS) Social Support Survey (MOS-SSS). Cox proportional hazard models, adjusted for baseline sociodemographic, clinical, and psychosocial (i.e., social isolation) characteristics, were used to examine all-cause mortality, 3 years post-AMI, across the response levels.
Results: 13.9%oftheeligiblepatientsrefusedfollow-upparticipation;MOS-SSSitemnonresponsewaspresentinupto14.7%ofparticipants and was more frequent among the elderly, socially disadvantaged, and those with higher clinical risk. A nonresponse mortality gradient existed, ranging from 8.9% (no item nonresponse) to 18.7% (complete item nonresponse) (P ! 0.001). After adjusting for baseline characteristics, complete item nonresponse remained significantly associated with mortality (hazard ratio: 1.33; 95% confidence interval: 1.02e1.73).
Conclusions: Itemnonresponsetoasocialsupportquestionnaireisassociatedwithhighermortalitypost-AMI.Althoughexplanatoryfactors may include age and baseline clinical risk, additional psychosocial and/or unmeasured factors may account for the poorer prognosis.},
  year = {2010},
  date-added = {2010-06-21 20:05:34 +0200},
  date-modified = {2010-06-21 20:06:22 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Candido-2010-Journal%20of%20Clinical%20Epidemiology_Item%20nonresponse%20to.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12840},
  rating = {0}
}
@article{Huynh:2010p4185,
  author = {H Huynh and P Meyer},
  journal = {Practical Assessment Research \{\&} Evaluation},
  title = {Use of Robust z in Detecting Unstable Items in Item Response Theory Models},
  abstract = {The first part of this paper describes the use of the robust zR statistic to link test forms using the Rasch (or one-parameter logistic) model. The procedure is then extended to the two-parameter and three-parameter logistic and two-parameter partial credit (2PPC) models. A real set of data was used to illustrate the extension. The linking results illustrate the efficacy of the robust zR vis-{\`a}-vis some of the most commonly used processes such as the Stocking and Lord (1983) linking process.},
  number = {2},
  volume = {15},
  year = {2010},
  date-added = {2010-01-21 07:54:18 +0100},
  date-modified = {2010-07-29 19:44:42 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Huynh-2010-Practical%20Assessment%20Research%20%20&%20Evaluation_Use%20of%20Robust%20z%20in%20D.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4185},
  rating = {0}
}
@article{Lewis:2005p2331,
  author = {J B Lewis and D A Linzer},
  journal = {Political Analysis},
  title = {Estimating Regression Models in Which the Dependent Variable Is Based on Estimates},
  abstract = {Researchers often use as dependent variables quantities estimated from auxiliary data sets. Estimated dependent variable (EDV) models arise, for example, in studies where counties or states are the units of analysis and the dependent variable is an estimated mean, proportion, or regression coefficient. Scholars fitting EDV models have generally recognized that variation in the sampling variance of the observations on the dependent variable will induce heteroscedasticity. We show that the most common approach to this problem, weighted least squares, will usually lead to inefficient estimates and underestimated standard errors. In many cases, OLS with White's or Efron heteroscedastic consistent standard errors yields better results. We also suggest two simple alternative FGLS approaches that are more efficient and yield consistent standard error estimates. Finally, we apply the various alternative estimators to a replication of Cohen's (2004) cross-national study of presidential approval.},
  pages = {345--364},
  volume = {13},
  year = {2005},
  date-added = {2010-01-10 13:14:03 +0100},
  date-modified = {2010-01-10 13:14:53 +0100},
  doi = {10.1093/pan/mpi026},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Lewis-2005-Political%20Analysis_Estimating%20Regressio.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2331},
  rating = {0}
}
@article{Murrell:2001p2769,
  author = {P Murrell},
  journal = {DSC 2001 Proceedings of the 2nd International Workshop on Distributed Statistical Computing},
  title = {R Lattice Graphics},
  abstract = {Lattice is an add-on package or library for the R statistical computing en- vironment. It provides an alternative set of user-level functions for producing graphical output. Compared to the base R graphical functions, the Lattice functions provide greater control over the specification of where graphical output appears on the page. In addition, Lattice graphics functions return graphical objects, which may be used to interactively edit the graphical out- put.},
  year = {2001},
  date-added = {2010-01-13 14:26:02 +0100},
  date-modified = {2010-01-13 14:26:35 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Murrell-2001-DSC%202001%20Proceedings%20of%20the%202nd%20International%20Workshop%20on%20Distributed%20Statistical%20Computing_R%20Lattice%20Graphics.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2769},
  rating = {0}
}
@article{Landauer:2004,
  author = {T K Landauer and D Laham and M Derr},
  journal = {Proceedings of the National Academy of Sciences USA},
  title = {From paragraph to graph: latent semantic analysis for information visualization},
  abstract = {Most techniques for relating textual information rely on intellectually created links such as author-chosen keywords and titles, authority indexing terms, or bibliographic citations. Similarity of the semantic content of whole documents, rather than just titles, abstracts, or overlap of keywords, offers an attractive alternative. Latent semantic analysis provides an effective dimension reduction method for the purpose that reflects synonymy and the sense of arbitrary word combinations. However, latent semantic analysis correlations with human text-to-text similarity judgments are often empirically highest at approximately 300 dimensions. Thus, two- or three-dimensional visualizations are severely limited in what they can show, and the first and/or second automatically discovered principal component, or any three such for that matter, rarely capture all of the relations that might be of interest. It is our conjecture that linguistic meaning is intrinsically and irreducibly very high dimensional. Thus, some method to explore a high dimensional similarity space is needed. But the 2.7 x 10(7) projections and infinite rotations of, for example, a 300-dimensional pattern are impossible to examine. We suggest, however, that the use of a high dimensional dynamic viewer with an effective projection pursuit routine and user control, coupled with the exquisite abilities of the human visual system to extract information about objects and from moving patterns, can often succeed in discovering multiple revealing views that are missed by current computational algorithms. We show some examples of the use of latent semantic analysis to support such visualizations and offer views on future needs.},
  number = {Suppl 1},
  pages = {5214--5219},
  volume = {101},
  year = {2004},
  date-added = {2010-01-10 11:33:25 +0100},
  date-modified = {2010-01-10 11:33:25 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Landauer-2004-Proceedings%20of%20the%20National%20Academy%20of%20Sciences%20USA_From%20paragraph%20to%20gr.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2214},
  rating = {0}
}
@article{Ramasundarahettige:2009p6907,
  author = {Chinthanie F Ramasundarahettige and Allan Donner and G Y Zou},
  journal = {Stat Med},
  title = {Confidence interval construction for a difference between two dependent intraclass correlation coefficients},
  abstract = {Inferences for the difference between two dependent intraclass correlation coefficients (ICCs) may arise in studies in which a sample of subjects are each assessed several times with a new device and a standard. The ICC estimates for the two devices may then be compared using a test of significance. However, a confidence interval for a difference between two ICCs is more informative since it combines point estimation and hypothesis testing into a single inference statement. We propose a procedure that uses confidence limits for a single ICC to recover variance estimates needed to set confidence limits for the difference. An advantage of this approach is that it provides a confidence interval that reflects the underlying sampling distribution. Simulation results show that this method performs very well in terms of overall coverage percentage and tail errors. Two data sets are used to illustrate this procedure.},
  affiliation = {Department of Epidemiology and Biostatistics, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ont., Canada N6A 5C1.},
  number = {7},
  pages = {1041--53},
  volume = {28},
  year = {2009},
  month = {Mar},
  language = {eng},
  keywords = {Clinical Trials as Topic, Confidence Intervals, Data Interpretation: Statistical, Models: Statistical, Reproducibility of Results},
  date-added = {2010-03-06 12:22:31 +0100},
  date-modified = {2010-03-06 12:22:31 +0100},
  doi = {10.1002/sim.3523},
  pmid = {19142855},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Ramasundarahettige-2009-Stat%20Med_Confidence%20interval.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6907},
  rating = {0}
}
@article{Hwang:2009p13734,
  author = {H Hwang and Y Takane},
  title = {Nonlinear Generalized Structured Component Analysis},
  abstract = {Generalized Structured Component Analysis (GSCA) represents component- based structural equation modeling. Currently, GSCA is geared only for the analysis of quantitative data. In this paper, GSCA is extended to deal with qualitative data through data transformation. In particular, the optimal scaling approach is adopted for data transformation as it can be readily coupled with the GSCA estimation procedure. An alternating least-squares algorithm is developed that involves two phases for estimation of model and data parameters. Two empirical applications are presented to demonstrate the usefulness of the proposed method.},
  year = {2009},
  date-added = {2010-07-24 11:38:46 +0200},
  date-modified = {2010-07-24 11:39:33 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Hwang-2009-_Nonlinear%20Generalize.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13734},
  rating = {4}
}
@article{Barnett:2009p818,
  author = {J H Barnett and J W Smoller},
  journal = {Neuroscience},
  title = {The genetics of bipolar disorder},
  abstract = {Bipolar disorder is a mood disorder characterized by impairing episodes of mania and depression. Twin studies have established that bipolar disorder is among the most heritable of medical disorders and efforts to identify specific susceptibility genes have intensified over the past two decades. The search for genes influencing bipolar disorder has been complicated by a paucity of animal models, limited understanding of pathogenesis, and the genetic and phenotypic complexity of the syndrome. Linkage studies have implicated several chromosomal regions as harboring relevant genes, but results have been inconsistent. It is now widely accepted that the genetic liability to bipolar disorder reflects the action of many genes of individually small effect, a scenario for which linkage studies are poorly suited. Thus, association studies, which are more powerful for the detection of modest effect loci, have become the focus of gene-finding research. A large number of candidate genes, including biological candidates derived from hypotheses about the pathogenesis of the disorder and positional candidates derived from linkage and cytogenetic studies, have been evaluated. Several of these genes have been associated with the disorder in independent studies (including BDNF, DAOA, DISC1, GRIK4, SLC6A4, and TPH2), but none has been established. The clinical heterogeneity of bipolar disorder and its phenotypic and genetic overlap with other disorders (especially schizophrenia, schizoaffective disorder, and major depressive disorder) have raised questions about the optimal phenotype definition for genetic studies. Nevertheless, genomewide association analysis, which has successfully identified susceptibility genes for a variety of complex disorders, has begun to implicate specific genes for bipolar disorder (DGKH, CACNA1C, ANK3). The polygenicity of the disorder means that very large samples will be needed to detect the modest effect loci that likely contribute to bipolar disorder. Detailed genetic dissection of the disorder may provide novel targets (both pharmacologic and psychosocial) for intervention.},
  affiliation = {Center for Human Genetic Research, Department of Psychiatry, Massachusetts General Hospital, Boston, MA 02114, USA.},
  number = {1},
  pages = {331--43},
  volume = {164},
  year = {2009},
  month = {Nov},
  language = {eng},
  date-added = {2010-01-03 17:25:56 +0100},
  date-modified = {2010-01-03 17:25:56 +0100},
  doi = {10.1016/j.neuroscience.2009.03.080},
  pii = {S0306-4522(09)00576-4},
  pmid = {19358880},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p818},
  rating = {0}
}
@article{Austin:2010p6559,
  author = {Peter C Austin},
  journal = {Journal of Clinical Epidemiology},
  title = {Absolute risk reductions, relative risks, relative risk reductions, and numbers needed to treat can be obtained from a logistic regression model},
  abstract = {OBJECTIVE: Logistic regression models are frequently used in cohort studies to determine the association between treatment and dichotomous outcomes in the presence of confounding variables. In a logistic regression model, the association between exposure and outcome is measured using the odds ratio (OR). The OR can be difficult to interpret and only approximates the relative risk (RR) in certain restrictive settings. Several authors have suggested that for dichotomous outcomes, RRs, RR reductions, absolute risk reductions, and the number needed to treat (NNT) are more clinically meaningful measures of treatment effect. STUDY DESIGN AND SETTING: We describe a method for deriving clinically meaningful measures of treatment effect from a logistic regression model. This method involves determining the probability of the outcome if each subject in the cohort was treated and if each subject was untreated. These probabilities are then averaged across the study cohort to determine the average probability of the outcome in the population if all subjects were treated and if they were untreated. RESULTS: Risk differences, RRs, and NNTs were derived using a logistic regression model. CONCLUSIONS: Clinically meaningful measures of effect can be derived from a logistic regression model in a cohort study. These methods can also be used in randomized controlled trials when logistic regression is used to adjust for possible imbalance in prognostically important baseline covariates.},
  affiliation = {Institute for Clinical Evaluative Sciences, Toronto, Ontario M4N 3M5, Canada. peter.austin@ices.on.ca},
  number = {1},
  pages = {2--6},
  volume = {63},
  year = {2010},
  month = {Jan},
  language = {eng},
  date-added = {2010-02-24 20:36:54 +0100},
  date-modified = {2010-02-24 20:36:55 +0100},
  doi = {10.1016/j.jclinepi.2008.11.004},
  pii = {S0895-4356(08)00316-8},
  pmid = {19230611},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Austin-2010-Journal%20of%20Clinical%20Epidemiology_Absolute%20risk%20reduct.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6559},
  rating = {0}
}
@article{AnkraBadu:2010p11343,
  author = {Georgina A Ankra-Badu and Daniel Shriner and Elisabeth Le Bihan-Duval and Sandrine Mignon-Grasteau and Fr{\'e}d{\'e}rique Pitel and Catherine Beaumont and Michel J Duclos and Jean Simon and Tom E Porter and Alain Vignal and Larry A Cogburn and David B Allison and Nengjun Yi and Samuel E Aggrey},
  journal = {BMC Genomics},
  title = {Mapping main, epistatic and sex-specific QTL for body composition in a chicken population divergently selected for low or high growth rate},
  abstract = {BACKGROUND: Delineating the genetic basis of body composition is important to agriculture and medicine. In addition, the incorporation of gene-gene interactions in the statistical model provides further insight into the genetic factors that underlie body composition traits. We used Bayesian model selection to comprehensively map main, epistatic and sex-specific QTL in an F2 reciprocal intercross between two chicken lines divergently selected for high or low growth rate. RESULTS: We identified 17 QTL with main effects across 13 chromosomes and several sex-specific and sex-antagonistic QTL for breast meat yield, thigh + drumstick yield and abdominal fatness. Different sets of QTL were found for both breast muscles [Pectoralis (P) major and P. minor], which suggests that they could be controlled by different regulatory mechanisms. Significant interactions of QTL by sex allowed detection of sex-specific and sex-antagonistic QTL for body composition and abdominal fat. We found several female-specific P. major QTL and sex-antagonistic P. minor and abdominal fatness QTL. Also, several QTL on different chromosomes interact with each other to affect body composition and abdominal fatness. CONCLUSIONS: The detection of main effects, epistasis and sex-dimorphic QTL suggest complex genetic regulation of somatic growth. An understanding of such regulatory mechanisms is key to mapping specific genes that underlie QTL controlling somatic growth in an avian model.},
  affiliation = {Department of Poultry Science/Institute of Bioinformatics, University of Georgia, Athens, GA 30602, USA.},
  pages = {107},
  volume = {11},
  year = {2010},
  month = {Jan},
  language = {eng},
  date-added = {2010-04-26 23:07:24 +0200},
  date-modified = {2010-07-29 19:20:00 +0200},
  doi = {10.1186/1471-2164-11-107},
  pii = {1471-2164-11-107},
  pmid = {20149241},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Ankra-Badu-2010-BMC%20Genomics_Mapping%20main%20epista.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11343},
  rating = {0}
}
@article{Borsboom:2006p5505,
  author = {D Borsboom},
  journal = {Psychometrika},
  title = {The attack of the psychometricians},
  abstract = {This paper analyzes the theoretical, pragmatic, and substantive factors that have hampered the integration between psychology and psychometrics. Theoretical factors include the operationalist mode of thinking which is common throughout psychology, the dominance of classical test theory, and the use of ``construct validity'' as a catch-all category for a range of challenging psychometric problems. Pragmatic factors include the lack of interest in mathematically precise thinking in psychology, inadequate representation of psychometric modeling in major statistics programs, and insufficient mathematical training in the psychological curriculum. Substantive factors relate to the absence of psychological theories that are sufficiently strong to motivate the structure of psychometric models. Following the identification of these problems, a number of promising recent developments are discussed, and suggestions are made to further the integration of psychology and psychometrics.},
  number = {3},
  pages = {425--440},
  volume = {71},
  year = {2006},
  date-added = {2010-02-12 14:49:15 +0100},
  date-modified = {2010-02-12 14:51:07 +0100},
  doi = {10.1007/s11336-006-1447-6},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Borsboom-2006-Psychometrika_The%20attack%20of%20the%20ps-1.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5505},
  rating = {0}
}
@article{Cohen:1994p7065,
  author = {J Cohen},
  journal = {American Psychologist},
  title = {The earth is round (p<.05)},
  number = {12},
  pages = {997--1003},
  volume = {49},
  year = {1994},
  date-added = {2010-03-06 20:09:17 +0100},
  date-modified = {2010-03-06 20:10:06 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Cohen-1994-American%20Psychologist_The%20earth%20is%20round.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7065},
  rating = {4}
}
@techreport{Monseur:2007,
  author = {C Monseur and H Sibbens and D Hastedt},
  journal = {Techreport},
  title = {Equating errors in international surveys in education},
  affiliation = {IEA Data Processing Center},
  year = {2007},
  date-added = {2010-01-10 11:33:20 +0100},
  date-modified = {2010-01-10 11:33:25 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Monseur-2007-Techreport_Equating%20errors%20in%20i.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2035},
  rating = {0}
}
@article{Batki:2009p7873,
  author = {Steven L Batki and Kelly M Canfield and Emily Smyth and Robert Ploutz-Snyder},
  journal = {Drug Alcohol Depend},
  title = {Health-related quality of life in methadone maintenance patients with untreated hepatitis C virus infection},
  abstract = {OBJECTIVE: To assess health-related quality of life (HRQOL) in methadone maintenance treatment (MMT) patients with untreated chronic HCV infection and to determine the clinical factors that predict HRQOL. METHOD: HRQOL was measured in 100 MMT patients entering an HCV treatment trial. Subjects were mostly male (61%) and white (81%) with a mean age of 43 (+/-10). 57% had a current non-substance use psychiatric disorder. 55% had a current (past 12 months) substance use disorder, including 44% with current opioid or cocaine abuse/dependence. HRQOL in our sample was compared to published reports for the general population as well as for non-MMT HCV patients. To assess predictors of SF-36 HRQOL, hierarchical multiple regression techniques were used to assess model improvement with four blocks of baseline predictors: Demographics, Medical Severity, Addiction Severity, and Depression Severity. RESULTS: HRQOL scores were significantly lower than scores for the general population and were also lower than scores reported for untreated HCV patients not in MMT. Regression analysis demonstrated a consistent pattern whereby Depression Severity increased predictive accuracy for HRQOL measures over simpler models. Beck Depression Inventory scores significantly predicted quality of life across both the mental and physical composite scores and all eight sub-scales of the SF-36. CONCLUSIONS: Untreated HCV patients in MMT had lower HRQOL than HCV patients not in MMT. Depression Severity was associated with significantly lower quality of life measures, suggesting that psychiatric evaluation and intervention prior to the start of HCV treatment may improve overall quality of life and could influence HCV treatment outcomes in MMT patients.},
  affiliation = {University of California, San Francisco, Department of Psychiatry, and San Francisco VA Medical Center, 4150 Clement St. (116P), San Francisco, CA 94110, USA. steven.batki@ucsf.edu},
  number = {3},
  pages = {176--82},
  volume = {101},
  year = {2009},
  month = {May},
  language = {eng},
  keywords = {Methadone, Viral Load, Substance-Related Disorders, Severity of Illness Index, Quality of Life, Continental Population Groups, Hepatitis C, Middle Aged, Psychiatric Status Rating Scales, Ethnic Groups, Depression, Questionnaires, Adult, Random Allocation, Humans, Health Status, Mental Health},
  date-added = {2010-03-20 19:14:15 +0100},
  date-modified = {2010-03-20 19:14:16 +0100},
  doi = {10.1016/j.drugalcdep.2008.12.012},
  pii = {S0376-8716(09)00017-9},
  pmid = {19233573},
  url = {http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6T63-4VP12HP-2&_user=10&_coverDate=05%252F01%252F2009&_rdoc=1&_fmt=high&_orig=search&_sort=d&_docanchor=&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=75eee685c0deebd8490897c70609242a},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7873},
  rating = {0}
}
@article{Feeney:2006p7285,
  author = {G F X Feeney and J P Connor and R McD Young and J Tucker and A McPherson},
  journal = {Addict Behav},
  title = {Improvement in measures of psychological distress amongst amphetamine misusers treated with brief cognitive-behavioural therapy (CBT)},
  abstract = {This trial of cognitive-behavioural therapy (CBT) based amphetamine abstinence program (n=507) focused on refusal self-efficacy, improved coping, improved problem solving and planning for relapse prevention. Measures included the Severity of Dependence Scale (SDS), the General Health Questionnaire-28 (GHQ-28) and Amphetamine Refusal Self-Efficacy. Psychiatric case identification (caseness) across the four GHQ-28 sub-scales was compared with Australian normative data. Almost 90% were amphetamine-dependent (SDS 8.15+/-3.17). Pre-treatment, all GHQ-28 sub-scale measures were below reported Australian population values. Caseness was substantially higher than Australian normative values {Somatic Symptoms (52.3%), Anxiety (68%), Social Dysfunction (46.5%) and Depression (33.7%)}. One hundred and sixty-eight subjects (33%) completed and reported program abstinence. Program completers reported improvement across all GHQ-28 sub-scales {Somatic Symptoms (p<0.001), Anxiety (p<0.001), Social Dysfunction (p<0.001) and Depression (p<0.001)}. They also reported improvement in amphetamine refusal self-efficacy (p<0.001). Improvement remained significant following intention-to-treat analyses, imputing baseline data for subjects that withdrew from the program. The GHQ-28 sub-scales, Amphetamine Refusal Self-Efficacy Questionnaire and the SDS successfully predicted treatment compliance through a discriminant analysis function (p<.001).},
  affiliation = {Alcohol and Drug Assessment Unit, Princess Alexandra Hospital, Brisbane, Queensland 4102, Australia. Gerald_Feeney@health.qld.gov.au},
  number = {10},
  pages = {1833--43},
  volume = {31},
  year = {2006},
  month = {Oct},
  language = {eng},
  keywords = {Stress: Psychological, Patient Compliance, Female, Adult, Humans, Cognitive Therapy, Adaptation: Psychological, Male, Self Disclosure, Treatment Outcome, Amphetamine-Related Disorders, Aged, Middle Aged},
  date-added = {2010-03-10 20:16:51 +0100},
  date-modified = {2010-07-29 19:12:35 +0200},
  doi = {10.1016/j.addbeh.2005.12.026},
  pii = {S0306-4603(05)00319-9},
  pmid = {16431030},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Feeney-2006-Addict%20Behav_Improvement%20in%20measu.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7285},
  rating = {0}
}
@article{Wolf:1988,
  author = {PA Wolf and RB D'Agostino and WB Kannel and R Bonita and AJ Belanger},
  journal = {JAMA},
  title = {Cigarette smoking as a risk factor for stroke. The Framingham Study},
  abstract = {The impact of cigarette smoking on stroke incidence was assessed in the Framingham Heart Study cohort of 4255 men and women who were aged 36 to 68 years and free of stroke and transient ischemic attacks. During 26 years of follow-up, 459 strokes occurred. Regardless of smoking status and in each sex, hypertensive subjects had twice the incidence of stroke. Using the Cox proportional hazard regression method, smoking was significantly related to stroke after age and hypertension were taken into account. Even after pertinent cardiovascular disease risk factors were added to the Cox model, cigarette smoking continued to make a significant independent contribution to the risk of stroke generally and brain infarction specifically. The risk of stroke increased as the number of cigarettes smoked increased. The relative risk of stroke in heavy smokers (greater than 40 cigarettes per day) was twice that of light smokers (fewer than ten cigarettes per day). Lapsed smokers developed stroke at the same level as nonsmokers soon after stopping. Stroke risk decreased significantly by two years and was at the level of nonsmokers by five years after cessation of cigarette smoking.},
  number = {7},
  pages = {1025--1029},
  volume = {259},
  year = {1988},
  date-added = {2010-01-03 19:36:10 +0100},
  date-modified = {2010-07-29 20:00:58 +0200},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1073},
  rating = {0}
}
@article{Borsboom:2002p5506,
  author = {D Borsboom and G J Mellenbergh},
  journal = {Intelligence},
  title = {True scores, latent variables, and constructs: A comment on Schmidt and Hunter},
  abstract = {This paper comments on an article by Schmidt and Hunter [Intelligence 27 (1999) 183.], who argue that the correction for attenuation should be routinely used in theory testing. It is maintained that Schmidt and Hunter's arguments are based on mistaken assumptions. We discuss our critique of Schmidt and Hunter in terms of two arguments against a routine use of the correction for attenuation within the classical test theory framework: (1) corrected correlations do not, as Schmidt and Hunter claim, provide correlations between constructs, and (2) corrections for measurement error should be made using modern test theory models instead of the classical model. The arguments that Schmidt and Hunter advance in favor of the correction for attenuation can be traced to an implicit identification of true scores with construct scores. First, we show that this identification confounds issues of validity and issues of reliability. Second, it is pointed out that equating true scores with construct scores is logically inconsistent with the classical test theory model itself. Third, it is argued that the classical model is not suited for detecting the dimensionality of test scores, which severely limits the interpretation of the corrected correlation coefficients. It is concluded that most measurement problems in psychology concern issues of validity, and that the correction for attenuation within classical test theory does not help in solving them.},
  pages = {505--514},
  volume = {30},
  year = {2002},
  date-added = {2010-02-12 14:52:07 +0100},
  date-modified = {2010-07-29 19:29:16 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Borsboom-2002-Intelligence_True%20scores%20latent.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5506},
  rating = {4}
}
@article{Lindstrom:2009p10192,
  author = {Kara M Lindstrom and Amanda E Guyer and Karin Mogg and Brendan P Bradley and Nathan A Fox and Monique Ernst and Eric E Nelson and Ellen Leibenluft and Jennifer C Britton and Christopher S Monk and Daniel S Pine and Yair Bar-Haim},
  journal = {Brain Res},
  title = {Normative data on development of neural and behavioral mechanisms underlying attention orienting toward social-emotional stimuli: an exploratory study},
  abstract = {The ability of positive and negative facial signals to influence attention orienting is crucial to social functioning. Given the dramatic developmental change in neural architecture supporting social function, positive and negative facial cues may influence attention orienting differently in relatively young or old individuals. However, virtually no research examines such age-related differences in the neural circuitry supporting attention orienting to emotional faces. We examined age-related correlations in attention-orienting biases to positive and negative face emotions in a healthy sample (N=37; 9-40 years old) using functional magnetic resonance imaging and a dot-probe task. The dot-probe task in an fMRI setting yields both behavioral and neural indices of attention biases towards or away from an emotional cue (happy or angry face). In the full sample, angry-face attention bias scores did not correlate with age, and age did not correlate with brain activation to angry faces. However, age did positively correlate with attention bias towards happy faces; age also negatively correlated with left cuneus and left caudate activation to a happy bias fMRI contrast. Secondary analyses suggested age-related changes in attention bias to happy faces. The tendency in younger children to direct attention away from happy faces (relative to neutral faces) was diminished in the older age groups, in tandem with increasing neural deactivation. Implications for future work on developmental changes in attention-emotion processing are discussed.},
  affiliation = {Mood and Anxiety Program, National Institutes of Mental Health, National Institute of Health, Bethesda, MD 20892-2670, USA. lindstrk@mail.nih.gov},
  pages = {61--70},
  volume = {1292},
  year = {2009},
  month = {Oct},
  language = {eng},
  keywords = {Attention, Cues, Female, Neuropsychological Tests, Magnetic Resonance Imaging, Child, Emotions, Male, Adolescent, Photic Stimulation, Facial Expression, Young Adult, Humans, Brain, Social Perception, Adolescent Development, Child Development, Aging, Adult, Brain Mapping},
  date-added = {2010-04-01 18:16:01 +0200},
  date-modified = {2010-07-29 19:21:52 +0200},
  doi = {10.1016/j.brainres.2009.07.045},
  pii = {S0006-8993(09)01479-6},
  pmid = {19631626},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Lindstrom-2009-Brain%20Res_Normative%20data%20on%20de.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p10192},
  rating = {0}
}
@article{Dell:2008p2334,
  author = {Gary S Dell and Alfonso Caramazza},
  journal = {Cogn Neuropsychol},
  title = {Introduction to special issue on computational modelling in cognitive neuropsychology},
  affiliation = {University of Illinois, Urbana-Champaign, IL, USA.},
  number = {2},
  pages = {131--5},
  volume = {25},
  year = {2008},
  month = {Mar},
  language = {eng},
  keywords = {Humans, Cognition Disorders, Neural Networks (Computer), Brain, Neuropsychological Tests},
  date-added = {2010-01-10 13:18:43 +0100},
  date-modified = {2010-01-10 13:18:43 +0100},
  doi = {10.1080/02643290802000683},
  pii = {793768502},
  pmid = {18568815},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Dell-2008-Cogn%20Neuropsychol_Introduction%20to%20spec.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2334},
  rating = {0}
}
@article{Sourial:2009p11511,
  author = {Nadia Sourial and Christina Wolfson and Bin Zhu and Jacqueline Quail and John Fletcher and Sathya Karunananthan and Karen Bandeen-Roche and Fran{\c c}ois B{\'e}land and Howard Bergman},
  journal = {Journal of Clinical Epidemiology},
  title = {Correspondence analysis is a useful tool to uncover the relationships among categorical variables},
  abstract = {OBJECTIVE: Correspondence analysis (CA) is a multivariate graphical technique designed to explore the relationships among categorical variables. Epidemiologists frequently collect data on multiple categorical variables with the goal of examining associations among these variables. Nevertheless, CA appears to be an underused technique in epidemiology. The objective of this article is to present the utility of CA in an epidemiological context. STUDY DESIGN AND SETTING: The theory and interpretation of CA in the case of two and more than two variables are illustrated through two examples. RESULTS: The outcome from CA is a graphical display of the rows and columns of a contingency table that is designed to permit visualization of the salient relationships among the variable responses in a low-dimensional space. Such a representation reveals a more global picture of the relationships among row-column pairs, which would otherwise not be detected through a pairwise analysis. CONCLUSION: When the study variables of interest are categorical, CA is an appropriate technique to explore the relationships among variable response categories and can play a complementary role in analyzing epidemiological data.},
  affiliation = {Solidage Research Group, Centre for Clinical Epidemiology and Community Studies, Lady Davis Institute for Medical Research, Jewish General Hospital, McGill University, Montreal, Quebec, Canada.},
  pages = {},
  year = {2009},
  month = {Nov},
  language = {ENG},
  date-added = {2010-05-01 17:33:28 +0200},
  date-modified = {2010-05-01 17:33:32 +0200},
  doi = {10.1016/j.jclinepi.2009.08.008},
  pii = {S0895-4356(09)00237-6},
  pmid = {19896800},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Sourial-2009-Journal%20of%20Clinical%20Epidemiology_Correspondence%20analy.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11511},
  rating = {4}
}
@article{Cook:2007p10853,
  author = {Karon F Cook and Cayla R Teal and Jakob B Bjorner and David Cella and Chih-Hung Chang and Paul K Crane and Laura E Gibbons and Ron D Hays and Colleen A McHorney and Katja Ocepek-Welikson and Anastasia E Raczek and Jeanne A Teresi and Bryce B Reeve},
  journal = {Qual Life Res},
  title = {IRT health outcomes data analysis project: an overview and summary},
  abstract = {BACKGROUND: In June 2004, the National Cancer Institute and the Drug Information Association co-sponsored the conference, "Improving the Measurement of Health Outcomes through the Applications of Item Response Theory (IRT) Modeling: Exploration of Item Banks and Computer-Adaptive Assessment." A component of the conference was presentation of a psychometric and content analysis of a secondary dataset. OBJECTIVES: A thorough psychometric and content analysis was conducted of two primary domains within a cancer health-related quality of life (HRQOL) dataset. RESEARCH DESIGN: HRQOL scales were evaluated using factor analysis for categorical data, IRT modeling, and differential item functioning analyses. In addition, computerized adaptive administration of HRQOL item banks was simulated, and various IRT models were applied and compared. SUBJECTS: The original data were collected as part of the NCI-funded Quality of Life Evaluation in Oncology (Q-Score) Project. A total of 1,714 patients with cancer or HIV/AIDS were recruited from 5 clinical sites. MEASURES: Items from 4 HRQOL instruments were evaluated: Cancer Rehabilitation Evaluation System-Short Form, European Organization for Research and Treatment of Cancer Quality of Life Questionnaire, Functional Assessment of Cancer Therapy and Medical Outcomes Study Short-Form Health Survey. RESULTS AND CONCLUSIONS: Four lessons learned from the project are discussed: the importance of good developmental item banks, the ambiguity of model fit results, the limits of our knowledge regarding the practical implications of model misfit, and the importance in the measurement of HRQOL of construct definition. With respect to these lessons, areas for future research are suggested. The feasibility of developing item banks for broad definitions of health is discussed.},
  affiliation = {Department of Rehabilitation Medicine, University of Washington School of Medicine, Seattle, Washington, USA. karonc2@u.washington.edu},
  pages = {121--32},
  volume = {16 Suppl 1},
  year = {2007},
  month = {Jan},
  language = {eng},
  keywords = {Health Status, Psychometrics, Outcome Assessment (Health Care), Software, Stress: Psychological, Female, Data Interpretation: Statistical, HIV Infections, Humans, Quality of Life, Neoplasms, Male, Questionnaires},
  date-added = {2010-04-10 03:34:05 +0200},
  date-modified = {2010-07-29 19:48:28 +0200},
  doi = {10.1007/s11136-007-9177-5},
  pmid = {17351824},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Cook-2007-Qual%20Life%20Res_IRT%20health%20outcomes.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p10853},
  rating = {4}
}
@article{Perry:2008p11963,
  author = {Jennifer L Perry and Marilyn E Carroll},
  journal = {Psychopharmacology (Berl)},
  title = {The role of impulsive behavior in drug abuse},
  abstract = {BACKGROUND: Impulsivity is a multifaceted construct that has recently been recognized as a factor contributing to enhanced vulnerability to drug abuse. OBJECTIVES: In the present review, we focus on two facets of impulsivity (and tasks that measure them): (1) impulsive choice (delay discounting task) and (2) inhibitory failure (go/no-go, stop signal reaction time, and five-choice serial reaction time tasks). We also describe how performance on each of these tasks is associated with drug-related behavior during phases of drug abuse that capture the essential features of addiction (acquisition, escalation, and reinstatement of drug-seeking after drug access has terminated). Three hypotheses (H) regarding the relationship between impulsivity and drug abuse are discussed: (1) increased levels of impulsivity lead to drug abuse (H1), (2) drugs of abuse increase impulsivity (H2), and (3) impulsivity and drug abuse are associated through a common third factor (H3). CONCLUSION: Impulsivity expressed as impulsive choice or inhibitory failure plays a role in several key transition phases of drug abuse. There is evidence to support all three nonexclusive hypotheses. Increased levels of impulsivity lead to acquisition of drug abuse (H1) and subsequent escalation or dysregulation of drug intake. Drugs of abuse may increase impulsivity (H2), which is an additional contributor to escalation/dysregulation. Abstinence, relapse, and treatment may be influenced by both H1 and H2. In addition, there is a relationship between impulsivity and other drug abuse vulnerability factors, such as sex, hormonal status, reactivity to nondrug rewards, and early environmental experiences that may impact drug intake during all phases of addiction (H3). Relating drug abuse and impulsivity in phases of addiction via these three hypotheses provides a heuristic model from which future experimental questions can be addressed.},
  affiliation = {Minneapolis Medical Research Foundation, S-3, 860, 914 South 8th Street, Minneapolis, MN 55404, USA. perry050@umm.edu},
  number = {1},
  pages = {1--26},
  volume = {200},
  year = {2008},
  month = {Sep},
  language = {eng},
  keywords = {Humans, Risk Factors, Task Performance and Analysis, Impulsive Behavior, Behavior: Addictive, Animals, Reward, Inhibition (Psychology), Sex Factors, Reaction Time, Substance-Related Disorders},
  date-added = {2010-05-23 17:17:34 +0200},
  date-modified = {2010-05-23 17:17:39 +0200},
  doi = {10.1007/s00213-008-1173-0},
  pmid = {18600315},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Perry-2008-Psychopharmacology%20(Berl)_The%20role%20of%20impulsiv.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11963},
  rating = {5}
}
@article{Saucier:1996p13846,
  author = {G Saucier and L R Goldberg},
  title = {The Language af Personality: Lexical Perspectives on the Five-Factor Model},
  year = {1996},
  date-added = {2010-07-29 17:22:06 +0200},
  date-modified = {2010-07-29 17:22:59 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Saucier-1996-_The%20Language%20af%20Pers.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13846},
  rating = {0}
}
@article{Liu:2008p1567,
  author = {J Liu and O Demirci and V D Calhoun},
  journal = {IEEE Signal Processing Letters},
  title = {A Parallel Independent Component Analysis
Approach to Investigate Genomic Influence
on Brain Function},
  abstract = {Relationships between genomic data and functional brain images are of great interest but require new analysis ap- proaches to integrate the high-dimensional data types. This letter presents an extension of a technique called parallel independent component analysis (paraICA), which enables the joint analysis of multiple modalities including interconnections between them. We extend our earlier work by allowing for multiple interconnections and by providing important overfitting controls. Performance was assessed by simulations under different conditions, and indicated reliable results can be extracted by properly balancing overfitting and underfitting. An application to functional magnetic resonance images and single nucleotide polymorphism array produced inter- esting findings.},
  pages = {413--416},
  volume = {15},
  year = {2008},
  date-added = {2010-01-07 16:53:13 +0100},
  date-modified = {2010-01-07 16:54:51 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Liu-2008-IEEE%20Signal%20Processing%20Letters_A%20Parallel%20Independe.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1567},
  rating = {0}
}
@article{vanGinkel:2010p6244,
  author = {J R van Ginkel and K Sijtsma and L Andries van der Ark and J K Vermunt},
  journal = {Methodology},
  title = {Incidence of Missing Item Scores in Personality Measurement, and Simple Item-Score Imputation},
  abstract = {The focus of this study was the incidence of different kinds of missing-data problems in personality research and the handling of these problems. Missing-data problems were reported in approximately half of more than 800 articles published in three leading personality journals. In these articles, unit nonresponse, attrition, and planned missingness were distinguished but missing item scores in trait measurement were reported most frequently. Listwise deletion was the most frequently used method for handling all missing-data problems. Listwise deletion is known to reduce the accuracy of parameter estimates and the power of statistical tests and often to produce biased statistical analysis results. This study proposes a simple alternative method for handling missing item scores, known as two-way imputation, which leaves the sample size intact and has been shown to produce almost unbiased results based on multi-item questionnaire data.},
  number = {1},
  pages = {17--30},
  volume = {6},
  year = {2010},
  date-added = {2010-02-19 21:20:16 +0100},
  date-modified = {2010-07-29 20:42:55 +0200},
  doi = {10.1027/1614-2241/a000003},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/van%20Ginkel-2010-Methodology_Incidence%20of%20Missing.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6244},
  read = {Yes},
  rating = {0}
}
@article{Yu:2005,
  author = {C H Yu and S E O Popp},
  journal = {Practical Assessment Research \{\&} Evaluation},
  title = {Test Equating by Common Items and Common Subjects: Concepts and Applications},
  number = {4},
  volume = {10},
  year = {2005},
  date-added = {2010-01-10 11:33:09 +0100},
  date-modified = {2010-07-29 19:44:42 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Yu-2005-Practical%20Assessment%20Research%20%20&%20Evaluation_Test%20Equating%20by%20Com.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2047},
  rating = {0}
}
@article{Kimmel:2007p3359,
  author = {Gad Kimmel and Michael I Jordan and Eran Halperin and Ron Shamir and Richard M Karp},
  journal = {Am J Hum Genet},
  title = {A randomization test for controlling population stratification in whole-genome association studies},
  abstract = {Population stratification can be a serious obstacle in the analysis of genomewide association studies. We propose a method for evaluating the significance of association scores in whole-genome cohorts with stratification. Our approach is a randomization test akin to a standard permutation test. It conditions on the genotype matrix and thus takes into account not only the population structure but also the complex linkage disequilibrium structure of the genome. As we show in simulation experiments, our method achieves higher power and significantly better control over false-positive rates than do existing methods. In addition, it can be easily applied to whole-genome association studies.},
  affiliation = {Computer Science Division, University of California Berkeley, Berkeley, CA 94720, USA. kimmel@cs.berkeley.edu},
  number = {5},
  pages = {895--905},
  volume = {81},
  year = {2007},
  month = {Nov},
  language = {eng},
  keywords = {Models: Genetic, Genetic Predisposition to Disease, Genome: Human, Polymorphism: Single Nucleotide, Algorithms, Humans, Databases: Genetic},
  date-added = {2010-01-15 14:37:37 +0100},
  date-modified = {2010-01-15 14:37:38 +0100},
  doi = {10.1086/521372},
  pii = {S0002-9297(07)63867-1},
  pmid = {17924333},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3359},
  rating = {0}
}
@article{Endres:2006p3992,
  author = {Heinz G Endres and Christian Hucke and Tim Holland-Letz and Hans-Joachim Trampisch},
  journal = {BMC Cardiovasc Disord},
  title = {A new efficient trial design for assessing reliability of ankle-brachial index measures by three different observer groups},
  abstract = {BACKGROUND: The usual method of assessing the variability of a measure such as the ankle brachial index (ABI) as a function of different observer groups is to obtain repeated measurements. Because the number of possible observer-subject combinations is impractically large, only a few small studies on inter- and intraobserver variability of ABI measures have been carried out to date. The present study proposes a new and efficient study design. This paper describes the study methodology. METHODS: Using a partially balanced incomplete block design, six angiologists, six primary-care physicians and six trained medical office assistants performed two ABI measurements each on six individuals from a group of 36 unselected subjects aged 65-70 years. Each test subject is measured by one observer from each of the three observer groups, and each observer measures exactly six of the 36 subjects in the group. Each possible combination of two observers occurs exactly once per patient and is not repeated on a second subject. The study involved four groups of 36 subjects (144), plus standbys. RESULTS: The 192 volunteers present at the study day were similar in terms of demographic characteristics and vascular risk factors: mean age 68.6 +/- 1.7; mean BMI 29.1 +/- 4.6; mean waist-hip ratio 0.92 +/- 0.09; active smokers 12%; hypertension 60.9%; hypercholesterolemia 53.4%; diabetic 17.2%. A complete set of ABI measurements (three observers performing two Doppler measurements each) was obtained from 108 subjects. From all other subjects at least one ABI measurement was obtained. The mean ABI was 1.08 (+/- 0.13), 15 (7.9%) volunteers had an ABI < 0.9, and none had an ABI > 1.4, i.e. a ratio that may be associated with increased stiffening of the arterial walls. CONCLUSION: This is the first large-scale study investigating the components of variability and thus reliability in ABI measurements. The advantage of the new study design introduced here is that only one sixth of the number of theoretically possible measurements is required to obtain information about measurement errors. Bland-Altman plots show that there are only small differences and no systematic bias between the observers from three occupational groups with different training backgrounds.},
  affiliation = {Department of Medical Informatics, Biometry and Epidemiology, Ruhr-University, Bochum, D-44801 Bochum, Germany. heinz.endres@ruhr-uni-bochum.de},
  pages = {33},
  volume = {6},
  year = {2006},
  month = {Jan},
  language = {eng},
  keywords = {Blood Pressure, Ankle, Brachial Artery, Regional Blood Flow, Humans, Peripheral Vascular Diseases, Observer Variation, Female, Male, Research Design, Aged, Reproducibility of Results},
  date-added = {2010-01-17 23:23:50 +0100},
  date-modified = {2010-01-17 23:23:50 +0100},
  doi = {10.1186/1471-2261-6-33},
  pii = {1471-2261-6-33},
  pmid = {16872534},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Endres-2006-BMC%20Cardiovasc%20Disord_A%20new%20efficient%20tria.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3992},
  rating = {0}
}
@article{Smits:2006p12894,
  author = {D J M Smits and Paul De Boeck},
  journal = {European Journal of Personality},
  title = {From BIS/BAS to the Big Five},
  abstract = {Gray (1987) proposed two systems that underlie much of our behaviour and personality. One system relates to avoidance or withdrawal behaviour, called the Behavioural Inhibition System (BIS), whereas the other system relates to approach behaviour, called the Behavioural Approach System (BAS). In two samples, it was investigated whether individual differences in surface of personality as described by the Big Five can be explained by BIS/BAS. Neuroticism and Extraversion could be explained well by BIS/BAS, but also for Agreeableness and Conscientiousness consistent findings were obtained.},
  pages = {255--270},
  volume = {20},
  year = {2006},
  date-added = {2010-06-24 13:44:46 +0200},
  date-modified = {2010-07-29 20:46:12 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Smits-2006-European%20Journal%20of%20Personality_From%20BISBAS%20to%20the.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12894},
  rating = {5}
}
@article{Parmigiani:2007p3298,
  author = {G Parmigiani and J Lin and S Boca and T Sjoblom and K W Kinzler and V E Velculescu and B Vogelstein},
  journal = {Johns Hopkins University, Dept. of Biostatistics Working Papers},
  title = {STATISTICAL METHODS FOR THE ANALYSIS OF CANCER GENOME SEQUENCING DATA},
  abstract = {The purpose of cancer genome sequencing studies is to determine the nature and types of alterations present in a typical cancer and to discover genes mutated at high frequencies. In this article we discuss statistical methods for the analysis of data generated in these studies. We place special emphasis on a two-stage study design introduced by Sjoblom et al.[1]. In this context, we describe statistical methods for constructing scores that can be used to prioritize candidate genes for further investigation and to assess the statistical signicance of the candidates thus identfied.},
  number = {126},
  year = {2007},
  date-added = {2010-01-14 21:26:56 +0100},
  date-modified = {2010-01-14 21:27:51 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Parmigiani-2007-Johns%20Hopkins%20University%20Dept.%20of%20Biostatistics%20Working%20Papers_STATISTICAL%20METHODS.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3298},
  rating = {0}
}
@article{Parker:2009p3157,
  author = {Michael Parker and Susan J Bull and Jantina de Vries and Tsiri Agbenyega and Ogobara K Doumbo and Dominic P Kwiatkowski},
  journal = {PLoS Med},
  title = {Ethical data release in genome-wide association studies in developing countries},
  affiliation = {Ethox Centre, University of Oxford, Oxford, United Kingdom. michael.parker@ethox.ox.ac.uk},
  number = {11},
  pages = {e1000143},
  volume = {6},
  year = {2009},
  month = {Nov},
  language = {eng},
  date-added = {2010-01-14 20:23:25 +0100},
  date-modified = {2010-07-29 19:43:47 +0200},
  doi = {10.1371/journal.pmed.1000143},
  pmid = {19956792},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Parker-2009-PLoS%20Med_Ethical%20data%20release.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3157},
  rating = {0}
}
@article{Brauer:2005p3653,
  author = {M Brauer and G McClelland},
  journal = {L'Ann{\'e}e psychologique},
  title = {L'utilisation des contrastes dans l'analyse des donn{\'e}es : Comment tester les hypoth{\`e}ses sp{\'e}cifiques dans la recherche en psychologie ?},
  abstract = {Les tests omnibus plusieurs degr{\'e}s de libert{\'e}s ne fournissent que des r{\'e}ponses vagues alors que la plupart des hypoth{\`e}ses que nous d{\'e}rivons de nos mod{\`e}les th{\'e}oriques/ont des pr{\'e}dictions relativement pr{\'e}cises Pour r{\'e}pondre ce niveau de pr{\'e}cision nous sugg{\'e}rons de tester des contrastes sp{\'e}cifiques plut{\^o}t que effectuer des tests omnibus Deux conditions se doivent {\^e}tre satisfaites avant que on puisse affirmer un contraste donn{\'e} est une description parci monieuse des moyennes observ{\'e}es le contraste lui-m{\^e}me doit expliquer une partie significative de la variance et si on contr{\^o}le statistiquement les effets de ce contraste la variance intergroupe r{\'e}siduelle doit {\^e}tre non significa tive aide exemples concrets article pr{\'e}sente les analyses permettant de tester ces deux conditions avec diff{\'e}rents plans exp{\'e}rimentaux Mots cl{\'e}s contraste test omnibus variance r{\'e}siduelle degr{\'e} de liberte},
  number = {2},
  pages = {273--305},
  volume = {105},
  year = {2005},
  date-added = {2010-01-16 20:04:26 +0100},
  date-modified = {2010-07-29 19:38:38 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Brauer-2005-L'Ann%C3%A9e%20psychologique_L'utilisation%20des%20co-1.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3653},
  rating = {0}
}
@techreport{Klein:2005,
  author = {John P Klein and Niels Keiding and Svend Kreiner},
  journal = {Techreport},
  title = {Graphical models for panel studies, illustrated on data from the framingham heart study},
  affiliation = {Department of Biostatistics, University of Copenhagen},
  year = {2005},
  date-added = {2010-01-10 11:33:25 +0100},
  date-modified = {2010-01-10 11:33:25 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Klein-2005-Techreport_Graphical%20models%20for.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2212},
  rating = {0}
}
@article{King:2004p7022,
  author = {G King and C J L Murray and J A Salomon and A Tandon},
  journal = {American Political Science Review},
  title = {Enhancing the Validity and Cross-Cultural Comparability of Measurement in Survey Research},
  abstract = {We address two long-standing survey research problems: measuring complicated concepts, such as political freedom and efficacy, that researchers define best with reference to examples; and what to do when respondents interpret identical questions in different ways. Scholars have long addressed these problems with approaches to reduce incomparability, such as writing more concrete questions---with uneven success. Our alternative is to measure directly response category incomparability and to correct for it. We measure incomparability via respondents' assessments, on the same scale as the self-assessments to be corrected, of hypothetical individuals described in short vignettes. Because the actual (but not necessarily reported) levels of the vignettes are invariant over respondents, variability in vignette answers reveals incomparability. Our corrections require either simple recodes or a statistical model designed to save survey administration costs. With analysis, simulations, and cross-national surveys, we show how response incomparability can drastically mislead survey researchers and how our approach can alleviate this problem.},
  number = {1},
  pages = {191--207},
  volume = {98},
  year = {2004},
  date-added = {2010-03-06 19:57:31 +0100},
  date-modified = {2010-03-06 19:58:27 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/King-2004-American%20Political%20Science%20Review_Enhancing%20the%20Validi.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7022},
  rating = {0}
}
@article{Boulesteix:2007p460,
  author = {Anne-Laure Boulesteix},
  journal = {Bioinformatics},
  title = {WilcoxCV: an R package for fast variable selection in cross-validation},
  abstract = {In the last few years, numerous methods have been proposed for microarray-based class prediction. Although many of them have been designed especially for the case n << p (much more variables than observations), preliminary variable selection is almost always necessary when the number of genes reaches several tens of thousands, as usual in recent data sets. In the two-class setting, the Wilcoxon rank sum test statistic is, with the t-statistic, one of the standard approaches for variable selection. It is well known that the variable selection step must be seen as a part of classifier construction and, as such, be performed based on training data only. When classifier accuracy is evaluated via cross-validation or Monte-Carlo cross-validation, it means that we have to perform p Wilcoxon or t-tests for each iteration, which becomes a daunting task for increasing p. As a consequence, many authors often perform variable selection only once using all the available data, which can induce a dramatic underestimation of error rate and thus lead to misleadingly reporting predictive power. We propose a very fast implementation of variable selection based on the Wilcoxon test for use in cross-validation and Monte Carlo cross-validation (also known as random splitting into learning and test sets). This implementation is based on a simple mathematical formula using only the ranks calculated from the original data set. Availability: Our method is implemented in the freely available R package WilcoxCV which can be downloaded from the Comprehensive R Archive Network at http://cran.r-project.org/src/contrib/Descriptions/WilcoxCV.html.},
  affiliation = {Sylvia Lawry Centre for Multiple Sclerosis Research, Hohenlindenerstr. 1, D-81677 Munich, Germany. boulesteix@slcmsr.org},
  number = {13},
  pages = {1702--4},
  volume = {23},
  year = {2007},
  month = {Jul},
  language = {eng},
  keywords = {Data Interpretation: Statistical, Reproducibility of Results, Gene Expression Profiling, Sensitivity and Specificity, Oligonucleotide Array Sequence Analysis, Statistics: Nonparametric, Software, Algorithms},
  date-added = {2010-01-03 12:29:15 +0100},
  date-modified = {2010-01-03 12:29:15 +0100},
  doi = {10.1093/bioinformatics/btm162},
  pii = {btm162},
  pmid = {17495999},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Boulesteix-2007-Bioinformatics_WilcoxCV%20an%20R%20packa.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p460},
  rating = {0}
}
@techreport{Diaz:2006a,
  author = {T E Diaz and H A Le and L L Wise},
  journal = {Techreport},
  title = {NAEP-QA FY06 Special Study: 12th Grade Math Trend Estimates},
  affiliation = {US Department of Education},
  year = {2006},
  date-added = {2010-01-10 11:33:10 +0100},
  date-modified = {2010-01-10 11:33:25 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Diaz-2006-Techreport_NAEP-QA%20FY06%20Special.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2132},
  read = {Yes},
  rating = {0}
}
@article{Krabbe:1999p7243,
  author = {P F Krabbe and M E Stouthard and M L Essink-Bot and G J Bonsel},
  journal = {Journal of Clinical Epidemiology},
  title = {The effect of adding a cognitive dimension to the EuroQol multiattribute health-status classification system},
  abstract = {A methodological study was conducted to examine the effect of extending a frequently used simple multiattribute health-status classification system by adding a cognitive dimension. The EQ-5D questionnaire is a generic instrument to value health, developed by the EuroQol Group. The EQ-5D defines health according to five dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. We defined 18 different health states according to the standard EQ-5D classification. A second set of health states was constructed similar to the first, except for the addition of a cognitive dimension (EQ-5D+C). Valuations of both sets of health states were statistically analyzed to detect the effect of the additional dimension. The cognitive dimension generated systematically different values compared with the standard EQ-5D version, whereas the content validity improved. Both systems evoked equally reliable values. Analyses showed that a simple additive model to predict summary values for health states was not optimal for both systems. Although there is a current lack of consensus regarding the domains that are selected to represent health status, this study has shown the importance of considering the inclusion of a cognitive domain.},
  affiliation = {Department of Public Health, Faculty of Medicine, Erasmus University, Rotterdam, The Netherlands.},
  number = {4},
  pages = {293--301},
  volume = {52},
  year = {1999},
  month = {Apr},
  language = {eng},
  keywords = {Pain, Research Design, Questionnaires, Cognition, Reproducibility of Results, Activities of Daily Living, Female, Adult, Humans, Male, Health Status Indicators, Anxiety},
  date-added = {2010-03-10 20:12:20 +0100},
  date-modified = {2010-03-10 20:12:20 +0100},
  pii = {S0895-4356(98)00163-2},
  pmid = {10235169},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Krabbe-1999-Journal%20of%20Clinical%20Epidemiology_The%20effect%20of%20adding.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7243},
  rating = {0}
}
@article{Muthen:1989p13808,
  author = {B Muth{\'e}n},
  journal = {British Journal of Mathematical {\&} Statistical Psychology},
  title = {Multiple-group structural modelling with non-normal continuous variables},
  pages = {55--62},
  volume = {42},
  year = {1989},
  date-added = {2010-07-29 12:26:00 +0200},
  date-modified = {2010-07-29 19:22:12 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Muth%C3%A9n-1989-British%20Journal%20of%20Mathematical%20&%20Statistical%20Psychology_Multiple-group%20struc.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13808},
  rating = {0}
}
@article{Patrick:2000p8803,
  author = {D L Patrick and Y P Chiang},
  journal = {Med Care},
  title = {Measurement of health outcomes in treatment effectiveness evaluations: conceptual and methodological challenges},
  abstract = {Major challenges in the evaluation of the "end results" of health services include ensuring that concepts are correctly defined and measured, that the validity of measures used in different applications and populations is well documented, and that observed effects can be clearly interpreted. Health status is the most widely interpretable concept to apply in the context of health services. Quality of life connotes inclusion of the environment outside the context of the person and of health care and may or may not be health related, depending on the evaluation context and the impact of disease and treatment. All concepts and constructs must be defined in reference to their theoretical origin and to a model of relationships among different concepts. Modern test theory offers the potential for individualized, comparable assessments and for the careful examination and application of different measurement models. Selection and critique of measures should be based on the intended application and accumulated evidence for that application. Thus, there are no valid instruments per se. Validity in use, including responsiveness, interpretation of effects, and generalizability to diverse populations, is the most important measurement characteristic for treatment effectiveness. An evaluation of the validity of preference-based measures is particularly important for the interpretation and comparability of outcomes in cost-effectiveness evaluations. The successful translation of research into policy and practice is limited by the extent to which these critical issues are addressed in actual treatment evaluations.},
  affiliation = {Department of Health Services, University of Washington, Seattle 98195-7600, USA. donald@u.washington.edu},
  number = {9 Suppl},
  pages = {II14--25},
  volume = {38},
  year = {2000},
  month = {Sep},
  language = {eng},
  keywords = {Treatment Outcome, Humans, Randomized Controlled Trials as Topic, Research Design, Psychometrics, Health Status, Quality of Life, Evaluation Studies as Topic, Reproducibility of Results, Outcome Assessment (Health Care), Health Services Research},
  date-added = {2010-03-22 12:08:22 +0100},
  date-modified = {2010-07-29 19:39:29 +0200},
  pmid = {10982087},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8803},
  rating = {0}
}
@misc{Jackel:2003,
  author = {P J{\"a}ckel},
  journal = {Miscellaneous},
  title = {A note on multivariate Gauss-Hermite quadrature},
  year = {2003},
  date-added = {2010-01-10 11:33:22 +0100},
  date-modified = {2010-01-10 11:33:25 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/J%C3%A4ckel-2003-Miscellaneous_A%20note%20on%20multivaria.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1992},
  rating = {0}
}
@article{Hinrichs:2009p824,
  author = {Anthony L Hinrichs and Emma K Larkin and Brian K Suarez},
  journal = {Genet Epidemiol},
  title = {Population stratification and patterns of linkage disequilibrium},
  abstract = {Although the importance of selecting cases and controls from the same population has been recognized for decades, the recent advent of genome-wide association studies has heightened awareness of this issue. Because these studies typically deal with large samples, small differences in allele frequencies between cases and controls can easily reach statistical significance. When, unbeknownst to a researcher, cases and controls have different substructures, the number of false-positive findings is inflated. There have been three recent developments of purely statistical approaches to assessing the ancestral comparability of case and control samples: genomic control, structured association, and multivariate reduction analyses. The widespread use of high-throughput technology has allowed the quick and accurate genotyping of the large number of markers required by these methods. Group 13 dealt with four population stratification issues: single-nucleotide polymorphism marker selection, association testing, nonstandard methods, and linkage disequilibrium calculations in stratified or mixed ethnicity samples. We demonstrated that there are continuous axes of ethnic variation in both data sets of Genetic Analysis Workshop 16. Furthermore, ignoring this structure created P-value inflation for a variety of phenotypes. Principal-components analysis (or multidimensional scaling) can control inflation as covariates in a logistic regression. One can weigh for local ancestry estimation and allow the use of related individuals. Problems arise in the presence of extremely high association or unusually strong linkage disequilibrium (e.g., in chromosomal inversions). Our group also reported a method for performing an association test controlling for substructure, when genome-wide markers are not available, to explicitly compute stratification.},
  affiliation = {Department of Psychiatry, Washington University School of Medicine, St. Louis, Missouri 63110, USA. tony@fire.wustl.edu},
  pages = {S88--92},
  volume = {33 Suppl 1},
  year = {2009},
  month = {Jan},
  language = {eng},
  date-added = {2010-01-03 17:48:03 +0100},
  date-modified = {2010-01-03 17:48:03 +0100},
  doi = {10.1002/gepi.20478},
  pmid = {19924707},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p824},
  rating = {0}
}
@article{Charland:1996,
  author = {H Charland and G C{\^o}t{\'e}},
  journal = {Revue qu{\'e}b{\'e}coise de psychologie},
  title = {Fid{\'e}lit{\'e} et validit{\'e} de la version fran{\c c}aise du "Children of Alcoholics Screening Test" (CAST)},
  number = {1},
  pages = {45--62},
  volume = {17},
  year = {1996},
  date-added = {2010-01-10 11:33:21 +0100},
  date-modified = {2010-01-10 11:33:25 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Charland-1996-Revue%20qu%C3%A9b%C3%A9coise%20de%20psychologie_Fid%C3%A9lit%C3%A9%20et%20validit%C3%A9.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1982},
  rating = {0}
}
@article{Bech:2008p6718,
  author = {P Bech},
  journal = {European Psychiatric Review},
  title = {The Use of Rating Scales in Affective Disorders},
  pages = {14--18},
  year = {2008},
  date-added = {2010-03-05 22:11:14 +0100},
  date-modified = {2010-03-05 22:14:26 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Bech-2008-European%20Psychiatric%20Review_The%20Use%20of%20Rating%20Sc.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6718},
  rating = {3}
}
@article{Vermunt:2001a,
  author = {J K Vermunt and M F Rodrigo and M Ato-Garcia},
  journal = {Sociological Methods {\&} Research},
  title = {Modeling joint and marginal distributions in the analysis of categorical panel data},
  pages = {170--196},
  volume = {30},
  year = {2001},
  date-added = {2010-01-10 11:33:22 +0100},
  date-modified = {2010-07-29 19:50:37 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Vermunt-2001-Sociological%20Methods%20&%20Research_Modeling%20joint%20and%20m.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2127},
  rating = {0}
}
@article{Wrobel:2005p11909,
  author = {Gunnar Wrobel and Fr{\'e}d{\'e}ric Chalmel and Michael Primig},
  journal = {Bioinformatics},
  title = {goCluster integrates statistical analysis and functional interpretation of microarray expression data},
  abstract = {MOTIVATION: Several tools that facilitate the interpretation of transcriptional profiles using gene annotation data are available but most of them combine a particular statistical analysis strategy with functional information. goCluster extends this concept by providing a modular framework that facilitates integration of statistical and functional microarray data analysis with data interpretation. RESULTS: goCluster enables scientists to employ annotation information, clustering algorithms and visualization tools in their array data analysis and interpretation strategy. The package provides four clustering algorithms and GeneOntology terms as prototype annotation data. The functional analysis is based on the hypergeometric distribution whereby the Bonferroni correction or the false discovery rate can be used to correct for multiple testing. The approach implemented in goCluster was successfully applied to interpret the results of complex mammalian and yeast expression data obtained with high density oligonucleotide microarrays (GeneChips). AVAILABILITY: goCluster is available via the BioConductor portal at www.bioconductor.org. The software package, detailed documentation, user- and developer guides as well as other background information are also accessible via a web portal at http://www.bioz.unibas.ch/gocluster CONTACT: michael.primig@unibas.ch},
  affiliation = {Biozentrum and Swiss Institute of Bioinformatics, Klingelbergstrasse 50-70, CH-4056 Basel, Switzerland.},
  number = {17},
  pages = {3575--7},
  volume = {21},
  year = {2005},
  month = {Sep},
  language = {eng},
  keywords = {Software, Oligonucleotide Array Sequence Analysis, Systems Integration, Algorithms, Computer Simulation, Gene Expression Profiling, Cluster Analysis, Artificial Intelligence, Models: Statistical, Models: Genetic, Pattern Recognition: Automated},
  date-added = {2010-05-23 11:56:01 +0200},
  date-modified = {2010-05-23 11:56:09 +0200},
  doi = {10.1093/bioinformatics/bti574},
  pii = {bti574},
  pmid = {16020468},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Wrobel-2005-Bioinformatics_goCluster%20integrates.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11909},
  rating = {3}
}
@article{Cacioppo:2009p12792,
  author = {J T Cacioppo and J Decety},
  journal = {Perspectives on Psychological Science},
  title = {What Are the Brain Mechanisms on Which Psychological Processes Are Based?},
  abstract = {That the human brain is the organ of the mind is not in dispute, but we know remarkably little about the brain mechanisms underlying the mind. What are the functional structures and computational processes of the human brain that subserve cognition, emotion, and be- havior? Given the complexity of the human brain, progress in understanding the functional organization and struc- ture of the human brain depends on sophisticated theo- retical specifications of the psychological representations and processes that differentiate two or more comparison conditions. Psychological scientists, therefore, are well positioned to lead the search for brain mechanisms un- derlying psychological processes. Doing so constitutes an expansion of the purview of psychological science beyond a science of behavior, and beyond a science of the mind, to include a science of the brain. Such an expansion of the mission of psychological science has implications for the infrastructure and training needs of the discipline.},
  number = {1},
  pages = {10--18},
  volume = {4},
  year = {2009},
  date-added = {2010-06-18 21:10:42 +0200},
  date-modified = {2010-06-18 21:13:15 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Cacioppo-2009-Perspectives%20on%20Psychological%20Science_What%20Are%20the%20Brain%20M.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12792},
  rating = {0}
}
@article{Degenholtz:2006p3502,
  author = {H B Degenholtz and M J Miller and R A Kane and L J Cutler and R L Kane},
  journal = {Journal of Housing for the Elderly},
  title = {Developing a Typology of Nursing Home Environmentsv},
  number = {1/2},
  pages = {5--29},
  volume = {20},
  year = {2006},
  date-added = {2010-01-15 15:33:01 +0100},
  date-modified = {2010-01-15 15:34:37 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Degenholtz-2006-Journal%20of%20Housing%20for%20the%20Elderly_Developing%20a%20Typolog.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3502},
  rating = {0}
}
@article{Lantieri:2009p3375,
  author = {Francesca Lantieri and Min A Jhun and Jungsun Park and Taesung Park and Marcella Devoto},
  journal = {BMC Proc},
  title = {Comparative analysis of different approaches for dealing with candidate regions in the context of a genome-wide association study},
  abstract = {ABSTRACT : Genome-wide association studies (GWAS) test hundreds of thousands of single-nucleotide polymorphisms (SNPs) for association to a trait, treating each marker equally and ignoring prior evidence of association to specific regions. Typically, promising regions are selected for further investigation based on p-values obtained from simple tests of association. However, loci that exert only a weak, low-penetrant role on the trait, producing modest evidence of association, are not detectable in the context of a GWAS. Implementing prior knowledge of association in GWAS could increase power, help distinguish between false and true positives, and identify better sets of SNPs for follow-up studies.Here we performed a GWAS on rheumatoid arthritis (RA) patients and controls (Problem 1, Genetic Analysis Workshop 16). In order to include prior information in the analysis, we applied four methods that distinctively deal with markers in candidate genes in the context of GWAS. SNPs were divided into a random and a candidate subset, then we applied empirical correction by permutation, false-discovery rate, false-positive report probability, and posterior odds of association using different prior probabilities. We repeated the same analyses on two different sets of candidate markers defined on the basis of previously reported association to RA following two different approaches. The four methods showed similar relative behavior when applied to the two sets, with the proportion of candidate SNPs ranked among the top 2,000 varying from 0 to 100%. The use of different prior probabilities changed the stringency of the methods, but not their relative performance.},
  affiliation = {The Children's Hospital of Philadelphia, 3615 Civic Center Boulevard, Philadelphia, Pennsylvania 19104, USA. f.lantieri@unige.it.},
  pages = {S93},
  volume = {3 Suppl 7},
  year = {2009},
  month = {Jan},
  language = {eng},
  date-added = {2010-01-15 14:41:02 +0100},
  date-modified = {2010-01-15 14:41:05 +0100},
  pmid = {20018090},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3375},
  rating = {3}
}
@article{Nicodemus:2010p5843,
  author = {Kristin K Nicodemus and Joseph H Callicott and Rachel G Higier and Augustin Luna and Devon C Nixon and Barbara K Lipska and Radhakrishna Vakkalanka and Ina Giegling and Dan Rujescu and David St Clair and Pierandrea Muglia and Yin Yao Shugart and Daniel R Weinberger},
  journal = {Hum Genet},
  title = {Erratum to: Evidence of statistical epistasis between DISC1, CIT and NDEL1 impacting risk for schizophrenia: biological validation with functional neuroimaging},
  affiliation = {Genes, Cognition and Psychosis Program, Intramural Research Program, National Institute of Mental Health, National Institutes of Health, Room 4S-235, 10 Center Drive, Bethesda, MD, 20892, USA, kristin.nicodemus@well.ox.ac.uk.},
  pages = {},
  year = {2010},
  month = {Feb},
  language = {ENG},
  date-added = {2010-02-17 10:18:16 +0100},
  date-modified = {2010-07-29 19:28:44 +0200},
  doi = {10.1007/s00439-010-0793-8},
  pmid = {20127117},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5843},
  rating = {0}
}
@article{vanderSluis:2008p9132,
  author = {Sophie van der Sluis and Gonneke Willemsen and Eco J C de Geus and Dorret I Boomsma and Danielle Posthuma},
  journal = {Behav Genet},
  title = {Gene-environment interaction in adults' IQ scores: measures of past and present environment},
  abstract = {Gene-environment interaction was studied in a sample of young (mean age 26 years, N = 385) and older (mean age 49 years, N = 370) adult males and females. Full scale IQ scores (FSIQ) were analyzed using biometric models in which additive genetic (A), common environmental (C), and unique environmental (E) effects were allowed to depend on environmental measures. Moderators under study were parental and partner educational level, as well as urbanization level and mean real estate price of the participants' residential area. Mean effects were observed for parental education, partner education and urbanization level. On average, FSIQ scores were roughly 5 points higher in participants with highly educated parents, compared to participants whose parents were less well educated. In older participants, IQ scores were about 2 points higher when their partners were highly educated. In younger males, higher urbanization levels were associated with slightly higher FSIQ scores. Our analyses also showed increased common environmental variation in older males whose parents were more highly educated, and increased unique environmental effects in older males living in more affluent areas. Contrary to studies in children, however, the variance attributable to additive genetic effects was stable across all levels of the moderators under study. Most results were replicated for VIQ and PIQ.},
  affiliation = {Department of Biological Psychology, VU University Amsterdam, Van der Boechorststraat 1, Amsterdam 1081 BT, The Netherlands. s.van.der.sluis@psy.vu.nl},
  number = {4},
  pages = {348--60},
  volume = {38},
  year = {2008},
  month = {Jul},
  language = {eng},
  keywords = {Intelligence, Models: Biological, Speech, Twins: Dizygotic, Twins: Monozygotic, Adult, Models: Genetic, Male, Intelligence Tests, Psychometrics, Netherlands, Female, Environment, Humans},
  date-added = {2010-03-22 13:27:48 +0100},
  date-modified = {2010-07-29 20:09:06 +0200},
  doi = {10.1007/s10519-008-9212-5},
  pmid = {18535898},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/van%20der%20Sluis-2008-Behav%20Genet_Gene-environment%20int.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p9132},
  rating = {0}
}
@article{Dray:2008p809,
  author = {St{\'e}phane Dray},
  journal = {Computational Statistics},
  title = {On the number of principal components: A test of dimensionality based on measurements of similarity between matrices},
  abstract = {An important problem in principal component analysis (PCA) is the estimation of the correct number of components to retain. PCA is most often used to reduce a set of observed variables to a new set of variables of lower dimensionality. The choice of this dimensionality is a crucial step for the interpretation of results or subsequent analyses, because it could lead to a loss of information (underestimation) or the introduction of random noise (overestimation). New techniques are proposed to evaluate the dimensionality in PCA. They are based on similarity measurements, singular value decomposition and permutation procedures. A simulation study is conducted to evaluate the relative merits of the proposed approaches. Results showed that one method based on the RV coefficient is very accurate and seems to be more efficient than other existing approaches.},
  affiliation = {Laboratoire de Biom{\'e}trie et Biologie Evolutive, Universit{\'e} de Lyon; Universit{\'e} Lyon 1; CNRS; UMR 5558,
43 boulevard du 11 novembre 1918, Villeurbanne F-69622, France},
  pages = {2228--2237},
  volume = {52},
  year = {2008},
  month = {Oct},
  keywords = {Simulation study, Permutation procedure, Co-inertia criterion, Singular value decomposition, RV coefficient, Stopping rules},
  date-added = {2010-01-03 17:15:42 +0100},
  date-modified = {2010-07-29 19:24:31 +0200},
  doi = {10.1016/j.csda.2007.07.015},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Dray-2008-Computational%20Statistics_On%20the%20number%20of%20pri.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p809},
  rating = {0}
}
@article{Lubke:2001p11600,
  author = {G H Lubke and CV Dolan and H Kelderman},
  journal = {Multivariate Behavioral Research},
  title = {Investigating Group Differences on Cognitive Tests Using Spearman's Hypothesis: An Evaluation of Jensen's Method},
  abstract = {Jensen has posited a research method to investigate group differences in cognitive tests. This method consists of first extracting a general intelligence factor by means of exploratory factor analysis. Secondly, similarity of factor loadings across groups is evaluated in an attempt to ensure that the same constructs are measured. Finally, the correlation is computed between the loadings of the tests on the general intelligence factor and the mean differences between groups on the tests. This part is referred to as a test of ``Spearman's Hypothesis'', which essentially states that differences in g account for the main part of differences in observed scores. Based on the correlation, inferences are made with respect to group differences in general intelligence.
The validity of these inferences is investigated and compared to the validity of inferences based on multi-group confirmatory factor analysis. For this comparison, population covariance matrices are constructed which incorporate violations of the central assumption underlying Jensen's method concerning the existence of g and/or violations of Spearman's Hypothesis. It is demonstrated that Jensen's method is quite insensitive to the violations. This lack of specificity is observed consistently for all types of violations introduced in the present study. Multi-group confirmatory factor analysis emerges as clearly superior to Jensen's method.},
  number = {3},
  pages = {299--324},
  volume = {36},
  year = {2001},
  date-added = {2010-05-09 21:28:43 +0200},
  date-modified = {2010-05-09 21:29:43 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Lubke-2001-Multivariate%20Behavioral%20Research_Investigating%20Group.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11600},
  rating = {0}
}
@article{Harvey:2004p2591,
  author = {R J Harvey and E Hollander},
  title = {Benchmarking rWG Interrater Agreement Indices: Let's Drop the .70 Rule-Of-Thumb},
  abstract = {Variance-based interrater agreement indices in the rWG family are often interpreted using rules-of- thumb derived for reliabilities (e.g., ≥ .70 = acceptable). Monte Carlo results suggest that far more stringent standards are needed, especially for maximum-variance rWG, as values > .70 can routinely be obtained from totally random ratings.},
  year = {2004},
  date-added = {2010-01-12 22:35:51 +0100},
  date-modified = {2010-01-12 22:36:36 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Harvey-2004-_Benchmarking%20rWG%20Int.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2591},
  rating = {0}
}
@article{Sprangers:2002p8512,
  author = {Mirjam A G Sprangers and Carol M Moinpour and Timothy J Moynihan and Donald L Patrick and Dennis A Revicki and Clinical Significance Consensus Meeting Group},
  journal = {Mayo Clin Proc},
  title = {Assessing meaningful change in quality of life over time: a users' guide for clinicians},
  abstract = {The objective of this article is to help clinicians interpret trial-based quality of life (QOL) changes over time. We address a series of questions and provide guidelines that are fundamental to assessing and interpreting change. The issues addressed are as follows: (1) What are the characteristics of the population for whom changes in QOL are reported? (2) Is the QOL questionnaire reliable, valid, and responsive to change? (3) Are the timing and frequency of assessments adequate? (4) Is the study adequately powered? (5) How are multiple QOL outcomes addressed in analyses? (6) How are multiple time points handled? (7) Can alternative explanations account for the observed change or lack of observed change (eg, handling of missing data, survival differences, and changes in patient's QOL perspective over time)? and (8) How is statistical significance translated into meaningful change? These guidelines will support clinicians in reviewing the clinical trial literature, which in turn can help them use the data in the treatment decision process.},
  affiliation = {Department of Medical Psychology, Academic Medical Center, University of Amsterdam, The Netherlands.},
  number = {6},
  pages = {561--71},
  volume = {77},
  year = {2002},
  month = {Jun},
  language = {eng},
  keywords = {Reproducibility of Results, Clinical Trials as Topic, Antineoplastic Agents: Hormonal, Physician's Practice Patterns, Female, Practice Guidelines as Topic, Flutamide, United States, Adenocarcinoma, Prostatic Neoplasms, Humans, Sickness Impact Profile, Outcome Assessment (Health Care), Clinical Competence, Questionnaires, Quality of Life, Male, Patient Satisfaction, Orchiectomy, Androgen Antagonists},
  date-added = {2010-03-21 20:37:36 +0100},
  date-modified = {2010-03-21 20:37:36 +0100},
  pmid = {12059127},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Sprangers-2002-Mayo%20Clin%20Proc_Assessing%20meaningful.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8512},
  rating = {0}
}
@article{Eldridge:2008p6416,
  author = {Sandra Eldridge and Deborah Ashby and Catherine Bennett and Melanie Wakelin and Gene Feder},
  journal = {BMJ},
  title = {Internal and external validity of cluster randomised trials: systematic review of recent trials},
  abstract = {OBJECTIVES: To assess aspects of the internal validity of recently published cluster randomised trials and explore the reporting of information useful in assessing the external validity of these trials. DESIGN: Review of 34 cluster randomised trials in primary care published in 2004 and 2005 in seven journals (British Medical Journal, British Journal of General Practice, Family Practice, Preventive Medicine, Annals of Internal Medicine, Journal of General Internal Medicine, Pediatrics). DATA SOURCES: National Library of Medicine (Medline) via PubMed. DATA EXTRACTION: To assess aspects of internal validity we extracted data on appropriateness of sample size calculations and analyses, methods of identifying and recruiting individual participants, and blinding. To explore reporting of information useful in assessing external validity we extracted data on cluster eligibility, cluster inclusion and retention, cluster generalisability, and the feasibility and acceptability of the intervention to health providers in clusters. RESULTS: 21 (62%) trials accounted for clustering in sample size calculations and 30 (88%) in the analysis; about a quarter were potentially biased because of procedures surrounding recruitment and identification of patients; individual participants were blind to allocation status in 19 (56%) and outcome assessors were blind in 15 (44%). In almost half the reports, information relating to generalisability of clusters was poorly reported, and in two fifths there was no information about the feasibility and acceptability of the intervention. CONCLUSIONS: Cluster randomised trials are essential for evaluating certain types of interventions. Issues affecting their internal validity, such as appropriate sample size calculations and analysis, have been widely disseminated and are now better addressed by researchers. Blinding of those identifying and recruiting patients to allocation status is recommended but is not always carried out. There may be fewer barriers to internal validity in trials in which individual participants are not recruited. External validity seems poorly addressed in many trials, yet is arguably as important as internal validity in judging quality as a basis for healthcare intervention.},
  affiliation = {Centre for Health Sciences, Barts and The London School of Medicine and Dentistry, London E1 2AT. s.eldridge@qmul.ac.uk},
  number = {7649},
  pages = {876--80},
  volume = {336},
  year = {2008},
  month = {Apr},
  language = {eng},
  keywords = {Cluster Analysis, Sample Size, Reproducibility of Results, Randomized Controlled Trials as Topic},
  date-added = {2010-02-23 08:26:42 +0100},
  date-modified = {2010-02-23 08:26:43 +0100},
  doi = {10.1136/bmj.39517.495764.25},
  pii = {bmj.39517.495764.25},
  pmid = {18364360},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6416},
  rating = {0}
}
@article{Zihl:2010p4022,
  author = {Josef Zihl and Simone Reppermund and Sonja Thum and Kathrin Unger},
  journal = {J Psychiatr Res},
  title = {Neuropsychological profiles in MCI and in depression: Differential cognitive dysfunction patterns or similar final common pathway disorder?},
  abstract = {The concept of "mild cognitive impairment" (MCI) refers to alterations in cognition in the transition between normal aging and dementia. However, from a neuropsychological point of view the conventional diagnostic criteria appear not sufficiently valid. In particular, it is still difficult to differentiate between subjects with MCI and subjects with depression plus cognitive deficits on the basis of their neuropsychological profiles. The aim of this study is to compare cognitive deficit patterns of subjects with MCI and with depression. 24 subjects with MCI, 50 subjects with depression (DEP) and 20 healthy control subjects were included (age: 55-74years). The neuropsychological assessment consisted of standardized tests to assess attention, memory, and executive functions. Compared to healthy controls both subject groups showed significantly lower performance in all cognitive domains. However, we did not find significant differences in cognitive performance between MCI and DEP subjects, neither at baseline nor at follow-up. In addition, preliminary results of follow-up assessments after 2 (DEP) and 6months (MCI), respectively, revealed no significant changes in cognition in subjects with depression, regardless of whether depressive symptoms had improved. Subjects with MCI also showed no changes in cognition at follow-up. The comparable neuropsychological patterns identified in the two subject groups may be understood as a consequence of similar alterations in cognitive systems, supporting the idea of a final common pathway disorder. Thus, the cognitive deficits present in a subgroup of subjects with depression may possibly better be understood in the context of MCI.},
  affiliation = {Max Planck Institute of Psychiatry, Munich, Germany; University of Munich, Department Psychology, Neuropsychology, Munich, Germany.},
  pages = {},
  year = {2010},
  month = {Jan},
  language = {ENG},
  date-added = {2010-01-19 08:21:55 +0100},
  date-modified = {2010-01-19 08:21:55 +0100},
  doi = {10.1016/j.jpsychires.2009.12.002},
  pii = {S0022-3956(09)00274-X},
  pmid = {20060127},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Zihl-2010-J%20Psychiatr%20Res_Neuropsychological%20p.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4022},
  rating = {0}
}
@article{Gelernter:2005p3533,
  author = {Joel Gelernter and Carolien Panhuysen and Roger Weiss and Kathleen Brady and Victor Hesselbrock and Bruce Rounsaville and James Poling and Marsha Wilcox and Lindsay Farrer and Henry R Kranzler},
  journal = {Am J Med Genet B Neuropsychiatr Genet},
  title = {Genomewide linkage scan for cocaine dependence and related traits: significant linkages for a cocaine-related trait and cocaine-induced paranoia},
  abstract = {Risk for cocaine dependence (CD) is genetically influenced. We recruited a sample of small nuclear families (528 full and 155 half sibpairs) with at least one subject affected with CD. The sample was classified via Bayesian clustering as 45.5% European American (EA) and 54.5% African American (AA). Assessment, via the Semi-Structured Assessment for Drug Dependence and Alcoholism, allowed for detailed evaluation of substance dependence-related traits. To define subgroups with increased genetic homogeneity, consistent with our a priori analytic plan, we used cluster analytic methods to identify six cocaine-related symptom clusters; membership was shown to be significantly heritable. We then completed a genomewide linkage scan (409 markers) for the CD diagnosis, cocaine-induced paranoia (CIP; an outcome that occurs in some cocaine users) and the clusters (three of which contained >80% of the CD subjects). We observed a "suggestive" linkage signal on chromosome 10 for the trait of CD in the full sample; and two "suggestive" linkage signals at different locations on chromosome 3, in the EA part of the sample. We observed a genomewide-significant lod score of 3.65 for the trait of CIP on chromosome 9, in the AA part of the sample only. Our strongest results were observed for the cluster membership traits, including a lod score of 4.66 for membership in the "Heavy Use, Cocaine Predominant" cluster on chromosome 12 (in EAs only) and a lod score of 3.35 for membership in the "Moderate Cocaine and Opioid Abuse" cluster on chromosome 18. These results provide a basis for the identification of specific genes contributing to risk for these traits.},
  affiliation = {Yale University School of Medicine, Department of Psychiatry, Division of Human Genetics; and VA CT Healthcare Center, West Haven, CT 06516, USA. joel.gelernter@yale.edu},
  number = {1},
  pages = {45--52},
  volume = {136B},
  year = {2005},
  month = {Jul},
  language = {eng},
  keywords = {Paranoid Disorders, Gene Frequency, Alcoholism, Linkage (Genetics), Phenotype, Adult, Bayes Theorem, Male, Cocaine-Related Disorders, Female, Models: Genetic, Microsatellite Repeats, Family Health, Genotype, Genome: Human, Humans},
  date-added = {2010-01-15 20:50:31 +0100},
  date-modified = {2010-01-15 20:50:31 +0100},
  doi = {10.1002/ajmg.b.30189},
  pmid = {15909294},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3533},
  rating = {0}
}
@article{deLeeuw:1986p11676,
  author = {Jan de Leeuw},
  journal = {NATO Advanced Research Workshop on Numerical Ecology},
  title = {Nonlinear multivariate analysis with optimal scaling},
  year = {1986},
  date-added = {2010-05-14 21:16:11 +0200},
  date-modified = {2010-07-29 20:45:39 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/de%20Leeuw-1986-NATO%20Advanced%20Research%20Workshop%20on%20Numerical%20Ecology_Nonlinear%20multivaria.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11676},
  rating = {0}
}
@article{Kates:2009p8907,
  author = {Wendy R Kates and Ichiro Ikuta and Courtney P Burnette},
  journal = {Autism Res},
  title = {Gyrification patterns in monozygotic twin pairs varying in discordance for autism},
  abstract = {In order to disentangle genetic and environmental contributions to cortical anomalies in children with autism, we investigated cortical folding patterns in a cohort of 14 monozygotic (MZ) twin pairs who displayed a range of phenotypic discordance for autism, and 14 typically developing community controls. Cortical folding was assessed with the gyrification index, which was calculated on high resolution anatomic MR images. We found that the cortical folding patterns across most lobar regions of the cerebral cortex was highly discordant within MZ twin pairs. In addition, children with autism and their co-twins exhibited increased cortical folding in the right parietal lobe, relative to age- and gender-matched typical developing children. Increased folding in the right parietal lobe was associated with more symptoms of autism for co-twins. Finally, the robust association between cortical folding and IQ observed in typical children was not observed in either children with autism or their co-twins. These findings, which contribute to our understanding of the limits of genetic liability in autism, suggest that anomalies in the structural integrity of the cortex in this PDD may disrupt the association between cortical folding and intelligence that has been reported in typical individuals, and may account, in part, for the deficits in visual spatial attention and in social cognition that have been reported in children with autism.},
  affiliation = {Department of Psychiatry and Behavioral Sciences, State University of New York at Upstate Medical University, Syracuse, New York 13210, USA. katesw@upstate.edu},
  number = {5},
  pages = {267--78},
  volume = {2},
  year = {2009},
  month = {Oct},
  language = {eng},
  keywords = {Twins: Monozygotic, Intelligence, Image Processing: Computer-Assisted, Male, Adolescent, Magnetic Resonance Imaging, Cerebral Cortex, Autistic Disorder, Cohort Studies, Child, Child: Preschool, Brain Mapping, Imaging: Three-Dimensional, Female, Humans},
  date-added = {2010-03-22 12:56:24 +0100},
  date-modified = {2010-03-22 12:56:24 +0100},
  doi = {10.1002/aur.98},
  pmid = {19890876},
  url = {http://www3.interscience.wiley.com/journal/122672650/abstract},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Kates-2009-Autism%20Res_Gyrification%20pattern.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8907},
  rating = {0}
}
@article{Grimison:2009p11768,
  author = {Peter S Grimison and R John Simes and H Malcolm Hudson and Martin R Stockler},
  journal = {Value Health},
  title = {Preliminary validation of an optimally weighted patient-based utility index by application to randomized trials in breast cancer},
  abstract = {OBJECTIVES: To optimize, apply, and validate a scoring algorithm that provides a utility index from a cancer-specific quality of life questionnaire called the Utility-Based Questionnaire-Cancer (UBQ-C) using data sets from randomized trials in breast cancer. The index is designed to reflect the perspective of cancer patients in a specific clinical context so as to best inform clinical decisions. METHODS: We applied the UBQ-C scoring algorithm to trials of chemotherapy for advanced (n = 325) and early (n = 126) breast cancer. The algorithm converts UBQ-C subscales into a subset index, and combines it with a global health status item into an overall HRQL index, which is then converted to a utility index using a power transformation. The optimal subscale weights were determined by their correlations with the global scale in the relevant data set. The validity of the utility index was tested against other patient characteristics. RESULTS: Optimal weights (range 0-1) for the subset index in advanced (early) breast cancer were: physical function 0.20 (0.09); social/usual activities 0.23 (0.25); self-care 0.04 (0.01); and distresses 0.53 (0.64). Weights for the overall HRQL index were health status 0.66 (0.63) and subset index 0.34 (0.37). The utility index discriminated between breast cancer that was advanced rather than early (means 0.88 vs. 0.94, P < 0.0001) and was responsive to the toxic effects of chemotherapy in early breast cancer (mean change 0.07, P < 0.0001). CONCLUSIONS: The scoring algorithm for the UBQ-C utility index can be optimized in different clinical contexts to reflect the relative importance of different aspects of quality of life to the patients in a trial. It can be used to generate sensitive and responsive utility scores, and quality-adjusted life-years that can be used within a trial to compare the net benefit of treatments and inform clinical decision-making.},
  affiliation = {NHMRC Clinical Trials Centre, University of Sydney, Sydney, Australia. Peter.Grimison@ctc.usyd.edu.au},
  number = {6},
  pages = {967--76},
  volume = {12},
  year = {2009},
  month = {Sep},
  language = {eng},
  keywords = {Algorithms, Australia, Quality-Adjusted Life Years, Health Status, Humans, Randomized Controlled Trials as Topic, Questionnaires, Adult, Quality of Life, Fluorouracil, Multicenter Studies as Topic, Sickness Impact Profile, Breast Neoplasms, Aged, New Zealand, Female, Antimetabolites: Antineoplastic, Young Adult, Outcome Assessment (Health Care), Survival Analysis, Deoxycytidine, Adolescent, Middle Aged},
  date-added = {2010-05-23 10:38:44 +0200},
  date-modified = {2010-05-23 10:38:44 +0200},
  doi = {10.1111/j.1524-4733.2009.00536.x},
  pii = {VHE536},
  pmid = {19490566},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Grimison-2009-Value%20Health_Preliminary%20validati.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11768},
  rating = {0}
}
@article{Ali:2009p13760,
  author = {Niloufer S Ali and Badar S Ali and Iqbal S Azam},
  journal = {BMC Public Health},
  title = {Post partum anxiety and depression in peri-urban communities of Karachi, Pakistan: a quasi-experimental study},
  abstract = {BACKGROUND: Postpartum anxiety and depression is a major public health concern because of its adverse effects on the cognitive and social development of the infant. Globally postpartum depression has been widely investigated but as anxiety is a more prominent feature of postpartum depression we assessed the prevalence of anxiety and depression and their associated factors in post partum women. METHODS: A quasi-experimental study investigating the impact of postpartum anxiety and depression on child growth and development was conducted in two peri-urban, multiethnic, communities of Karachi, a mega city of Pakistan. A house to house questionnaire based survey was done by trained field workers; 420 consenting pregnant women were identified and data for socio-demographic, home environment and family relationship variables was collected between 36 weeks of pregnancy and within 10 days of childbirth. Mother's levels of anxiety and depression were assessed after one month, two months, six months and twelve months of childbirth; this was two step process: initially an indigenous, validated screening instrument Aga Khan University Anxiety and Depression Scale was used and diagnostic confirmation was done through a psychologist's interview based on DSM IV criteria. Women found to be anxious and depressed at least once out of four assessments were considered for the computation of overall prevalence of postpartum anxiety and depression as well as its risk factors. However, point prevalence's of postpartum anxiety and depression were also reported at each assessment time. Two sixty seven women could be followed for one year. Data was analyzed using SPSS. Chi-square test, simple and multiple logistic regression were used to see the association of different factors. RESULTS: The overall prevalence of postpartum anxiety and depression was found to be 28.8 percent. Domestic violence, difficulty in breast feeding at birth and unplanned current pregnancy were found to be significantly associated with postpartum anxiety and depression. CONCLUSION: Domestic violence and not having the right to plan pregnancy are related to the patriarchal culture and lack of empowerment of women. The association with difficulties in breast feeding needs to be further explored in future studies.},
  affiliation = {Department of Community Health Sciences, Aga Khan University, Karachi, Pakistan, Stadium Road, PO Box 3500, Karachi 74800, Pakistan. niloufer.ali@aku.edu},
  pages = {384},
  volume = {9},
  year = {2009},
  month = {Jan},
  language = {eng},
  date-added = {2010-07-28 23:02:53 +0200},
  date-modified = {2010-07-28 23:02:53 +0200},
  doi = {10.1186/1471-2458-9-384},
  pii = {1471-2458-9-384},
  pmid = {19821971},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Ali-2009-BMC%20Public%20Health_Post%20partum%20anxiety.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13760},
  rating = {0}
}
@misc{Fox:2007a,
  author = {J-P Fox},
  journal = {Miscellaneous},
  title = {Multilevel IRT Model Assessment},
  year = {2007},
  date-added = {2010-01-10 11:33:18 +0100},
  date-modified = {2010-01-10 11:33:25 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Fox-2007-Miscellaneous_Multilevel%20IRT%20Model.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2054},
  read = {Yes},
  rating = {0}
}
@phdthesis{Fox:2001a,
  author = {Jean-Paul Fox},
  journal = {PhD Thesis},
  title = {Multilevel IRT: A bayesian perspective on estimating parameters and testing statistical hypotheses},
  affiliation = {Twente University},
  year = {2001},
  date-added = {2010-01-10 11:33:22 +0100},
  date-modified = {2010-01-10 11:33:25 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Fox-2001-PhD%20Thesis_Multilevel%20IRT%20A%20ba.PDF},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2150},
  rating = {0}
}
@article{Arking:2008p6061,
  author = {Dan E Arking and David J Cutler and Camille W Brune and Tanya M Teslovich and Kristen West and Morna Ikeda and Alexis Rea and Moltu Guy and Shin Lin and Edwin H Cook and Aravinda Chakravarti},
  journal = {Am J Hum Genet},
  title = {A common genetic variant in the neurexin superfamily member CNTNAP2 increases familial risk of autism},
  abstract = {Autism is a childhood neuropsychiatric disorder that, despite exhibiting high heritability, has largely eluded efforts to identify specific genetic variants underlying its etiology. We performed a two-stage genetic study in which genome-wide linkage and family-based association mapping was followed up by association and replication studies in an independent sample. We identified a common polymorphism in contactin-associated protein-like 2 (CNTNAP2), a member of the neurexin superfamily, that is significantly associated with autism susceptibility. Importantly, the genetic variant displays a parent-of-origin and gender effect recapitulating the inheritance of autism.},
  affiliation = {McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.},
  number = {1},
  pages = {160--4},
  volume = {82},
  year = {2008},
  month = {Jan},
  language = {eng},
  keywords = {Male, Female, Genome: Human, Autistic Disorder, Oligonucleotide Array Sequence Analysis, Membrane Proteins, Nerve Tissue Proteins, Child, Genetic Predisposition to Disease, Humans},
  date-added = {2010-02-19 17:02:19 +0100},
  date-modified = {2010-02-19 17:02:19 +0100},
  doi = {10.1016/j.ajhg.2007.09.015},
  pii = {S0002-9297(07)00021-3},
  pmid = {18179894},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6061},
  rating = {0}
}
@article{Agid:2000p10247,
  author = {O Agid and Y Kohn and B Lerer},
  journal = {Biomed Pharmacother},
  title = {Environmental stress and psychiatric illness},
  abstract = {It has long been recognized that environmental stress plays a pivotal role in the pathogenesis of psychiatric disorders. The relationship is complex and the neurobiological mechanisms that mediate the contribution of stressful experiences to the manifestation of illness are not well understood. In considering this relationship, it is important to differentiate between the role of environmental stressors as vulnerability factors that predispose the individual to psychiatric illness and may be temporally distant from its clinical onset, and their role as direct precipitants of the illness. Furthermore, environmental stressors must be considered in the context of constitutional vulnerability factors, such as genetic predisposition, with which such stressors may interact. Genetic predisposition may influence not only vulnerability to illness but also the nature of the individual's response to stress and the likelihood of exposure to stressful events. In this paper, we focus on two areas that illustrate the complexity of the field and the important findings that have emerged--the role of early parental loss (EPL) in adult psychopathology, particularly major depression, and the relationship between recent significant life events and depressive episodes. We conclude with a preliminary conceptual framework for considering the relationship between genetic susceptibility and environmental stress in the pathogenesis of psychiatric illness.},
  affiliation = {Department of Psychiatry, Hadassah-Hebrew University Medical Center, Jerusalem, Israel.},
  number = {3},
  pages = {135--41},
  volume = {54},
  year = {2000},
  month = {Apr},
  language = {eng},
  keywords = {Depressive Disorder, Mental Disorders, Humans, Environment, Animals, Stress: Psychological},
  date-added = {2010-04-02 10:50:49 +0200},
  date-modified = {2010-07-29 19:19:27 +0200},
  doi = {10.1016/S0753-3322(00)89046-0},
  pii = {S0753-3322(00)89046-0},
  pmid = {10840590},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Agid-2000-Biomed%20Pharmacother_Environmental%20stress.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p10247},
  rating = {0}
}
@article{Reich:2001p3546,
  author = {D E Reich and D B Goldstein},
  journal = {Genet Epidemiol},
  title = {Detecting association in a case-control study while correcting for population stratification},
  abstract = {Case-control studies are subject to the problem of population stratification, which can occur in ethnically mixed populations and can lead to significant associations being detected at loci that have nothing to do with disease. Here, we describe a way to measure and correct for stratification by genotyping a moderate number of unlinked genetic markers in the same set of cases and controls in which a candidate association was found. The average of association statistics across the markers directly measures stratification. By dividing the candidate association statistic by this average, a P-value can be obtained that corrects for stratification.},
  affiliation = {Whitehead Institute/MIT Center for Genome Research, Cambridge, Massachusetts 02142, USA. reich@genome.wi.mit.edu},
  number = {1},
  pages = {4--16},
  volume = {20},
  year = {2001},
  month = {Jan},
  language = {eng},
  keywords = {Ethnic Groups, Selection Bias, Polymorphism: Single Nucleotide, Models: Genetic, Case-Control Studies, Chromosome Mapping, Gene Frequency, Humans, Linkage Disequilibrium},
  date-added = {2010-01-15 20:59:34 +0100},
  date-modified = {2010-01-15 20:59:34 +0100},
  doi = {10.1002/1098-2272(200101)20:1<4::AID-GEPI2>3.0.CO;2-T},
  pii = {10.1002/1098-2272(200101)20:1<4::AID-GEPI2>3.0.CO;2-T},
  pmid = {11119293},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Reich-2001-Genet%20Epidemiol_Detecting%20associatio.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3546},
  rating = {0}
}
@article{Aleman:2008p8883,
  author = {Andr{\'e} Aleman and Marte Swart and Sophie van Rijn},
  journal = {Biol Psychol},
  title = {Brain imaging, genetics and emotion},
  abstract = {This paper reviews the published evidence on genetically driven variation in neurotransmitter function and brain circuits involved in emotion. Several studies point to a role of the serotonin transporter promoter polymorphism in amygdala activation during emotion perception. We also discuss other polymorphisms (e.g. the COMT val158met polymorphism, tryptophan hydroxylase-2 -703 G/T) and putative effects on affective processing in cortical and limbic regions. A different line of research concerns studies with genetic disorders. Although at a less fine-grained level, studies with individuals with aneuploidies of the X chromosome (Turner syndrome and Klinefelter syndrome), who display impairments in emotion processing, have resulted in new insights and hypotheses with regard to X chromosomal influences on brain systems supporting cognition and emotion. These have also implicated a key role for the amygdala. Integration of the emerging evidence, suggests that the study of polymorphisms using brain imaging can potentially elucidate biological pathways and mechanisms contributing to individual differences in brain circuits that may bias behavior and affect risk for psychiatric illness.},
  affiliation = {BCN Neuroimaging Center, University Medical Center Groningen, University of Groningen, The Netherlands. a.aleman@med.umcg.nl},
  number = {1},
  pages = {58--69},
  volume = {79},
  year = {2008},
  month = {Sep},
  language = {eng},
  keywords = {Emotions, Brain, Molecular Biology, Genetic Variation, Brain Chemistry, Animals, Neurotransmitter Agents, Humans, Polymorphism: Genetic},
  date-added = {2010-03-22 12:49:50 +0100},
  date-modified = {2010-03-22 12:49:50 +0100},
  doi = {10.1016/j.biopsycho.2008.01.009},
  pii = {S0301-0511(08)00028-8},
  pmid = {18329779},
  url = {http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6T4T-4RRFNGC-4&_user=2432700&_coverDate=09%252F30%252F2008&_rdoc=1&_fmt=high&_orig=search&_sort=d&_docanchor=&view=c&_acct=C000057263&_version=1&_urlVersion=0&_userid=2432700&md5=5342bce22b63df34a2ae66c8e4595667},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Aleman-2008-Biol%20Psychol_Brain%20imaging%20genet.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8883},
  rating = {0}
}
@article{Basker:2007p14003,
  author = {Mona Basker and Prabhakar D Moses and Sushila Russell and Paul Swamidhas Sudhakar Russell},
  journal = {Child Adolesc Psychiatry Ment Health},
  title = {The psychometric properties of Beck Depression Inventory for adolescent depression in a primary-care paediatric setting in India},
  abstract = {BACKGROUND: There is increasing interest in identifying adolescents with depression in primary care settings by paediatricians in India. This article studied the diagnostic accuracy, reliability and validity of Beck Depression Inventory (BDI) while used by paediatricians in a primary care setting in India. METHODS: 181 adolescents attending 3 schools were administered a back translated Tamil version of BDI by a paediatrician to evaluate its psychometric properties along with Children's Depression Rating Scale (CDRS-R) for convergent validity. Clinical diagnosis of depressive disorders, for reference standard, was based on ICD-10 interview by an independent psychiatrist who also administered the Impact of Event Scale (IES) for divergent validity. Appropriate analyses for validity and diagnostic accuracy both at the item and scale levels were conducted. RESULTS: A cut-off score of >or= 5 (Sn = 90.9%, Sp = 17.6 %) for screening and cut-off score of >or= 22 (Sn = 27.3%, Sp = 90%) for diagnostic utility is suggested. The 4 week test - retest reliability was good (r = 0.82). In addition to the adequate face and content validity, BDI has very good internal consistency (alpha = 0.96), high convergent validity with CDRS-R (r = 0.72; P = 0.001), and high discriminant validity with IES (r = 0.26; P = 0.23). There was a moderate concordance rate with the reference standard (54.5%) in identifying depression among the adolescents. Factor analysis replicated the 2-factor structure explaining 30.5 % of variance. CONCLUSION: The BDI proved to be a psychometrically sound measure for use by paediatricians in a primary care setting in India. The possibility of screening for depressive disorders through the use of BDI may be helpful in identifying probable cases of the disorder among adolescents.},
  affiliation = {Department of Child Health, Christian Medical College, Vellore, India. mona_thilak@cmcvellore.ac.in},
  number = {1},
  pages = {8},
  volume = {1},
  year = {2007},
  month = {Jan},
  language = {eng},
  date-added = {2010-08-04 09:28:21 +0200},
  date-modified = {2010-08-04 09:28:21 +0200},
  doi = {10.1186/1753-2000-1-8},
  pii = {1753-2000-1-8},
  pmid = {17688697},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Basker-2007-Child%20Adolesc%20Psychiatry%20Ment%20Health_The%20psychometric%20pro.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p14003},
  rating = {0}
}
@article{Stevanovic:2009p7980,
  author = {Dejan Stevanovic},
  journal = {Health Qual Life Outcomes},
  title = {Serbian KINDL questionnaire for quality of life assessments in healthy children and adolescents: reproducibility and construct validity},
  abstract = {BACKGROUND: The KINDL questionnaire is frequently used to evaluate quality of life (QOL) and the impacts of health conditions on children's everyday living. The objectives of this study were to assess the reproducibility and construct validity of the Serbian KINDL for QOL assessments in healthy children and adolescents. METHODS: Five hundred and sixty-four healthy children and adolescents completed the KINDL. Reproducibility was analyzed using the intraclass correlation coefficient (ICC). Confirmatory factor analysis (CFA) was performed to assess the structure of the KINDL construct validity. RESULTS: The intraclass correlation coefficients ranged from 0.03 to 0.84 for the subscales and total score. A second order CFA model as originally hypothesized was tested: items (24), primary factors (six subscales), and one secondary factor (QOL). The fit indexes derived from a CFA failed to yield appropriate fit between the data and the hypothesized model. CONCLUSION: Majority of the subscales and total KINDL possess appropriate reproducibility for group comparisons. However, a CFA failed to confirm the structure of the original measurement model, indicating that the Serbian version should be revised before wider use for QOL assessments in healthy children and adolescent.},
  affiliation = {Department of Psychiatry, General Hospital Sombor, Sombor, Serbia. dejanstevanovic@eunet.rs},
  pages = {79},
  volume = {7},
  year = {2009},
  month = {Jan},
  language = {eng},
  keywords = {Male, Quality of Life, Female, Humans, Child, Adolescent, Factor Analysis: Statistical, Questionnaires, Serbia},
  date-added = {2010-03-20 19:33:08 +0100},
  date-modified = {2010-03-20 19:33:09 +0100},
  doi = {10.1186/1477-7525-7-79},
  pii = {1477-7525-7-79},
  pmid = {19715576},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Stevanovic-2009-Health%20and%20Quality%20of%20Life%20Outcomes_Serbian%20KINDL%20questi.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7980},
  rating = {0}
}
@article{Petrov:2005p14179,
  author = {Alexander A Petrov and John R Anderson},
  journal = {Psychological Review},
  title = {The dynamics of scaling: a memory-based anchor model of category rating and absolute identification},
  abstract = {A memory-based scaling model--ANCHOR--is proposed and tested. The perceived magnitude of the target stimulus is compared with a set of anchors in memory. Anchor selection is probabilistic and sensitive to similarity, base-level strength, and recency. The winning anchor provides a reference point near the target and thereby converts the global scaling problem into a local comparison. An explicit correction strategy determines the final response. Two incremental learning mechanisms update the locations and base-level activations of the anchors. This gives rise to sequential, context, transfer, practice, and other dynamic effects. The scale unfolds as an adaptive map. A hierarchy of models is tested on a battery of quantitative measures from 2 experiments in absolute identification and category rating.},
  affiliation = {Department of Cognitive Sciences, University of California, Irvine, Irvine, CA 92697, USA. apetrov@uci.edu},
  number = {2},
  pages = {383--416},
  volume = {112},
  year = {2005},
  month = {Apr},
  language = {eng},
  keywords = {Retrospective Studies, Psychological Tests, Humans, Models: Psychological, Psychological Theory, Memory},
  date-added = {2010-08-22 20:16:03 +0200},
  date-modified = {2010-08-22 20:16:03 +0200},
  doi = {10.1037/0033-295X.112.2.383},
  pii = {2005-02750-004},
  pmid = {15783291},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p14179},
  rating = {0}
}
@article{Beretvas:2002,
  author = {S N Beretvas and D A Pastor},
  journal = {Educational and Psychological Measurement},
  title = {Using mixed-effects models in Reliability Generalization studies},
  volume = {62},
  year = {2002},
  date-added = {2010-01-10 11:33:21 +0100},
  date-modified = {2010-01-10 11:33:25 +0100},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2008},
  rating = {0}
}
@article{Steyerberg:2000p4065,
  author = {E W Steyerberg and M J Eijkemans and F E Harrell and J D Habbema},
  journal = {Stat Med},
  title = {Prognostic modelling with logistic regression analysis: a comparison of selection and estimation methods in small data sets},
  abstract = {Logistic regression analysis may well be used to develop a prognostic model for a dichotomous outcome. Especially when limited data are available, it is difficult to determine an appropriate selection of covariables for inclusion in such models. Also, predictions may be improved by applying some sort of shrinkage in the estimation of regression coefficients. In this study we compare the performance of several selection and shrinkage methods in small data sets of patients with acute myocardial infarction, where we aim to predict 30-day mortality. Selection methods included backward stepwise selection with significance levels alpha of 0.01, 0.05, 0. 157 (the AIC criterion) or 0.50, and the use of qualitative external information on the sign of regression coefficients in the model. Estimation methods included standard maximum likelihood, the use of a linear shrinkage factor, penalized maximum likelihood, the Lasso, or quantitative external information on univariable regression coefficients. We found that stepwise selection with a low alpha (for example, 0.05) led to a relatively poor model performance, when evaluated on independent data. Substantially better performance was obtained with full models with a limited number of important predictors, where regression coefficients were reduced with any of the shrinkage methods. Incorporation of external information for selection and estimation improved the stability and quality of the prognostic models. We therefore recommend shrinkage methods in full models including prespecified predictors and incorporation of external information, when prognostic models are constructed in small data sets.},
  affiliation = {Center for Clinical Decision Sciences, Department of Public Health, Erasmus University, Rotterdam, The Netherlands. steyerberg@mgz.fgg.eur.nl},
  number = {8},
  pages = {1059--79},
  volume = {19},
  year = {2000},
  month = {Apr},
  language = {eng},
  keywords = {Sample Size, Models: Statistical, Forecasting, Female, Myocardial Infarction, Regression Analysis, Age Factors, Prognosis, Aged, Risk Factors, Humans, Male, Sex Factors, Logistic Models},
  date-added = {2010-01-19 15:48:37 +0100},
  date-modified = {2010-01-19 15:48:37 +0100},
  pii = {10.1002/(SICI)1097-0258(20000430)19:8<1059::AID-SIM412>3.0.CO;2-0},
  pmid = {10790680},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Steyerberg-2000-Stat%20Med_Prognostic%20modelling.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4065},
  rating = {0}
}
@article{Geisser:1982p6281,
  author = {S Geisser},
  journal = {Biometrics},
  title = {Aspects of the Predictive and Estimative Approaches in the Determination of Probabilities},
  pages = {75--85},
  volume = {38},
  year = {1982},
  date-added = {2010-02-20 18:05:13 +0100},
  date-modified = {2010-02-20 18:05:58 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Geisser-1982-Biometrics_Aspects%20of%20the%20Predi.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6281},
  rating = {0}
}
@article{Pocock:1992,
  author = {SJ Pocock},
  journal = {British Medical Journal},
  title = {When to stop a clinical trial},
  abstract = {Most randomised clinical trials require periodic monitoring of the accumulating data. While the efficiency of trial management is enhanced by data monitoring, ethical reasons should primarily dictate the need to terminate or change a trial in response to interim findings. This article focuses on the ethical dilemma of when to stop a clinical trial and places statistical stopping rules in the context of such ethical decision making. Other issues include the organisation of data monitoring committees and the problems of premature publication and exaggerated estimation in trials that stop early. Several topical examples are used to convey the relevance of these issues to current practice.},
  pages = {235--240},
  volume = {305},
  year = {1992},
  date-added = {2010-01-03 19:36:10 +0100},
  date-modified = {2010-01-03 19:36:10 +0100},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1047},
  rating = {0}
}
@article{Mols:2010p4759,
  author = {Floortje Mols and Johan Denollet},
  journal = {Health Qual Life Outcomes},
  title = {Type D personality in the general population: a systematic review of health status, mechanisms of disease, and work-related problems},
  abstract = {ABSTRACT: BACKGROUND: The objective was to review all available literature concerning Type D (distressed) personality among the general population and to discuss its implications for research on health status, disease-promoting mechanisms and work-related problems in non-clinical populations. METHODS: A computerized search of the literature was performed independently and in duplicate by both investigators on December 21st, 2009. Published research reports were included if they studied Type D personality among the general population. Nineteen articles were selected and they were subjected to an 11-item standardised quality checklist by both investigators. RESULTS: The methodological quality of the selected studies was adequate to high. The studies included in this review showed that the presence of Type D characteristics had a negative impact on mental health status (more symptoms of depression, anxiety, post-traumatic stress disorder, mental distress, passive coping, and less social support) and physical health status (more somatic complaints, lower health status, more influenza-like illness reporting). Other studies reported on behavioral and biological mechanisms of disease in apparently healthy individuals with a Type D personality. Finally, some studies also showed a negative effect of Type D personality on work-related problems (higher absence-leave, higher levels of vital exhaustion and burnout, and more work-related stress). CONCLUSIONS: Type D personality is a vulnerability factor for general psychological distress that affects mental and physical health status and is associated with disease-promoting mechanisms and work-related problems in apparently healthy individuals.},
  number = {1},
  pages = {9},
  volume = {8},
  year = {2010},
  month = {Jan},
  language = {ENG},
  date-added = {2010-02-01 12:42:36 +0100},
  date-modified = {2010-02-01 12:42:36 +0100},
  doi = {10.1186/1477-7525-8-9},
  pii = {1477-7525-8-9},
  pmid = {20096129},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Mols-2010-Health%20and%20Quality%20of%20Life%20Outcomes_Type%20D%20personality%20i-1.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4759},
  rating = {0}
}
@article{Browne:2010p8342,
  author = {Dillon T Browne and Adefowope Odueyungbo and Lehana Thabane and Carolyn Byrne and Lindsay A Smart},
  journal = {Child Adolesc Psychiatr Clin N Am},
  title = {Parenting-by-gender interactions in child psychopathology: attempting to address inconsistencies with a Canadian national database},
  abstract = {ABSTRACT: BACKGROUND: Research has shown strong links between parenting and child psychopathology. The moderating role of child gender is of particular interest, due to gender differences in socialization history and in the prevalence of psychiatric disorders. Currently there is little agreement on how gender moderates the relationship between parenting and child psychopathology. This study attempts to address this lack of consensus by drawing upon two theories (self-salience vs. gender stereotyped misbehaviour) to determine how child gender moderates the role of parenting, if at all. METHODS: Using generalized estimating equations (GEE) associations between three parenting dimensions (hostile-ineffective parenting, parental consistency, and positive interaction) were examined in relationship to child externalizing (physical aggression, indirect aggression, and hyperactivity-inattention) and internalizing (emotional disorder-anxiety) dimensions of psychopathology. A sample 4 and 5 year olds from the National Longitudinal Survey of Children and Youth (NLSCY) were selected for analysis and followed over 6 years (N = 1214). Two models with main effects (Model 1) and main effects plus interactions (Model 2) were tested. RESULTS: No child gender-by-parenting interactions were observed for child physical aggression and indirect aggression. The association between hostile-ineffective parenting and child hyperactivity was stronger for girls, though this effect did not reach conventional levels of statistical significance (p = .059). The associations between parenting and child emotional disorder did vary as a function of gender, where influences of parental consistency and positive interaction were stronger for boys. DISCUSSION: Despite the presence of a few significant interaction effects, hypotheses were not supported for either theory (i.e. self-salience or gender stereotyped misbehaviour). We believe that the inconsistencies in the literature regarding child gender-by-parenting interactions is due to the reliance on gender as an indicator of a different variable which is intended to explain the interactions. This may be problematic because there is likely within-gender and between-sample variability in such constructs. Future research should consider measuring and modelling variables that are assumed to explain such interactions when conducting gender-by-parenting research.},
  affiliation = {Department of Psychology, University of Guelph, Guelph, Canada. dbrowne@uoguelph.ca.},
  pages = {5},
  volume = {4},
  year = {2010},
  month = {Jan},
  language = {eng},
  date-added = {2010-03-21 12:43:23 +0100},
  date-modified = {2010-07-29 19:23:03 +0200},
  doi = {10.1186/1753-2000-4-5},
  pii = {1753-2000-4-5},
  pmid = {20181023},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Browne-2010-Child%20Adolesc%20Psychiatr%20Clin%20N%20Am_Parenting-by-gender.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8342},
  rating = {0}
}
@article{Wray:2005p6090,
  author = {John Wray and Natalie Silove and Helen Knott},
  journal = {Med J Aust},
  title = {7. Language disorders and autism},
  abstract = {Early diagnosis of language disorders and autism is important, and early intervention for autism and some language disorders makes a difference. Developmental surveillance of children to detect these disorders should be a routine part of medical practice. The persistence and pervasiveness of communication and socialising deficits differentiate children with autism from those with specific developmental language disorders. Hearing and vision assessment is essential in any communication disorder. Interventions, targeted to identified areas of need, should encompass communication enhancement, behavioural therapy, educational modification, parent education and family support. Pharmacological interventions have an important but discrete role in autism, but there are no magic bullets. It is important to remember that the normal childhood illnesses occur in children with developmental disorders. Parents should be directed to reliable websites on the Internet, and given information and books to read as well as phone numbers of relevant services (eg, autism associations). There is a need for increased government financial support for early intervention programs.},
  affiliation = {c/o State Child Development Centre, Women's and Children's Health Service, West Perth, WA, Australia. john.wray@health.wa.gov.au},
  number = {7},
  pages = {354--60},
  volume = {182},
  year = {2005},
  month = {Apr},
  language = {eng},
  keywords = {Family, Diagnosis: Differential, Autistic Disorder, Early Diagnosis, Child, Language Disorders, Humans, Social Support, Caregivers},
  date-added = {2010-02-19 17:05:18 +0100},
  date-modified = {2010-07-29 19:52:48 +0200},
  pii = {wra10330_fm},
  pmid = {15804229},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6090},
  rating = {0}
}
@inbook{Tourangeau:1992,
  author = {R Tourangeau},
  journal = {Book},
  title = {Context effects in social and psychological research},
  chapter = {Attitudes as memory structures: Belief sampling and context effects},
  pages = {35--47},
  year = {1992},
  date-added = {2010-01-03 19:34:17 +0100},
  date-modified = {2010-07-29 19:21:41 +0200},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p938},
  rating = {0}
}
@article{Cannon:1999,
  author = {M Cannon and P Jones and MO Huttunen and A Tanskanen and T Huttunen and S Rabe-Hesketh and RM Murray},
  journal = {Arch Gen Psychiatry},
  title = {School performance in Finnish children and later development of schizophrenia. A population-based longitudinal study},
  abstract = {BACKGROUND: We examined whether children who are diagnosed as having schizophrenia in adulthood could be distinguished from their peers on performance in elementary school. METHODS: We used a case-control study design nested within a population-based birth cohort of all individuals born in Helsinki, Finland, between January 1, 1951, and December 31, 1960. Case ascertainment was from 3 national health care registers. Elementary school records were obtained for 400 children who were diagnosed as having schizophrenia in adulthood and for 408 controls. Results were analyzed for the 4 years of schooling (ages 7-11 years) that were common to all pupils. School subjects were entered into a principal components analysis and produced 3 factors: academic, nonacademic, and behavioral. These factors were compared between cases and controls after adjusting for sex and social group. Eligibility for high school and progression to high school were investigated among cases and controls. RESULTS: Cases performed significantly worse than controls only on the nonacademic factor (which loaded sports and handicrafts). There were no differences between the groups on the academic or behavioral factors, and there were no significant clinical correlates of factor scores. Cases were significantly less likely than controls to progress to high school, despite similar eligibility. CONCLUSIONS: Poor performance in sports and handicrafts during elementary school, which may indicate a motor coordination deficit, appears to be a risk factor for later schizophrenia. Poor academic performance in elementary school was not a risk factor for schizophrenia in this study. Lack of expected progression to high school among cases, despite good academic grades, provides evidence for deteriorating premorbid functional adjustment in schizophrenia.},
  pages = {457--463},
  volume = {56},
  year = {1999},
  date-added = {2010-01-03 19:36:10 +0100},
  date-modified = {2010-01-03 19:36:10 +0100},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1059},
  rating = {0}
}
@article{Efron2004,
  author = {B Efron and T Hastie and I Johnstone and R Tibshirani},
  journal = {The Annals of Statistics},
  title = {Least angle regression},
  number = {2},
  pages = {407--499},
  volume = {32},
  year = {2004},
  date-added = {2010-01-12 14:26:48 +0100},
  date-modified = {2010-07-29 19:51:51 +0200},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2528},
  rating = {0}
}
@article{Burmeister:2008p2499,
  author = {Margit Burmeister and Melvin G McInnis and Sebastian Z{\"o}llner},
  journal = {Nat Rev Genet},
  title = {Psychiatric genetics: progress amid controversy},
  abstract = {Several psychiatric disorders--such as bipolar disorder, schizophrenia and autism--are highly heritable, yet identifying their genetic basis has been challenging, with most discoveries failing to be replicated. However, inroads have been made by the incorporation of intermediate traits (endophenotypes) and of environmental factors into genetic analyses, and through the identification of rare inherited variants and novel structural mutations. Current efforts aim to increase sample sizes by gathering larger samples for case-control studies or through meta-analyses of such studies. More attention on unique families, rare variants, and on incorporating environment and the emerging knowledge of biological function and pathways into genetic analysis is warranted.},
  affiliation = {Molecular and Behavioral Neuroscience Institute, University of Michigan, 5061 BSRB, 109 Zina Pitcher Place, Ann Arbor, Michigan 48109-2200, USA. margit@umich.edu},
  number = {7},
  pages = {527--40},
  volume = {9},
  year = {2008},
  month = {Jul},
  language = {eng},
  keywords = {Genetic Predisposition to Disease, Humans, Genetic Variation, Genome: Human, Mental Disorders, Animals, Risk Factors},
  date-added = {2010-01-12 13:35:21 +0100},
  date-modified = {2010-07-29 19:40:47 +0200},
  doi = {10.1038/nrg2381},
  pii = {nrg2381},
  pmid = {18560438},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Burmeister-2008-Nat%20Rev%20Genet_Psychiatric%20genetics.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2499},
  rating = {0}
}
@article{Sherry:2005p10351,
  author = {Alissa Sherry and Robin K Henson},
  journal = {J Pers Assess},
  title = {Conducting and interpreting canonical correlation analysis in personality research: a user-friendly primer},
  abstract = {The purpose of this article is to reduce potential statistical barriers and open doors to canonical correlation analysis (CCA) for applied behavioral scientists and personality researchers. CCA was selected for discussion, as it represents the highest level of the general linear model (GLM) and can be rather easily conceptualized as a method closely linked with the more widely understood Pearson r correlation coefficient. An understanding of CCA can lead to a more global appreciation of other univariate and multivariate methods in the GLM. We attempt to demonstrate CCA with basic language, using technical terminology only when necessary for understanding and use of the method. We present an entire example of a CCA analysis using SPSS (Version 11.0) with personality data.},
  affiliation = {Counseling Psychology Program, University of Texas at Austin, USA.},
  number = {1},
  pages = {37--48},
  volume = {84},
  year = {2005},
  month = {Feb},
  language = {eng},
  keywords = {Behavioral Research, Analysis of Variance, United States, Humans, Personality Assessment},
  date-added = {2010-04-02 18:21:02 +0200},
  date-modified = {2010-04-02 18:21:02 +0200},
  doi = {10.1207/s15327752jpa8401_09},
  pmid = {15639766},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Sherry-2005-Journal%20of%20Personality%20Assessment_Conducting%20and%20inter.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p10351},
  rating = {0}
}
@article{Eap:2008p13869,
  author = {Sopagna Eap and David S Degarmo and Ayaka Kawakami and Shelley N Hara and Gordon C N Hall and Andra L Teten},
  journal = {Journal of Cross-Cultural Psychology},
  title = {Culture and Personality Among European American and Asian American Men},
  abstract = {Personality differences between Asian American (N = 320) and European American men (N = 242) and also among Asian American ethnic groups (Korean, Chinese, Japanese, Filipino, and mixed Asian) are examined on the Big Five personality dimension. Personality structures for Asian Americans and European Americans closely replicate established norms. However, congruence is greater for European American and highly acculturated Asian American men than for low acculturated Asian American men. Similar patterns are found for the construct loss of face (LOF). Asian American men with a high concern for LOF are less similar in their personality structure to European American men than Asian American men with low LOF concern. Mean differences are also found among Asian American and European American men, who differ significantly on Extraversion, Conscientiousness, Openness, and Neuroticism. Results indicate that acculturation and LOF are significantly associated with these four personality dimensions for both Asian American and European American men.},
  affiliation = {University of Oregon.},
  number = {5},
  pages = {630--643},
  volume = {39},
  year = {2008},
  month = {Sep},
  language = {ENG},
  date-added = {2010-07-29 17:44:29 +0200},
  date-modified = {2010-07-29 17:44:29 +0200},
  doi = {10.1177/0022022108321310},
  pmid = {19169434},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13869},
  rating = {0}
}
@article{Sham:2000p11299,
  author = {P C Sham and J H Zhao and S S Cherny and J K Hewitt},
  journal = {Genet Epidemiol},
  title = {Variance-Components QTL linkage analysis of selected and non-normal samples: conditioning on trait values},
  abstract = {Standard variance-components quantitative trait loci (QTL) linkage analysis can produce an elevated rate of type 1 errors when applied to selected samples and non-normal data. Here we describe an adjustment of the log-likelihood function based on conditioning on trait values. This leads to a likelihood ratio test that is valid in selected samples and non-normal data, and equal in power to alternative methods for analyzing selected samples that require knowledge of the ascertainment procedure or the trait values of non-selected individuals.},
  affiliation = {Social, Genetic and Developmental Psychiatry Research Center and Department of Psychiatry, Institute of Psychiatry, Denmark Hill, London, United Kingdom. p.sham@iop.kcl.ac.uk},
  pages = {S22--8},
  volume = {19 Suppl 1},
  year = {2000},
  month = {Jan},
  language = {eng},
  keywords = {Quantitative Trait: Heritable, Linkage (Genetics), Computer Simulation, Analysis of Variance},
  date-added = {2010-04-26 22:34:09 +0200},
  date-modified = {2010-04-26 22:34:09 +0200},
  doi = {10.1002/1098-2272(2000)19:1+<::AID-GEPI4>3.0.CO;2-S},
  pmid = {11055366},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Sham-2000-Genet%20Epidemiol_Variance-Components.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11299},
  rating = {0}
}
@article{LasHayas:2010p8322,
  author = {Carlota Las Hayas and Jose M Quintana and Jesus A Padierna and Amaia Bilbao and Pedro Munoz},
  journal = {Health Qual Life Outcomes},
  title = {Use of rasch methodology to develop a short version of the Health Related Quality of life for Eating Disorders questionnaire: a prospective study},
  abstract = {ABSTRACT: BACKGROUND: To confirm the internal structure of the Health Related Quality of Life for Eating Disorders version 2 questionnaire (HeRQoLEDv2) and create and validate a shortened version (HeRQoLED-S). METHODS: 324 patients with eating disorders were assessed at baseline and one year later (75.6% of whom responded). We performed a confirmatory factor analysis of the HeRQoLEDv2 using baseline data, and then a Rasch analysis to shorten the questionnaire. Data obtained at year one was used to confirm the structure of the HeRQoLED short form and evaluate its validity and reliability. RESULTS: Two latent second-order factors -- social maladjustment and mental health and functionality -- fit the data for the HeRQoLEDv2. Rasch analysis was computed separately for the two latent second-order factors and shortened the HeRQoLEDv2 to 20 items. Infit and outfit indices were acceptable, with the confirmatory factor analysis of the HeRQoLED short form giving a root mean square error of approximation of 0.07, a non-normed fit index and a comparative fit index exceeding 0.90. The validity was also supported by the correlation with the convergent measures: the social maladjustment factor correlated 0.82 with the dieting concern factor of the Eating Attitudes Test-26 and the mental health and functionality factor correlated -0.69 with the mental summary component of the Short Form-12. Cronbach alphas exceeded 0.89. CONCLUSIONS: Two main factors, social maladjustment and mental health and functionality, explain the majority of HeRQoLEDv2 scores. The shortened version maintains good psychometric properties, though it must be validated in independent samples.},
  number = {1},
  pages = {29},
  volume = {8},
  year = {2010},
  month = {Mar},
  language = {ENG},
  date-added = {2010-03-21 09:28:01 +0100},
  date-modified = {2010-03-21 09:28:07 +0100},
  doi = {10.1186/1477-7525-8-29},
  pii = {1477-7525-8-29},
  pmid = {20298556},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Las%20Hayas-2010-Health%20and%20Quality%20of%20Life%20Outcomes_Use%20of%20rasch%20methodo-1.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8322},
  rating = {3}
}
@article{BarnettPage:2009p440,
  author = {Elaine Barnett-Page and James Thomas},
  journal = {BMC Med Res Methodol},
  title = {Methods for the synthesis of qualitative research: a critical review},
  abstract = {BACKGROUND: In recent years, a growing number of methods for synthesising qualitative research have emerged, particularly in relation to health-related research. There is a need for both researchers and commissioners to be able to distinguish between these methods and to select which method is the most appropriate to their situation. DISCUSSION: A number of methodological and conceptual links between these methods were identified and explored, while contrasting epistemological positions explained differences in approaches to issues such as quality assessment and extent of iteration. Methods broadly fall into 'realist' or 'idealist' epistemologies, which partly accounts for these differences. SUMMARY: Methods for qualitative synthesis vary across a range of dimensions. Commissioners of qualitative syntheses might wish to consider the kind of product they want and select their method - or type of method - accordingly.},
  affiliation = {Evidence for Policy and Practice Information and Co-ordinating Centre, Social Science Research Unit, 18 Woburn Square, London WC1H 0NS, UK. e.barnett-page@ioe.ac.uk},
  pages = {59},
  volume = {9},
  year = {2009},
  month = {Jan},
  language = {eng},
  date-added = {2010-01-03 12:26:51 +0100},
  date-modified = {2010-01-03 12:26:51 +0100},
  doi = {10.1186/1471-2288-9-59},
  pii = {1471-2288-9-59},
  pmid = {19671152},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Barnett-Page-2009-BMC%20Med%20Res%20Methodol_Methods%20for%20the%20synt.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p440},
  rating = {0}
}
@article{Fassino:2004p13046,
  author = {S Fassino and G Abbate Daga and N Delsedime and L Rogna and S Boggio},
  journal = {Drug Alcohol Depend},
  title = {Quality of life and personality disorders in heroin abusers},
  abstract = {OBJECTIVE: The aim of this study is to describe the personality disorders (PD) and personality profile of heroin-abusers and their quality of life (QoL), and to investigate the correlation between the two. METHOD: One hundred and eighty heroin-abusers during their residential treatment participated in the study. The Structured Clinical Interview-II (SCID-II) allowed the identification of two subgroups of heroin-abusers on the basis of presence/absence of a PD. All patients filled in the Temperament and Character Inventory (TCI), the McGill QoL Questionnaire (MQOL) and an anamnestic sheet. A control group of 63 non-clinical subjects was recruited. RESULTS: Abusers with a PD differ in their personality profile from abusers without PD and score lower on the total MQOL. As regards TCI scales, novelty seeking (NS), reward dependence (RD) and self-directedness (SD) predict the age of onset of the abuse, while cooperativeness (C) is a predictor of the number of community admissions. DISCUSSION: Low scores on self-directedness and cooperativeness in abusers support the hypothesis of an immature character and relational difficulties. Novelty seeking is the only dimension which is altered both in abusers with and without a PD and is not strictly dependent on Axis II comorbidity. QoL is lower in abusers than in controls, according to their physical, psychological and existential suffering. Last, an interesting link emerged between personality and perceived QoL.},
  affiliation = {Department of Neuroscience, Psychiatric Institute, University of Turin, Via Cherasco 11, 10126 Torino, Italy. secondo.fassino@unito.it},
  number = {1},
  pages = {73--80},
  volume = {76},
  year = {2004},
  month = {Oct},
  language = {eng},
  keywords = {Female, Quality of Life, Male, Personality Disorders, Humans, Analysis of Variance, Cross-Sectional Studies, Adult, Heroin Dependence},
  date-added = {2010-06-26 09:37:26 +0200},
  date-modified = {2010-06-26 09:37:26 +0200},
  doi = {10.1016/j.drugalcdep.2004.04.005},
  pii = {S0376871604001024},
  pmid = {15380291},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Fassino-2004-Drug%20Alcohol%20Depend_Quality%20of%20life%20and.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13046},
  rating = {0}
}
@article{Nakagami:2008p5489,
  author = {Eri Nakagami and Bin Xie and Maanse Hoe and John S Brekke},
  journal = {Schizophr Res},
  title = {Intrinsic motivation, neurocognition and psychosocial functioning in schizophrenia: testing mediator and moderator effects},
  abstract = {BACKGROUND: This study examined the nature of the relationships among neurocognition, intrinsic motivation, and psychosocial functioning for persons with schizophrenia. Hypotheses concerning both mediator and moderator mechanisms were tested. METHOD: 120 individuals diagnosed with schizophrenia were recruited as they entered outpatient psychosocial rehabilitation programs. Measures of psychosocial functioning and intrinsic motivation were administered at baseline. Measures of neurocognition were administered at baseline by testers blind to scores on other study variables. Data were analyzed using latent construct modeling to test for mediator and moderator effects. RESULTS: There were strong bivariate relationships between neurocognition, intrinsic motivation, and psychosocial functioning. The results demonstrated that intrinsic motivation strongly mediated the relationship between neurocognition and psychosocial functioning. This mediation was evidenced by: (i) the direct path from neurocognition to functional outcome no longer being statistically significant after the introduction of motivation into the model, (ii) the statistical significance of the indirect path from neurocognition through motivation to functional outcome. There was no support for the two moderation hypotheses: the level of neurocognition did not influence the relationship between intrinsic motivation and psychosocial functioning, nor did the level of intrinsic motivation influence the relationship between neurocognition and psychosocial functioning. CONCLUSIONS: Neurocognition influences psychosocial functioning through its relationship with intrinsic motivation. Intrinsic motivation is a critical mechanism for explaining the relationship between neurocognition and psychosocial functioning. Implications for the theoretical understanding and psychosocial treatment of intrinsic motivation in schizophrenia are discussed.},
  affiliation = {University of Southern California, School of Social Work, CA, USA. nakagami@usc.edu},
  number = {1-3},
  pages = {95--104},
  volume = {105},
  year = {2008},
  month = {Oct},
  language = {eng},
  keywords = {Personal Autonomy, Cognition Disorders, Female, Schizophrenic Psychology, Neuropsychological Tests, Self Efficacy, Adult, Community Mental Health Services, Motivation, Adaptation: Psychological, Models: Psychological, Humans, Schizophrenia, Outcome Assessment (Health Care), Psychiatric Status Rating Scales, Social Adjustment, Brief Psychiatric Rating Scale, Male, Social Perception},
  date-added = {2010-02-12 14:44:15 +0100},
  date-modified = {2010-07-29 19:50:06 +0200},
  doi = {10.1016/j.schres.2008.06.015},
  pii = {S0920-9964(08)00285-5},
  pmid = {18715756},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5489},
  rating = {0}
}
@article{Wuthrich:2001p11677,
  author = {V Wuthrich and T C Bates},
  journal = {Personality and Individual Differences},
  title = {Schizotypy and latent inhibition: non-linear linkage between psychometric and cognitive markers},
  abstract = {Auditory latent inhibition (LI) and schizotypy were measured in (n=54), showing that LI was an inver- ted-U function of schizotypy score. Only average levels of schizotypy were associated with undiminished LI while both low- and high-SPQ subjects showed reduced LI. No relationship was found between LI and either psychoticism or any of the {\textregistered}ve NEO PI-R domains. These results complement the similar complex relationship of neuroleptic drug dose effects on LI in normals and schizophrenics. A priming task and the unusual uses and pattern meanings measures of creativity were related to personality measures of schizo- typy, N, E, and O (but not the EPQ-R psychoticism, LI, or priming performance). Priming effects tracked the inverted-U function of schizotypal personality questionnaire (SPQ) scale scores shown in the LI task. It is suggested that LI is dependent on a non-linear interaction with masking task load and attentional allo- cation, modulated by schizotypy.},
  pages = {783--798},
  volume = {30},
  year = {2001},
  date-added = {2010-05-14 21:17:54 +0200},
  date-modified = {2010-05-14 21:19:26 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Wuthrich-2001-Personality%20and%20Individual%20Differences_Schizotypy%20and%20laten.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11677},
  rating = {4}
}
@article{Verkuilen:2006p6252,
  author = {J Verkuilen},
  title = {The Fisher Information Function in Ideal Point Item Response Models For Pick Any/n Data},
  abstract = {In the last two decades, researchers have developed a number of item response models for the analysis of preference data in which the regression between latent trait θ and item responses, P(θ), is single-peaked. As opposed to the monotonic functions such as the logistic function common to IRT for dominance data, these models are probabilistic analogues of Coombs' deterministic unfolding models. One potential barrier to the wider acceptance of such models is the curious fact that most ideal point item response models have bimodal item information functions. Unfortunately, mathematically rigorous explanations for this unusual behavior have not been provided by authors. More broadly, properties of the information function of ideal point IRT models are unknown. This article proves several theorems about the IIFs of ideal point models, in particular, showing that the IIF can be bimodal, unimodal, or singular depending on qualitative characteristics of P (θ), in particular the maximum value of P(θ) and P′′(θ). The importance of these results for test construction is also discussed and illustrated through a simple empirical example.},
  year = {2006},
  date-added = {2010-02-19 21:28:19 +0100},
  date-modified = {2010-02-19 21:28:49 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Verkuilen-2006-_The%20Fisher%20Informati.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6252},
  rating = {0}
}
@article{Dorard:2008p13994,
  author = {G{\'e}raldine Dorard and Sylvie Berthoz and Mark G Haviland and Olivier Phan and Maurice Corcos and Catherine Bungener},
  journal = {Compr Psychiatry},
  title = {Multimethod alexithymia assessment in adolescents and young adults with a cannabis use disorder},
  abstract = {The value of alexithymia assessments in medical and psychiatric research is well documented, but such assessments in cannabis abusers are scarce. Moreover, despite repeated calls for multimethod alexithymia evaluations, researchers typically use 1 self-report only: the 20-item Toronto Alexithymia Scale. Herein, we evaluated (1) the psychometric properties of the Observer Alexithymia Scale (OAS), (2) the correspondence between 3 alexithymia measures, (3) OAS raters' affect and its relationship to OAS scores, and (4) cannabis abusers' alexithymic features. Eighty-seven cannabis abusers completed self-reports measuring alexithymia (Toronto Alexithymia Scale, Bermond-Vorst Alexithymia Questionnaire-B), depression (13-item Beck Depression Inventory), and anxiety (State and Trait Anxiety Inventory-Form Y) and asked relatives to rate them using the OAS. The raters also completed the self-report scales. The OAS met acceptable reliability and validity standards, with the exception of relatively low interrater reliability for one of its subscales. Rater affect appeared to influence OAS scores, albeit slightly. Patients' OAS scores were higher than scores reported for people-in-general samples and lower than those for outpatient clinical samples. Alexithymia rates were similar to those previously reported in cannabis abusers. Our results demonstrated the adequacy and appropriateness of the OAS in these (and related) clinical samples, which may encourage multimethod alexithymia assessments in both research and clinical practice.},
  affiliation = {Laboratory of Clinical Psychopathology and Neuropsychology, Paris Descartes University, Paris, France. geraldinedorard@yahoo.fr},
  number = {6},
  pages = {585--92},
  volume = {49},
  year = {2008},
  month = {Jan},
  language = {eng},
  keywords = {Male, Humans, Adolescent, Reproducibility of Results, Marijuana Abuse, Female, Adult, Affective Symptoms, Psychometrics, Psychological Tests, Diagnosis: Dual (Psychiatry), France, Observer Variation},
  date-added = {2010-08-04 09:22:25 +0200},
  date-modified = {2010-08-04 09:22:25 +0200},
  doi = {10.1016/j.comppsych.2008.05.001},
  pii = {S0010-440X(08)00072-2},
  pmid = {18970907},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Dorard-2008-Compr%20Psychiatry_Multimethod%20alexithy.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13994},
  rating = {0}
}
@article{Johnson:2004p11157,
  author = {M S Johnson},
  title = {Item response models and their use in measuring food insecurity and hunger},
  abstract = {This paper aims to give a general discussion of parametric item response theory models, paying close atten- tion to the Rasch model and its extensions for the analysis of multiple dichotomous and polytomous items. As part of this discussion the paper reviews both the models commonly used in IRT and the procedures utilized to estimate the parameters of these models, and their implications.
After giving a general introduction to IRT models the paper examines the appropriateness of these models for the measurement of food security and hunger. Specifically, the paper examines how appropriate IRT is for the analysis of the food security items by examining a subset of data from the 2002 CPS, and then asks the question of whether or not the propensity measured by the food security items is in fact related to true food insecurity.
Finally, the paper examines how one might classify survey respondents into one of the three food security classes and/or estimate the proportions of individuals in the population that fall into each of these classes.},
  year = {2004},
  date-added = {2010-04-25 19:26:33 +0200},
  date-modified = {2010-04-25 19:27:07 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Johnson-2004-_Item%20response%20models.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11157},
  rating = {0}
}
@article{Smits:2003p12895,
  author = {D J Smits and Paul De Boeck and M Hoskens},
  journal = {Applied Psychological Measurement},
  title = {Examining the Structure of Concepts: Using Interactions Between Items},
  abstract = {A framework is presented for modeling the relational structure of concepts using item response theory (IRT) models with interactions between the items, so-called models with local item dependency (LID). The proposed approach works for unidimensional and multidimensional concepts. For the relational structure of a concept to be analyzed, two types of items are used: items that directly refer to the concept and items that refer to the underlying components. The dependencies (the LIDs) are included in the model to analyze the mutual relations between the components and between the components and the concept. In a study on guilt, it was found that a unidimensional model complemented with situation-specific dependencies could explain the data that were gathered. Because of its flexibility, the approach is a promising tool for a structural analysis of concepts.},
  number = {6},
  pages = {415--439},
  volume = {27},
  year = {2003},
  date-added = {2010-06-24 13:49:26 +0200},
  date-modified = {2010-07-29 20:46:12 +0200},
  doi = {10.1177/0146621603259277},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Smits-2003-Applied%20Psychological%20Measurement_Examining%20the%20Struct.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12895},
  rating = {4}
}
@article{Farmer:2008p13926,
  author = {Richard F Farmer and Lewis R Goldberg},
  journal = {Psychol Assess},
  title = {A psychometric evaluation of the revised Temperament and Character Inventory (TCI-R) and the TCI-140},
  abstract = {The psychometric properties of the newest version of the Temperament and Character Inventory (the TCI-R) were evaluated in a large (n = 727) community sample, as was the TCI-140, a short inventory derivative. Facets-to-scale confirmatory and exploratory factor analyses of the TCI-R did not support the organization of temperament and character facet scales within their superordinate domains. Five of the 29 facet scales also displayed relatively low internal consistency (a < .70). Factor analyses of the TCI-140 item set yielded only limited support for hypothesized item-to-scale memberships. Harm Avoidance, Novelty Seeking, and Self-Directedness items, in particular, were not well differentiated. Although psychometrically comparable, the TCI-R and the TCI-140 demonstrate many of the limitations of earlier inventory versions. Implications associated with the use of the TCI-R and TCI-140 and C. R. Cloninger's theory of personality are discussed.},
  affiliation = {Oregon Research Institute, Eugene, OR 97403, USA. rfarmer@ori.org},
  number = {3},
  pages = {281--91},
  volume = {20},
  year = {2008},
  month = {Sep},
  language = {eng},
  keywords = {Humans, Male, Female, Personality Inventory, Character, Psychometrics, Temperament, Middle Aged},
  date-added = {2010-07-29 18:55:37 +0200},
  date-modified = {2010-07-29 19:45:39 +0200},
  doi = {10.1037/a0012934},
  pii = {2008-12234-009},
  pmid = {18778164},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Farmer-2008-Psychol%20Assess_A%20psychometric%20evalu.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13926},
  rating = {4}
}
@article{Summerfeldt:1999p6852,
  author = {L J Summerfeldt and M A Richter and M M Antony and R P Swinson},
  journal = {Behaviour Research and Therapy},
  title = {Symptom structure in obsessive-compulsive disorder: a confirmatory factor-analytic study},
  abstract = {Although obsessive-compulsive disorder (OCD) has long been a unitary diagnosis, there is much recent interest in its potential heterogeneity, as manifested by symptom subgroups. This study evaluated existing models of symptom structure in a sample of 203 individuals with OCD. Using confirmatory factor analysis, we examined the ability of each model to account for two levels of data: a priori symptom groupings (second-order) and individual symptoms, identified by the Yale-Brown Obsessive Compulsive Scale symptom checklist. Four models were examined: a single-factor, a two-factor (i.e., obsessions and compulsions), and two multidimensional models, comprising three and four factors. Adequate fit was found solely for the four-factor model--specifying obsessions/checking, symmetry/ordering, contamination/cleaning, and hoarding--but only at the second-order level; it did not account for relationships among discrete symptoms. Parameter estimates showed within-factor heterogeneity, as well as overlap between factors, most notably the two representing checking and contamination-related symptoms. The implications of these findings are discussed. Results provide evidence for the multidimensionality of OCD symptoms, but suggest that a comprehensive model has yet to be identified. They also point to the inadequacy of groupings based solely upon overt behavioural similarities (e.g., 'checking'). Recommendations are made for future research.},
  affiliation = {Psychology Department, St. Joseph's Hospital, Hamilton, Ontario, Canada. Isummerf@stjosham.on.ca},
  number = {4},
  pages = {297--311},
  volume = {37},
  year = {1999},
  month = {Apr},
  language = {eng},
  keywords = {Chi-Square Distribution, Obsessive Behavior, Male, Female, Models: Psychological, Adult, Reproducibility of Results, Compulsive Behavior, Humans, Obsessive-Compulsive Disorder, Factor Analysis: Statistical},
  date-added = {2010-03-06 10:31:25 +0100},
  date-modified = {2010-07-29 19:18:49 +0200},
  pii = {S000579679800134X},
  pmid = {10204276},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6852},
  rating = {0}
}
@article{Li:1997p2692,
  author = {M N F Li and S Olejnik},
  journal = {Applied Psychological Measurement},
  title = {The Power of Rasch Person-Fit Statistics in Detecting Unusual Response Patterns},
  number = {3},
  pages = {215--231},
  volume = {21},
  year = {1997},
  date-added = {2010-01-13 10:12:24 +0100},
  date-modified = {2010-07-29 19:16:53 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Li-1997-Applied%20Psychological%20Measurement_The%20Power%20of%20Rasch%20P.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2692},
  rating = {0}
}
@article{Wittes:2002p6420,
  author = {Janet Wittes},
  journal = {Epidemiol Rev},
  title = {Sample size calculations for randomized controlled trials},
  affiliation = {Statistics Collaborative, Inc., 1710 Rhode Island Avenue NW, Suite 200, Washington, DC 20036, USA. janet@statcollab.com},
  number = {1},
  pages = {39--53},
  volume = {24},
  year = {2002},
  month = {Jan},
  language = {eng},
  keywords = {Humans, Research Design, Bias (Epidemiology), Sample Size, Randomized Controlled Trials as Topic, Data Interpretation: Statistical},
  date-added = {2010-02-23 08:27:10 +0100},
  date-modified = {2010-02-23 08:27:13 +0100},
  pmid = {12119854},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Wittes-2002-Epidemiol%20Rev_Sample%20size%20calculat.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6420},
  rating = {3}
}
@article{Yin:1996p3695,
  author = {Y Yin and C W Carter},
  journal = {Nucleic Acids Res},
  title = {Incomplete factorial and response surface methods in experimental design: yield optimization of tRNA(Trp) from in vitro T7 RNA polymerase transcription},
  abstract = {We have studied the yield of Escherichia coli tRNA(Trp) obtained from in vitro T7 RNA polymerase transcription using incomplete factorial and response surface methods. Incomplete factorial experiments were first used to estimate the relative impact of six variables on the yield of tRNA(Trp). Fifteen trials were performed according to a balanced and randomized design. The correlation between observed yield and all experimental variables was identified by stepwise multiple linear regression analysis. The concentrations of T7 RNA polymerase, DNA template, NTP and MgCl2 proved to be significantly correlated with the yield of tRNA(Trp). We then optimized the yield with respect to each of these four variables simultaneously with a designed, response surface experiment based on the Hardin-Sloane minimum prediction variance algorithm. Twenty experiments were performed, in duplicate, to sample the quadratic surface relating the yield to the four significant variables. Coefficients of the quadratic function with all two-factor interactions were evaluated by stepwise regression using least squares, and significant coefficients were retained. Partial differentiation of the resulting quadratic model showed it to possess an optimum. Transcription performed at the corresponding conditions yielded 6-fold more tRNA(Trp) than the initial conditions, confirming the predictive value of the experimentally determined response surface.},
  affiliation = {Department of Biochemistry and Biophysics, University of North Carolina at Chapel Hill 27599-7260, USA.},
  number = {7},
  pages = {1279--86},
  volume = {24},
  year = {1996},
  month = {Apr},
  language = {eng},
  keywords = {DNA-Directed RNA Polymerases, Magnesium Chloride, Viral Proteins, RNA: Transfer: Trp, Base Composition, Regression Analysis, Templates: Genetic, Ribonucleotides, Transcription: Genetic, Research Design},
  date-added = {2010-01-16 20:34:28 +0100},
  date-modified = {2010-01-16 20:34:28 +0100},
  pii = {5b0287},
  pmid = {8614631},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Yin-1996-Nucleic%20Acids%20Res_Incomplete%20factorial.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3695},
  rating = {0}
}
@article{ReichbornKjennerud:2010p13516,
  author = {Ted Reichborn-Kjennerud},
  journal = {Dialogues Clin Neurosci},
  title = {The genetic epidemiology of personality disorders},
  abstract = {Genetic epidemiologic studies indicate that all ten personality disorders (PDs) classified on the DSM-IV axis II are modestly to moderately heritable. Shared environmental and nonadditive genetic factors are of minor or no importance. No sex differences have been identified, Multivariate studies suggest that the extensive comorbidity between the PDs can be explained by three common genetic and environmental risk factors. The genetic factors do not reflect the DSM-IV cluster structure, but rather: i) broad vulnerability to PD pathology or negative emotionality; ii) high impulsivity/low agreeableness; and iii) introversion. Common genetic and environmental liability factors contribute to comorbidity between pairs or clusters of axis I and axis II disorders. Molecular genetic studies of PDs, mostly candidate gene association studies, indicate that genes linked to neurotransmitter pathways, especially in the serotonergic and dopaminergic systems, are involved. Future studies, using newer methods like genome-wide association, might take advantage of the use of endophenotypes.},
  affiliation = {Division of Mental Health, Norwegian Institute of Public Health Institute of Psychiatry, University of Oslo, Norway. ted.reichborn-kjennerud@fhi.no},
  number = {1},
  pages = {103--14},
  volume = {12},
  year = {2010},
  month = {Jan},
  language = {eng},
  keywords = {Diagnostic and Statistical Manual of Mental Disorders, Risk Factors, Humans, Personality Disorders, Molecular Epidemiology, Personality Inventory, Environment, Genetic Predisposition to Disease, Genetic Association Studies},
  date-added = {2010-07-07 21:05:13 +0200},
  date-modified = {2010-07-07 21:05:18 +0200},
  pmid = {20373672},
  url = {http://www.ncbi.nlm.nih.gov/sites/entrez?Db=pubmed&Cmd=Retrieve&list_uids=20373672&dopt=abstractplus},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13516},
  rating = {0}
}
@article{Ioannidis:2009p10852,
  author = {John P A Ioannidis},
  journal = {CMAJ},
  title = {Integration of evidence from multiple meta-analyses: a primer on umbrella reviews, treatment networks and multiple treatments meta-analyses},
  affiliation = {Department of Hygiene and Epidemiology, University of Ioannina School of Medicine, Ioannina 45110, Greece. jioannid@cc.uoi.gr},
  number = {8},
  pages = {488--93},
  volume = {181},
  year = {2009},
  month = {Oct},
  language = {eng},
  keywords = {Humans, Practice Guidelines as Topic, Evidence-Based Medicine, Clinical Trials as Topic},
  date-added = {2010-04-10 03:32:17 +0200},
  date-modified = {2010-07-29 19:23:30 +0200},
  doi = {10.1503/cmaj.081086},
  pii = {cmaj.081086},
  pmid = {19654195},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Ioannidis-2009-CMAJ_Integration%20of%20evide.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p10852},
  rating = {4}
}
@article{Purcell2007,
  author = {S Purcell and B Neale and K Todd-Brown and L Thomas and M A R Ferreira and D Bender and J Maller and P Sklar and P I W de Bakker and M J Daly and P C Sham},
  journal = {American Journal of Human Genetics},
  title = {PLINK: a toolset for whole-genome association and population-based linkage analysis},
  number = {3},
  pages = {559--575},
  volume = {81},
  year = {2007},
  date-added = {2010-01-12 14:26:40 +0100},
  date-modified = {2010-01-12 14:26:52 +0100},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2526},
  rating = {0}
}
@article{KoniakGriffin:1988p8587,
  author = {D Koniak-Griffin and M Rummell},
  journal = {Matern Child Nurs J},
  title = {Temperament in infancy: stability, change, and correlates},
  abstract = {The present study investigated whether temperament categories and diagnoses of the Revised Infant Temperament Questionnaire (RITQ) remain stable during infancy. Additionally, the relationships between RITQ ratings and scores on the Brazelton Neonatal Behavioral Assessment Scale and the Bayley Scales of Infant Development were evaluated. The sample included 79 nonrisk infants. The results indicate that most categories of temperament, as well as diagnostic clusters, remain stable from 4 to 8 months of life. The majority of NBAS dimensions and Bayley mental scores were not significantly associated with temperament ratings. The antecedents of ratings of infants' difficultness were similarly unidentified by mothers' perceptions of their infant's behavior.},
  number = {1},
  pages = {25--40},
  volume = {17},
  year = {1988},
  month = {Jan},
  language = {eng},
  keywords = {Child Psychology, Autonomic Nervous System, Male, Female, Adult, Temperament, Psychological Tests, Infant, Personality, Humans, Adaptation: Psychological, Age Factors},
  date-added = {2010-03-22 00:10:31 +0100},
  date-modified = {2010-03-22 00:10:31 +0100},
  pmid = {3393027},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8587},
  rating = {0}
}
@techreport{Cull:2002,
  author = {A Cull and M Sprangers and K Bjordal and Neil K Aaronson and K West and A Bottomley},
  journal = {Techreport},
  title = {Translation Procedure},
  affiliation = {EORTC Quality of Life Group},
  year = {2002},
  month = {Feb},
  date-added = {2010-01-10 11:33:09 +0100},
  date-modified = {2010-07-29 20:13:56 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Cull-2002-Techreport_Translation%20Procedur.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2080},
  rating = {0}
}
@article{Mather:2003p10206,
  author = {Mara Mather and Laura L Carstensen},
  journal = {Psychol Sci},
  title = {Aging and attentional biases for emotional faces},
  abstract = {We examined age differences in attention to and memory for faces expressing sadness, anger, and happiness. Participants saw a pair of faces, one emotional and one neutral, and then a dot probe that appeared in the location of one of the faces. In two experiments, older adults responded faster to the dot if it was presented on the same side as a neutral face than if it was presented on the same side as a negative face. Younger adults did not exhibit this attentional bias. Interactions of age and valence were also found for memory for the faces, with older adults remembering positive better than negative faces. These findings reveal that in their initial attention, older adults avoid negative information. This attentional bias is consistent with older adults' generally better emotional well-being and their tendency to remember negative less well than positive information.},
  affiliation = {University of California, Santa Cruz, CA 95064, USA. mather@ucsc.edu},
  number = {5},
  pages = {409--15},
  volume = {14},
  year = {2003},
  month = {Sep},
  language = {eng},
  keywords = {Male, Adult, Facial Expression, Pattern Recognition: Visual, Female, Humans, Aging, Emotions, Middle Aged, Aged: 80 and over, Perceptual Defense, Adolescent, Reaction Time, Aged, Mental Recall, Adaptation: Psychological, Attention},
  date-added = {2010-04-01 18:19:51 +0200},
  date-modified = {2010-07-29 19:46:15 +0200},
  pii = {psci_1455},
  pmid = {12930469},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Mather-2003-Psychol%20Sci_Aging%20and%20attentiona.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p10206},
  rating = {0}
}
@article{Wu:2008p11432,
  author = {X Wu and V Kumar and J R Quinlan and J GhoshQ Yang and H Motoda and G J McLachlan and A Ng and B Liu and P S Yu and Z H Zhou and M Steinbach and D J Hand and D Steinberg},
  journal = {Knowl Inf Syst},
  title = {Top 10 algorithms in data mining},
  abstract = {This paper presents the top 10 data mining algorithms identified by the IEEE International Conference on Data Mining (ICDM) in December 2006: C4.5, k-Means, SVM, Apriori, EM, PageRank, AdaBoost, kNN, Naive Bayes, and CART. These top 10 algorithms are among the most influential data mining algorithms in the research community. With each algorithm, we provide a description of the algorithm, discuss the impact of the algorithm, and review current and further research on the algorithm. These 10 algorithms cover classification, clustering, statistical learning, association analysis, and link mining, which are all among the most important topics in data mining research and development.},
  pages = {1--37},
  volume = {14},
  year = {2008},
  date-added = {2010-05-01 17:13:05 +0200},
  date-modified = {2010-05-01 17:15:35 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Wu-2008-Knowl%20Inf%20Syst_Top%2010%20algorithms%20in.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11432},
  rating = {0}
}
@article{Pan:2007p11232,
  author = {Lin Pan and Carole Ober and Mark Abney},
  journal = {Genet Epidemiol},
  title = {Heritability estimation of sex-specific effects on human quantitative traits},
  abstract = {Recent studies have suggested that sex-specific genetic architecture could be because of the effects of autosomal genes that are differentially expressed in males and females. Yet, few studies have explored the effects of X-linked genes on sex-specific genetic architecture. In this study, we extended the variance component, maximum likelihood method to evaluate the relative contributions of sex-specific effects on both autosomes and the X chromosome to estimates of heritability of 20 quantitative human phenotypes in the Hutterites. Seventeen of these traits were previously analyzed in this population under a model that did not include X chromosomal effects; three traits are analyzed for the first time (age at menarche, percent fat and fat-free mass [FFM]). Seven traits (systolic blood pressure (SBP), adult height, fasting insulin, triglycerides, lipoprotein (a) [Lp(a)], serotonin, and age at menarche) showed significant X-linked effects; three of these (SBP, adult height, and triglycerides) showed X-linked effects only in males. Four traits (Lp(a), low-density lipoprotein cholesterol, ratio of percent predicted forced expiratory volume at 1 s/forced vital capacity, and FFM) showed significant sex-environment interactions, and two traits (high-density lipoprotein cholesterol and FFM) showed significant sex-specific autosomal effects. Our analyses demonstrate that sex-specific genetic effects may not only be common in human quantitative traits, but also that the X chromosome both plays a large role in these effects and has a variable influence between the sexes.},
  affiliation = {Department of Human Genetics, The University of Chicago, 920 East 58th Street, Chicago, IL 60637, USA.},
  number = {4},
  pages = {338--47},
  volume = {31},
  year = {2007},
  month = {May},
  language = {eng},
  keywords = {Quantitative Trait: Heritable, Humans, Founder Effect, South Dakota, Models: Genetic, Sex Characteristics, Genes: X-Linked, Male, Female, Adult, Chromosomes: Human: X, Phenotype},
  date-added = {2010-04-25 21:31:01 +0200},
  date-modified = {2010-04-25 21:31:01 +0200},
  doi = {10.1002/gepi.20214},
  pmid = {17323368},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Pan-2007-Genet%20Epidemiol_Heritability%20estimat.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11232},
  rating = {0}
}
@article{Schmiedek:2007p1542,
  author = {Florian Schmiedek and Klaus Oberauer and Oliver Wilhelm and Heinz-Martin S{\"u}ss and Werner W Wittmann},
  journal = {J Exp Psychol Gen},
  title = {Individual differences in components of reaction time distributions and their relations to working memory and intelligence},
  abstract = {The authors bring together approaches from cognitive and individual differences psychology to model characteristics of reaction time distributions beyond measures of central tendency. Ex-Gaussian distributions and a diffusion model approach are used to describe individuals' reaction time data. The authors identified common latent factors for each of the 3 ex-Gaussian parameters and for 3 parameters central to the diffusion model using structural equation modeling for a battery of choice reaction tasks. These factors had differential relations to criterion constructs. Parameters reflecting the tail of the distribution (i.e., tau in the ex-Gaussian and drift rate in the diffusion model) were the strongest unique predictors of working memory, reasoning, and psychometric speed. Theories of controlled attention and binding are discussed as potential theoretical explanations.},
  affiliation = {Center for Lifespan Psychology, Max Planck Institute for Human Development, Berlin, Germany. schmiedek@mpib-berlin.mpg.de},
  number = {3},
  pages = {414--29},
  volume = {136},
  year = {2007},
  month = {Aug},
  language = {eng},
  keywords = {Multivariate Analysis, Adult, Normal Distribution, Problem Solving, Male, Orientation, Semantics, Individuality, Humans, Intelligence, Reaction Time, Choice Behavior, Female, Pattern Recognition: Visual, Concept Formation, Statistics as Topic, Memory: Short-Term},
  date-added = {2010-01-07 16:29:04 +0100},
  date-modified = {2010-01-07 16:29:04 +0100},
  doi = {10.1037/0096-3445.136.3.414},
  pii = {2007-11669-004},
  pmid = {17696691},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Schmiedek-2007-J%20Exp%20Psychol%20Gen_Individual%20differenc.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1542},
  rating = {0}
}
@article{Burton:2007p5769,
  author = {Paul R Burton and David G Clayton and Lon R Cardon and Nick Craddock and Panos Deloukas and Audrey Duncanson and Dominic P Kwiatkowski and Mark I McCarthy and Willem H Ouwehand and Nilesh J Samani and John A Todd and Peter Donnelly and Jeffrey C Barrett and Dan Davison and Doug Easton and David Evans and Hin-Tak Leung and Jonathan L Marchini and Andrew P Morris and Chris C A Spencer and Martin D Tobin and Antony P Attwood and James P Boorman and Barbara Cant and Ursula Everson and Judith M Hussey and Jennifer D Jolley and Alexandra S Knight and Kerstin Koch and Elizabeth Meech and Sarah Nutland and Christopher V Prowse and Helen E Stevens and Niall C Taylor and Graham R Walters and Neil M Walker and Nicholas A Watkins and Thilo Winzer and Richard W Jones and Wendy L Mcardle and Susan M Ring and David P Strachan and Marcus Pembrey and Gerome Breen and David St Clair and Sian Caesar and Katherine Gordon-Smith and Lisa Jones and Christine Fraser and Elaine K Green and Detelina Grozeva and Marian L Hamshere and Peter A Holmans and Ian R Jones and George Kirov and Valentina Moskvina and Ivan Nikolov and Michael C O'donovan and Michael J Owen and David A Collier and Amanda Elkin and Anne Farmer and Richard Williamson and Peter Mcguffin and Allan H Young and I Nicol Ferrier and Stephen G Ball and Anthony J Balmforth and Jennifer H Barrett and D Timothy Bishop and Mark M Iles and Azhar Maqbool and Nadira Yuldasheva and Alistair S Hall and Peter S Braund and Richard J Dixon and Massimo Mangino and Suzanne Stevens and John R Thompson and Francesca Bredin and Mark Tremelling and Miles Parkes and Hazel Drummond and Charles W Lees and Elaine R Nimmo and Jack Satsangi and Sheila A Fisher and Alastair Forbes and Cathryn M Lewis and Clive M Onnie and Natalie J Prescott and Jeremy Sanderson and Christopher G Mathew and Jamie Barbour and M Khalid Mohiuddin and Catherine E Todhunter and John C Mansfield and Tariq Ahmad and Fraser R Cummings and Derek P Jewell and John Webster and Morris J Brown and G Mark Lathrop and John Connell and Anna Dominiczak and Carolina A Braga Marcano and Beverley Burke and Richard Dobson and Johannie Gungadoo and Kate L Lee and Patricia B Munroe and Stephen J Newhouse and Abiodun Onipinla and Chris Wallace and Mingzhan Xue and Mark Caulfield and Martin Farrall and Anne Barton and The Biologics in RA Genetics and Genomics Braggs and Ian N Bruce and Hannah Donovan and Steve Eyre and Paul D Gilbert and Samantha L Hider and Anne M Hinks and Sally L John and Catherine Potter and Alan J Silman and Deborah P M Symmons and Wendy Thomson and Jane Worthington and David B Dunger and Barry Widmer and Timothy M Frayling and Rachel M Freathy and Hana Lango and John R B Perry and Beverley M Shields and Michael N Weedon and Andrew T Hattersley and Graham A Hitman and Mark Walker and Kate S Elliott and Christopher J Groves and Cecilia M Lindgren and Nigel W Rayner and Nicholas J Timpson and Eleftheria Zeggini and Melanie Newport and Giorgio Sirugo and Emily Lyons and Fredrik Vannberg and Adrian V S Hill and Linda A Bradbury and Claire Farrar and Jennifer J Pointon and Paul Wordsworth and Matthew A Brown and Jayne A Franklyn and Joanne M Heward and Matthew J Simmonds and Stephen C L Gough and Sheila Seal and Breast Cancer Susceptibility Collaboration Uk and Michael R Stratton and Nazneen Rahman and Maria Ban and An Goris and Stephen J Sawcer and Alastair Compston and David Conway and Muminatou Jallow and Kirk A Rockett and Suzannah J Bumpstead and Amy Chaney and Kate Downes and Mohammed J R Ghori and Rhian Gwilliam and Sarah E Hunt and Michael Inouye and Andrew Keniry and Emma King and Ralph McGinnis and Simon Potter and Rathi Ravindrarajah and Pamela Whittaker and Claire Widden and David Withers and Niall J Cardin and Teresa Ferreira and Joanne Pereira-Gale and Ingileif B Hallgrimsd|[Oacute]|Ttir and Bryan N Howie and Zhan Su and Yik Ying Teo and Damjan Vukcevic and David Bentley and Alistair Compston},
  journal = {Nature},
  title = {Genome-wide association study of 14,000 cases of seven common diseases and 3,000 shared controls},
  number = {7145},
  pages = {661},
  volume = {447},
  year = {2007},
  month = {Jun},
  language = {en},
  date-added = {2010-02-16 15:45:36 +0100},
  date-modified = {2010-02-16 15:45:39 +0100},
  doi = {doi:10.1038/nature05911},
  url = {http://www.nature.com/nature},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Burton-2007-Nature_Genome-wide%20associat.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5769},
  read = {Yes},
  rating = {0}
}
@article{Thissen:2005p11591,
  author = {D Thissen and M C Edwards},
  journal = {NCME},
  title = {Diagnostic Scores Augmented Using Multidimensional Item Response Theory: Preliminary Investigation of MCMC Strategies},
  abstract = {The procedures for computing augmented subscores described by Wainer et al. (2001) may be thought of as a multi-stage estimation procedure for proficiency estimates within a special case of a multidimensional item response theory (MIRT) model, with as many dimensions as there are subscales. In this paper we describe steps toward a simultaneous (one-stage) estimation system for constrained MIRT models, using Markov chain Monte Carlo (MCMC) approaches to obtain the item parameters and conventional IRT computation to produce scale scores that are augmented subscores. Such a system would provide, in a single integrated analysis, more efficient estimates of subscores for mutually exclusive sets of items (``independent clustering'') that are computed by the Wainer et al. (2001) procedure, as well as subscores for tests in which the assignment of items to subscales is not mutually exclusive (the latter has been referred to as ``multi-component mapping''). Combined with modification of a test's item specifications to include items that more specifically measure individual skills, and multi-component mapping, useful subscores (or ``skill scores'') may be computable from data obtained with tests very much like current large-scale assessments.},
  year = {2005},
  date-added = {2010-05-09 21:13:34 +0200},
  date-modified = {2010-05-09 21:14:29 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Thissen-2005-NCME_Diagnostic%20Scores%20Au.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11591},
  rating = {0}
}
@article{Marlin:2009p12321,
  author = {B M Marlin and M Schmidt and K P Murphy},
  title = {Group Sparse Priors for Covariance Estimation},
  abstract = {Recently it has become popular to learn sparse Gaussian graphical models (GGMs) by imposing l1 or group l1,2 penalties on the elements of the precision matrix. This penalized likelihood approach results in a tractable convex optimization problem. In this paper, we reinterpret these results as per- forming MAP estimation under a novel prior which we call the group l1 and l1,2 positive- definite matrix distributions. This enables us to build a hierarchical model in which the l1 regularization terms vary depending on which group the entries are assigned to, which in turn allows us to learn block struc- tured sparse GGMs with unknown group as- signments. Exact inference in this hierarchi- cal model is intractable, due to the need to compute the normalization constant of these matrix distributions. However, we derive up- per bounds on the partition functions, which lets us use fast variational inference (optimiz- ing a lower bound on the joint posterior). We show that on two real world data sets (mo- tion capture and financial data), our method which infers the block structure outperforms a method that uses a fixed block structure, which in turn outperforms baseline methods that ignore block structure.},
  year = {2009},
  date-added = {2010-06-12 09:39:18 +0200},
  date-modified = {2010-06-12 09:40:33 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Marlin-2009-_Group%20Sparse%20Priors.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12321},
  rating = {0}
}
@article{Huppert:2009p12791,
  author = {F A Huppert},
  journal = {Perspectives on Psychological Science},
  title = {A New Approach to Reducing Disorder and Improving Well-Being},
  abstract = {Psychological science has usually approached the treatment of disorder through research on individual combinations of risk and protective factors (including life experiences, thinking styles, behaviors, social relationships and genes) and the application of interventions that focus on improvements in the individual. However, we can do better than this. Not only should we be aiming to enhance well- being rather than merely reducing disorder, but we should also be doing so for the majority of people rather than the few who have a disorder. In this article, I focus on the mental health spectrum and make the case for a broad population- based approach. I argue that a very small shift in the pop- ulation mean of the underlying symptoms or risk factors can do more to enhance well-being and reduce disorder than would any amount of intervention with individuals who need help. Examples from research on alcohol abuse and psy- chological distress are presented to illustrate the value of a population-based approach.},
  number = {1},
  pages = {108--111},
  volume = {4},
  year = {2009},
  date-added = {2010-06-18 21:08:40 +0200},
  date-modified = {2010-06-18 21:10:00 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Huppert-2009-Perspectives%20on%20Psychological%20Science_A%20New%20Approach%20to%20Re.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12791},
  rating = {0}
}
@article{Orme:1998p13239,
  author = {B Orme},
  title = {Sample Size Issues for Conjoint Analysis Studies},
  year = {1998},
  date-added = {2010-07-01 18:01:21 +0200},
  date-modified = {2010-07-01 18:01:43 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Orme-1998-_Sample%20Size%20Issues%20f.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13239},
  rating = {0}
}
@article{Xie:2010p13228,
  author = {Benhuai Xie and Wei Pan and Xiaotong Shen},
  journal = {Bioinformatics},
  title = {Penalized mixtures of factor analyzers with application to clustering high-dimensional microarray data},
  abstract = {MOTIVATION: Model-based clustering has been widely used, e.g. in microarray data analysis. Since for high-dimensional data variable selection is necessary, several penalized model-based clustering methods have been proposed t{\o}realize simultaneous variable selection and clustering. However, the existing methods all assume that the variables are independent with the use of diagonal covariance matrices. RESULTS: To model non-independence of variables (e.g. correlated gene expressions) while alleviating the problem with the large number of unknown parameters associated with a general non-diagonal covariance matrix, we generalize the mixture of factor analyzers to that with penalization, which, among others, can effectively realize variable selection. We use simulated data and real microarray data to illustrate the utility and advantages of the proposed method over several existing ones.},
  affiliation = {Division of Biostatistics, School of Public Health and School of Statistics, University of Minnesota, Minneapolis, MN, USA.},
  number = {4},
  pages = {501--8},
  volume = {26},
  year = {2010},
  month = {Feb},
  language = {eng},
  keywords = {Cluster Analysis, Oligonucleotide Array Sequence Analysis, Computational Biology, Gene Expression Profiling},
  date-added = {2010-07-01 17:23:20 +0200},
  date-modified = {2010-07-01 17:23:26 +0200},
  doi = {10.1093/bioinformatics/btp707},
  pii = {btp707},
  pmid = {20031967},
  url = {http://bioinformatics.oxfordjournals.org/cgi/content/full/26/4/501?view=long&pmid=20031967},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Xie-2010-Bioinformatics_Penalized%20mixtures%20o.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13228},
  rating = {5}
}
@article{Fodor:2002p2914,
  author = {I K Fodor},
  title = {A Survey of Dimension Reduction Techniques},
  year = {2002},
  date-added = {2010-01-13 21:43:45 +0100},
  date-modified = {2010-01-13 21:44:17 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Fodor-2002-_A%20Survey%20of%20Dimensio.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2914},
  rating = {0}
}
@article{Bart:2010p5089,
  author = {Orit Bart and Limor Rosenberg and Navah Z Ratzon and Tal Jarus},
  journal = {Res Dev Disabil},
  title = {Development and initial validation of the Performance Skills Questionnaire (PSQ)},
  abstract = {The objectives of this study was to develop and test the psychometric properties of the Performance Skills Questionnaire (PSQ), addressed to measure performance skills of preschoolers, as reported by their parents. Participants included 231 children ranging in age from 4 to 6 years old, with mild to moderate developmental disabilities and 240 children without disabilities at same age range. Internal consistency, test-retest, construct validity, and divergent and convergent validity were assessed. The PSQ has shown good internal reliability, and temporal stability. Construct validity was supported by factor analysis which yielded 3 factors that explained almost 52% of the total variance. Significant differences were found between known groups. Convergent and divergent validity were supported by significant correlations with Visual-Motor Integration (VMI) test, and the Children Participation Questionnaire (CPQ). The PSQ is a unique tool that measures performance skills based on preschool children's everyday function. Results provide evidence in support of the PSQ as a reliable and psychometrically sound instrument.},
  affiliation = {Department of Occupational Therapy, School of Health Professions, Sackler Faculty of medicine, Tel Aviv University, Ramat Aviv, Tel Aviv, Israel.},
  number = {1},
  pages = {46--56},
  volume = {31},
  year = {2010},
  month = {Jan},
  language = {eng},
  keywords = {Male, Female, Mental Retardation, Developmental Disabilities, Cross-Sectional Studies, Humans, Child, Mass Screening, Psychometrics, Italy, Child: Preschool, Reproducibility of Results, Reference Values, Questionnaires, Comorbidity, Motor Skills Disorders, Attention Deficit Disorder with Hyperactivity},
  date-added = {2010-02-05 20:15:17 +0100},
  date-modified = {2010-02-05 20:15:17 +0100},
  doi = {10.1016/j.ridd.2009.07.021},
  pii = {S0891-4222(09)00117-6},
  pmid = {19709854},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5089},
  rating = {0}
}
@article{Senaratna:2008p4181,
  author = {B C V Senaratna and H Perera and P Fonseka},
  journal = {Ceylon Med J},
  title = {Sinhala translation of child behaviour checklist: validity and reliability},
  abstract = {OBJECTIVE: To translate the child behaviour checklist (CBCL) into Sinhala and validate it for assessment of mental health status of children aged 5-10 years. DESIGN AND SETTING: Translation/back-translation method was used to translate the English CBCL into Sinhala. Each item in the Sinhala CBCL (CBCL-S) was rated by mental health professionals to determine semantics, content, and conceptual validity types. To ascertain criterion validity, total scores obtained for CBCL-S by administering it to parents or parent surrogates of 49 girls and 80 boys aged 5-10 years attending the specialist psychiatry clinics and 69 boys and 69 girls in the same age group from the community were compared with clinical diagnoses by a child psychiatrist. Receiver operator characteristic curves were drawn to obtain the cut-off points in CBCL-S for boys and girls separately. RESULTS: Semantics, content, and conceptual and criterion validity of CBCL-S were satisfactory. At the cut-off level of 39, CBCL-S had a sensitivity of 90% and a specificity of 88% for boys and a sensitivity of 89% and a specificity of 92% for girls. Internal consistency, test-retest reliability, and inter-interviewer reliability of CBCL-S were satisfactory. INTERPRETATION: CBCL-S is a valid and reliable instrument to measure mental health status of Sinhalese children aged 5-10 years in Sri Lanka.},
  affiliation = {Community Medicine, Faculty of Medical Sciences, University of Sri Jayewardenepura. chamaravs@yahoo.com},
  number = {2},
  pages = {40--4},
  volume = {53},
  year = {2008},
  month = {Jun},
  language = {eng},
  keywords = {Sensitivity and Specificity, Child Behavior, Health Status Indicators, Child, Humans, Mental Health, Language},
  date-added = {2010-01-21 07:49:24 +0100},
  date-modified = {2010-01-21 07:49:24 +0100},
  pmid = {18678120},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Senaratna-2008-Ceylon%20Med%20J_Sinhala%20translation.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4181},
  rating = {0}
}
@article{Carter:2007p2306,
  author = {Nigel P Carter},
  journal = {Nat Genet},
  title = {Methods and strategies for analyzing copy number variation using DNA microarrays},
  abstract = {The association of DNA copy-number variation (CNV) with specific gene function and human disease has been long known, but the wide scope and prevalence of this form of variation has only recently been fully appreciated. The latest studies using microarray technology have demonstrated that as much as 12% of the human genome and thousands of genes are variable in copy number, and this diversity is likely to be responsible for a significant proportion of normal phenotypic variation. Current challenges involve developing methods not only for detecting and cataloging CNVs in human populations at increasingly higher resolution but also for determining the association of CNVs with biological function, recent human evolution, and common and complex human disease.},
  affiliation = {Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, CB10 1SA, UK. npc@sanger.ac.uk},
  number = {7 Suppl},
  pages = {S16--21},
  volume = {39},
  year = {2007},
  month = {Jul},
  language = {eng},
  keywords = {Genotype, Nucleic Acid Hybridization, Genome: Human, Genetic Variation, Humans, Polymorphism: Single Nucleotide, Phenotype, Polymerase Chain Reaction, Cloning: Molecular, Chromosomes: Artificial: Bacterial, DNA: Complementary, Gene Dosage, Oligonucleotide Array Sequence Analysis, Chromosomes: Human: Pair 18},
  date-added = {2010-01-10 12:19:52 +0100},
  date-modified = {2010-01-10 12:19:52 +0100},
  doi = {10.1038/ng2028},
  pii = {ng2028},
  pmid = {17597776},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Carter-2007-Nat%20Genet_Methods%20and%20strategi.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2306},
  rating = {0}
}
@techreport{Stage:2003,
  author = {C Stage},
  journal = {Techreport},
  title = {Classical Test Theory or Item Response Theory: The Swedish Experience},
  affiliation = {Spanish by Centro de Estudios P{\'u}blicos},
  year = {2003},
  date-added = {2010-01-10 11:33:19 +0100},
  date-modified = {2010-01-10 11:33:25 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Stage-2003-Techreport_Classical%20Test%20Theor.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2105},
  rating = {0}
}
@article{KorenKarie:2009p11021,
  author = {Nina Koren-Karie and David Oppenheim and Smadar Dolev and Nurit Yirmiya},
  journal = {J Child Psychol Psychiatry},
  title = {Mothers of securely attached children with autism spectrum disorder are more sensitive than mothers of insecurely attached children},
  abstract = {In the current study we examined the links between maternal sensitivity and children's secure attachment in a sample of 45 preschool-age boys with Autism Spectrum Disorders (ASD). We hypothesized that mothers of securely attached children would be more sensitive to their children than mothers of insecurely attached children. Children's attachment was assessed using Ainsworth's Strange Situation Procedure (SSP; Ainsworth, Blehar, Waters, {\&} Wall, 1978). Mothers' sensitivity and children's responsiveness to their mothers were assessed using the Emotional Availability Scales (Biringen, Robinson, {\&} Emde, 1993). The findings supported our hypothesis: mothers of securely attached children were more sensitive to their children even when controlling for the severity of children's diagnosis (Autism Disorder vs. Pervasive Developmental Disorder - Not Otherwise Specified (PDD-NOS)), children's level of functioning (high vs. low), and children's levels of responsiveness. The significance of sensitivity for security of attachment in ASD and the implications of these findings for the validity of the SSP in children with ASD are discussed.},
  affiliation = {Center for the Study of Child Development, University of Haifa, Haifa, Israel. nkoren@psy.haifa.ac.il},
  number = {5},
  pages = {643--50},
  volume = {50},
  year = {2009},
  month = {May},
  language = {eng},
  keywords = {Maternal Behavior, Male, Psychiatric Status Rating Scales, Questionnaires, Child: Preschool, Autistic Disorder, Object Attachment, Humans, Mother-Child Relations, Mothers, Reproducibility of Results},
  date-added = {2010-04-14 13:36:36 +0200},
  date-modified = {2010-07-29 19:32:47 +0200},
  doi = {10.1111/j.1469-7610.2008.02043.x},
  pii = {JCPP2043},
  pmid = {19207630},
  url = {http://www3.interscience.wiley.com/journal/121635363/abstract},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11021},
  rating = {0}
}
@article{Ledoit:2001p5622,
  author = {O Ledoit and M Wolf},
  title = {A Well-Conditioned Estimator For Large-Dimensional Covariance Matrices},
  abstract = {Many applied problems require a covariance matrix estimator that is not only invertible, but also well-conditioned (that is, inverting it does not amplify estimation error). For large- dimensional covariance matrices, the usual estimator---the sample covariance matrix---is typically not well-conditioned and may not even be invertible. This paper introduces an estimator that is both well-conditioned and more accurate than the sample covariance matrix asymptotically. This estimator is distribution-free and has a simple explicit formula that is easy to compute and interpret. It is the asymptotically optimal convex linear combination of the sample covariance matrix with the identity matrix. Optimality is meant with respect to a quadratic loss function, asymptotically as the number of observations and the number of variables go to infinity together. Extensive Monte-Carlo confirm that the asymptotic results tend to hold well in finite sample.},
  year = {2001},
  date-added = {2010-02-12 20:17:11 +0100},
  date-modified = {2010-02-12 20:17:51 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Ledoit-2001-_A%20Well-Conditioned%20E.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5622},
  rating = {0}
}
@article{Wagenmakers:2006p7180,
  author = {Eric-Jan Wagenmakers and Peter Gr{\"u}nwald},
  journal = {Psychol Sci},
  title = {A Bayesian perspective on hypothesis testing: a comment on Killeen (2005)},
  affiliation = {Department of Psychology, University of Amsterdam, Amsterdam, The Netherlands. ewagenmakers@fmg.uva.nl},
  number = {7},
  pages = {641-2; author reply 643--4},
  volume = {17},
  year = {2006},
  month = {Jul},
  language = {eng},
  keywords = {Bayes Theorem, Humans, Data Interpretation: Statistical},
  date-added = {2010-03-06 20:32:40 +0100},
  date-modified = {2010-07-29 19:46:15 +0200},
  doi = {10.1111/j.1467-9280.2006.01757.x},
  pii = {PSCI1757},
  pmid = {16866752},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Wagenmakers-2006-Psychol%20Sci_A%20Bayesian%20perspecti.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7180},
  rating = {0}
}
@article{Kipman:1999p1333,
  author = {A Kipman and P Gorwood and M C Mouren-Sim{\'e}oni and J Ad{\`e}s},
  journal = {Eur Psychiatry},
  title = {Genetic factors in anorexia nervosa},
  abstract = {Anorexia nervosa is a severe and complex disorder with incompletely known vulnerability factors. It is generally recognized that anorexia nervosa is a familial disorder, but the majority of twin studies have shown that the concordance rate for monozygotic twins is higher (on average 44%) than for dizygotic twins (on average 12.5%). This difference in concordance rates shows that genetic factors, more than common familial environment, may explain why the 'anorexia nervosa' phenotype runs in families. In order to estimate the heritability in the broad sense of anorexia nervosa according to published familial and twin studies, we first assessed the intrapair correlation between monozygotic and dizygotic twins, and secondly calculated the deviation threshold of relatives of affected probands from the relative mean. In this review, we obtained an estimation of the heritability at 0.72 according to all published controlled familial studies (six references quoted in MEDLINE(R)), and 0.71 for all published twin studies (59 references quoted in MEDLINE(R)). This estimation is close to the ones previously proposed, between 0. 5 and 0.8. Familial and twin studies may also help to define the boundaries of the phenotype, shedding light on the complex relationship between anorexia nervosa on the one hand, and bulimia nervosa, mood disorders, and alcoholism on the other. Demonstrating the importance of genetic factors in anorexia nervosa, and more specifically for anorexia of the restrictive type, requires not only prospective and adoption studies (which are still lacking), but also genetic polymorphisms analyses, which began very recently.},
  affiliation = {Hospital Robert Debr{\'e}, Service de psychopathologie de l'enfant, Paris, France.},
  number = {4},
  pages = {189--98},
  volume = {14},
  year = {1999},
  month = {Jul},
  language = {eng},
  keywords = {Models: Genetic, Humans, Anorexia Nervosa, Twins},
  date-added = {2010-01-07 11:37:19 +0100},
  date-modified = {2010-01-07 11:37:19 +0100},
  pii = {S092493389980741X},
  pmid = {10572347},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Kipman-1999-Eur%20Psychiatry_Genetic%20factors%20in%20a.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1333},
  rating = {0}
}
@article{Ferguson:2009p4197,
  author = {Christopher J Ferguson and Claudia San Miguel and Richard D Hartley},
  journal = {J Pediatr},
  title = {A multivariate analysis of youth violence and aggression: the influence of family, peers, depression, and media violence},
  abstract = {OBJECTIVE: To examine the multivariate nature of risk factors for youth violence including delinquent peer associations, exposure to domestic violence in the home, family conflict, neighborhood stress, antisocial personality traits, depression level, and exposure to television and video game violence. STUDY DESIGN: A population of 603 predominantly Hispanic children (ages 10-14 years) and their parents or guardians responded to multiple behavioral measures. Outcomes included aggression and rule-breaking behavior on the Child Behavior Checklist (CBCL), as well as violent and nonviolent criminal activity and bullying behavior. RESULTS: Delinquent peer influences, antisocial personality traits, depression, and parents/guardians who use psychological abuse in intimate relationships were consistent risk factors for youth violence and aggression. Neighborhood quality, parental use of domestic violence in intimate relationships, and exposure to violent television or video games were not predictive of youth violence and aggression. CONCLUSION: Childhood depression, delinquent peer association, and parental use of psychological abuse may be particularly fruitful avenues for future prevention or intervention efforts.},
  affiliation = {Texas A{\&}M International University, Laredo, TX 78045, USA. CJFerguson1111@aol.com},
  number = {6},
  pages = {904--908.e3},
  volume = {155},
  year = {2009},
  month = {Dec},
  language = {eng},
  keywords = {Social Environment, Multivariate Analysis, Antisocial Personality Disorder, Aggression, Cohort Studies, Depressive Disorder, Male, Mass Media, Risk Factors, Female, Violence, Humans, Adolescent, Family Relations, Child, Peer Group, Hispanic Americans},
  date-added = {2010-01-21 08:00:00 +0100},
  date-modified = {2010-01-21 08:00:00 +0100},
  doi = {10.1016/j.jpeds.2009.06.021},
  pii = {S0022-3476(09)00576-9},
  pmid = {19683724},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4197},
  rating = {0}
}
@article{Vandenbroucke:2009p9315,
  author = {Jan P Vandenbroucke},
  journal = {Journal of Clinical Epidemiology},
  title = {STREGA, STROBE, STARD, SQUIRE, MOOSE, PRISMA, GNOSIS, TREND, ORION, COREQ, QUOROM, REMARK... and CONSORT: for whom does the guideline toll?},
  affiliation = {Department of Clinical Epidemiology, Leiden University Medical Centre, Leiden, The Netherlands. j.p.vandenbroucke@lumc.nl},
  number = {6},
  pages = {594--6},
  volume = {62},
  year = {2009},
  month = {Jun},
  language = {eng},
  keywords = {Periodicals as Topic, Data Interpretation: Statistical, Epidemiologic Studies, Editorial Policies, Guidelines as Topic, Abbreviations as Topic, Publishing, Humans},
  date-added = {2010-03-22 13:42:44 +0100},
  date-modified = {2010-03-22 13:42:44 +0100},
  doi = {10.1016/j.jclinepi.2008.12.003},
  pii = {S0895-4356(08)00354-5},
  pmid = {19181482},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Vandenbroucke-2009-Journal%20of%20Clinical%20Epidemiology_STREGA%20STROBE%20STAR.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p9315},
  rating = {0}
}
@article{Foster:2008p1700,
  author = {E Michael Foster and Ariel Kalil},
  journal = {Dev Psychol},
  title = {New methods for new questions: obstacles and opportunities},
  abstract = {Two forces motivate this special section, "New Methods for New Questions in Developmental Psychology." First are recent developments in social science methodology and the increasing availability of those methods in common software packages. Second, at the same time psychologists' understanding of developmental phenomena has continued to grow. At their best, these developments in theory and methods work in tandem, fueling each other. Newer methods make it possible for scientists to better test their ideas; better ideas lead methodologists to techniques that better reflect, capture, and quantify the underlying processes. The articles in this special section represent a sampling of these new methods and new questions. The authors describe common themes in these articles and identify barriers to future progress, such as the lack of data sharing by and analytical training for developmentalists.},
  affiliation = {Department of Maternal and Child Health, School of Public Health, University of North Carolina, Chapel Hill, NC 27599-7445, USA. emfoster@unc.edu},
  number = {2},
  pages = {301--4},
  volume = {44},
  year = {2008},
  month = {Mar},
  language = {eng},
  keywords = {Child, Psychometrics, Forecasting, Research, Software, Child Psychology, Humans, Mathematical Computing, Social Sciences, Data Interpretation: Statistical, Computer Simulation},
  date-added = {2010-01-09 19:08:22 +0100},
  date-modified = {2010-01-09 19:08:22 +0100},
  doi = {10.1037/0012-1649.44.2.301},
  pii = {2008-02379-001},
  pmid = {18331123},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Foster-2008-Dev%20Psychol_New%20methods%20for%20new.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1700},
  rating = {0}
}
@article{Woods:2009p490,
  author = {Carol M Woods},
  journal = {Multivariate Behavioral Research},
  title = {Evaluation of MIMIC-Model Methods for DIF Testing With Comparison to Two-
Group Analysis},
  abstract = {Differential item functioning (DIF) occurs when an item on a test or question- naire has different measurement properties for 1 group of people versus another, irrespective of mean differences on the construct. This study focuses on the use of multiple-indicator multiple-cause (MIMIC) structural equation models for DIF testing, parameterized as item response models. The accuracy of these methods, and the sample size requirements, are not well established. This study examines the accuracy of MIMIC methods for DIF testing when the focal group is small and compares results with those obtained using 2-group item response theory (IRT). Results support the utility of the MIMIC approach. With small focal- group samples, tests of uniform DIF with binary or 5-category ordinal responses were more accurate with MIMIC models than 2-group IRT. Recommendations are offered for the application of MIMIC methods for DIF testing.},
  pages = {1--27},
  volume = {44},
  year = {2009},
  date-added = {2010-01-03 12:50:50 +0100},
  date-modified = {2010-01-03 12:52:32 +0100},
  doi = {10.1080/00273170802620121},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Woods-2009-Multivariate%20Behavioral%20Research_Evaluation%20of%20MIMIC.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p490},
  rating = {0}
}
@article{Zhang:2010p10035,
  author = {Zhiwu Zhang and Elhan Ersoz and Chao-Qiang Lai and Rory J Todhunter and Hemant K Tiwari and Michael A Gore and Peter J Bradbury and Jianming Yu and Donna K Arnett and Jose M Ordovas and Edward S Buckler},
  journal = {Nat Genet},
  title = {Mixed linear model approach adapted for genome-wide association studies},
  abstract = {Mixed linear model (MLM) methods have proven useful in controlling for population structure and relatedness within genome-wide association studies. However, MLM-based methods can be computationally challenging for large datasets. We report a compression approach, called 'compressed MLM', that decreases the effective sample size of such datasets by clustering individuals into groups. We also present a complementary approach, 'population parameters previously determined' (P3D), that eliminates the need to re-compute variance components. We applied these two methods both independently and combined in selected genetic association datasets from human, dog and maize. The joint implementation of these two methods markedly reduced computing time and either maintained or improved statistical power. We used simulations to demonstrate the usefulness in controlling for substructure in genetic association datasets for a range of species and genetic architectures. We have made these methods available within an implementation of the software program TASSEL.},
  affiliation = {Institute for Genomic Diversity, Cornell University, Ithaca, New York, USA.},
  number = {4},
  pages = {355--60},
  volume = {42},
  year = {2010},
  month = {Apr},
  language = {eng},
  date-added = {2010-03-31 20:04:19 +0200},
  date-modified = {2010-03-31 20:04:19 +0200},
  doi = {10.1038/ng.546},
  pii = {ng.546},
  pmid = {20208535},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Zhang-2010-Nat%20Genet_Mixed%20linear%20model%20a.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p10035},
  read = {Yes},
  rating = {0}
}
@article{Smit:2006p5354,
  author = {J Smit and C E van den Berg and L-G Bekker and S Seedat and D J Stein},
  journal = {Afr Health Sci},
  title = {Translation and cross-cultural adaptation of a mental health battery in an African setting},
  abstract = {BACKGROUND: Standardised measuring instruments are increasingly used in psychiatric research cross-culturally. These instruments are considered to be culturally equivalent when all forms of biases, or social norms specific to the culture of origin, have been removed. OBJECTIVES: To describe the qualitative process of selection, translation and cultural adaptation of a mental health battery for use in a Xhosa-speaking community that is, as far as possible, 'culture-free' or equivalent. METHOD: Informal discussions were held with key members in the community to determine what would be considered as appropriate for the community in respect of psychiatric screening instruments. Existing rating-scales for depression, alcohol abuse and posttraumatic stress disorder that would meet these criteria were identified and then translated from English into Xhosa. Cultural equivalence was achieved by combining methods of back-translation, committee consensus approach and decentering. Discussions during the committee consensus meetings were recorded and categorized into themes. Two themes emerged: (1) issues related to the attainment of semantic equivalence and (2) broader problems inherent in cross-cultural research. RESULTS: Issues related to individual questionnaires included the use of terms to describe emotional distress cross-culturally. Broader issues related to the translation process itself included the form of language to be used, time-frames, and the use of Likert-scales. It also demonstrated the problems inherent in the categorization of emotions. CONCLUSION: A method of combining a group approach, back-translation, and decentering was effective and efficient in this context for establishing content and semantic equivalence. Cross-cultural adaptation can never completely remove all forms of bias from a research instrument, but such limitations should be acknowledged and openly discussed, rather than hidden or ignored.},
  affiliation = {MRC Unit on Anxiety and Stress Disorders, University of Stellenbosch, Cape Town, South Africa.},
  number = {4},
  pages = {215--22},
  volume = {6},
  year = {2006},
  month = {Dec},
  language = {eng},
  keywords = {Mental Health, Psychiatric Status Rating Scales, Humans, Translating, Research, South Africa, Cross-Cultural Comparison, Acculturation},
  date-added = {2010-02-11 09:11:05 +0100},
  date-modified = {2010-02-11 09:11:05 +0100},
  doi = {10.5555/afhs.2006.6.4.215},
  pmid = {17604510},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5354},
  rating = {0}
}
@article{Smalley:1997p6899,
  author = {S L Smalley},
  journal = {Am J Hum Genet},
  title = {Genetic influences in childhood-onset psychiatric disorders: autism and attention-deficit/hyperactivity disorder},
  affiliation = {Department of Adolescent and Child Psychiatry, UCLA School of Medicine 90024, USA. ssmalley@npih.mednet.ucla.edu},
  number = {6},
  pages = {1276--82},
  volume = {60},
  year = {1997},
  month = {Jun},
  language = {eng},
  keywords = {Family, Child, Autistic Disorder, Humans, Personality Disorders, Infant, Attention Deficit Disorder with Hyperactivity},
  date-added = {2010-03-06 11:25:31 +0100},
  date-modified = {2010-03-06 11:25:31 +0100},
  doi = {10.1086/515485},
  pii = {S0002-9297(07)64217-7},
  pmid = {9199546},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Smalley-1997-Am%20J%20Hum%20Genet_Genetic%20influences%20i.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6899},
  rating = {0}
}
@article{Andrich:2010p12919,
  author = {David Andrich},
  journal = {Psychometrika},
  title = {Sufficiency and conditional estimation of person parameters in the polytomous Rasch model},
  abstract = {Rasch models are characterised by sufficient statistics for all parameters. In the Rasch unidimen- sional model for two ordered categories, the parameterisation of the person and item is symmetrical and it is readily established that the total scores of a person and item are sufficient statistics for their respective parameters. In contrast, in the unidimensional polytomous Rasch model for more than two ordered cate- gories, the parameterisation is not symmetrical. Specifically, each item has a vector of item parameters, one for each category, and each person only one person parameter. In addition, different items can have different numbers of categories and, therefore, different numbers of parameters. The sufficient statistic for the parameters of an item is itself a vector. In estimating the person parameters in presently available software, these sufficient statistics are not used to condition out the item parameters. This paper derives a conditional, pairwise, pseudo-likelihood and constructs estimates of the parameters of any number of persons which are independent of all item parameters and of the maximum scores of all items. It also shows that these estimates are consistent. Although Rasch's original work began with equating tests us- ing test scores, and not with items of a test, the polytomous Rasch model has not been applied in this way. Operationally, this is because the current approaches, in which item parameters are estimated first, cannot handle test data where there may be many scores with zero frequencies. A small simulation study shows that, when using the estimation equations derived in this paper, such a property of the data is no impediment to the application of the model at the level of tests. This opens up the possibility of using the polytomous Rasch model directly in equating test scores.},
  number = {2},
  pages = {292--308},
  volume = {75},
  year = {2010},
  date-added = {2010-06-24 18:02:16 +0200},
  date-modified = {2010-07-11 09:18:13 +0200},
  doi = {10.1007/S11336-010-9154-8},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Andrich-2010-Psychometrika_Sufficiency%20and%20cond-1.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12919},
  rating = {0}
}
@article{Tognazzo:2009p2381,
  author = {Sandro Tognazzo and Bovo Emanuela and Fiore Anna Rita and Guzzinati Stefano and Monetti Daniele and Stocco Cramen Fiorella and Zambon Paola},
  journal = {J Biomed Inform},
  title = {Probabilistic classifiers and automated cancer registration: an exploratory application},
  abstract = {A test of the performance of two probabilistic classifiers (random forests and multinomial logit models) in automatically defining cancer cases has been carried out on 5608 subjects, registered by the Venetian Tumour Registry (RTV) during the years 1987-1996 and manually checked for possible second cancers that occurred during the 1997-1999 period. An eightfold cross-validation was performed to estimate the classification error; 63 predictive variables were entered into the model fitting. The random forest allows to automatically classify 45% of subjects with a classification error lower than 5%, while the corresponding error is 31% for the multilogit model. The performance of the former classifier is appealing, indicating a potential drop of manually checked cases from 1750 to 960 per incidence year with a moderate error rate. This result suggests to refine the approach and extend it to other categories of manually treated cases.},
  affiliation = {Venetian Tumour Registry, Registro Tumori del Veneto, Istituto Oncologico Veneto-IRCCS, 35128 Padua, Italy. sandro.tognazzo@ioveneto.it},
  number = {1},
  pages = {1--10},
  volume = {42},
  year = {2009},
  month = {Feb},
  language = {eng},
  keywords = {Reproducibility of Results, Italy, Logistic Models, Predictive Value of Tests, Pattern Recognition: Automated, Registries, Humans, Neoplasms, Artificial Intelligence, Neoplasms: Second Primary},
  date-added = {2010-01-10 19:31:41 +0100},
  date-modified = {2010-01-10 19:31:41 +0100},
  doi = {10.1016/j.jbi.2008.06.002},
  pii = {S1532-0464(08)00085-3},
  pmid = {18620077},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Tognazzo-2009-J%20Biomed%20Inform_Probabilistic%20classi.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2381},
  rating = {0}
}
@article{Snyder:2008p4650,
  author = {S Snyder},
  title = {Imputation using the linkage disequilibrium method},
  abstract = {Imputation is a method of dealing with missing data points by filling in values. In genetics, imputation generally refers to the substitution of missing SNP values. Missing SNP values commonly cause data to be thrown out, as re- genotyping is limited by financial constraints. Recovery of SNP values can keep costs down and restore power lost due to missing data. The linkage disequilibrium (LD) method imputes the value of missing SNPs based on LD correlation data between missing SNPs and SNPs which have been measured successfully. This approach is easy to implement, is generalizable, has decent accuracy, and is fairly fast. On the other hand, it does not have optimal accuracy, and makes decisions without an explicit statistical confidence value.},
  year = {2008},
  date-added = {2010-01-30 16:06:21 +0100},
  date-modified = {2010-01-30 16:06:46 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Snyder-2008-_Imputation%20using%20the.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4650},
  rating = {0}
}
@article{Medhin:2010p11602,
  author = {Girmay Medhin and Charlotte Hanlon and Michael Dewey and Atalay Alem and Fikru Tesfaye and Zufan Lakew and Bogale Worku and Mesfin Araya and Abdulreshid Abdulahi and Mark Tomlinson and Marcus Hughes and Vikram Patel and Martin Prince},
  journal = {BMC Psychiatry},
  title = {The effect of maternal common mental disorders on infant undernutrition in Butajira, Ethiopia: The P-MaMiE study},
  abstract = {ABSTRACT: BACKGROUND: Although maternal common mental disorder (CMD) appears to be a risk factor for infant undernutrition in South Asian countries, the position in sub-Saharan Africa (SSA) is unclear METHODS: A population-based cohort of 1065 women, in the third trimester of pregnancy, was identified from the demographic surveillance site (DSS) in Butajira, to investigate the effect of maternal CMD on infant undernutrition in a predominantly rural Ethiopian population. Participants were interviewed at recruitment and at two months post-partum. Maternal CMD was measured using the locally validated Self-Reported Questionnaire (score of [greater than or equal to] six indicating high levels of CMD). Infant anthropometry was recorded at six and twelve months of age. Result: The prevalence of CMD was 12% during pregnancy and 5% at the two month postnatal time-point. In bivariate analysis antenatal CMD which had resolved after delivery predicted underweight at twelve months (OR = 1.71; 95% CI: 1.05, 2.50). There were no other statistically significant differences in the prevalence of underweight or stunted infants in mothers with high levels of CMD compared to those with low levels. The associations between CMD and infant nutritional status were not significant after adjusting for pre-specified potential confounders. CONCLUSION: Our negative finding adds to the inconsistent picture emerging from SSA. The association between CMD and infant undernutrition might be modified by study methodology as well as degree of shared parenting among family members, making it difficult to extrapolate across low- and middle-income countries.},
  number = {1},
  pages = {32},
  volume = {10},
  year = {2010},
  month = {Apr},
  language = {ENG},
  date-added = {2010-05-09 21:37:16 +0200},
  date-modified = {2010-05-09 21:37:16 +0200},
  doi = {10.1186/1471-244X-10-32},
  pii = {1471-244X-10-32},
  pmid = {20433695},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Medhin-2010-BMC%20Psychiatry_The%20effect%20of%20matern-1.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11602},
  rating = {0}
}
@article{Brune:2006p6083,
  author = {Camille W Brune and Soo-Jeong Kim and Jeff Salt and Bennett L Leventhal and Catherine Lord and Edwin H Cook},
  journal = {Am J Psychiatry},
  title = {5-HTTLPR Genotype-Specific Phenotype in Children and Adolescents With Autism},
  abstract = {OBJECTIVE: The serotonin transporter gene (SLC6A4) is a strong autism candidate gene because of its association with anxiety, aggression and attention, and the effectiveness of selective serotonin reuptake inhibitors (SSRIs) in treating certain behavioral symptoms. In families with individuals with autism, several reports of biased transmission of both alleles (short, long) at the serotonin transporter gene promotor polymorphism (5-HTTLPR) locus of SLC6A4 now exist. The heterogeneity in these reports may be due to clinical heterogeneity. The authors hypothesized that 5-HTTLPR genotypes would be related to variation in specific symptoms in children with autism. METHOD: The authors explored whether variants of two functional polymorphisms of SLC6A4 (5-HTTLPR, intron 2 variable number tandem repeat [2 VNTR]) were related to behavioral characteristics measured by the Autism Diagnostic Interview-Revised and Autism Diagnostic Observation Schedule. Subjects (N=73, age 3-19 years old) met diagnostic criteria for autistic disorder based on both measures. RESULTS: Evidence of genotype-phenotype interactions on the Autism Diagnostic Interview-Revised was found with the 5-HTTLPR short group of HTTLPR (S/L or S/S genotypes) being rated as more severe on the subdomain "failure to use nonverbal communication to regulate social interaction," and the long group (L/L genotype) being more severe on the subdomain "stereotyped and repetitive motor mannerisms" and on an aggression measure. In contrast, on the Autism Diagnostic Observation Schedule, the long group was associated with greater severity on directed facial expressions and unusual sensory interests. There were no significant relationships between the intron 2 VNTR genotypes and subdomains or domains of symptoms on the Autism Diagnostic Interview-Revised or the Autism Diagnostic Observation Schedule. CONCLUSIONS: These findings provide initial support for genotype-specific phenotypes for 5-HTTLPR in autism based on ratings from the Autism Diagnostic Interview-Revised and Autism Diagnostic Observation Schedule.},
  affiliation = {Institute for Juvenile Research, Department of Psychiatry (M/C 747), University of Illinois at Chicago, 1747 West Roosevelt Rd., Rm. 155, Chicago, IL 60608, USA.},
  number = {12},
  pages = {2148--56},
  volume = {163},
  year = {2006},
  month = {Dec},
  language = {eng},
  keywords = {Phenotype, Tandem Repeat Sequences, Serotonin Plasma Membrane Transport Proteins, Age Factors, Autistic Disorder, Adolescent, Polymorphism: Genetic, Child, Promoter Regions: Genetic, Psychiatric Status Rating Scales, Genotype, Interpersonal Relations, Severity of Illness Index, Humans, Introns, Genetic Heterogeneity, Stereotyped Behavior, Nonverbal Communication, Child: Preschool, Adult},
  date-added = {2010-02-19 17:04:09 +0100},
  date-modified = {2010-02-19 17:04:09 +0100},
  doi = {10.1176/appi.ajp.163.12.2148},
  pii = {163/12/2148},
  pmid = {17151167},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Brune-2006-Am%20J%20Psychiatry_5-HTTLPR%20Genotype-Sp.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6083},
  rating = {0}
}
@article{Ferguson:2002,
  author = {RJ Ferguson and AB Robinson and M Splaine},
  journal = {Qual Life Res},
  title = {Use of the Reliable Change Index to evaluate clinical significance in SF-36 outcomes},
  abstract = {The SF-36 Health Survey is the most widely used self-report measure of functional health. It is commonly used in both randomized controlled trials (RCT) and non-controlled evaluation of medical or other health services. However, determining a clinically significant change in SF-36 outcomes from pre-to-post-intervention, in contrast to statistically significant differences, is often not a focus of medical outcomes research. We propose use of the Reliable Change Index (RCI) in combination with SF-36 norms as one method for researchers, provider groups, and health care policy makers to determine clinically significant healthcare outcomes when the SF-36 is used as a primary measure. The RCI is a statistic that determines the magnitude of change score necessary of a given self-report measure to be considered statistically reliable. The RCI has been used to determine clinically significant change in mental health and behavioral medicine outcomes research, but is not widely applied to medical outcomes research. A usable table of RCIs for the SF-36 has been calculated and is presented. Instruction and a case illustration of how to use the RCI table is also provided. Finally, limitations and cautionary guidelines on using SF-36 norms and the RCI to determine clinically significant outcome are discussed.},
  number = {6},
  pages = {509--516},
  volume = {11},
  year = {2002},
  date-added = {2010-01-03 19:35:29 +0100},
  date-modified = {2010-07-29 19:48:29 +0200},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1023},
  rating = {0}
}
@article{Kennedy:2007p5525,
  author = {Henry Kennedy and Rodney Douglas and Kenneth Knoblauch and Colette Dehay},
  journal = {Novartis Found Symp},
  title = {Self-organization and pattern formation in primate cortical networks},
  abstract = {The primate neocortex is characterized by a highly expanded supragranular layer (SGL). The interareal connectivity of the neurons in the SLG largely determines the cortical hierarchy that constrains information flow through the cortex. Interareal connectivity is made by precise numbers of connections, raising the possibility that the physiology of a target area is dictated by the numbers of connections and hierarchical distance in each of the pathways that it receives. The developmental mechanisms ensuring the precision of these interareal networks is in part determined by (i) the numbers of SGL neurons generated by the OSVZ, a primate-specific germinal zone. Neuron generation rate in the OSVZ is determined by regulation of the G1 phase of the cell-cycle. This regulation is area-specific and is linked to thalamic projections to the OSVZ; (ii) Prolonged pre- and postnatal pruning of connections originating from the SGL when the infant monkey visually explores its environment. Remodelling serves to sharpen initial patterns of connections and establishes the adult hierarchy. These results suggest that primate cortical networks underlying high-level function undergo prolonged self-organization via regressive phenomena in the cortical plate (axon elimination) and progressive phenomena (directed growth of cortical axons).},
  affiliation = {Inserm, U846, 18 Avenue Doyen Lepine, 69500 Bron, France.},
  pages = {178-94 discussion 195-8, 276--81},
  volume = {288},
  year = {2007},
  month = {Jan},
  language = {eng},
  keywords = {Embryo: Mammalian, Neurons, Models: Neurological, Body Patterning, Animals, Cerebral Cortex, Nerve Net, Primates, Neural Pathways, Models: Biological},
  date-added = {2010-02-12 15:23:33 +0100},
  date-modified = {2010-02-12 15:23:33 +0100},
  pmid = {18494259},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Kennedy-2007-Novartis%20Found%20Symp_Self-organization%20an.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5525},
  rating = {0}
}
@article{Guilford:1957p2661,
  author = {J P Guilford},
  title = {louis leon thurstone},
  year = {1957},
  date-added = {2010-01-12 22:54:22 +0100},
  date-modified = {2010-01-12 22:54:55 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Guilford-1957-_louis%20leon%20thurstone.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2661},
  rating = {0}
}
@article{Zhang:2010p7658,
  author = {Dandan Zhang and Lijun Cheng and David W Craig and Margot Redman and Chunyu Liu},
  journal = {Behav Genet},
  title = {Cerebellar telomere length and psychiatric disorders},
  abstract = {We tested whether telomere length is altered in the brains of patients diagnosed with major depression (MD), bipolar disorder (BD) and schizophrenia (SZ) by measuring mean telomere length (mTL) with real-time PCR. The samples are cerebellar gray matter from 46 SZ, 46 BP, and 15 MD patients, and 48 healthy controls. We found no difference in mTL between SZ and controls, BD and controls, MD and controls, or all cases and controls; no correlation between mTL and age was observed, either. This suggests that brain gray matter is unlikely to be related to the telomere length shortening reported in blood of psychiatric patients. White matter deserves further investigation as it has been reported to have a different mTL dynamic from gray matter. Since mTL has been reported to be a heritable quantitative trait, we also carried out genome-wide mapping of genetic factors for mTL, treating mTL as a quantitative trait. No association survived correction of multiple testing for the number of SNPs studied. The previously reported rs2630578 (BICD1) association was not replicated. This suggests that telomere length of cerebellar gray matter is determined by multiple loci with "weak effects."},
  affiliation = {Department of Psychiatry and Behavioral Neuroscience, The University of Chicago, Chicago, IL, 60637, USA.},
  number = {2},
  pages = {250--4},
  volume = {40},
  year = {2010},
  month = {Mar},
  language = {eng},
  date-added = {2010-03-15 23:33:06 +0100},
  date-modified = {2010-07-29 20:09:06 +0200},
  doi = {10.1007/s10519-010-9338-0},
  pmid = {20127402},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Zhang-2010-Behav%20Genet_Cerebellar%20telomere.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7658},
  rating = {0}
}
@article{Retzer:2009p1536,
  author = {J J Retzer and E S Soofi and R Soyer},
  journal = {Computational Statistics},
  title = {Information importance of predictors: Concept, measures, Bayesian inference, and applications},
  abstract = {The importance of predictors is characterized by the extent to which their use reduces uncertainty about predicting the response variable, namely their information importance. The uncertainty associated with a probability distribution is a concave function of the density such that its global maximum is a uniform distribution reflecting the most difficult prediction situation. Shannon entropy is used to operationalize the concept. For nonstochastic predictors, maximum entropy characterization of probability distributions provides measures of information importance. For stochastic predictors, the expected entropy difference gives measures of information importance, which are invariant under one-to-one transformations of the variables. Applications to various data types lead to familiar statistical quantities for various models, yet with the unified interpretation of uncertainty reduction. Bayesian inference procedures for the importance and relative importance of predictors are developed. Three examples show applications to normal regression, contingency table, and logit analyses.},
  affiliation = {Maritz Research, 1815 S. Meyers Road, Suite 600, Oak brook Terrace, IL 60181, USA},
  pages = {2363--2377},
  volume = {53},
  year = {2009},
  date-added = {2010-01-07 16:19:54 +0100},
  date-modified = {2010-07-29 19:24:31 +0200},
  doi = {doi:10.1016/j.csda.2008.03.010},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Retzer-2009-Computational%20Statistics_Information%20importan.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1536},
  rating = {0}
}
@article{SapountziKrepia:2005p14019,
  author = {Despina Sapountzi-Krepia and Vasilios Raftopoulos and Marcos Sgantzos and Evangelia Kotrotsiou and Zoe Roupa-Darivaki and Kalliope Sotiropoulou and Ioanna Ntourou and Alexandra Dimitriadou},
  journal = {Annals of general psychiatry},
  title = {Validation and test-retest reliability of the Royal Free Interview for Spiritual and Religious Beliefs when adapted to a Greek population},
  abstract = {BACKGROUND: The self-report version of the Royal Free Interview for Religious and Spiritual Beliefs has been confirmed as a valid and reliable scale, assessing the manner and nature in which spiritual beliefs are expressed. The aim of the present study was to evaluate the test-retest reliability and psychometric properties of the Greek version of the Royal Free Interview for Religious and Spiritual Beliefs. METHODS: A total of 209 persons (77 men and 132 women) with a mean age of 28.33 +/- 9.44 years participated in the study (test group). We subsequently approached 139 participants of the test group with a mean age of 28.93 +/- 9.60 years, who were asked to complete the Royal Free Questionnaire a second time two weeks later (retest group). RESULTS: The vast majority of participants (58.9%) reported both a religious and a spiritual belief, compared to 52 (25.1%) who told of a religious belief only. The internal consistency of the spiritual scale for the test group proved to be good, as standardized inter-item reliability / Cronbach's alpha was 0.83. Item-total correlations ranged from 0.51 to 0.73. They indicated very good levels of differentiation, thus showing that the questions were appropriate. Internal consistency of the spiritual scale for the retest group proved as good as for the test group. Standardized inter-item reliability / Cronbach's alpha was 0.84. Item-total correlations ranged from 0.52 to 0.75. The Pearson correlation coefficient for the total test-retest score of the spiritual scale was 0.754 (p < 0.001). CONCLUSION: The Greek version of the Royal Free Interview for Religious and Spiritual Beliefs is reliable and thus suitable for use in Greece.},
  affiliation = {Hellenic Centre for Infectious Diseases Control, Athens, Greece. v_raftop@yahoo.gr.},
  number = {1},
  pages = {6},
  volume = {4},
  year = {2005},
  month = {Mar},
  language = {ENG},
  date-added = {2010-08-07 10:09:04 +0200},
  date-modified = {2010-08-07 10:09:04 +0200},
  doi = {10.1186/1744-859X-4-6},
  pii = {1744-859X-4-6},
  pmid = {15845142},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Sapountzi-Krepia-2005-Annals%20of%20general%20psychiatry_Validation%20and%20test.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p14019},
  rating = {0}
}
@article{Levy:2007p1564,
  author = {R Levy and G R Hancock},
  journal = {Multivariate Behavioral Research},
  title = {A Framework of Statistical Tests For Comparing Mean and Covariance Structure Models},
  abstract = {While statistical procedures are well-known for comparing hierarchically related (nested) mean
and covariance structure models, statistical tests for comparing non-hierarchically related (nonnested) models have proven more elusive. Though isolated attempts at statistical tests of non-hierarchically related models have been made, none exists within the commonly-used maximum likelihood estimation framework, thereby compromising these methods' accessibility and general applicability. Building upon general theory developed by Vuong (1989) and techniques for establishing the relation between covariance structure models (Raykov {\&} Penev, 1999), the current work provides a general paradigm for conducting statistical tests on competing mean and covariance structure models. The proposed framework is appropriate for hierarchically related models as well as non-hierarchically related models. In developing the structure of the framework, key aspects of model equivalence, relation, and comparison are unified. An illustration demonstrates its use.},
  year = {2007},
  date-added = {2010-01-07 16:50:33 +0100},
  date-modified = {2010-01-07 16:51:25 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Levy-2007-Multivariate%20Behavioral%20Research_A%20Framework%20of%20Stati.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1564},
  rating = {0}
}
@article{ENCODEProjectConsortium:2007p518,
  author = {ENCODE Project Consortium and Ewan Birney and John A Stamatoyannopoulos and Anindya Dutta and Roderic Guig{\'o} and Thomas R Gingeras and Elliott H Margulies and Zhiping Weng and Michael Snyder and Emmanouil T Dermitzakis and Robert E Thurman and Michael S Kuehn and Christopher M Taylor and Shane Neph and Christoph M Koch and Saurabh Asthana and Ankit Malhotra and Ivan Adzhubei and Jason A Greenbaum and Robert M Andrews and Paul Flicek and Patrick J Boyle and Hua Cao and Nigel P Carter and Gayle K Clelland and Sean Davis and Nathan Day and Pawandeep Dhami and Shane C Dillon and Michael O Dorschner and Heike Fiegler and Paul G Giresi and Jeff Goldy and Michael Hawrylycz and Andrew Haydock and Richard Humbert and Keith D James and Brett E Johnson and Ericka M Johnson and Tristan T Frum and Elizabeth R Rosenzweig and Neerja Karnani and Kirsten Lee and Gregory C Lefebvre and Patrick A Navas and Fidencio Neri and Stephen C J Parker and Peter J Sabo and Richard Sandstrom and Anthony Shafer and David Vetrie and Molly Weaver and Sarah Wilcox and Man Yu and Francis S Collins and Job Dekker and Jason D Lieb and Thomas D Tullius and Gregory E Crawford and Shamil Sunyaev and William S Noble and Ian Dunham and France Denoeud and Alexandre Reymond and Philipp Kapranov and Joel Rozowsky and Deyou Zheng and Robert Castelo and Adam Frankish and Jennifer Harrow and Srinka Ghosh and Albin Sandelin and Ivo L Hofacker and Robert Baertsch and Damian Keefe and Sujit Dike and Jill Cheng and Heather A Hirsch and Edward A Sekinger and Julien Lagarde and Josep F Abril and Atif Shahab and Christoph Flamm and Claudia Fried and J{\"o}rg Hackerm{\"u}ller and Jana Hertel and Manja Lindemeyer and Kristin Missal and Andrea Tanzer and Stefan Washietl and Jan Korbel and Olof Emanuelsson and Jakob S Pedersen and Nancy Holroyd and Ruth Taylor and David Swarbreck and Nicholas Matthews and Mark C Dickson and Daryl J Thomas and Matthew T Weirauch and James Gilbert and Jorg Drenkow and Ian Bell and XiaoDong Zhao and K G Srinivasan and Wing-Kin Sung and Hong Sain Ooi and Kuo Ping Chiu and Sylvain Foissac and Tyler Alioto and Michael Brent and Lior Pachter and Michael L Tress and Alfonso Valencia and Siew Woh Choo and Chiou Yu Choo and Catherine Ucla and Caroline Manzano and Carine Wyss and Evelyn Cheung and Taane G Clark and James B Brown and Madhavan Ganesh and Sandeep Patel and Hari Tammana and Jacqueline Chrast and Charlotte N Henrichsen and Chikatoshi Kai and Jun Kawai and Ugrappa Nagalakshmi and Jiaqian Wu and Zheng Lian and Jin Lian and Peter Newburger and Xueqing Zhang and Peter Bickel and John S Mattick and Piero Carninci and Yoshihide Hayashizaki and Sherman Weissman and Tim Hubbard and Richard M Myers and Jane Rogers and Peter F Stadler and Todd M Lowe and Chia-Lin Wei and Yijun Ruan and Kevin Struhl and Mark Gerstein and Stylianos E Antonarakis and Yutao Fu and Eric D Green and Ula{\c s} Kara{\"o}z and Adam Siepel and James Taylor and Laura A Liefer and Kris A Wetterstrand and Peter J Good and Elise A Feingold and Mark S Guyer and Gregory M Cooper and George Asimenos and Colin N Dewey and Minmei Hou and Sergey Nikolaev and Juan I Montoya-Burgos and Ari L{\"o}ytynoja and Simon Whelan and Fabio Pardi and Tim Massingham and Haiyan Huang and Nancy R Zhang and Ian Holmes and James C Mullikin and Abel Ureta-Vidal and Benedict Paten and Michael Seringhaus and Deanna Church and Kate Rosenbloom and W James Kent and Eric A Stone and NISC Comparative Sequencing Program and Baylor College of Medicine Human Genome Sequencing Center and Washington University Genome Sequencing Center and Broad Institute and Children's Hospital Oakland Research Institute and Serafim Batzoglou and Nick Goldman and Ross C Hardison and David Haussler and Webb Miller and Arend Sidow and Nathan D Trinklein and Zhengdong D Zhang and Leah Barrera and Rhona Stuart and David C King and Adam Ameur and Stefan Enroth and Mark C Bieda and Jonghwan Kim and Akshay A Bhinge and Nan Jiang and Jun Liu and Fei Yao and Vinsensius B Vega and Charlie W H Lee and Patrick Ng and Atif Shahab and Annie Yang and Zarmik Moqtaderi and Zhou Zhu and Xiaoqin Xu and Sharon Squazzo and Matthew J Oberley and David Inman and Michael A Singer and Todd A Richmond and Kyle J Munn and Alvaro Rada-Iglesias and Ola Wallerman and Jan Komorowski and Joanna C Fowler and Phillippe Couttet and Alexander W Bruce and Oliver M Dovey and Peter D Ellis and Cordelia F Langford and David A Nix and Ghia Euskirchen and Stephen Hartman and Alexander E Urban and Peter Kraus and Sara Van Calcar and Nate Heintzman and Tae Hoon Kim and Kun Wang and Chunxu Qu and Gary Hon and Rosa Luna and Christopher K Glass and M Geoff Rosenfeld and Shelley Force Aldred and Sara J Cooper and Anason Halees and Jane M Lin and Hennady P Shulha and Xiaoling Zhang and Mousheng Xu and Jaafar N S Haidar and Yong Yu and Yijun Ruan and Vishwanath R Iyer and Roland D Green and Claes Wadelius and Peggy J Farnham and Bing Ren and Rachel A Harte and Angie S Hinrichs and Heather Trumbower and Hiram Clawson and Jennifer Hillman-Jackson and Ann S Zweig and Kayla Smith and Archana Thakkapallayil and Galt Barber and Robert M Kuhn and Donna Karolchik and Lluis Armengol and Christine P Bird and Paul I W de Bakker and Andrew D Kern and Nuria Lopez-Bigas and Joel D Martin and Barbara E Stranger and Abigail Woodroffe and Eugene Davydov and Antigone Dimas and Eduardo Eyras and Ingileif B Hallgr{\'\i}msd{\'o}ttir and Julian Huppert and Michael C Zody and Gon{\c c}alo R Abecasis and Xavier Estivill and Gerard G Bouffard and Xiaobin Guan and Nancy F Hansen and Jacquelyn R Idol and Valerie V B Maduro and Baishali Maskeri and Jennifer C McDowell and Morgan Park and Pamela J Thomas and Alice C Young and Robert W Blakesley and Donna M Muzny and Erica Sodergren and David A Wheeler and Kim C Worley and Huaiyang Jiang and George M Weinstock and Richard A Gibbs and Tina Graves and Robert Fulton and Elaine R Mardis and Richard K Wilson and Michele Clamp and James Cuff and Sante Gnerre and David B Jaffe and Jean L Chang and Kerstin Lindblad-Toh and Eric S Lander and Maxim Koriabine and Mikhail Nefedov and Kazutoyo Osoegawa and Yuko Yoshinaga and Baoli Zhu and Pieter J de Jong},
  journal = {Nature},
  title = {Identification and analysis of functional elements in 1% of the human genome by the ENCODE pilot project},
  abstract = {We report the generation and analysis of functional data from multiple, diverse experiments performed on a targeted 1% of the human genome as part of the pilot phase of the ENCODE Project. These data have been further integrated and augmented by a number of evolutionary and computational analyses. Together, our results advance the collective knowledge about human genome function in several major areas. First, our studies provide convincing evidence that the genome is pervasively transcribed, such that the majority of its bases can be found in primary transcripts, including non-protein-coding transcripts, and those that extensively overlap one another. Second, systematic examination of transcriptional regulation has yielded new understanding about transcription start sites, including their relationship to specific regulatory sequences and features of chromatin accessibility and histone modification. Third, a more sophisticated view of chromatin structure has emerged, including its inter-relationship with DNA replication and transcriptional regulation. Finally, integration of these new sources of information, in particular with respect to mammalian evolution based on inter- and intra-species sequence comparisons, has yielded new mechanistic and evolutionary insights concerning the functional landscape of the human genome. Together, these studies are defining a path for pursuit of a more comprehensive characterization of human genome function.},
  number = {7146},
  pages = {799--816},
  volume = {447},
  year = {2007},
  month = {Jun},
  language = {eng},
  keywords = {Pilot Projects, Regulatory Sequences: Nucleic Acid, Chromatin Immunoprecipitation, Chromatin, Evolution: Molecular, Histones, Transcription: Genetic, Genomics, Transcription Initiation Site, Protein Binding, Exons, DNA Replication, RNA: Untranslated, Conserved Sequence, Humans, Genome: Human, Genetic Variation, RNA: Messenger, Transcription Factors, Heterozygote},
  date-added = {2010-01-03 13:17:15 +0100},
  date-modified = {2010-01-03 13:17:15 +0100},
  doi = {10.1038/nature05874},
  pmid = {17571346},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p518},
  rating = {0}
}
@article{Martin:2006,
  author = {Ernesto San Martin and Guido del Pino},
  journal = {Applied Psychological Measurement},
  title = {IRT models for ability-based guessing},
  number = {3},
  pages = {183--203},
  volume = {30},
  year = {2006},
  date-added = {2010-01-10 11:33:23 +0100},
  date-modified = {2010-01-10 11:33:25 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Martin-2006-Applied%20Psychological%20Measurement_IRT%20models%20for%20abili.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1938},
  rating = {0}
}
@article{Madden:1996p8012,
  author = {P A Madden and A C Heath and N E Rosenthal and N G Martin},
  journal = {Arch Gen Psychiatry},
  title = {Seasonal changes in mood and behavior. The role of genetic factors},
  abstract = {BACKGROUND: Seasonal rhythms in mood and behavior (seasonality) have been reported to occur in the general population. Seasonal affective disorder, a clinically diagnosed syndrome, is believed to represent the morbid extreme of a spectrum of seasonality. Two types of seasonality have been clinically described: one characterized by a winter pattern and a second by a summer pattern of depressive mood disturbance. METHODS: By using methods of univariate and multivariate genetic analysis, we examined the relative contribution of genetic and environmental factors to the risk of seasonality symptoms that were assessed by a mailed questionnaire of 4639 adult twins from a volunteer-based registry in Australia. RESULTS: Seasonality was associated with a winter rather than a summer pattern of mood and behavioral change. In each behavioral domain (ie, mood, energy, social activity, sleep, appetite, and weight), a significant genetic influence on the reporting of seasonal changes was found. Consistent with the hypothesis of a seasonal syndrome, genetic effects were found to exert a global influence across all behavioral changes, accounting for at least 29% of the variance in seasonality in men and women. CONCLUSIONS: There is a tendency for seasonal changes in mood and behavior to run in families, especially seasonality of the winter type, and this is largely due to a biological predisposition. These findings support continuing efforts to understand the role of seasonality in the development of mood disorders.},
  affiliation = {Department of Psychiatry, Washington University School of Medicine, St Louis, Mo, USA.},
  number = {1},
  pages = {47--55},
  volume = {53},
  year = {1996},
  month = {Jan},
  language = {eng},
  keywords = {Appetite, Seasons, Affect, Body Weight, Middle Aged, Sleep, Adult, Family, Aged, Social Environment, Diseases in Twins, Male, Registries, Humans, Seasonal Affective Disorder, Female, Australia},
  date-added = {2010-03-20 19:35:03 +0100},
  date-modified = {2010-03-20 19:35:06 +0100},
  pmid = {8540777},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Madden-1996-Arch%20Gen%20Psychiatry_Seasonal%20changes%20in.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8012},
  rating = {4}
}
@article{Mayo:2006p1776,
  author = {Matthew S Mayo and Byron J Gajewski and Jeffrey S Morris},
  journal = {Radiat Res},
  title = {Some statistical issues in microarray gene expression data},
  abstract = {In this paper we discuss some of the statistical issues that should be considered when conducting experiments involving microarray gene expression data. We discuss statistical issues related to preprocessing the data as well as the analysis of the data. Analysis of the data is discussed in three contexts: class comparison, class prediction and class discovery. We also review the methods used in two studies that are using microarray gene expression to assess the effect of exposure to radiofrequency (RF) fields on gene expression. Our intent is to provide a guide for radiation researchers when conducting studies involving microarray gene expression data.},
  affiliation = {Department of Preventive Medicine and Public Health, Center for Biostatistics and Advanced Informatics, Kansas Masonic Cancer Research Institute. mmayo@kumc.edu},
  number = {6},
  pages = {745--8},
  volume = {165},
  year = {2006},
  month = {Jun},
  language = {eng},
  keywords = {Oligonucleotide Array Sequence Analysis, Artifacts, Models: Genetic, Gene Expression Profiling, Reproducibility of Results, Quality Control, Data Interpretation: Statistical, Computer Simulation, Models: Statistical, Sensitivity and Specificity},
  date-added = {2010-01-09 21:44:31 +0100},
  date-modified = {2010-01-09 21:44:31 +0100},
  doi = {10.1667/RR3576.1},
  pii = {RR3576},
  pmid = {16802876},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Mayo-2006-Radiat%20Res_Some%20statistical%20iss.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1776},
  rating = {0}
}
@article{Castrogiovanni:1998p9963,
  author = {P Castrogiovanni and S Iapichino and C Pacchierotti and F Pieraccini},
  journal = {Neuropsychobiology},
  title = {Season of birth in psychiatry. A review},
  abstract = {Numerous studies suggest that seasonal birth may play a pathogenic role in the development of mental disorders. A birth excess of 10% during winter and spring has been shown in schizophrenia. The few studies carried out on affective disorders revealed a significant increase of births in the first quarter of the year in bipolar disorders and major depressive disorder. Subjects with seasonal affective disorder show a peak of births in May. Data on personality, eating and 'neurotic' disorders are less consistent. At the moment there are no data in the literature about anxiety disorders.},
  affiliation = {Department of Psychiatry, University of Siena, Italy.},
  number = {4},
  pages = {175--81},
  volume = {37},
  year = {1998},
  month = {Jan},
  language = {eng},
  keywords = {Brain, Prenatal Exposure Delayed Effects, Female, Pregnancy, Mental Disorders, Disease Susceptibility, Environment, Humans, Seasons, Schizophrenia, Mood Disorders, Sexual Behavior, Periodicity, Autistic Disorder, Eating Disorders},
  date-added = {2010-03-31 19:44:01 +0200},
  date-modified = {2010-03-31 19:44:01 +0200},
  pii = {nps37175},
  pmid = {9648124},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p9963},
  rating = {0}
}
@article{Muthen:1983p13986,
  author = {B Muth{\'e}n},
  journal = {Journal of Econometrics},
  title = {Latent variable structural equation modeling with categorical data},
  pages = {43--65},
  volume = {22},
  year = {1983},
  date-added = {2010-07-30 21:36:59 +0200},
  date-modified = {2010-07-30 21:37:50 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Muth%C3%A9n-1983-Journal%20of%20Econometrics_Latent%20variable%20stru.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13986},
  rating = {0}
}
@article{Rhew:2010p8341,
  author = {Isaac C Rhew and Kate Simpson and Melissa Tracy and James Lymp and Elizabeth McCauley and Debby Tsuang and Ann Vander Stoep},
  journal = {Child Adolesc Psychiatr Clin N Am},
  title = {Criterion validity of the Short Mood and Feelings Questionnaire and one- and two-item depression screens in young adolescents},
  abstract = {ABSTRACT: BACKGROUND: The use of short screening questionnaires may be a promising option for identifying children at risk for depression in a community setting. The objective of this study was to assess the validity of the Short Mood and Feelings Questionnaire (SMFQ) and one- and two-item screening instruments for depressive disorders in a school-based sample of young adolescents. METHODS: Participants were 521 sixth-grade students attending public middle schools. Child and parent versions of the SMFQ were administered to evaluate the child's depressive symptoms. The presence of any depressive disorder during the previous month was assessed using the Diagnostic Interview Schedule for Children (DISC) as the criterion standard. First, we assessed the diagnostic accuracy of child, parent, and combined scores of the full 13-item SMFQ by calculating the area under the receiver operating characteristic curve (AUC), sensitivity and specificity. The same approach was then used to evaluate the accuracy of a two-item scale consisting of only depressed mood and anhedonia items, and a single depressed mood item. RESULTS: The combined child + parent SMFQ score showed the highest accuracy (AUC = 0.86). Diagnostic accuracy was lower for child (AUC = 0.73) and parent (AUC = 0.74) SMFQ versions. Corresponding versions of one- and two-item screens had lower AUC estimates, but the combined versions of the brief screens each still showed moderate accuracy. Furthermore, child and combined versions of the two-item screen demonstrated higher sensitivity (although lower specificity) than either the one-item screen or the full SMFQ. CONCLUSIONS: Under conditions where parents accompany children to screening settings (e.g. primary care), use of a child + parent version of the SMFQ is recommended. However, when parents are not available, and the cost of a false positive result is minimal, then a one- or two-item screen may be useful for initial identification of at-risk youth.},
  affiliation = {Social Development Research Group, University of Washington, Seattle, WA, USA. rhew@u.washington.edu.},
  number = {1},
  pages = {8},
  volume = {4},
  year = {2010},
  month = {Jan},
  language = {eng},
  date-added = {2010-03-21 12:41:40 +0100},
  date-modified = {2010-07-29 19:23:03 +0200},
  doi = {10.1186/1753-2000-4-8},
  pii = {1753-2000-4-8},
  pmid = {20181135},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Rhew-2010-Child%20Adolesc%20Psychiatr%20Clin%20N%20Am_Criterion%20validity%20o.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8341},
  rating = {0}
}
@article{RevahLevy:2005p3593,
  author = {A Revah-Levy},
  title = {Evaluation de la d{\'e}pression chez l'adolescent : De la clinique {\`a} la psychom{\'e}trie},
  year = {2005},
  date-added = {2010-01-15 21:22:15 +0100},
  date-modified = {2010-01-15 21:22:45 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Revah-Levy-2005-_Evaluation%20de%20la%20de%CC%81.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3593},
  rating = {0}
}
@article{Jakobowicz:2007p4082,
  author = {E Jakobowicz and C Derquenne},
  journal = {Computational Statistics},
  title = {A modified PLS path modeling algorithm handling reflective categorical variables and a new model building strategy},
  abstract = {Partial least squares (PLS) path modeling has found increased applications in customer satisfaction analysis thanks to its ability to handle complex models. A modified PLS path modeling algorithm together with a model building strategy are introduced and applied to customer satisfaction analysis at the French energy supplier Electricit{\'e} de France. The modified PLS algorithm handles all kinds of scales (categorical or nominal variables) and is well suited when nominal or binary variables are involved. PLS path modeling and structural equation modeling are confirmatory approaches and thus need an initial conceptual model. A two-step model building strategy is presented; the first step is based on Bayesian networks structure learning to build the measurement model and the second step is based on partial correlation and hypothesis tests to build the structural model. Applications to customer satisfaction data are presented.},
  pages = {3666--3678},
  volume = {51},
  year = {2007},
  date-added = {2010-01-19 16:01:04 +0100},
  date-modified = {2010-07-29 19:24:32 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Jakobowicz-2007-Computational%20Statistics_A%20modified%20PLS%20path.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4082},
  rating = {0}
}
@article{Kadota:2003p4937,
  author = {K Kadota and D Tominaga and Y Akiyama and K Takahashi},
  journal = {Chem-Bio Informatics},
  title = {Detecting outlying samples in microarray data: A critical assessment of the effect of outliers on sample classification},
  number = {1},
  pages = {30--45},
  volume = {3},
  year = {2003},
  date-added = {2010-02-03 15:50:31 +0100},
  date-modified = {2010-02-03 15:51:49 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Kadota-2003-Chem-Bio%20Informatics_Detecting%20outlying%20s.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4937},
  rating = {0}
}
@article{Gandek:1998p5878,
  author = {B Gandek and J E Ware and Neil K Aaronson and G Apolone and J B Bjorner and J E Brazier and M Bullinger and S Kaasa and A Leplege and L Prieto and M Sullivan},
  journal = {Journal of Clinical Epidemiology},
  title = {Cross-validation of item selection and scoring for the SF-12 Health Survey in nine countries: results from the IQOLA Project. International Quality of Life Assessment},
  abstract = {Data from general population surveys (n = 1483 to 9151) in nine European countries (Denmark, France, Germany, Italy, the Netherlands, Norway, Spain, Sweden, and the United Kingdom) were analyzed to cross-validate the selection of questionnaire items for the SF-12 Health Survey and scoring algorithms for 12-item physical and mental component summary measures. In each country, multiple regression methods were used to select 12 SF-36 items that best reproduced the physical and mental health summary scores for the SF-36 Health Survey. Summary scores then were estimated with 12 items in three ways: using standard (U.S.-derived) SF-12 items and scoring algorithms; standard items and country-specific scoring; and country-specific sets of 12 items and scoring. Replication of the 36-item summary measures by the 12-item summary measures was then evaluated through comparison of mean scores and the strength of product-moment correlations. Product-moment correlations between SF-36 summary measures and SF-12 summary measures (standard and country-specific) were very high, ranging from 0.94-0.96 and 0.94-0.97 for the physical and mental summary measures, respectively. Mean 36-item summary measures and comparable 12-item summary measures were within 0.0 to 1.5 points (median = 0.5 points) in each country and were comparable across age groups. Because of the high degree of correspondence between summary physical and mental health measures estimated using the SF-12 and SF-36, it appears that the SF-12 will prove to be a practical alternative to the SF-36 in these countries, for purposes of large group comparisons in which the focus is on overall physical and mental health outcomes.},
  affiliation = {Health Assessment Lab at the Health Institute, New England Medical Center, Boston, Massachusetts 02111, USA.},
  number = {11},
  pages = {1171--8},
  volume = {51},
  year = {1998},
  month = {Nov},
  language = {eng},
  keywords = {Questionnaires, Europe, Health Status Indicators, Psychometrics, Quality of Life, Cross-Cultural Comparison, Humans, Reproducibility of Results},
  date-added = {2010-02-17 15:04:17 +0100},
  date-modified = {2010-07-29 20:13:56 +0200},
  pii = {S0895435698001097},
  pmid = {9817135},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Gandek-1998-Journal%20of%20Clinical%20Epidemiology_Cross-validation%20of.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5878},
  rating = {0}
}
@article{Selvin:1958,
  author = {HC Selvin},
  journal = {American Journal of Sociology},
  title = {Durkheim's suicide and the problem of empirical research},
  pages = {607--619},
  volume = {63},
  year = {1958},
  date-added = {2010-01-03 19:36:09 +0100},
  date-modified = {2010-01-03 19:36:10 +0100},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1088},
  rating = {0}
}
@article{Jambu:1978p2714,
  author = {M Jambu},
  journal = {Revue de Statistique Appliqu{\'e}e},
  title = {Caract{\'e}risation des classifications arborescentes {\'e}tablies sur le crit{\`e}re du chi-deux ou de l'information mutuelle},
  number = {2},
  pages = {45--69},
  volume = {26},
  year = {1978},
  date-added = {2010-01-13 13:59:32 +0100},
  date-modified = {2010-01-13 14:00:35 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Jambu-1978-Revue%20de%20Statistique%20Appliqu%C3%A9e_Caract%C3%A9risation%20des.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2714},
  rating = {0}
}
@article{Minassian:2007p6069,
  author = {Arpi Minassian and Martin Paulus and Alan Lincoln and William Perry},
  journal = {J Autism Dev Disord},
  title = {Adults with autism show increased sensitivity to outcomes at low error rates during decision-making},
  abstract = {Decision-making is an important function that can be quantified using a two-choice prediction task. Individuals with Autistic Disorder (AD) often show highly restricted and repetitive behavior that may interfere with adaptive decision-making. We assessed whether AD adults showed repetitive behavior on the choice task that was unaffected by changing task demands, by examining the influence of experimenter-determined error rates on decision-making. Sixteen AD adults and 14 typically developed subjects were administered a two-choice task using three error rate conditions. Although AD subjects showed occurrences of stereotyped responding, their decision-making behavior was strongly affected by changes in task demands, especially when they experienced frequent success. Thus, behavioral paradigms that provide frequent reinforcement may be helpful in modifying decision-making abilities in AD.},
  affiliation = {Department of Psychiatry, University of California, San Diego, 200 West Arbor Drive, Mailcode 8620, San Diego, CA 92103-8620, USA. aminassian@ucsd.edu},
  number = {7},
  pages = {1279--88},
  volume = {37},
  year = {2007},
  month = {Aug},
  language = {eng},
  keywords = {Sex Factors, Male, Wechsler Scales, Female, Diagnostic and Statistical Manual of Mental Disorders, Motivation, Autistic Disorder, Decision Making, Cognition Disorders, Adult, Humans},
  date-added = {2010-02-19 17:03:15 +0100},
  date-modified = {2010-02-19 17:03:15 +0100},
  doi = {10.1007/s10803-006-0278-8},
  pmid = {17080271},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6069},
  rating = {0}
}
@article{Belzeaux:2010p12089,
  author = {Raoul Belzeaux and Christine Formisano-Tr{\'e}ziny and Anderson Loundou and Laurent Boyer and Jean Gabert and Jean-Claude Samuelian and Fran{\c c}ois F{\'e}ron and Jean Naudin and El Ch{\'e}rif Ibrahim},
  journal = {J Psychiatr Res},
  title = {Clinical variations modulate patterns of gene expression and define blood biomarkers in major depression},
  abstract = {The aim of the study is to compare the expression level of candidate genes between patients suffering from a severe major depressive episode (MDE) and controls, and also among patients during MDE evolution. After a comprehensive review of the biological data related to mood disorders, we initiated a hypothesis-driven exploration of candidate mRNAs. Using RT-qPCR, we analyzed peripheral blood mononuclear cells (PBMCs) mRNA obtained from a homogeneous population of 11 patients who suffered from severe melancholic MDE. To assess the evolution of MDE, we analyzed PBMC mRNAs that were collected on Day 1 and 8 weeks later. Data from these patient samples were analyzed in comparison to age- and sex-matched healthy controls. Among 40 candidate genes consistently transcribed in PBMCs, 10 were differentially expressed in at least one comparison. We found that variations of mRNA levels for NRG1, SORT1 and TPH1 were interesting state-dependent biological markers of the disease. We also observed that variations in other mRNA expression were associated with treatment efficacy or clinical improvement (CREB1, HDAC5, HSPA2, HTR1B, HTR2A, and SLC6A4/5HTT). Significantly, 5HTT exhibited a strong correlation with clinical score evolution. We also found a state-independent marker, IL10. Moreover, the analysis of 2 separate MDEs concerning a same patient revealed comparable results for the expression of CREB1, HSPA2, HTR1B, NRG1 and TPH1. Overall, our results indicate that PBMCs obtained at different time points during MDE progression represent a promising avenue to discover biological markers for depression.},
  affiliation = {NICN-CNRS UMR 6184, Facult{\'e} de M{\'e}decine Nord-IFR Jean Roche, 51 Bd Pierre Dramard, 13344 Marseille Cedex 15, France; SHU Psychiatrie adulte Solaris, H{\^o}pital Sainte Marguerite, Assistance Publique -H{\^o}pitaux de Marseille, Marseille, France.},
  pages = {},
  year = {2010},
  month = {May},
  language = {ENG},
  date-added = {2010-05-24 12:36:43 +0200},
  date-modified = {2010-05-24 12:36:49 +0200},
  doi = {10.1016/j.jpsychires.2010.04.011},
  pii = {S0022-3956(10)00121-4},
  pmid = {20471034},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Belzeaux-2010-J%20Psychiatr%20Res_Clinical%20variations.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12089},
  rating = {4}
}
@article{Clayton:2008p380,
  author = {David Clayton},
  journal = {Biostatistics},
  title = {Testing for association on the X chromosome},
  abstract = {The problem of testing for genotype-phenotype association with loci on the X chromosome in mixed-sex samples has received surprisingly little attention. A simple test can be constructed by counting alleles, with males contributing a single allele and females 2. This approach does assume not only Hardy-Weinberg equilibrium in the population from which the study subjects are sampled but also, perhaps, an unrealistic alternative hypothesis. This paper proposes 1 and 2 degree-of-freedom tests for association which do not assume Hardy-Weinberg equilibrium and which treat males as homozygous females. The proposed method remains valid when phenotype varies between sexes, provided the allele frequency does not, and avoids the loss of power resulting from stratification by sex in such circumstances.},
  affiliation = {Cambridge Institute for Medical Research, University of Cambridge, Wellcome Trust/MRC Building, Addenbrookes's Hospital, Cambridge, UK. david.clayton@cimr.cam.ac.uk},
  number = {4},
  pages = {593--600},
  volume = {9},
  year = {2008},
  month = {Oct},
  language = {eng},
  keywords = {Male, Humans, Phenotype, Genetic Diseases: X-Linked, Female, Genotype, X Chromosome Inactivation, Chromosomes: Human: X, Models: Genetic, Polymorphism: Genetic, Genome-Wide Association Study, Gene Frequency, Algorithms, Models: Statistical, Genes: X-Linked, Sex Factors},
  date-added = {2010-01-03 11:50:16 +0100},
  date-modified = {2010-01-03 11:50:16 +0100},
  doi = {10.1093/biostatistics/kxn007},
  pii = {kxn007},
  pmid = {18441336},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Clayton-2008-Biostatistics_Testing%20for%20associat.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p380},
  read = {Yes},
  rating = {0}
}
@article{Verhelst:1993,
  author = {N D Verhelst and C A W Glas},
  journal = {Psychometrika},
  title = {A dynamic generalization of the Rasch model},
  pages = {395--415},
  volume = {58},
  year = {1993},
  date-added = {2010-01-10 11:33:18 +0100},
  date-modified = {2010-01-10 11:33:25 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Verhelst-1993-Psychometrika_A%20dynamic%20generaliza.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2040},
  read = {Yes},
  rating = {0}
}
@article{Monahan:2007p3347,
  author = {P O Monahan and T E Stump and H Finch and R K Hambleton},
  journal = {Applied Psychological Measurement},
  title = {Bias of Exploratory and Cross-Validated DETECT Index Under Unidimensionality},
  abstract = {DETECT is a nonparametric ``full'' dimensionality assessment procedure that clusters dichotomously scored items into dimensions and provides a DETECT index of magnitude of multidimensionality. Four factors (test length, sample size, item response theory [IRT] model, and DETECT index) were manipulated in a Monte Carlo study of bias, standard error, and root mean square error (RMSE) under the condition of unidimensionality. Bias, standard error, and RMSE of both DETECT indices increased as test length and sample size decreased. Results suggest that the cross-validated index should always be preferred over the exploratory index, even for 100 examinees and five items. Bias, standard error, and RMSE may be problematic for both indices under certain conditions of small samples or short tests. A Monte Carlo procedure could be built into DETECT to estimate and adjust for potential bias.},
  number = {6},
  pages = {483--503},
  volume = {31},
  year = {2007},
  date-added = {2010-01-15 12:23:17 +0100},
  date-modified = {2010-01-15 12:34:40 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Monahan-2007-Applied%20Psychological%20Measurement_Bias%20of%20Exploratory.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3347},
  rating = {0}
}
@article{Mislevy:1997p13754,
  author = {R J Mislevy and R G Almond},
  title = {Graphical models and computerized adaptive testing},
  year = {1997},
  date-added = {2010-07-24 12:46:09 +0200},
  date-modified = {2010-07-24 12:46:58 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Mislevy-1997-_Graphical%20models%20and.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13754},
  rating = {0}
}
@article{Bolshakova:2005p3589,
  author = {N Bolshakova and P Cunningham},
  title = {cluML: a markup language for clustering and cluster validity assessment of microarray data},
  abstract = {cluML, a free, open, XML-based format, is a new markup language for microarray data clustering and cluster validity assessment. This format has been designed to address some of the limitations observed in traditional formats, such as inability to store multiple clustering (including biclustering) and validation results within a dataset. The approach described performs an effective tool to support biomedical knowledge representation in gene expression data analysis. Even though cluML was developed for DNA microarray analysis applications, it may be effectively used for the representation of clustering and validation of other biomedical and physical data with no limitations.},
  affiliation = {Department of Computer Science, Trinity College Dublin, Ireland},
  year = {2005},
  date-added = {2010-01-15 21:15:48 +0100},
  date-modified = {2010-01-15 21:16:39 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Bolshakova-2005-_cluML%20a%20markup%20lang.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3589},
  rating = {0}
}
@article{Schunemann:2010p8324,
  author = {Holger J Schunemann and Francesca Sperati and Maddalena Barba and Nancy Santesso and Camilla Melegari and Elie A Akl and Gordon Guyatt and Paola Muti},
  journal = {Health Qual Life Outcomes},
  title = {An instrument to assess quality of life in relation to nutrition: item generation, item reduction and initial validation},
  abstract = {ABSTRACT: BACKGROUND: It is arguable that modification of diet, given its potential for positive health outcomes, should be widely advocated and adopted. However, food intake, as a basic human need, and its modification may be accompanied by sensations of both pleasure and despondency and may consequently affect to quality of life (QoL). Thus, the feasibility and success of dietary changes will depend, at least partly, on whether potential negative influences on QoL can be avoided. This is of particular importance in the context of dietary intervention studies and in the development of new food products to improve health and well being. Instruments to measure the impact of nutrition on quality of life in the general population, however, are few and far between. Therefore, the aim of this project was to develop an instrument for measuring QoL related to nutrition in the general population. Methods and results: We recruited participants from the general population and followed standard methodology for quality of life instrument development (identification of population, item selection, n = 24; item reduction, n = 81; item presentation, n = 12; pretesting of questionnaire and initial validation, n = 2576; construct validation n = 128; and test-retest reliability n = 20). Of 187 initial items, 29 were selected for final presentation. Factor analysis revealed an instrument with 5 domains. The instrument demonstrated good cross-sectional divergent and convergent construct validity when correlated with scores of the 8 domains of the SF-36 (ranging from -0.078 to 0.562, 19 out of 40 tested correlations were statistically significant and 24 correlations were predicted correctly) and good test-retest reliability (intra-class correlation coefficients from 0.71 for symptoms to 0.90). CONCLUSIONS: We developed and validated an instrument with 29 items across 5 domains to assess quality of life related to nutrition and other aspects of food intake. The instrument demonstrated good face and construct validity as well as good reliability. Future work will focus on the evaluation of longitudinal construct validity and responsiveness.},
  number = {1},
  pages = {26},
  volume = {8},
  year = {2010},
  month = {Mar},
  language = {ENG},
  date-added = {2010-03-21 12:26:25 +0100},
  date-modified = {2010-03-21 12:26:30 +0100},
  doi = {10.1186/1477-7525-8-26},
  pii = {1477-7525-8-26},
  pmid = {20222983},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Schunemann-2010-Health%20and%20Quality%20of%20Life%20Outcomes_An%20instrument%20to%20ass-1.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8324},
  rating = {4}
}
@article{Chen:2005p4737,
  author = {N Chen and N C Marques},
  title = {An Extension of Self-Organizing Maps to Categorical Data},
  abstract = {Self-organizingmaps(SOM)havebeenrecognizedasapowerfultool in data exploratoration, especially for the tasks of clustering on high dimensional data. However, clustering on categorical data is still a challenge for SOM. This paper aims to extend standard SOM to handle feature values of categorical type. A batch SOM algorithm (NCSOM) is presented concerning the dissimilarity mea- sure and update method of map evolution for both numeric and categorical fea- tures simultaneously.},
  year = {2005},
  date-added = {2010-01-30 16:23:12 +0100},
  date-modified = {2010-01-30 16:23:39 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Chen-2005-_An%20Extension%20of%20Self.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4737},
  rating = {0}
}
@article{Pearl:2009p4089,
  author = {J Pearl},
  journal = {Statistics Surveys},
  title = {Causal inference in statistics: An overview},
  abstract = {Thisreviewpresentsempiricalresearcherswithrecentadvances in causal inference, and stresses the paradigmatic shifts that must be un- dertaken in moving from traditional statistical analysis to causal analysis of multivariate data. Special emphasis is placed on the assumptions that un- derly all causal inferences, the languages used in formulating those assump- tions, the conditional nature of all causal and counterfactual claims, and the methods that have been developed for the assessment of such claims. These advances are illustrated using a general theory of causation based on the Structural Causal Model (SCM) described in Pearl (2000a), which subsumes and unifies other approaches to causation, and provides a coher- ent mathematical foundation for the analysis of causes and counterfactuals. In particular, the paper surveys the development of mathematical tools for inferring (from a combination of data and assumptions) answers to three types of causal queries: (1) queries about the effects of potential interven- tions, (also called ``causal effects'' or ``policy evaluation'') (2) queries about probabilities of counterfactuals, (including assessment of ``regret,'' ``attri- bution'' or ``causes of effects'') and (3) queries about direct and indirect effects (also known as ``mediation''). Finally, the paper defines the formal and conceptual relationships between the structural and potential-outcome frameworks and presents tools for a symbiotic analysis that uses the strong features of both.},
  pages = {96--146},
  volume = {3},
  year = {2009},
  date-added = {2010-01-19 23:02:12 +0100},
  date-modified = {2010-01-19 23:04:45 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Pearl-2009-Statistics%20Surveys_Causal%20inference%20in.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4089},
  rating = {0}
}
@article{Bruce:2009p8346,
  author = {Bonnie Bruce and James F Fries and Debbie Ambrosini and Bharathi Lingala and Barbara Gandek and Matthias Rose and John E Ware},
  journal = {Arthritis Res Ther},
  title = {Better assessment of physical function: item improvement is neglected but essential},
  abstract = {ABSTRACT : INTRODUCTION : Physical function is a key component of patient-reported outcome (PRO) assessment in rheumatology. Modern psychometric methods, such as Item Response Theory (IRT) and Computerized Adaptive Testing, can materially improve measurement precision at the item level. We present the qualitative and quantitative item-evaluation process for developing the Patient Reported Outcomes Measurement Information System (PROMIS) Physical Function item bank. METHODS : The process was stepwise: we searched extensively to identify extant Physical Function items and then classified and selectively reduced the item pool. We evaluated retained items for content, clarity, relevance and comprehension, reading level, and translation ease by experts and patient surveys, focus groups, and cognitive interviews. We then assessed items by using classic test theory and IRT, used confirmatory factor analyses to estimate item parameters, and graded response modeling for parameter estimation. We retained the 20 Legacy (original) Health Assessment Questionnaire Disability Index (HAQ-DI) and the 10 SF-36's PF-10 items for comparison. Subjects were from rheumatoid arthritis, osteoarthritis, and healthy aging cohorts (n = 1,100) and a national Internet sample of 21,133 subjects. RESULTS : We identified 1,860 items. After qualitative and quantitative evaluation, 124 newly developed PROMIS items composed the PROMIS item bank, which included revised Legacy items with good fit that met IRT model assumptions. Results showed that the clearest and best-understood items were simple, in the present tense, and straightforward. Basic tasks (like dressing) were more relevant and important versus complex ones (like dancing). Revised HAQ-DI and PF-10 items with five response options had higher item-information content than did comparable original Legacy items with fewer response options. IRT analyses showed that the Physical Function domain satisfied general criteria for unidimensionality with one-, two-, three-, and four-factor models having comparable model fits. Correlations between factors in the test data sets were > 0.90. CONCLUSIONS : Item improvement must underlie attempts to improve outcome assessment. The clear, personally important and relevant, ability-framed items in the PROMIS Physical Function item bank perform well in PRO assessment. They will benefit from further study and application in a wider variety of rheumatic diseases in diverse clinical groups, including those at the extremes of physical functioning, and in different administration modes.},
  affiliation = {Department of Medicine, Stanford University School of Medicine, 1000 Welch Road, Suite 203, Stanford, CA 94304, USA. bbruce@stanford.edu},
  number = {6},
  pages = {R191},
  volume = {11},
  year = {2009},
  month = {Jan},
  language = {eng},
  date-added = {2010-03-21 12:49:32 +0100},
  date-modified = {2010-03-21 12:49:32 +0100},
  doi = {10.1186/ar2890},
  pii = {ar2890},
  pmid = {20015354},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Bruce-2009-Arthritis%20Res%20Ther_Better%20assessment%20of.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8346},
  rating = {0}
}
@article{Zald:2008p8937,
  author = {David H Zald and Ronald L Cowan and Patrizia Riccardi and Ronald M Baldwin and M Sib Ansari and Rui Li and Evan S Shelby and Clarence E Smith and Maureen McHugo and Robert M Kessler},
  journal = {J Neurosci},
  title = {Midbrain dopamine receptor availability is inversely associated with novelty-seeking traits in humans},
  abstract = {Novelty-seeking personality traits are a major risk factor for the development of drug abuse and other unsafe behaviors. Rodent models of temperament indicate that high novelty responding is associated with decreased inhibitory autoreceptor control of midbrain dopamine neurons. It has been speculated that individual differences in dopamine functioning also underlie the personality trait of novelty seeking in humans. However, differences in the dopamine system of rodents and humans, as well as the methods for assessing novelty responding/seeking across species leave unclear to what extent the animal models inform our understanding of human personality. In the present study we examined the correlation between novelty-seeking traits in humans and D(2)-like (D(2)/D(3)) receptor availability in the substantia nigra/ventral tegmental area. Based on the rodent literature we predicted that novelty seeking would be characterized by lowered levels of D(2)-like (auto)receptor availability in the midbrain. Thirty-four healthy adults (18 men, 16 women) completed the Tridimensional Personality Questionnaire-Novelty-Seeking Scale and PET scanning with the D(2)/D(3) ligand [(18)F]fallypride. Novelty-Seeking personality traits were inversely associated with D(2)-like receptor availability in the ventral midbrain, an effect that remained significant after controlling for age. We speculate that the lower midbrain (auto)receptor availability seen in high novelty seekers leads to accentuated dopaminergic responses to novelty and other conditions that induce dopamine release.},
  affiliation = {Department of Psychology, Vanderbilt University Nashville, Tennessee 37240, USA. david.zald@vanderbilt.edu},
  number = {53},
  pages = {14372--8},
  volume = {28},
  year = {2008},
  month = {Dec},
  language = {eng},
  keywords = {Exploratory Behavior, Receptors: Dopamine D2, Young Adult, Pyrrolidines, Personality Tests, Personality, Male, Mesencephalon, Positron-Emission Tomography, Adult, Adolescent, Statistics as Topic, Magnetic Resonance Imaging, Brain Mapping, Female, Humans},
  date-added = {2010-03-22 13:05:10 +0100},
  date-modified = {2010-07-29 19:52:28 +0200},
  doi = {10.1523/JNEUROSCI.2423-08.2008},
  pii = {28/53/14372},
  pmid = {19118170},
  url = {http://www.jneurosci.org/cgi/content/full/28/53/14372},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Zald-2008-J%20Neurosci_Midbrain%20dopamine%20re.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8937},
  rating = {0}
}
@article{Ayers:2007p12883,
  author = {E Ayers},
  title = {Predicting Performance and Creating Better Student Proficiency Models by Improving Skill Codings},
  abstract = {Interest in end-of-year accountability exams has increased dramatically since the passing of the NCLB law in 2001. This push has impacted educational research in a wide variety of ways, including a strong desire to be able to model student work in order to make conclu- sive statements about what students know and how this relates to how they will perform on end-of-year standardized exams. This thesis will look at using item response theory (IRT) to estimate student proficiency. This estimated proficiency will then be used to build predic- tion models for end-of-year exam scores. Next, methods to improve a skills model will be explored. Models that account for learning over time will then be considered. Finally, I will compare various different approaches to modeling response data.},
  year = {2007},
  date-added = {2010-06-24 13:11:48 +0200},
  date-modified = {2010-06-24 13:12:15 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Ayers-2007-_Predicting%20Performan.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12883},
  read = {Yes},
  rating = {0}
}
@article{Badia:2000p9547,
  author = {X Badia and D Podzamczer and A Casado and C L{\'o}pez-Lavid and M Garc{\'\i}a},
  journal = {AIDS},
  title = {Evaluating changes in health status in HIV-infected patients: Medical Outcomes Study-HIV and Multidimensional Quality of Life-HIV quality of life questionnaires. Spanish MOS-HIV and MQOL-HIV Validation Group},
  abstract = {OBJECTIVE: To compare the sensitivity to change of two HIV-health-related quality of life (HRQoL) questionnaires--the Medical Outcomes Study (MOS-HIV) and Multidimensional Quality of Life (MQOL-HIV) for use in clinical research. METHODS: A sample of 296 HIV-infected patients starting or switching antiretroviral treatment were randomly assigned either the MOS-HIV or MQOL-HIV questionnaires at baseline and after 3 months of treatment. Ceiling and floor effects were evaluated. Sensitivity to change was assessed by comparing the percentage of dimensions with statistically significant pre-post-treatment changes and the effect sizes in those groups of patients who reported improvement and no change in self-report questions (overall, physical, mental and social health status) and clinical characteristics (number of opportunistic infections, number of symptoms, viral load level and CD4+ count). RESULTS: Ceiling effects were found in HRQoL scores at baseline and after 3 months of treatment in Pain (42.3-41.6%), Role Function (73.1-77.6%) and Social Function (60.9-63%) on MOS-HIV subscales, and in Social Support (38.2-37.6%) and Partner Intimacy (38.2-33.7%) on MQOL-HIV. For patients who improved in self-reported and objective clinical indicators of health status, mean percentage of dimensions with statistically significant pre-post-treatment changes was 86.4% on MOS-HIV and 50% on MQOL-HIV, where mean standardized effect size was 0.45 on MOS-HIV and 0.33 on MQOL-HIV for the total of dimensions. CONCLUSIONS: Based on sensitivity to change the results suggest that for 3 months both questionnaires can be used, but the MOS-HIV is more sensitive than the MQOL-HIV for use in clinical research.},
  affiliation = {Catalan Institute of Public Health, University of Barcelona, Spain. xbadia@bell.ub.es},
  number = {10},
  pages = {1439--47},
  volume = {14},
  year = {2000},
  month = {Jul},
  language = {eng},
  keywords = {Female, Time Factors, HIV Infections, Quality of Life, Middle Aged, Adult, Aged, Humans, Sensitivity and Specificity, Questionnaires, Health Status, Male, Outcome Assessment (Health Care), Adolescent},
  date-added = {2010-03-23 20:44:20 +0100},
  date-modified = {2010-07-29 19:12:25 +0200},
  pmid = {10930160},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Badia-2000-AIDS_Evaluating%20changes%20i.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p9547},
  rating = {0}
}
@article{Beatty:2007,
  author = {PC Beatty and GB Willis},
  journal = {Public Opinion Quarterly},
  title = {Research Synthesis: The Practice of Cognitive Interviewing},
  abstract = {Cognitive interviewing has emerged as one of the more prominent methods for identifying and correcting problems with survey questions. We define cognitive interviewing as the administration of draft survey questions while collecting additional verbal information about the survey responses, which is used to evaluate the quality of the response or to help determine whether the question is generating the information that its author intends. But beyond this general categorization, cognitive interviewing potentially includes a variety of activities that may be based on different assumptions about the type of data that are being collected and the role of the interviewer in that process. This synthesis reviews the range of current cognitive interviewing practices, focusing on three considerations: (1) what are the dominant paradigms of cognitive interviewing---what is produced under each, and what are their apparent advantages; (2) what key decisions about cognitive interview study design need to be made once the general approach is selected (e.g., who should be interviewed, how many interviews should be conducted, and how should probes be selected), and what bases exist for making these decisions; and (3) how cognitive interviewing data should be evaluated, and what standards of evidence exist for making questionnaire design decisions based on study findings. In considering these issues, we highlight where standards for best practices are not clearly defined, and suggest broad areas worthy of additional methodological research.},
  year = {2007},
  date-added = {2010-01-03 19:34:18 +0100},
  date-modified = {2010-07-29 19:47:49 +0200},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1009},
  rating = {0}
}
@article{Wang:2008p11367,
  author = {Chenguang Wang and Yun Cheng and Tian Liu and Qin Li and Roger B Fillingim and Margaret R Wallace and Roland Staud and Lee Kaplan and Rongling Wu},
  journal = {Molecular pain},
  title = {A computational model for sex-specific genetic architecture of complex traits in humans: implications for mapping pain sensitivity},
  abstract = {Understanding differences in the genetic architecture of complex traits between the two sexes has significant implications for evolutionary studies and clinical diagnosis. However, our knowledge about sex-specific genetic architecture is limited largely because of a lack of analytical models that can detect and quantify the effects of sex on the complexity of quantitative genetic variation. Here, we derived a statistical model for mapping DNA sequence variants that contribute to sex-specific differences in allele frequencies, linkage disequilibria, and additive and dominance genetic effects due to haplotype diversity. This model allows a genome-wide search for functional haplotypes and the estimation and test of haplotype by sex interactions and sex-specific heritability. The model, validated by simulation studies, was used to detect sex-specific functional haplotypes that encode a pain sensitivity trait in humans. The model could have important implications for mapping complex trait genes and studying the detailed genetic architecture of sex-specific differences.},
  affiliation = {Department of Statistics, University of Florida, Gainesville, FL 32611 USA. cgwang@cog.ufl.edu},
  pages = {13},
  volume = {4},
  year = {2008},
  month = {Jan},
  language = {eng},
  keywords = {Male, Models: Statistical, Genetic Variation, Sex Characteristics, Polymorphism: Single Nucleotide, Quantitative Trait: Heritable, Female, Models: Genetic, Humans, Pain Threshold},
  date-added = {2010-04-26 23:07:43 +0200},
  date-modified = {2010-04-26 23:07:43 +0200},
  doi = {10.1186/1744-8069-4-13},
  pii = {1744-8069-4-13},
  pmid = {18416828},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Wang-2008-Molecular%20pain_A%20computational%20mode.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11367},
  rating = {0}
}
@article{LeCao:2009p2564,
  author = {Kim-Anh L{\^e} Cao and Pascal G P Martin and Christ{\`e}le Robert-Grani{\'e} and Philippe Besse},
  journal = {BMC Bioinformatics},
  title = {Sparse canonical methods for biological data integration: application to a cross-platform study},
  abstract = {BACKGROUND: In the context of systems biology, few sparse approaches have been proposed so far to integrate several data sets. It is however an important and fundamental issue that will be widely encountered in post genomic studies, when simultaneously analyzing transcriptomics, proteomics and metabolomics data using different platforms, so as to understand the mutual interactions between the different data sets. In this high dimensional setting, variable selection is crucial to give interpretable results. We focus on a sparse Partial Least Squares approach (sPLS) to handle two-block data sets, where the relationship between the two types of variables is known to be symmetric. Sparse PLS has been developed either for a regression or a canonical correlation framework and includes a built-in procedure to select variables while integrating data. To illustrate the canonical mode approach, we analyzed the NCI60 data sets, where two different platforms (cDNA and Affymetrix chips) were used to study the transcriptome of sixty cancer cell lines. RESULTS: We compare the results obtained with two other sparse or related canonical correlation approaches: CCA with Elastic Net penalization (CCA-EN) and Co-Inertia Analysis (CIA). The latter does not include a built-in procedure for variable selection and requires a two-step analysis. We stress the lack of statistical criteria to evaluate canonical correlation methods, which makes biological interpretation absolutely necessary to compare the different gene selections. We also propose comprehensive graphical representations of both samples and variables to facilitate the interpretation of the results. CONCLUSION: sPLS and CCA-EN selected highly relevant genes and complementary findings from the two data sets, which enabled a detailed understanding of the molecular characteristics of several groups of cell lines. These two approaches were found to bring similar results, although they highlighted the same phenomenons with a different priority. They outperformed CIA that tended to select redundant information.},
  affiliation = {Station d'Am{\'e}lioration G{\'e}n{\'e}tique des Animaux UR 631, Institut National de Recherche Agronomique, F-31326 Castanet, France. k.lecao@imb.uq.edu.au},
  pages = {34},
  volume = {10},
  year = {2009},
  month = {Jan},
  language = {eng},
  keywords = {Genomics, Computational Biology, Systems Biology, Proteomics, Metabolomics},
  date-added = {2010-01-12 22:21:09 +0100},
  date-modified = {2010-01-12 22:21:09 +0100},
  doi = {10.1186/1471-2105-10-34},
  pii = {1471-2105-10-34},
  pmid = {19171069},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/L%C3%AA%20Cao-2009-BMC%20Bioinformatics_Sparse%20canonical%20met.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2564},
  rating = {0}
}
@article{Preuschoff:2007p10788,
  author = {Kerstin Preuschoff and Peter Bossaerts},
  journal = {Ann N Y Acad Sci},
  title = {Adding prediction risk to the theory of reward learning},
  abstract = {This article analyzes the simple Rescorla-Wagner learning rule from the vantage point of least squares learning theory. In particular, it suggests how measures of risk, such as prediction risk, can be used to adjust the learning constant in reinforcement learning. It argues that prediction risk is most effectively incorporated by scaling the prediction errors. This way, the learning rate needs adjusting only when the covariance between optimal predictions and past (scaled) prediction errors changes. Evidence is discussed that suggests that the dopaminergic system in the (human and nonhuman) primate brain encodes prediction risk, and that prediction errors are indeed scaled with prediction risk (adaptive encoding).},
  affiliation = {Computational and Neural Systems, California Institute of Technology, Pasadena, CA 91125, USA.},
  pages = {135--46},
  volume = {1104},
  year = {2007},
  month = {May},
  language = {eng},
  keywords = {Neurons, Learning, Conditioning: Classical, Least-Squares Analysis, Dopamine, Humans, Brain Mapping, Risk, Reinforcement (Psychology), Association Learning, Reward, Animals, Probability, Brain},
  date-added = {2010-04-10 03:27:14 +0200},
  date-modified = {2010-07-29 19:14:51 +0200},
  doi = {10.1196/annals.1390.005},
  pii = {annals.1390.005},
  pmid = {17344526},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p10788},
  rating = {0}
}
@article{Reise:1993p13800,
  author = {S P Reise and K F Widaman and R H Pugh},
  journal = {Psychological Bulletin},
  title = {Confirmatory factor analysis and item response theory: two approaches for exploring measurement invariance},
  abstract = {This study investigated the utility of confirmatory factor analysis (CFA) and item response theory (IRT) models for testing the comparability of psychological measurements. Both procedures were used to investigate whether mood ratings collected in Minnesota and China were comparable. Several issues were addressed. The first issue was that of establishing a common measurement scale across groups, which involves full or partial measurement invariance of trait indicators. It is shown that using CFA or IRT models, test items that function differentially as trait indicators across groups need not interfere with comparing examinees on the same trait dimension. Second, the issue of model fit was addressed. It is proposed that person-fit statistics be used to judge the practical fit of IRT models. Finally, topics for future research are suggested.},
  affiliation = {Department of Psychology, University of California, Riverside 92521.},
  number = {3},
  pages = {552--66},
  volume = {114},
  year = {1993},
  month = {Nov},
  language = {eng},
  keywords = {Male, Adult, Culture, Humans, Language, Language Tests, China, Female, United States, Psychological Tests},
  date-added = {2010-07-29 12:18:05 +0200},
  date-modified = {2010-07-29 12:18:06 +0200},
  pmid = {8272470},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Reise-1993-Psychological%20Bulletin_Confirmatory%20factor.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13800},
  rating = {0}
}
@article{Abdallah:1998p12913,
  author = {H Abdallah and G Saporta},
  journal = {Revue de Statistique Appliqu{\'e}e},
  title = {Classification d'un ensemble de variables qualitatives},
  number = {4},
  pages = {5--26},
  volume = {46},
  year = {1998},
  date-added = {2010-06-24 17:44:19 +0200},
  date-modified = {2010-06-24 17:45:10 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Abdallah-1998-Revue%20de%20Statistique%20Appliqu%C3%A9e_Classification%20d'un.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12913},
  rating = {0}
}
@article{McKenna:1999p13622,
  author = {S P McKenna and L C Doward and Jordi Alonso and T Kohlmann and M Niero and L Prieto and L W{\'\i}ren},
  journal = {Qual Life Res},
  title = {The QoL-AGHDA: an instrument for the assessment of quality of life in adults with growth hormone deficiency},
  abstract = {Several studies have shown that growth hormone deficiency in adults leads to poor well-being and other clinical consequences, and that these improve when the hormone is replaced. However, the studies employed generic measures of health status that miss important aspects of the patients' experience and that have inadequate reliability and responsiveness. This paper describes the European development and testing of the Quality of Life-Assessment of Growth Hormone Deficiency in Adults (QoL-AGHDA), a condition-specific quality of life measure for use in clinical trials and for the routine monitoring of patients. The instrument was produced in five languages; English, Swedish, Italian, German and Spanish. Each language version is shown to have good reliability, internal consistency and construct validity. The QoL-AGHDA is currently included in an international database monitoring the long-term efficacy and safety of growth hormone replacement therapy and in clinical trials in a number of countries.},
  affiliation = {Galen Research, Manchester, UK.},
  number = {4},
  pages = {373--83},
  volume = {8},
  year = {1999},
  month = {Jun},
  language = {eng},
  keywords = {Translating, Statistics: Nonparametric, Europe, Human Growth Hormone, Questionnaires, Cross-Cultural Comparison, Adult, Male, Quality of Life, Humans, Female, Psychometrics, Reproducibility of Results, Middle Aged},
  date-added = {2010-07-07 21:23:01 +0200},
  date-modified = {2010-07-29 20:19:11 +0200},
  pmid = {10472170},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/McKenna-1999-Qual%20Life%20Res_The%20QoL-AGHDA%20an%20in.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13622},
  rating = {0}
}
@article{Blasberg:2003p8509,
  author = {Ronald G Blasberg and Juri Gelovani Tjuvajev},
  journal = {J Clin Invest},
  title = {Molecular-genetic imaging: current and future perspectives},
  affiliation = {Departments of Neurology and Radiology, Memorial Sloan-Kettering Cancer Center, New York, New York 10021, USA. blasberg@neurol.mskcc.org},
  number = {11},
  pages = {1620--9},
  volume = {111},
  year = {2003},
  month = {Jun},
  language = {eng},
  keywords = {Tumor Suppressor Protein p53, Genes: Reporter, Gene Expression Regulation, Genetic Techniques, Diagnostic Imaging, Animals, Time Factors, Tomography: Emission-Computed, Humans, Neoplasms, Models: Biological, Pyrimidines, Piperazines},
  date-added = {2010-03-21 19:38:23 +0100},
  date-modified = {2010-03-21 19:38:23 +0100},
  doi = {10.1172/JCI18855},
  pmid = {12782662},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Blasberg-2003-J%20Clin%20Invest_Molecular-genetic%20im.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8509},
  rating = {0}
}
@article{Posner:2006p10470,
  author = {Michael I Posner and Brad E Sheese and Yal{\c c}in Odluda{\c s} and YiYuan Tang},
  journal = {Neural Netw},
  title = {Analyzing and shaping human attentional networks},
  abstract = {In this paper we outline a conception of attentional networks arising from imaging studies as connections between activated brain areas carrying out localized mental operations. We consider both the areas of functional activation (nodes) and the structural (DTI) and functional connections (DCM) between them in real time (EEG, frequency analysis) as important tools in analyzing the network. The efficiency of network function involves the time course of activation of nodes and their connectivity to other areas of the network. We outline landmarks in the development of brain networks underlying executive attention from infancy and childhood. We use individual differences in network efficiency to examine genetic alleles that are related to performance. We consider how animal studies might be used to determine the genes that influence network development. Finally we indicate how training may aid in enhancing attentional networks. Our goal is to show the wide range of methods that can be used to suggest and analyze models of network function in the study of attention.},
  affiliation = {Department of Psychology, University of Oregon, Eugene, OR 97403-1227, USA. mposner@uoregon.edu},
  number = {9},
  pages = {1422--9},
  volume = {19},
  year = {2006},
  month = {Nov},
  language = {eng},
  keywords = {Attention, Brain, Diffusion Magnetic Resonance Imaging, Electroencephalography, Dopamine Plasma Membrane Transport Proteins, Brain Mapping, Nerve Net, Magnetic Resonance Imaging, Monoamine Oxidase, Humans, Models: Neurological},
  date-added = {2010-04-07 11:05:57 +0200},
  date-modified = {2010-07-29 19:41:07 +0200},
  doi = {10.1016/j.neunet.2006.08.004},
  pii = {S0893-6080(06)00183-3},
  pmid = {17059879},
  url = {http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6T08-4M5WS18-1&_user=2432700&_coverDate=11%252F30%252F2006&_rdoc=1&_fmt=high&_orig=search&_sort=d&_docanchor=&view=c&_acct=C000057263&_version=1&_urlVersion=0&_userid=2432700&md5=e1aa34b8c68cf188a0077be5d41fdb60},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Posner-2006-Neural%20Netw_Analyzing%20and%20shapin.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p10470},
  rating = {0}
}
@article{Embrechts:2007p3345,
  author = {Mark J Embrechts and Sean Ekins},
  journal = {Drug Metab Dispos},
  title = {Classification of metabolites with kernel-partial least squares (K-PLS)},
  abstract = {Numerous experimental and computational approaches have been developed to predict human drug metabolism. Since databases of human drug metabolism information are widely available, these can be used to train computational algorithms and generate predictive approaches. In turn, they may be used to assist in the identification of possible metabolites from a large number of molecules in drug discovery based on molecular structure alone. In the current study we have used a commercially available database (MetaDrug) and extracted a fraction of the human drug metabolism data. These data were used along with augmented atom descriptors in a predictive machine learning model, kernel-partial least squares (K-PLS). A total of 317 molecules, including parent drugs and their primary and secondary (sequential) metabolites, were used to build these models corresponding to individual metabolism rules, representing the formation of discrete metabolites, e.g., N-dealkylation. Each model was internally validated to assess the capability to classify other molecules that were left out. Using receiver operator curve statistics models for N-dealkylation, O-dealkylation, aromatic hydroxylation, aliphatic hydroxylation, O-glucuronidation, and O-sulfation gave area under the curve values from 0.75 to 0.84 and were able to predict between 61 and 79% active molecules upon leave-one-out testing. This preliminary study indicates that K-PLS and possibly other similar machine learning methods (such as support vector machines) can be applied to predicting human drug metabolite formation in a classification manner. Improvements can be achieved using considerably larger datasets that contain more positive examples for the less frequently occurring metabolite rules, as well as the external evaluation of novel molecules.},
  affiliation = {ACT LLC, 601 Runnymede Ave., Jenkintown, PA 19046, USA. ekinssean@yahoo.com},
  number = {3},
  pages = {325--7},
  volume = {35},
  year = {2007},
  month = {Mar},
  language = {eng},
  keywords = {Biotransformation, Pharmaceutical Preparations, Least-Squares Analysis},
  date-added = {2010-01-15 12:21:18 +0100},
  date-modified = {2010-01-15 12:21:18 +0100},
  doi = {10.1124/dmd.106.013185},
  pii = {dmd.106.013185},
  pmid = {17142559},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Embrechts-2007-Drug%20Metab%20Dispos_Classification%20of%20me.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3345},
  rating = {0}
}
@article{Iverach:2010p8981,
  author = {Lisa Iverach and Susan O'Brian and Mark Jones and Susan Block and Michelle Lincoln and Elisabeth Harrison and Sally Hewat and Ross G Menzies and Ann Packman and Mark Onslow},
  journal = {J Commun Disord},
  title = {The five factor model of personality applied to adults who stutter},
  abstract = {Previous research has not explored the Five Factor Model of personality among adults who stutter. Therefore, the present study investigated the five personality domains of Neuroticism, Extraversion, Openness, Agreeableness and Conscientiousness, as measured by the NEO Five Factor Inventory (NEO-FFI), in a sample of 93 adults seeking speech treatment for stuttering, and compared these scores with normative data from an Australian and a United States sample. Results revealed that NEO-FFI scores for the stuttering group were within the 'average' range for all five personality domains. However, adults who stutter were characterized by significantly higher Neuroticism, and significantly lower Agreeableness and Conscientiousness, than normative samples. No significant differences were found between groups on the dimensions of Extraversion and Openness. These results are discussed with reference to the relationship between personality factors among adults who stutter, their directionality, and implications for predicting treatment outcome. LEARNING OUTCOMES: The reader will be able to: (1) describe the Five Factor Model of personality, including the NEO-FFI personality domains of Extraversion, Neuroticism, Openness, Agreeableness, and Conscientiousness, and (2) discuss differences in NEO-FFI domain scores between adults who stutter and normative samples, and (3) understand the clinical implications of personality profiles in terms of treatment process and outcome for adults who stutter.},
  affiliation = {Australian Stuttering Research Centre, The University of Sydney, PO Box 170, Lidcombe, NSW 1825, Australia.},
  number = {2},
  pages = {120--32},
  volume = {43},
  year = {2010},
  month = {Jan},
  language = {eng},
  date-added = {2010-03-22 13:11:40 +0100},
  date-modified = {2010-03-22 13:11:40 +0100},
  doi = {10.1016/j.jcomdis.2009.12.001},
  pii = {S0021-9924(09)00085-9},
  pmid = {20070974},
  url = {http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6T85-4Y05DJR-1&_user=2432700&_coverDate=04%252F30%252F2010&_rdoc=1&_fmt=high&_orig=search&_sort=d&_docanchor=&view=c&_acct=C000057263&_version=1&_urlVersion=0&_userid=2432700&md5=08374553788c59395ef1cb915506227d},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Iverach-2010-J%20Commun%20Disord_The%20five%20factor%20mode.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8981},
  rating = {0}
}
@article{Furman:2005p1339,
  author = {Lydia Furman},
  journal = {J Child Neurol},
  title = {What is attention-deficit hyperactivity disorder (ADHD)?},
  abstract = {Attention-deficit hyperactivity disorder (ADHD) is described as the most common neurobehavioral condition of childhood. We raise the concern that ADHD is not a disease per se but rather a group of symptoms representing a final common behavioral pathway for a gamut of emotional, psychological, and/or learning problems. Increasing numbers of children, especially boys, are diagnosed with ADHD and treated with stimulant medications according to a simplified approach. Methodical review of the literature, however, raised concerning issues. "Core" ADHD symptoms of inattentiveness, hyperactivity and impulsivity are not unique to ADHD. Rates of "comorbid" psychiatric and learning problems, including depression and anxiety, range from 12 to 60%, with significant symptom overlap with ADHD, difficulties in diagnosis, and evidence-based treatment methods that do not include stimulant medications. No neuropsychologic test result is pathognomic for ADHD, and structural and functional neuroimaging studies have not identified a unique etiology for ADHD. No genetic marker has been consistently identified, and heritability studies are confounded by familial environmental factors. The validity of the Conners' Rating Scale-Revised has been seriously questioned, and parent and teacher "ratings" of school children are frequently discrepant, suggesting that use of subjective informant data via scale or interview does not form an objective basis for diagnosis of ADHD. Empiric diagnostic trials of stimulant medication that produce a behavioral response have been shown not to distinguish between children with and without "ADHD." In summary, the working dogma that ADHD is a disease or neurobehavioral condition does not at this time hold up to scrutiny of evidence. Thorough evaluation of symptomatic children should be individualized, and include assessment of educational, psychologic, psychiatric, and family needs.},
  affiliation = {Department of Pediatrics, Case Western Reserve University School of Medicine, Rainbow Babies and Children's Hospital, Cleveland, OH 44106, USA. lmfurman@adelphia.net},
  number = {12},
  pages = {994--1002},
  volume = {20},
  year = {2005},
  month = {Dec},
  language = {eng},
  keywords = {Brain, Humans, Diagnosis: Differential, Magnetic Resonance Imaging, Affective Symptoms, Male, Comorbidity, Family Health, Terminology as Topic, Female, Attention Deficit Disorder with Hyperactivity, Depression, Learning Disorders, Anxiety, Impulse Control Disorders, Child, Central Nervous System Stimulants, Genetic Markers},
  date-added = {2010-01-07 11:41:16 +0100},
  date-modified = {2010-01-07 11:41:16 +0100},
  pmid = {16417850},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1339},
  rating = {0}
}
@article{Meyer:2009p5924,
  author = {Klemens B Meyer and Kimberly A Clayton},
  journal = {Methods Mol Biol},
  title = {Measurement and analysis of patient-reported outcomes},
  abstract = {The study of patient-reported outcomes, now common in clinical research, had its origins in social and scientific developments during the latter 20th century. Patient-reported outcomes comprise functional and health status, health-related quality of life, and quality of life. The terms overlap and are used inconsistently, and these reports of experience should be distinguished from expressions of preference regarding health states. Regulatory standards from the United States and the European Union provide some guidance regarding reporting of patient-reported outcomes. The determination that measurement of patient-reported outcomes is important depends in part on the balance between subjective and objective outcomes of the health problem under study. Instrument selection depends to a large extent on practical considerations. A number of instruments can be identified that are frequently used in particular clinical situations. The domain coverage of commonly used generic short forms varies substantially. Individualized measurement of quality of life is possible, but resource intensive. Focus groups are useful, not only for scale development but to confirm the appropriateness of existing instruments. Under classical test theory, validity and reliability are the critical characteristics of tests. Under item response theory, validity remains central, but the focus moves from the reliability of scales to the relative levels of traits in individuals and items' relative difficulty. Plans for clinical studies should include an explicit model of the relationship of patient-reported outcomes to other parameters, as well as definition of the magnitude of difference in patient-reported outcomes that will be considered important. Prevention of missing patient-reported outcome data is particularly important; to a limited extent, a variety of statistical techniques can mitigate the consequences of missing data.},
  affiliation = {Tufts-New England Medical Centre, Boston, USA.},
  pages = {155--69},
  volume = {473},
  year = {2009},
  month = {Jan},
  language = {eng},
  keywords = {Humans, Outcome Assessment (Health Care), Clinical Trials as Topic, Quality of Life, Health Status},
  date-added = {2010-02-18 23:12:23 +0100},
  date-modified = {2010-07-29 19:39:47 +0200},
  pmid = {19160737},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5924},
  rating = {4}
}
@article{Hartman:2007p6975,
  author = {Christie A Hartman and Soo H Rhee and Erik G Willcutt and Bruce F Pennington},
  journal = {J Abnorm Child Psychol},
  title = {Modeling rater disagreement for ADHD: are parents or teachers biased?},
  abstract = {The present study is the first to utilize twin modeling to examine whether parent-teacher disagreement for ADHD ratings is due to parent or teacher bias, or due to raters observing different but valid ADHD behaviors. A joint analysis was conducted with 106 twin pairs, including twins selected for ADHD and control twin pairs. Total ADHD scores were analyzed using multiple rater models that estimate genetic and environmental contributions common to both raters and unique to each rater. Results suggest that 1) disagreement in ADHD ratings is strongly due to parents and teachers observing different ADHD behaviors, some of which is valid and some of which is due to bias, and 2) parents may be more biased than teachers in their ADHD ratings.},
  affiliation = {Department of Psychiatry, University of Colorado at Denver and Health Sciences Center, 4200 East 9th Ave., Box C-268-35, Denver, CO 80262, USA. christie.hartman@colorado.edu},
  number = {4},
  pages = {536--42},
  volume = {35},
  year = {2007},
  month = {Aug},
  language = {eng},
  keywords = {Psychometrics, Faculty, Female, Male, Parents, Phenotype, Attention Deficit Disorder with Hyperactivity, Diseases in Twins, Humans, Child, Adolescent, Social Environment, Reproducibility of Results, Observer Variation, Bias (Epidemiology), Personality Assessment},
  date-added = {2010-03-06 12:26:06 +0100},
  date-modified = {2010-07-29 19:31:18 +0200},
  doi = {10.1007/s10802-007-9110-y},
  pmid = {17333362},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Hartman-2007-J%20Abnorm%20Child%20Psychol_Modeling%20rater%20disag.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6975},
  rating = {0}
}
@article{Daseking:2009p5137,
  author = {M Daseking and M Oldenhage and F Petermann and H-C Waldmann},
  journal = {Gesundheitswesen},
  title = {[Social pediatric screening of developmental status for school entry (SOPESS): validity in the domain of speech and language]},
  abstract = {In addition to general cognitive and motor skills, the social-pediatric screening of developmental status for school entry (SOPESS) provides subtests for assessing speech and language in a differentiated way. In a special validation study, these domains are correlated to coextensive scales of SETK 3-5. The SOPESS features high specificity and results in reliable true negative findings. In addition, a preliminary evaluation of language skills considering migrant background is given. Children with an unsatisfactory status of language competence are treated separately in the SOPESS.},
  affiliation = {Zentrum f{\"u}r Klinische Psychologie und Rehabilitation der Universit{\"a}t Bremen, Bremen. daseking@uni-bremen.de},
  number = {10},
  pages = {663--8},
  volume = {71},
  year = {2009},
  month = {Oct},
  language = {ger},
  keywords = {Language Development Disorders, Pediatrics, School Admission Criteria, Germany, Child, Practice Guidelines as Topic, Mass Screening, Learning Disorders, Humans},
  date-added = {2010-02-05 20:19:43 +0100},
  date-modified = {2010-02-05 20:19:44 +0100},
  doi = {10.1055/s-0029-1239510},
  pmid = {19885767},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5137},
  rating = {0}
}
@book{Ogles:1996,
  author = {BM Ogles and MJ Lambert and KS Masters},
  journal = {Book},
  title = {Assessing outcome in clinical practice},
  year = {1996},
  date-added = {2010-01-03 19:35:29 +0100},
  date-modified = {2010-07-29 19:21:41 +0200},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1020},
  rating = {0}
}
@article{Buckner:2010p6655,
  author = {Julia D Buckner and Jose Silgado and Peter M Lewinsohn},
  journal = {J Psychiatr Res},
  title = {Delineation of differential temporal relations between specific eating and anxiety disorders},
  abstract = {This study examined the temporal sequencing of eating and anxiety disorders to delineate which anxiety disorders increase eating disorder risk and whether individuals with eating disorders are at greater risk for particular anxiety disorders. The sample was drawn from the Oregon Adolescent Depression Project. Temporal relations between specific eating and anxiety disorders were examined after controlling for relevant variables (e.g., mood disorders, other anxiety disorders) over 14years. After excluding those with anorexia nervosa (AN) in adolescence (T1), OCD was the only T1 anxiety disorder to predict AN by age 30 (T4). No T1 anxiety disorder was associated with T4 bulimia nervosa (BN). Although T1 AN did not increase risk of any T4 anxiety disorder, T1 BN appeared to increase risk for social anxiety and panic disorders. Evidence that eating disorders may have differential relations to particular anxiety disorders could inform prevention and treatment efforts.},
  affiliation = {Department of Psychology, Louisiana State University, 236 Audubon Hall, Baton Rouge, LA 70803, USA.},
  pages = {},
  year = {2010},
  month = {Feb},
  language = {ENG},
  date-added = {2010-03-03 20:39:59 +0100},
  date-modified = {2010-07-29 19:35:54 +0200},
  doi = {10.1016/j.jpsychires.2010.01.014},
  pii = {S0022-3956(10)00023-3},
  pmid = {20185151},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Buckner-2010-J%20Psychiatr%20Res_Delineation%20of%20diffe.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6655},
  rating = {0}
}
@article{Schafer:2002p2368,
  author = {J L Schafer and R M Yucel},
  journal = {Journal of Computational and Graphical Statistics},
  title = {Computational Strategies for Multivariate Linear Mixed-Effects Models With Missing Values},
  abstract = {This article presents new computational techniques for multivariate longitudinal or clustered data with missing values. Current methodology for linear mixed-effects models can accommodate imbalance or missing data in a single response variable, but it cannot handle missing values in multiple responses or additional covariates. Applying a multivariate extension of a popular linear mixed-effects model, we create multiple imputations of missing values for subsequent analyses by a straightforward and effective Markov chain Monte Carlo procedure. We also derive and implement a new EM algorithm for parameter estimation which converges more rapidly than traditional EM algorithms because it does not treat the random effects as ``missing data,'' but integrates them out of the likelihood function analytically. These techniques are illustrated on models for adolescent alcohol use in a large school-based prevention trial.},
  number = {2},
  pages = {437--457},
  volume = {11},
  year = {2002},
  date-added = {2010-01-10 13:44:29 +0100},
  date-modified = {2010-01-10 13:45:26 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Schafer-2002-Journal%20of%20Computational%20and%20Graphical%20Statistics_Computational%20Strate.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2368},
  rating = {0}
}
@article{Ritchie:2009p1681,
  author = {Matthew E Ritchie and Benilton S Carvalho and Kurt N Hetrick and Simon Tavar{\'e} and Rafael A Irizarry},
  journal = {Bioinformatics},
  title = {R/Bioconductor software for Illumina's Infinium whole-genome genotyping BeadChips},
  abstract = {Illumina produces a number of microarray-based technologies for human genotyping. An Infinium BeadChip is a two-color platform that types between 10(5) and 10(6) single nucleotide polymorphisms (SNPs) per sample. Despite being widely used, there is a shortage of open source software to process the raw intensities from this platform into genotype calls. To this end, we have developed the R/Bioconductor package crlmm for analyzing BeadChip data. After careful preprocessing, our software applies the CRLMM algorithm to produce genotype calls, confidence scores and other quality metrics at both the SNP and sample levels. We provide access to the raw summary-level intensity data, allowing users to develop their own methods for genotype calling or copy number analysis if they wish. AVAILABILITY AND IMPLEMENTATION: The crlmm Bioconductor package is available from http://www.bioconductor.org. Data packages and documentation are available from http://rafalab.jhsph.edu/software.html.},
  affiliation = {Bioinformatics Division, The Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville Victoria 3052, Australia. mritchie@wehi.edu.au},
  number = {19},
  pages = {2621--3},
  volume = {25},
  year = {2009},
  month = {Oct},
  language = {eng},
  date-added = {2010-01-08 22:28:12 +0100},
  date-modified = {2010-01-08 22:28:12 +0100},
  doi = {10.1093/bioinformatics/btp470},
  pii = {btp470},
  pmid = {19661241},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Ritchie-2009-Bioinformatics_RBioconductor%20softw.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1681},
  rating = {0}
}
@article{Sher:2000p8018,
  author = {L Sher},
  journal = {Med Hypotheses},
  title = {The role of genetic factors in the etiology of seasonality and seasonal affective disorder: an evolutionary approach},
  abstract = {The degree to which seasonal changes affect mood, energy, sleep, appetite, food preference, or the wish to socialize with other people has been called seasonality. Seasonal affective disorder (SAD), a condition where depressions in fall and winter alternate with non-depressed periods in spring and summer, is the most marked form of seasonality. Several lines of evidence suggest that genetic factors play an important role in the etiology of seasonality and SAD. Millions of years of evolution and adaptation have optimized human biochemical and physiological systems for function and survival under equatorial environmental conditions. Modern humans began their migration out of Africa only about 150 000 years ago. Little change in our 'equatorial' systems might have been expected over this relatively short evolutionary time-span. The author suggests that a genetic susceptibility to seasonal changes in mood and behavior is a genetic predisposition to an insufficient adaptation to temperate and high latitudes.},
  affiliation = {Rockville, Maryland, USA.},
  number = {5},
  pages = {704--7},
  volume = {54},
  year = {2000},
  month = {May},
  language = {eng},
  keywords = {Seasons, Genetic Predisposition to Disease, Evolution, Humans, Seasonal Affective Disorder},
  date-added = {2010-03-20 19:36:39 +0100},
  date-modified = {2010-03-20 19:36:43 +0100},
  doi = {10.1054/mehy.1999.0932},
  pii = {S0306-9877(99)90932-5},
  pmid = {10859671},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Sher-2000-Med%20Hypotheses_The%20role%20of%20genetic.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8018},
  rating = {4}
}
@article{Morey:2009p1827,
  author = {Leslie C Morey and Christopher J Hopwood},
  journal = {Drug Alcohol Depend},
  title = {An IRT-based measure of alcohol trait severity and the role of traitedness in trait validity: a reanalysis of Project MATCH data},
  abstract = {With the variability among alcohol users in mind, Project MATCH hypothesized several treatment matching relationships based on alcohol severity and alcohol dependence, but found limited effects. However, it is possible that the existing examinations of Project MATCH data did not fully characterize the nature of severity of alcohol dependence, as these analyses have examined dependence severity as an additive symptom count similar to the diagnostic strategy represented in the DSM-IV. We examined dependence severity as a latent trait hypothesized to have a characteristic developmental progression using Item Response Theory (IRT), and examined the implications of this approach to severity scaling in the Project MATCH data. The IRT-derived empirical continuum corresponded to an earlier theoretical model of the developmental course of alcoholism, demonstrated convergent and discriminant validity, and incremented other severity markers in predicting Alcoholics Anonymous involvement, social functioning, and readiness of change. However, it did not predict treatment outcomes or other validating variables more effectively than the measures used in the original design. Furthermore, an empirical index of person fit to this continuum did not moderate trait-validator relations including treatment outcome and treatment matching effects. Overall, findings did not support the incremental utility of a latent trait representation of alcohol severity.},
  affiliation = {Department of Psychology, Texas A{\&}M University, College Station, TX 77843-4235, USA. lmorey@psych.tamu.edu},
  number = {3},
  pages = {177--84},
  volume = {105},
  year = {2009},
  month = {Dec},
  language = {eng},
  keywords = {Psychological Theory, Adult, Psychometrics, Models: Statistical, Personality, Female, Randomized Controlled Trials as Topic, Male, Humans, Alcoholism, Severity of Illness Index, Predictive Value of Tests, Treatment Outcome},
  date-added = {2010-01-09 23:00:34 +0100},
  date-modified = {2010-01-09 23:00:34 +0100},
  doi = {10.1016/j.drugalcdep.2009.06.025},
  pii = {S0376-8716(09)00262-2},
  pmid = {19665326},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1827},
  rating = {0}
}
@article{Keller:2006p2498,
  author = {Matthew C Keller and Geoffrey Miller},
  journal = {Behav Brain Sci},
  title = {Resolving the paradox of common, harmful, heritable mental disorders: which evolutionary genetic models work best?},
  abstract = {Given that natural selection is so powerful at optimizing complex adaptations, why does it seem unable to eliminate genes (susceptibility alleles) that predispose to common, harmful, heritable mental disorders, such as schizophrenia or bipolar disorder? We assess three leading explanations for this apparent paradox from evolutionary genetic theory: (1) ancestral neutrality (susceptibility alleles were not harmful among ancestors), (2) balancing selection (susceptibility alleles sometimes increased fitness), and (3) polygenic mutation-selection balance (mental disorders reflect the inevitable mutational load on the thousands of genes underlying human behavior). The first two explanations are commonly assumed in psychiatric genetics and Darwinian psychiatry, while mutation-selection has often been discounted. All three models can explain persistent genetic variance in some traits under some conditions, but the first two have serious problems in explaining human mental disorders. Ancestral neutrality fails to explain low mental disorder frequencies and requires implausibly small selection coefficients against mental disorders given the data on the reproductive costs and impairment of mental disorders. Balancing selection (including spatio-temporal variation in selection, heterozygote advantage, antagonistic pleiotropy, and frequency-dependent selection) tends to favor environmentally contingent adaptations (which would show no heritability) or high-frequency alleles (which psychiatric genetics would have already found). Only polygenic mutation-selection balance seems consistent with the data on mental disorder prevalence rates, fitness costs, the likely rarity of susceptibility alleles, and the increased risks of mental disorders with brain trauma, inbreeding, and paternal age. This evolutionary genetic framework for mental disorders has wide-ranging implications for psychology, psychiatry, behavior genetics, molecular genetics, and evolutionary approaches to studying human behavior.},
  affiliation = {Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond, VA 23219. matthew.c.keller@gmail.com},
  number = {4},
  pages = {385-404; discussion 405--52},
  volume = {29},
  year = {2006},
  month = {Aug},
  language = {eng},
  keywords = {Humans, Models: Genetic, Adaptation: Psychological, Evolution: Molecular, Selection: Genetic, Mental Disorders, Adaptation: Physiological, Quantitative Trait Loci, Genetic Predisposition to Disease},
  date-added = {2010-01-12 13:35:01 +0100},
  date-modified = {2010-01-12 13:35:01 +0100},
  doi = {10.1017/S0140525X06009095},
  pii = {S0140525X06009095},
  pmid = {17094843},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Keller-2006-Behav%20Brain%20Sci_Resolving%20the%20parado.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2498},
  rating = {0}
}
@article{Rawlings:2008p14053,
  author = {David Rawlings and Ann Locarnini},
  journal = {Journal of Research in Personality},
  title = {Dimensional schizotypy, autism, and unusual word associations in artists and scientists},
  abstract = {Studies from a range of perspectives provide evidence for a relationship between creativity and the tendency to mental illness. The present study further examined this issue by administering ques- tionnaires measuring the minor features of psychosis and autism to 31 professional ``artists'' (visual artists and musicians) and 28 professional ``scientists'' (biological scientists and physical scientists/ mathematicians). The Oxford--Liverpool Inventory of Feelings and Experiences (O--LIFE), the Hypomanic Personality Scale, and the Autism-Spectrum Quotient (AQ), were administered, in addi- tion to a shortened form of the Kent--Rosanoff Word Association Scale. The results provided strong support for the connection of artistic creativity to positive schizotypy and hypomania and the ten- dency to make unusual word associations, and somewhat weaker support for the connection of sci- entific creativity to certain components of the autism spectrum.},
  pages = {465--471},
  volume = {42},
  year = {2008},
  date-added = {2010-08-18 10:00:57 +0200},
  date-modified = {2010-08-18 10:02:21 +0200},
  doi = {10.1016/j.jrp.2007.06.005},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Rawlings-2008-Journal%20of%20Research%20in%20Personality_Dimensional%20schizoty.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p14053},
  rating = {0}
}
@article{Mokkink:2010p7875,
  author = {Lidwine B Mokkink and Caroline B Terwee and Dirk L Knol and Paul W Stratford and Jordi Alonso and Donald L Patrick and Lex M Bouter and Henrica Cw De Vet},
  journal = {BMC Med Res Methodol},
  title = {The COSMIN checklist for evaluating the methodological quality of studies on measurement properties: A clarification of its content},
  abstract = {ABSTRACT: BACKGROUND: The COSMIN checklist (COnsensus-based Standards for the selection of health status Measurement INstruments) was developed in an international Delphi study to evaluate the methodological quality of studies on measurement properties of health-related patient reported outcomes (HR-PROs). In this paper, we explain our choices for the design requirements and preferred statistical methods for which no evidence is available in the literature or on which the Delphi panel members had substantial discussion. METHODS: The issues described in this paper are a reflection of the Delphi process in which 43 panel members participated. RESULTS: The topics discussed are internal consistency (relevance for reflective and formative models, and distinction with unidimensionality), content validity (judging relevance and comprehensiveness), hypotheses testing as an aspect of construct validity (specificity of hypotheses), criterion validity (relevance for PROs), and responsiveness (concept and relation to validity, and (in) appropriate measures). CONCLUSIONS: We expect that this paper will contribute to a better understanding of the rationale behind the items, thereby enhancing the acceptance and use of the COSMIN checklist.},
  number = {1},
  pages = {22},
  volume = {10},
  year = {2010},
  month = {Mar},
  language = {ENG},
  date-added = {2010-03-20 19:14:47 +0100},
  date-modified = {2010-03-20 19:14:48 +0100},
  doi = {10.1186/1471-2288-10-22},
  pii = {1471-2288-10-22},
  pmid = {20298572},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Mokkink-2010-BMC%20Med%20Res%20Methodol_The%20COSMIN%20checklist.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7875},
  rating = {0}
}
@article{Fleiss:1981p2596,
  author = {J L Fleiss},
  journal = {Applied Psychological Measurement},
  title = {Balanced Incomplete Block Designs for Inter-Rater Reliability Studies},
  abstract = {Occasionally, an inter-rater reliability study must be designed so that each subject is rated by fewer than all the participating raters. If there is interest in comparing the raters' mean levels of rating, and if it is desired that each mean be estimated with the same precision, then a balanced incomplete block design for the reliability study is indicated.
Methods for executing the design and for analyzing the resulting data are presented, using data from an actual study for illustration.},
  pages = {105--112},
  volume = {5},
  year = {1981},
  date-added = {2010-01-12 22:41:35 +0100},
  date-modified = {2010-01-12 22:42:50 +0100},
  doi = {10.1177/014662168100500115},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Fleiss-1981-Applied%20Psychological%20Measurement_Balanced%20Incomplete.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2596},
  rating = {0}
}
@article{Jang:1998p8023,
  author = {K L Jang and R W Lam and J A Harris and P A Vernon and W J Livesley},
  journal = {Psychiatry Res},
  title = {Seasonal mood change and personality: an investigation of genetic co-morbidity},
  abstract = {Clinical observations and empirical studies suggest that Seasonal Affective Disorder (SAD) is related to personality. The present study estimates the genetic and environmental correlations between the Global Seasonality Score (GSS) from the Seasonal Pattern Assessment Questionnaire and personality measures, assessed using the NEO Five Factor Inventory (NEO-FFI) and the Dimensional Assessment of Personality Pathology (DAPP) in a volunteer sample of 163 monozygotic (MZ) pairs (102 female and 61 male pairs) and 134 dizygotic (DZ) pairs (70 female, 38 male and 26 opposite-sex pairs). Large genetic correlations were found between the GSS and NEO-FFI Neuroticism (0.52: 95% CI = 0.36-0.71) and DAPP-BQ Cognitive Dysregulation (0.50: 95% CI = 0.30-0.71), Affective Lability (0.49: 95% CI = 0.29-0.77), Anxiousness (0.37: 95% CI = 0.18-0.55) and Stimulus Seeking (0.45: 95% CI = 0.25-0.64) scales. The genetic correlations with the remaining scales, such as Extraversion (0.06: 95% CI = -0.16-0.26), Compulsivity (-0.09: 95% CI = -0.31-0.12) and Submissiveness (0.15: 95% CI = -0.05-0.34) were uniformly small. All environmental correlations between the GSS and personality scales were < or = 0.19. These results provide evidence that the observed correlations between these seasonality and personality dimensions are attributable to common genetic factors and that environmental influences are domain specific.},
  affiliation = {Department of Psychiatry, University of British Columbia, Vancouver, Canada. kjang@unixg.ubc.ca},
  number = {1-2},
  pages = {1--7},
  volume = {78},
  year = {1998},
  month = {Mar},
  language = {eng},
  keywords = {Humans, Confidence Intervals, Likelihood Functions, Middle Aged, Personality, Adult, Neurotic Disorders, Disease Susceptibility, Aged, Aged: 80 and over, Diseases in Twins, Male, Factor Analysis: Statistical, Canada, Female, Seasonal Affective Disorder, Adolescent, Chi-Square Distribution},
  date-added = {2010-03-20 19:37:52 +0100},
  date-modified = {2010-07-29 19:45:28 +0200},
  pii = {S0165-1781(98)00006-7},
  pmid = {9579697},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Jang-1998-Psychiatry%20Res_Seasonal%20mood%20change.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8023},
  rating = {5}
}
@article{Eggen:2001aa,
  author = {T J H M Eggen},
  title = {Overexposure and underexposure of items in computerized adaptive testing},
  abstract = {Computerized adaptive tests (CATS) have shown to be considerably more efficient than paper-and-pencil tests. This gain is realized by offering each candidate the most informative item from an available item bank on the basis of the results of items that have already been administered. The item selection methods that are used to compose an optimum test for each individual do, however, have a number of drawbacks. Though a CAT generally presents each candidate with a different test, it often occurs that some items from the item bank are administered very frequently while others are never or hardly ever used. These two problems, i.e., overexposure and underexposure of items, can be eliminated by adding further restrictions to the item selection methods. However, this exposure control will affect the efficiency of the CAT. This paper presents a solution for both problems. The functioning of these methods will be illustrated with the results of simulation research that has been carried out to develop adaptive tests.},
  year = {2001},
  month = {Jan},
  date-added = {2010-01-03 19:39:02 +0100},
  date-modified = {2010-01-03 19:39:03 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Eggen-2001-_Overexposure%20and%20und.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1219},
  rating = {0}
}
@article{Ferrando:2007p3349,
  author = {P J Ferrando and U Lorenzo-Seva},
  journal = {Applied Psychological Measurement},
  title = {An Item Response Theory Model for Incorporating Response Time Data in Binary Personality Items},
  abstract = {This article describes a general item response theory model for personality items that allows the information provided by the item response times to be used to estimate the individual trait levels. The submodel describing the item response times is a modification of Thissen's log-linear model and is based on the distance-difficulty hypothesis in personality measurement. First, the procedures for fitting the model and assessing the goodness of fit are described. Second, the gain in the precision of estimating the individual trait levels when the information provided by the response times is used is assessed. Finally, all the developments in this article are illustrated by means of an empirical example.},
  number = {6},
  pages = {525--543},
  volume = {31},
  year = {2007},
  date-added = {2010-01-15 12:51:58 +0100},
  date-modified = {2010-01-15 12:53:47 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Ferrando-2007-Applied%20Psychological%20Measurement_An%20Item%20Response%20The.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3349},
  rating = {0}
}
@article{Ruitenburg:2006aa,
  author = {Joost van Ruitenburg},
  title = {ALGORITHMS FOR PARAMETER ESTIMATION IN THE RASCH MODEL},
  year = {2006},
  month = {Feb},
  date-added = {2010-01-03 19:39:03 +0100},
  date-modified = {2010-01-03 19:39:03 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Ruitenburg-2006-_ALGORITHMS%20FOR%20PARAM.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1203},
  rating = {0}
}
@article{Delord:2006p5522,
  author = {Sandrine Delord and Maria Giovanna Ducato and Delphine Pins and Fr{\'e}d{\'e}ric Devinck and Pierre Thomas and Muriel Boucart and Kenneth Knoblauch},
  journal = {Vis Neurosci},
  title = {Psychophysical assessment of magno- and parvocellular function in schizophrenia},
  abstract = {Recently developed psychophysical techniques permit the biasing of the processing of the stimulus by early visual channels so that responses reflect characteristics of either magno- or parvocellular pathways (Pokorny {\&} Smith, 1997). We used such techniques to test psychophysically whether the global magnocellular dysfunction reported in schizophrenia also affects early processes. Seven schizophrenic patients and 19 normal controls participated. The task was a four-alternative forced-choice luminance discrimination, using a 2 x 2 configuration of four 1-deg squares. Target luminance threshold was determined in three conditions: the stimulus, including the target, was pulsed for 17 ms (pulse paradigm); the target was presented on a steady background of four squares (steady paradigm), or the target was presented alone (no background paradigm). We replicated previous results demonstrating magnocellular and parvocellular signatures in control participants. No evidence for an early magnocellular deficit could be detected as the thresholds of all schizophrenic observers were higher both in the steady paradigm (presumed magnocellular mediation) and in the pulse paradigm (presumed parvocellular mediation). Magnocellular dysfunction, if present in schizophrenia, must concern more integrated processes, possibly at levels at which parvocellular and magnocellular paths interact.},
  affiliation = {Equipe de Psychologie Cognitive, Laboratoire de Psychologie (EA 3662), Universit{\'e} Bordeaux 2, Bordeaux, France. sandrine.delord@psycho.u-bordeaux2.fr},
  number = {3-4},
  pages = {645--50},
  volume = {23},
  year = {2006},
  month = {Jan},
  language = {eng},
  keywords = {Light, Female, Pattern Recognition: Visual, Middle Aged, Motion Perception, Adult, Visual Pathways, Adolescent, Judgment, Schizophrenic Psychology, Discrimination (Psychology), Humans, Photic Stimulation, Schizophrenia, Contrast Sensitivity, Male, Space Perception, Psychophysics},
  date-added = {2010-02-12 15:18:44 +0100},
  date-modified = {2010-02-12 15:18:45 +0100},
  doi = {10.1017/S0952523806233017},
  pii = {S0952523806233017},
  pmid = {16962008},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Delord-2006-Vis%20Neurosci_Psychophysical%20asses.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5522},
  rating = {0}
}
@article{Koschack:2010p6518,
  author = {Janka Koschack and Gabriella Marx and J{\"o}rg Schnakenberg and Michael M Kochen and Wolfgang Himmel},
  journal = {Journal of Clinical Epidemiology},
  title = {Comparison of two self-rating instruments for medication adherence assessment in hypertension revealed insufficient psychometric properties},
  abstract = {OBJECTIVE: In cases of insufficiently controlled blood pressure, it is important for practitioners to distinguish between "nonadherence" and "nonresponse" to antihypertensive drug treatment. A reliable and valid adherence measurement based on the patient's self-report may be helpful in daily practice. STUDY DESIGN AND SETTING: In a primary care sample with 353 hypertensive patients, we applied two self-rating instruments to assess medication adherence (the "Hill-Bone Compliance to High Blood Pressure Therapy Scale" and Morisky's "Self-Reported Measure of Medication Adherence") and compared their psychometric properties. RESULTS: Both scales showed low acceptability and insufficiency to moderate internal consistency (Cronbach's alpha=0.25 and 0.73, respectively). Their convergent validity as indexed by kappa=0.39 could be judged as "fair" at best. Testing the power to predict blood pressure >140/90mmHg, both scales showed an accuracy of 57% and 62%, respectively. The positive likelihood, that is, the increase in likelihood of high blood pressure in cases of nonadherence was 1.00 and 1.32, respectively. CONCLUSION: The use of both scales cannot be recommended. They showed considerable floor effects, and their ability to identify medication adherence was inconsistent for nearly every third patient. The power of both scales to predict uncontrolled blood pressure was essentially a chance. The underlying conceptual framework of medication adherence therefore needs to be rethought.},
  affiliation = {Department of General Practice, University of G{\"o}ttingen, Humboldtallee 38, 37073 G{\"o}ttingen, Germany.},
  number = {3},
  pages = {299--306},
  volume = {63},
  year = {2010},
  month = {Mar},
  language = {ENG},
  date-added = {2010-02-23 08:42:12 +0100},
  date-modified = {2010-02-23 08:42:16 +0100},
  doi = {10.1016/j.jclinepi.2009.06.011},
  pii = {S0895-4356(09)00206-6},
  pmid = {19762213},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Koschack-2010-Journal%20of%20Clinical%20Epidemiology_Comparison%20of%20two%20se-1.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6518},
  rating = {3}
}
@article{Auquier:2003p7244,
  author = {P Auquier and M C Simeoni and C Sapin and G Reine and V Aghababian and J Cramer and C Lan{\c c}on},
  journal = {Schizophr Res},
  title = {Development and validation of a patient-based health-related quality of life questionnaire in schizophrenia: the S-QoL},
  abstract = {We developed a self-administered instrument to assess health-related quality of life (HRQL) among people with schizophrenia. The S-QoL, based on Calman's approach to the subject's point of view, is a multidimensional instrument that is sensitive to change. The scale is a 41-item questionnaire with eight subscales (psychological well-being, self-esteem, family relationships, relationships with friends, resilience, physical well-being, autonomy and sentimental life) and a total score. In-depth interviews with patients determined the pertinent issues for item development. The validation study, performed with 207 patients, showed high internal consistency reliability, reproducibility and responsiveness. Construct validity was confirmed using established clinical and HRQL measures. S-QoL covers domains that differ from areas tapped in other measures, with greater responsiveness. The S-QoL is an efficient instrument for the measurement of the impact of schizophrenia on individuals' lives.},
  affiliation = {Public Health Department, University Hospital Timone, Marseilles, France. lsp@medecine.univ-mrs.fr},
  number = {1-2},
  pages = {137--49},
  volume = {63},
  year = {2003},
  month = {Sep},
  language = {eng},
  keywords = {Quality of Life, Questionnaires, Reproducibility of Results, Health Status, Female, Self Assessment (Psychology), Adult, Humans, Self Concept, Adolescent, Family Relations, Male, Schizophrenia, Sensitivity and Specificity, Cohort Studies, Aged, Middle Aged},
  date-added = {2010-03-10 20:12:40 +0100},
  date-modified = {2010-07-29 19:50:06 +0200},
  pii = {S0920996402003559},
  pmid = {12892868},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Auquier-2003-Schizophr%20Res_Development%20and%20vali.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7244},
  rating = {0}
}
@article{Flint:2005p7029,
  author = {Jonathan Flint and William Valdar and Sagiv Shifman and Richard Mott},
  journal = {Nat Rev Genet},
  title = {Strategies for mapping and cloning quantitative trait genes in rodents},
  abstract = {Over the past 15 years, more than 2,000 quantitative trait loci (QTLs) have been identified in crosses between inbred strains of mice and rats, but less than 1% have been characterized at a molecular level. However, new resources, such as chromosome substitution strains and the proposed Collaborative Cross, together with new analytical tools, including probabilistic ancestral haplotype reconstruction in outbred mice, Yin-Yang crosses and in silico analysis of sequence variants in many inbred strains, could make QTL cloning tractable. We review the potential of these strategies to identify genes that underlie QTLs in rodents.},
  affiliation = {Wellcome Trust Centre for Human Genetics, Oxford University, Roosevelt Drive, Oxford OX3 7BN, United Kingdom. jf@well.ox.ac.uk},
  number = {4},
  pages = {271--86},
  volume = {6},
  year = {2005},
  month = {Apr},
  language = {eng},
  keywords = {Animals, Cloning: Molecular, Animals: Outbred Strains, Phenotype, Breeding, Mice, Quantitative Trait Loci, Mice: Inbred Strains, Crosses: Genetic, Genetic Variation, Rats, Gene Expression Profiling, Quantitative Trait: Heritable, Mutagenesis, Haplotypes, Chromosome Mapping, Animals: Genetically Modified},
  date-added = {2010-03-06 20:05:59 +0100},
  date-modified = {2010-03-06 20:05:59 +0100},
  doi = {10.1038/nrg1576},
  pii = {nrg1576},
  pmid = {15803197},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Flint-2005-Nat%20Rev%20Genet_Strategies%20for%20mappi.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7029},
  rating = {0}
}
@article{EspositoVinzi:2010p13498,
  author = {V Esposito Vinzi and G Russolillo and L Trinchera},
  journal = {42emes Journ{\'e}es de Statistique},
  title = {An integrated pls regression-based approach for multidimensional blocks in PLS path modeling},
  abstract = {PLS Path Modeling (PLS-PM) is classically regarded as a component-based ap- proach to Structural Equation Models and has been more recently revisited as a general frame- work for multiple table analysis. Here we propose two new modes for estimating outer weights in PLS-PM: the PLScore Mode and the PLScow Mode. Both modes involve integrating a PLS Regression as an estimation technique within the outer estimation phase of PLS-PM. However, in PLScore Mode a PLS Regression is run under the classical PLS-PM constraints of unitary variance for the latent variable scores, while in PLScow Mode the outer weights are constrained to have a unitary norm thus importing the classical normalization constraints of PLS Regres- sion. Moreover, we show how the newly proposed modes are linked to the standard Mode A and Mode B outer estimates in PLS-PM as well as to the New Mode A recently proposed in a criterion-based approach by Tenenhaus {\&} Tenenhaus (2009).},
  year = {2010},
  date-added = {2010-07-07 20:35:50 +0200},
  date-modified = {2010-07-07 20:38:39 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Esposito%20Vinzi-2010-42emes%20Journe%CC%81es%20de%20Statistique_An%20integrated%20pls%20re.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13498},
  rating = {0}
}
@article{VaivreDouret:2007p12933,
  author = {L Vaivre-Douret},
  journal = {Arch Pediatr},
  title = {[Non-verbal learning disabilities: developmental dyspraxia]},
  abstract = {Dyspraxia is a non verbal neuropsychological dysfunction still unrecognized but which can generate scholar learning and behavioural disabilities. We propose, at first time, to do a state of art with the various terminologies and typologies which lead to put together clumsiness, motor coordination disorder and the different types of dyspraxia. Then, we will bring an integrative model and clinical data in children with developmental dyspraxia, allowing a better pointing, to make a diagnostic and then we suggest some advices for remediations.},
  affiliation = {Child Psychiatry of Necker Hospital and Pediatric of Port Royal-Cochin hospital, APHP, University Paris 10, rue de S{\`e}vres, 75015 Paris, France. laurence.vavre@nck.ap-hop-paris.fr},
  number = {11},
  pages = {1341--9},
  volume = {14},
  year = {2007},
  month = {Nov},
  language = {fre},
  keywords = {Child: Preschool, Neuropsychological Tests, Apraxias, Educational Status, Humans, Comorbidity},
  date-added = {2010-06-25 21:45:56 +0200},
  date-modified = {2010-06-25 21:45:56 +0200},
  doi = {10.1016/j.arcped.2007.06.034},
  pii = {S0929-693X(07)00427-7},
  pmid = {17964127},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12933},
  rating = {0}
}
@article{Nguyen:2008p7286,
  author = {Huong Q Nguyen and DorAnne Donesky-Cuenco and Virginia Carrieri-Kohlman},
  journal = {Int J Nurs Stud},
  title = {Associations between symptoms, functioning, and perceptions of mastery with global self-rated health in patients with COPD: a cross-sectional study},
  abstract = {BACKGROUND: Self-rated health has been shown to be a significant predictor of mortality. However, there is limited knowledge on what factors contribute to the global perception of self-rated health in patients with chronic obstructive pulmonary disease (COPD). OBJECTIVE: To describe the associations between physical and psychological symptoms, physical and mental health functioning, and perceptions of mastery with concurrent and longitudinal global self-rated health (GSRH) in patients with COPD and to determine if gender modifies these relationships. DESIGN: Cross-sectional analysis of data from a longitudinal clinical trial. SETTING: University medical center in the United States. PARTICIPANTS: 115 patients with moderate to severe COPD. METHODS: GSRH was measured using one question from the Medical Outcomes Study, SF-36 which states, "In general, would you say your health is: excellent, very good, good, fair, or poor". Physical and psychological symptoms were measured with the Shortness of Breath Questionnaire, Chronic Respiratory Questionnaire (CRQ), and Center for Epidemiologic Studies Depression Scale (CESD); the SF-36 was used to measure physical and mental health functioning; mastery was measured by a sub-scale of the CRQ. The BODE index, a multidimensional disease severity grading system, was also included. Stepwise logistic regression analyses were performed. RESULTS: In cross-sectional analyses, only disease severity as measured by the BODE index was associated with GSRH [odds ratio, 1.52; 95% confidence interval, CI (1.08, 2.15)]. Stratified analyses by gender showed that the association between the BODE index and the GSRH held up for men, but not for women. Higher perception of symptom control was associated with positive health ratings in women. Subjects with less fatigue at baseline had a lower risk of reporting poor health 12 months later [OR 0.84; 95% CI (0.72, 0.98)]. CONCLUSIONS: For patients with COPD, ratings of global health were mostly influenced by measures that reflect their physical state, e.g. disease severity and fatigue. While additional work is needed to better understand gender differences in factors that contribute to GSRH, therapeutic nursing interventions might place greater focus on symptom management if the goal is to improve patients' perceptions of their global health.},
  affiliation = {University of Washington, Seattle, Washington, 1959 NE Pacific St., HSB T602A, Seattle, WA 98195, USA. HQN@u.washington.edu},
  number = {9},
  pages = {1355--65},
  volume = {45},
  year = {2008},
  month = {Sep},
  language = {eng},
  keywords = {Cross-Sectional Studies, Humans, Aged, Female, Middle Aged, Pulmonary Disease: Chronic Obstructive, Male, Self Assessment (Psychology)},
  date-added = {2010-03-10 20:17:15 +0100},
  date-modified = {2010-03-10 20:17:15 +0100},
  doi = {10.1016/j.ijnurstu.2007.09.012},
  pii = {S0020-7489(07)00243-X},
  pmid = {17983617},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Nguyen-2008-Int%20J%20Nurs%20Stud_Associations%20between.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7286},
  rating = {0}
}
@article{Goeman:2008p2291,
  author = {J J Goeman and A Solari},
  title = {The sequential rejection principle of familywise error control},
  year = {2008},
  date-added = {2010-01-10 12:04:45 +0100},
  date-modified = {2010-01-10 12:05:14 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Goeman-2008-_The%20sequential%20rejec.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2291},
  rating = {0}
}
@article{Byrne:1989p13785,
  author = {B M Byrne and R J Shavelson and B Muth{\'e}n},
  journal = {Psychological Bulletin},
  title = {Testing for the Equivalence of Factor Covariance and Mean Structures: The Issue of Partial Measurement Invariance},
  abstract = {Addresses issues related to partial measurement invariance using a tutorial approach based on the LISREL confirmatory factor analytic model. Specifically, we demonstrate procedures for (a) using "sensitivity analyses" to establish stable and substantively well-fitting baseline models, (b) determin- ing partially invariant measurement parameters, and (c) testing for the invariance of factor covari- ance and mean structures, given partial measurement invariance. Wealso show, explicitly, the trans- formation of parameters from an all-^fto an all-y model specification, for purposes of testing mean structures. These procedures are illustrated with multidimensional self-concept data from low (« = 248) and high (n = 582) academically tracked high school adolescents.},
  number = {3},
  pages = {456--466},
  volume = {105},
  year = {1989},
  date-added = {2010-07-29 12:16:06 +0200},
  date-modified = {2010-07-29 12:17:07 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Byrne-1989-Psychological%20Bulletin_Testing%20for%20the%20Equi.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13785},
  rating = {0}
}
@article{Hill:2006p13990,
  author = {Elisabeth L Hill and Sylvie Berthoz},
  journal = {J Autism Dev Disord},
  title = {Response to "Letter to the Editor: The overlap between alexithymia and Asperger's syndrome", Fitzgerald and Bellgrove, Journal of Autism and Developmental Disorders, 36(4)},
  number = {8},
  pages = {1143--5},
  volume = {36},
  year = {2006},
  month = {Nov},
  language = {eng},
  keywords = {Positron-Emission Tomography, Asperger Syndrome, Prevalence, Gyrus Cinguli, Magnetic Resonance Imaging, Humans, Affective Symptoms},
  date-added = {2010-08-04 09:21:05 +0200},
  date-modified = {2010-08-22 20:58:33 +0200},
  doi = {10.1007/s10803-006-0287-7},
  pmid = {17080269},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Hill-2006-J%20Autism%20Dev%20Disord_Response%20to%20%22Letter.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13990},
  read = {Yes},
  rating = {4}
}
@article{Schunemann:2006p5956,
  author = {Holger J Sch{\"u}nemann and Elie A Akl and Gordon H Guyatt},
  journal = {Health Qual Life Outcomes},
  title = {Interpreting the results of patient reported outcome measures in clinical trials: the clinician's perspective},
  abstract = {This article deals with the problem of interpreting health-related quality of life (HRQL) outcomes in clinical trials. First, we will briefly describe how dichotomization and item response theory can facilitate interpretation. Based on examples from the medical literature for the interpretation of HRQL scores we will show that dichotomies may help clinicians understand information provided by HRQL instruments in RCTs. They can choose thresholds to calculate proportions of patients benefiting based on absolute scores or change scores. For example, clinicians interpreting clinical trial results could consider the difference in the proportion of patients who achieve a mean score of 50 before and after an intervention on a scale from 1 to 100. For the change score approach, they could consider the proportion of patients who have changed by a score of 5 or more. Finally, they can calculate the proportion of patients benefiting and transform these numbers into a number needed to treat or natural frequencies. Second, we will describe in more detail an approach to the interpretation of HRQL scores based on the minimal important difference (MID) and proportions. The MID is the smallest difference in score in the outcome of interest that informed patients or informed proxies perceive as important, either beneficial or harmful, and that would lead the patient or clinician to consider a change in the management. Any change in management will depend on the downsides, including cost and inconvenience, associated with the intervention. Investigators can help with the interpretation of HRQL scores by determining the MID of an HRQL instrument and provide mean differences in relation to the MID. For instance, for an MID of 0.5 on a seven point scale investigators could provide the mean change on the instrument as well as the proportion of patients with scores greater than the MID. Thus, there are several steps investigators can take to facilitate this process to help bringing HRQL information closer to the bedside.},
  affiliation = {Division of Clinical Research Development and INFORMAtion Translation, Department of Epidemiology, Istituto Regina Elena/Italian National Cancer Institute Rome, Rome, Italy. schuneh@mcmaster.ca},
  pages = {62},
  volume = {4},
  year = {2006},
  month = {Jan},
  language = {eng},
  keywords = {Outcome Assessment (Health Care), Humans, Decision Support Techniques, Data Interpretation: Statistical, Quality of Life, Regression Analysis, Sickness Impact Profile, Risk Assessment, Randomized Controlled Trials as Topic, Judgment},
  date-added = {2010-02-18 23:24:37 +0100},
  date-modified = {2010-02-18 23:24:38 +0100},
  doi = {10.1186/1477-7525-4-62},
  pii = {1477-7525-4-62},
  pmid = {16973000},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Sch%C3%BCnemann-2006-Health%20and%20Quality%20of%20Life%20Outcomes_Interpreting%20the%20res.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5956},
  rating = {0}
}
@inproceedings{Laham:1997,
  author = {Darrell Laham},
  journal = {Proceedings},
  title = {Latent semantic analysis approaches to categorization},
  pages = {979},
  year = {1997},
  date-added = {2010-01-10 11:33:25 +0100},
  date-modified = {2010-01-10 11:33:25 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Laham-1997-Proceedings_Latent%20semantic%20anal.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1910},
  rating = {0}
}
@article{Revicki:2007p8807,
  author = {Dennis A Revicki and Regulatory Issues and Patient-Reported Outcomes Task Force for the International Society for Quality of Life Research},
  journal = {Lancet},
  title = {FDA draft guidance and health-outcomes research},
  affiliation = {Center for Health Outcomes Research, United Biosource Corporation, Bethesda, MD 20814, USA. Dennis.Revicki@Unitedbiosource.com},
  number = {9561},
  pages = {540--2},
  volume = {369},
  year = {2007},
  month = {Feb},
  language = {eng},
  keywords = {Quality of Life, Humans, Health Planning Guidelines, Drug Approval, Outcome and Process Assessment (Health Care), United States Food and Drug Administration, United States, Clinical Trials as Topic},
  date-added = {2010-03-22 12:09:03 +0100},
  date-modified = {2010-07-29 19:38:44 +0200},
  doi = {10.1016/S0140-6736(07)60250-5},
  pii = {S0140-6736(07)60250-5},
  pmid = {17307086},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Revicki-2007-Lancet_FDA%20draft%20guidance%20a.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8807},
  read = {Yes},
  rating = {0}
}
@article{Chow:2002p11428,
  author = {S L Chow},
  title = {Methods in psychological research},
  abstract = {The impetus of psychological research is the inability of psychologists to accommodate new phenomena or problems with their existing knowledge. Conducting research is a formal and systematic exercise for the following reasons. First, conceptual skills are deployed to propose a theory for the to-be-explained phenomenon. Second, deductive logic is used to derive the research hypotheses from the theory. This is possible only if the theory is sufficiently specific. Third, researchers collect data systematically according to a plan or design. Fourth, the inductive rule that underlies the experimental design makes it possible to exclude some potential interpretations of the data. Fifth, appropriate statistical procedures are used to tabulate and analyze the data. Lastly, deductive logic is used to draw the theoretical conclusion. In short, the success of the research process depends on a confluence of conceptual, meta-theoretical, methodological, and statistical skills.
For various reasons, psychologists may emphasize some of the six aforementioned reasons at the expense of the other issues. Consequently, psychologists use a wide array of research methods. This sometimes gives the impression of fundamental methodological differences among psychologists. While this is not necessarily undesirable, it is hoped that the discussion of the meta-theoretical and philosophical issues serves to set the methodological disagreements among psychologists in the proper context. For example, before considering whether empirical research should be driven atheoretically by data or be guided conceptually by theory, it may be helpful to examine first whether or not there is ``pure'' observation. At the same time, realizing that all observations are theory-dependent, should we conclude that no objectivity is possible, particularly when psychologists appeal to the incorporeal entity, the mind? Before attempting to answer the question as to whether or not the mind can be reduced to the brain, we may find it necessary to see how cognitive psychologists study unobservable hypothetical structures or processes like perception, memory, intelligence, motives, and the like.
Explanations are qualitative in the sense that psychological phenomena are explained in terms of hypothetical mechanisms to which theoretical properties are attributed. Are psychologists being inconsistent when they insist on using statistics or psychometric tests? How is it possible to use
1
quantitative data as evidential support for qualitative theories? How do psychologists generalize from their data that are collected in an artificial setting to real-life phenomena? What is the rationale of experimentation in psychological research? How can psychologists assess their research?},
  year = {2002},
  date-added = {2010-05-01 17:09:48 +0200},
  date-modified = {2010-05-01 17:10:29 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Chow-2002-_Methods%20in%20psycholog.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11428},
  rating = {0}
}
@article{Norman:2009p11802,
  author = {Richard Norman and Paula Cronin and Rosalie Viney and Madeleine King and Deborah Street and Julie Ratcliffe},
  journal = {Value Health},
  title = {International Comparisons in Valuing EQ-5D Health States: A Review and Analysis},
  abstract = {ABSTRACT Objective: To identify the key methodological issues in the construction of population-level EuroQol 5-dimensions (EQ-5D)/time trade-off (TTO) preference elicitation studies. Method: This study involved three components. The first was to identify existing population-level EQ-5D TTO studies. The second was to illustrate and discuss the key areas of divergence between studies, including the international comparison of tariffs. The third was to portray the relative merits of each of the approaches and to compare the results of studies across countries. Results: While most articles report use of the protocol developed in the original UK study, we identified three key areas of divergence in the construction and analysis of surveys. These are the number of health states valued to determine the algorithm for estimating all health states, the approach to valuing states worse than immediate death, and the choice of algorithm. The evidence on international comparisons suggests differences between countries although it is difficult to disentangle differences in cultural attitudes with random error and differences as a result of methodological divergence. Conclusions: Differences in methods may obscure true differences in values between countries. Nevertheless, population-specific valuation sets for countries engaging in economic evaluation would better reflect cultural differences and are therefore more likely to accurately represent societal attitudes.},
  affiliation = {Centre for Health Economics Research and Evaluation (CHERE), Faculty of Business, University of Technology, Sydney, NSW, Australia.},
  pages = {},
  year = {2009},
  month = {Aug},
  language = {ENG},
  date-added = {2010-05-23 10:41:18 +0200},
  date-modified = {2010-05-23 10:41:18 +0200},
  doi = {10.1111/j.1524-4733.2009.00581.x},
  pii = {VHE581},
  pmid = {19695009},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Norman-2009-Value%20Health_International%20Compar.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11802},
  rating = {0}
}
@article{Scheetz:2009p1537,
  author = {Linda J Scheetz and Juan Zhang and John Kolassa},
  journal = {Artif Intell Med},
  title = {Classification tree modeling to identify severe and moderate vehicular injuries in young and middle-aged adults},
  abstract = {OBJECTIVES: Motor vehicle crashes are a leading cause of mortality and morbidity worldwide. Even though trauma centers provide the gold standard of care for motor vehicle crash patients with life- or limb-threatening injuries, many whose lives might be saved by trauma center care are treated instead at non-trauma center hospitals. Triage algorithms, designed to identify patients with life- or limb-threatening injuries who should be transported to a trauma center, lack appropriate sensitivity to many of these injuries. The challenge to the trauma community is differentiating patients with life- or limb-threatening injuries from those with less severe injuries at the crash scene so that the patients can be transported to the most appropriate level of care. The purpose of this study was to use crash scene data available to emergency responders to classify adults with moderate and severe injuries. These classifiers might be useful to guide triage decision making. METHODS AND MATERIAL: Records of 74,626 adults, age 18-64 years, from the National Automotive Sampling System Crashworthiness Data Systems database were analyzed using classification and regression trees (CART) analysis. Both CART models (moderate injury and severe injury) included 13 predictor variables. The response variables were the targeted injury severity score cut points for moderate and severe injury. Two final classification trees were developed: one that classified occupants based on moderate injury and the other on severe injury. Misclassification costs were manipulated to achieve the best model fit for each tree. RESULTS: The moderate injury classification tree had three splitters: police-estimated injury severity, restraint use, and number of persons injured. The severe injury classification tree had four splitters: police-estimated injury severity, manner of collision, number of persons injured in the crash, and age. Sensitivity and specificity of the classification trees were 93.70%, 77.53% (moderate) and 99.18%, 73.96% (severe), respectively. CONCLUSIONS: CART analysis can be used to classify injury severity using crash scene information that is available to emergency responders. This procedure offers an opportunity to examine alternative methods of identifying injury severity that might assist emergency responders to differentiate more accurately persons who should receive trauma center care from those who can be treated safely at a non-trauma center hospital.},
  affiliation = {New York University College of Nursing, 246 Greene Street, New York, NY 10003, USA. Ljs13@nyu.edu},
  number = {1},
  pages = {1--10},
  volume = {45},
  year = {2009},
  month = {Jan},
  language = {eng},
  keywords = {Databases: Factual, Wounds and Injuries, Adolescent, Models: Theoretical, Humans, Algorithms, Middle Aged, Adult, Accidents: Traffic, Severity of Illness Index},
  date-added = {2010-01-07 16:21:24 +0100},
  date-modified = {2010-07-29 19:17:26 +0200},
  doi = {10.1016/j.artmed.2008.11.002},
  pii = {S0933-3657(08)00174-7},
  pmid = {19091533},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Scheetz-2009-Artif%20Intell%20Med_Classification%20tree.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1537},
  rating = {0}
}
@article{Lagergren:2007p7473,
  author = {Pernilla Lagergren and Peter Fayers and Thierry Conroy and Hubert J Stein and Orhan Sezer and Richard Hardwick and Eva Hammerlid and Andrew Bottomley and Eric Van Cutsem and Jane M Blazeby and European Organisation for Research Treatment of Cancer Gastrointestinal and Quality of Life Groups},
  journal = {Eur J Cancer},
  title = {Clinical and psychometric validation of a questionnaire module, the EORTC QLQ-OG25, to assess health-related quality of life in patients with cancer of the oesophagus, the oesophago-gastric junction and the stomach},
  abstract = {AIM: To combine and test the EORTC questionnaires for assessing quality of life (HRQL) for oesophageal (QLQ-OES18) and stomach cancer (QLQ-STO22), into a single questionnaire for tumours of the oesophagus, oesophago-gastric junction or stomach. METHODS: The QLQ-OES18, QLQ-STO22 and seven modified items were administered to 300 patients with oesophageal (n=148), junctional (n=66), or gastric cancer (n=86). Semi-structured interviews assessed item and scale preference and multi-trait scaling analyses confirmed the scale structure of the new module (QLQ-OG25). This was further tested for validity. RESULTS: The QLQ-OG25 has six scales, dysphagia, eating restrictions, reflux, odynophagia, pain and anxiety. Scales have good reliability (alpha range 0.67-0.87) and they distinguish between tumour sites and disease stage. Scales do not correlate highly with scores from the core questionnaire, thus indicating that the module was addressing separate HRQL aspects. CONCLUSION: The QLQ-OG25 is recommended to supplement the EORTC QLQ-C30 when assessing HRQL in patients with oesophageal, junctional or gastric cancer.},
  affiliation = {Department of Social Medicine at South Bristol, University of Bristol, Bristol, United Kingdom.},
  number = {14},
  pages = {2066--73},
  volume = {43},
  year = {2007},
  month = {Sep},
  language = {eng},
  keywords = {Adult, Quality of Life, Stomach Neoplasms, Esophagogastric Junction, Male, Aged: 80 and over, Eating Disorders, Prospective Studies, Anxiety, Health Status, Gastroesophageal Reflux, Sensitivity and Specificity, Pain, Female, Questionnaires, Esophageal Neoplasms, Humans, Middle Aged, Psychometrics, Aged},
  date-added = {2010-03-10 20:45:02 +0100},
  date-modified = {2010-03-10 20:45:02 +0100},
  doi = {10.1016/j.ejca.2007.07.005},
  pii = {S0959-8049(07)00528-X},
  pmid = {17702567},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7473},
  rating = {0}
}
@article{Narr:2009p8838,
  author = {Katherine L Narr and Philip R Szeszko and Todd Lencz and Roger P Woods and Liberty S Hamilton and Owen Phillips and Delbert Robinson and Katherine E Burdick and Pamela DeRosse and Raju Kucherlapati and Paul M Thompson and Arthur W Toga and Anil K Malhotra and Robert M Bilder},
  journal = {Hum Brain Mapp},
  title = {DTNBP1 is associated with imaging phenotypes in schizophrenia},
  abstract = {Dystrobrevin binding protein 1 (DTNBP1) has been identified as putative schizophrenia susceptibility gene, but it remains unknown whether polymorphisms relate to altered cerebral structure. We examined relationships between a previously implicated DTNBP1 risk variant [P1578] and global and segmented brain tissue volumes and regional cortical thickness in schizophrenia (n = 62; 24 risk carriers) and healthy subjects (n = 42; 11 risk carriers), across ethnic groups and within Caucasians. Schizophrenia patients showed similar brain volumes, but significantly reduced brain-size adjusted gray matter and CSF volumes and cortical thinning in a widespread neocortical distribution compared to controls. DTNBP1 risk was found associated with reduced brain volume, but not with tissue sub-compartments. Cortical thickness, which was weakly associated with brain size, showed regional variations in association with genetic risk, although effects were dominated by highly significant genotype by diagnosis interactions over broad areas of cortex. Risk status was found associated with regional cortical thinning in patients, particularly in temporal networks, but with thickness increases in controls. DTNBP1 effects for brain volume and cortical thickness appear driven by different neurobiological processes. Smaller brain volumes observed in risk carriers may relate to previously reported DTNBP1/cognitive function relationships irrespective of diagnosis. Regional cortical thinning in patient, but not in control risk carriers, may suggest that DTNBP1 interacts with other schizophrenia-related risk factors to affect laminar thickness. Alternatively, DTNBP1 may influence neural processes for which individuals with thicker cortex are less vulnerable. Although DTNBP1 relates to cortical thinning in schizophrenia, morphological changes in the disorder are influenced by additional genetic and/or environmental factors.},
  affiliation = {Laboratory of Neuro Imaging and Ahmanson-Lovelace Brain Mapping Center, Department of Neurology, Geffen School of Medicine at UCLA, Los Angeles, California 90095, USA. narr@loni.ucla.edu},
  number = {11},
  pages = {3783--94},
  volume = {30},
  year = {2009},
  month = {Nov},
  language = {eng},
  keywords = {Female, Phenotype, Models: Neurological, Young Adult, Linear Models, Adult, Male, Schizophrenia, Carrier Proteins, Magnetic Resonance Imaging, Cerebral Cortex, Risk Factors, Brain Mapping, Imaging: Three-Dimensional, Psychiatric Status Rating Scales, Humans, Genetic Predisposition to Disease},
  date-added = {2010-03-22 12:34:40 +0100},
  date-modified = {2010-03-22 12:34:41 +0100},
  doi = {10.1002/hbm.20806},
  pmid = {19449336},
  url = {http://www3.interscience.wiley.com/journal/122385648/abstract},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Narr-2009-Hum%20Brain%20Mapp_DTNBP1%20is%20associated.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8838},
  rating = {0}
}
@article{Krishnamurthy:2009p12334,
  author = {V Krishnamurthy and A d'Aspremont},
  title = {A Pathwise Algorithm for Covariance Selection},
  abstract = {Covariance selection seeks to estimate a covariance matrix by maximum likelihood while restricting the number of nonzero inverse covariance matrix coefficients. A single penalty pa- rameter usually controls the tradeoff between log likelihood and sparsity in the inverse matrix. We describe an efficient algorithm for computing a full regularization path of solutions to this problem.},
  year = {2009},
  date-added = {2010-06-12 10:13:20 +0200},
  date-modified = {2010-06-12 10:13:55 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Krishnamurthy-2009-_A%20Pathwise%20Algorithm.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12334},
  rating = {0}
}
@article{Hoh2000,
  author = {J Hoh and J Ott},
  journal = {Proceedings of the National Academy of Sciences},
  title = {Scan statistics to scan markers for susceptibility genes},
  pages = {9615--9617},
  volume = {97},
  year = {2000},
  date-added = {2010-01-12 14:26:52 +0100},
  date-modified = {2010-01-12 14:26:52 +0100},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2556},
  rating = {0}
}
@article{Hansenne:1999p12223,
  author = {M Hansenne and J Reggers and E Pinto and K Kjiri and A Ajamier and Marc Ansseau},
  journal = {J Psychiatr Res},
  title = {Temperament and character inventory (TCI) and depression},
  abstract = {Although several studies have assessed the relationships between the temperament dimensions of the Cloninger model of personality and depression, little is known about the role played by the character dimensions proposed by the seven-factor model of Cloninger in depression. In this study, the relationships between the Temperament and Character Inventory (TCI) and depression were examined in a sample of 40 major depressive patients and 40 healthy controls. Depressed patients exhibit higher harm avoidance and self-transcendence scores as well as lower self-directedness and cooperativeness scores as compared to healthy controls. However, the three other dimensions do not differ between depressive patients and controls. Among the depressive group, harm avoidance, self-directedness and cooperativeness dimensions are related to the severity of depression as assessed by the Hamilton scale. This study confirms the state dependence of the harm avoidance dimension and suggests a relationship between the character dimensions of the Cloninger model and depression.},
  affiliation = {Psychiatric Unit, Centre Hospitalier Universitaire du Sart Tilnan, Li{\`e}ge, Belgium. michel.hansenne@ulg.ac.be},
  number = {1},
  pages = {31--6},
  volume = {33},
  year = {1999},
  month = {Jan},
  language = {eng},
  keywords = {Depressive Disorder, Humans, Male, Cooperative Behavior, Character, Exploratory Behavior, Psychiatric Status Rating Scales, Questionnaires, Adult, Middle Aged, Personality Inventory, Temperament, Female},
  date-added = {2010-05-30 10:48:05 +0200},
  date-modified = {2010-07-29 20:42:00 +0200},
  pii = {S0022-3956(98)00036-3},
  pmid = {10094237},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Hansenne-1999-J%20Psychiatr%20Res_Temperament%20and%20char.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12223},
  rating = {0}
}
@article{Mariano:2005p12800,
  author = {L T Mariano and M Orlando and B Ghosh-Dastidar},
  journal = {ASA Section on Bayesian Statistical Science},
  title = {A Bayesian IRT Model for Comparative Item Performance Under Dual Administration Modes},
  abstract = {Ordinal scale response items are often used in quantifying a latent trait. The mode in which these items are administered may effect an item's characteristics, such as the item's location on the latent scale and the efficiency of the item in discriminating between different values of the latent trait. We present the Bayesian Differential Mode Effects Model (BDMEM), a Bayesian Item Response Theory (IRT) model for the detection and quantification of mode of administration effects at both the item and form level. To illustrate the BDMEM, we present an example of a mental health survey administered both by telephone and self-administered questionnaire. The BDMEM is compared to the popular approach of IRT differ- ential item functioning (DIF) evaluation, and its advantages over DIF are highlighted.},
  year = {2005},
  date-added = {2010-06-18 21:23:47 +0200},
  date-modified = {2010-06-18 21:24:38 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Mariano-2005-ASA%20Section%20on%20Bayesian%20Statistical%20Science_A%20Bayesian%20IRT%20Model.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12800},
  rating = {0}
}
@article{Briggs:2007p4095,
  author = {D C Briggs},
  title = {Using Explanatory Item Response Models to Analyze Group Differences in Science Achievement},
  abstract = {This paper illustrates the use of an explanatory item response modeling (EIRM) approach in the context of measuring group differences in science achievement. The distinction between item response models and EIRMs, recently elaborated by De Boeck {\&} Wilson (2004), is presented within the statistical framework of generalized linear mixed models. It is shown that the EIRM approach provides a powerful framework for both a psychometric and statistical analysis of group differences. This is contrasted with the more typical two-step approach, in which psychometric analysis (i.e., measurement) and statistical analysis (i.e., explanation) occur independently. The two approaches are each used to describe and explain racial/ethnic gaps on a standardized science test. It is shown that the EIRM approach results in estimated racial/ethnic achievement gaps that are larger than those found in the two-step approach. In addition, when science achievement is examined by subdomains, the magnitude of racial/ethnic gap estimates under the EIRM approach are more variable and sensitive to the inclusion of contextual variables. These differences stem from the fact that the EIRM approach allows for disattenuated estimates of group level parameters, while the two-step approach depends upon estimates of science achievement that are shrunken as a function of measurement error.},
  year = {2007},
  date-added = {2010-01-19 23:27:00 +0100},
  date-modified = {2010-01-19 23:27:32 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Briggs-2007-_Using%20Explanatory%20It.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4095},
  rating = {0}
}
@article{Smits:2003a,
  author = {D J M Smits and Paul De Boeck},
  journal = {Multivariate Behavioral Research},
  title = {A Componential IRT Model for Guilt},
  number = {2},
  pages = {161--188},
  volume = {38},
  year = {2003},
  date-added = {2010-01-10 11:33:18 +0100},
  date-modified = {2010-07-29 20:46:12 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Smits-2003-Multivariate%20Behavioral%20Research_A%20Componential%20IRT%20M.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2032},
  rating = {0}
}
@article{DiazUriarte:2006p2575,
  author = {Ram{\'o}n D{\'\i}az-Uriarte and Sara Alvarez de Andr{\'e}s},
  journal = {BMC Bioinformatics},
  title = {Gene selection and classification of microarray data using random forest},
  abstract = {BACKGROUND: Selection of relevant genes for sample classification is a common task in most gene expression studies, where researchers try to identify the smallest possible set of genes that can still achieve good predictive performance (for instance, for future use with diagnostic purposes in clinical practice). Many gene selection approaches use univariate (gene-by-gene) rankings of gene relevance and arbitrary thresholds to select the number of genes, can only be applied to two-class problems, and use gene selection ranking criteria unrelated to the classification algorithm. In contrast, random forest is a classification algorithm well suited for microarray data: it shows excellent performance even when most predictive variables are noise, can be used when the number of variables is much larger than the number of observations and in problems involving more than two classes, and returns measures of variable importance. Thus, it is important to understand the performance of random forest with microarray data and its possible use for gene selection. RESULTS: We investigate the use of random forest for classification of microarray data (including multi-class problems) and propose a new method of gene selection in classification problems based on random forest. Using simulated and nine microarray data sets we show that random forest has comparable performance to other classification methods, including DLDA, KNN, and SVM, and that the new gene selection procedure yields very small sets of genes (often smaller than alternative methods) while preserving predictive accuracy. CONCLUSION: Because of its performance and features, random forest and gene selection using random forest should probably become part of the "standard tool-box" of methods for class prediction and gene selection with microarray data.},
  affiliation = {Bioinformatics Unit, Biotechnology Programme, Spanish National Cancer Centre (CNIO), Melchor Fernandez Almagro 3, Madrid, 28029, Spain. rdiaz@ligarto.org},
  pages = {3},
  volume = {7},
  year = {2006},
  month = {Jan},
  language = {eng},
  keywords = {Computer Simulation, Gene Expression Profiling, Algorithms, Oligonucleotide Array Sequence Analysis, Models: Statistical, Models: Genetic, Cluster Analysis, Pattern Recognition: Automated},
  date-added = {2010-01-12 22:23:40 +0100},
  date-modified = {2010-07-29 20:21:27 +0200},
  doi = {10.1186/1471-2105-7-3},
  pii = {1471-2105-7-3},
  pmid = {16398926},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/D%C3%ADaz-Uriarte-2006-BMC%20Bioinformatics_Gene%20selection%20and%20c.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2575},
  rating = {0}
}
@article{Holman:2005p2768,
  author = {R Holman and C A W Glas},
  journal = {British Journal of Mathematical {\&} Statistical Psychology},
  title = {Modelling non-ignorable missing-data mechanisms with item response theory models},
  abstract = {A model-based procedure for assessing the extent to which missing data can be ignored and handling non-ignorable missing data is presented. The procedure is based on item response theory modelling. As an example, the approach is worked out in detail in conjunction with item response data modelled using the partial credit and generalized partial credit models. Simulation studies are carried out to assess the extent to which the bias caused by ignoring the missing-data mechanism can be reduced. Finally, the feasibility of the procedure is demonstrated using data from a study to calibrate a medical disability scale.},
  affiliation = {Department of Clinical Epidemiology and Biostatistics, Amsterdam Medical Center, The Netherlands},
  pages = {1--17},
  volume = {58},
  year = {2005},
  date-added = {2010-01-13 14:24:48 +0100},
  date-modified = {2010-07-29 19:22:12 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Holman-2005-British%20Journal%20of%20Mathematical%20&%20Statistical%20Psychology_Modelling%20non-ignora.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2768},
  rating = {0}
}
@article{Dolan:1998p11421,
  author = {C V Dolan and H J van der Maas},
  journal = {Psychometrika},
  title = {Fitting multivariate normal finite mixtures subject to structural equation modeling},
  abstract = {This paper is about fitting multivariate normal mixture distributions subject to structural equation modeling. The general model comprises commonfactor and structural regression models. The introduction of covariance and meanstructure models reduces the numberof parameters to be estimated in fitting the mixture and enables one to investigate a variety of substantive hypotheses concerning the differences between the components in the mixture. Within the general model, individual parameters can be subjected to equality, nonlinear and simple bounds constraints. Confidenceintervals are based on the inverse of the Hessian and on the likelihood profile. Several illustrations	are given and results	of a simulation study concerning the confidence intervals	are reported.},
  number = {3},
  pages = {227--253},
  volume = {63},
  year = {1998},
  date-added = {2010-05-01 16:47:04 +0200},
  date-modified = {2010-05-01 16:50:53 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Dolan-1998-Psychometrika_Fitting%20multivariate.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11421},
  rating = {0}
}
@article{Johnson:2002p11465,
  author = {Wendy Johnson and Robert F Krueger and Thomas J Bouchard and Matt McGue},
  journal = {Twin Res},
  title = {The personalities of twins: just ordinary folks},
  abstract = {Twin studies have demonstrated that personality traits show moderate genetic influence. The conclusions drawn from twin studies rely on the assumptions that twins are representative of the population at large and that monozygotic and dizygotic twins are comparable in every way that might have bearing on the traits being studied. To evaluate these assumptions, we used Multidimensional Personality Questionnaire (MPQ) data from three samples drawn from the Minnesota Twin Registry (totaling 12,971 respondents) to examine the effect sizes associated with mean differences on the 11 MPQ scales and 3 higher-order MPQ factors for singletons versus twins and MZ twins versus DZ twins. The singletons in the samples were family members of the participating twins. We also used ratios of scale variances to examine the significance of variance differences. The only mean or variance difference replicated across all three samples was greater Social Closeness (about.1 standard deviation) for twins than for singletons. This difference was obtained for both males and females. It would appear that, with respect to personality, twins are not systematically different from other people. Our results also highlight the importance of replication in psychological research because each of our large samples showed differences not replicated in other samples.},
  affiliation = {University of Minnesota, Twin Cities, Minnetonka, MN 55391, USA. john4350@tc.umn.edu},
  number = {2},
  pages = {125--31},
  volume = {5},
  year = {2002},
  month = {Apr},
  language = {eng},
  keywords = {Male, Female, Analysis of Variance, Personality, Questionnaires, Twins, Personality Assessment, Twins: Monozygotic, Humans, Twins: Dizygotic},
  date-added = {2010-05-01 17:23:50 +0200},
  date-modified = {2010-05-01 17:23:50 +0200},
  doi = {10.1375/1369052022992},
  pmid = {11931690},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11465},
  rating = {0}
}
@article{Legendre:2010p5008,
  author = {P Legendre},
  journal = {Encyclopedia of Research Design},
  title = {Coefficient of concordance},
  year = {2010},
  date-added = {2010-02-05 00:09:33 +0100},
  date-modified = {2010-02-05 00:10:05 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Legendre-2010-Encyclopedia%20of%20Research%20Design_Coefficient%20of%20conco.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5008},
  rating = {0}
}
@article{Meuleners:2003p6626,
  author = {Lynn B Meuleners and Andy H Lee and Colin W Binns and Anthony Lower},
  journal = {Qual Life Res},
  title = {Quality of life for adolescents: assessing measurement properties using structural equation modelling},
  abstract = {Assessments for quality of life (QOL) of the adolescent have received relatively little attention in the literature. Although there is no consensus on the definition of adolescent QOL and what aspects should be measured, it is generally accepted that QOL is a multidimensional construct. The objective of this study is to determine the measurement properties of the latent factors underlying adolescent QOL based on a second-order confirmatory factor analysis (CFA). A recursive structural equation model (SEM) is then proposed to determine the direction and magnitude of the interdependent effects among the latent factors. The questionnaire used was the Quality of Life Profile-Adolescent Version (QOLPAV). A sample of 363 adolescents was recruited from 20 secondary schools in Perth, Australia. The second-order CFA suggested that adolescent QOL may be measured by five underlying constructs namely social, environment, psychological, health, and opportunities for growth. The interdependent relations among these constructs identified the environment factor as primary, exerting both direct and indirect effects on the other four factors.},
  affiliation = {School of Public Health, Curtin University of Technology, Perth, WA, Australia.},
  number = {3},
  pages = {283--90},
  volume = {12},
  year = {2003},
  month = {May},
  language = {eng},
  keywords = {Questionnaires, Factor Analysis: Statistical, Social Environment, Adolescent, Psychometrics, Self Assessment (Psychology), Humans, Western Australia, Quality of Life, Students, Attitude, Models: Psychological},
  date-added = {2010-03-03 20:33:31 +0100},
  date-modified = {2010-07-29 19:48:29 +0200},
  pmid = {12769141},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Meuleners-2003-Qual%20Life%20Res_Quality%20of%20life%20for.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6626},
  rating = {0}
}
@article{Steiger:1990p2431,
  author = {J H Steiger},
  journal = {Multivariate Behavioral Research},
  title = {Some additional thoughts on components, factors, and factor indeterminacy},
  number = {1},
  pages = {41--45},
  volume = {25},
  year = {1990},
  date-added = {2010-01-11 23:33:55 +0100},
  date-modified = {2010-01-11 23:37:58 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Steiger-1990-Multivariate%20Behavioral%20Research_Some%20additional%20thou.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2431},
  rating = {0}
}
@article{Dittrich:2005p14291,
  author = {R Dittrich and B Francis and R Hatzinger and W Katzenbeisser},
  title = {A Paired Comparison Approach for the Analysis of Sets of Likert Scale Responses},
  abstract = {This paper provides an alternative methodology for the analysis of a set of Likert responses measured on a common attitudinal scale when the primary focus of interest is on the relative importance of items in the set. The method makes fewer assumptions about the distribution of the responses than the more usual approaches such as comparisons of means, MANOVA or ordinal data methods. The approach transforms the Likert responses into paired comparison responses between the items. The complete multivariate pattern of responses thus produced can be analysed by an appropriately reformulated paired comparison model. The dependency structure between item responses can also be modelled flexibly. The advan- tage of this approach is that sets of Likert responses can be analysed simultaneously within the Generalized Linear Model framework, providing standard likelihood based inference for model selection. This method is applied to a recent international survey on the importance of environmental problems.},
  year = {2005},
  date-added = {2010-08-22 21:18:09 +0200},
  date-modified = {2010-08-22 21:19:40 +0200},
  url = {http://statmath.wu-wien.ac.at/},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Dittrich-2005-_A%20Paired%20Comparison.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p14291},
  rating = {0}
}
@article{McGinnis:2010p12456,
  author = {Ralph E McGinnis and Panos Deloukas and William M McLaren and Michael Inouye},
  journal = {Hum Mol Genet},
  title = {Visualizing chromosome mosaicism and detecting ethnic outliers by the method of "rare" heterozygotes and homozygotes (RHH)},
  abstract = {We describe a novel approach for evaluating SNP genotypes of a genome-wide association scan to identify "ethnic outlier" subjects whose ethnicity is different or admixed compared to most other subjects in the genotyped sample set. Each ethnic outlier is detected by counting a genomic excess of "rare" heterozygotes and/or homozygotes whose frequencies are low (<1%) within genotypes of the sample set being evaluated. This method also enables simple and striking visualization of non-Caucasian chromosomal DNA segments interspersed within the chromosomes of ethnically admixed individuals. We show that this visualization of the mosaic structure of admixed human chromosomes gives results similar to another visualization method (SABER) but with much less computational time and burden. We also show that other methods for detecting ethnic outliers are enhanced by evaluating only genomic regions of visualized admixture rather than diluting outlier ancestry by evaluating the entire genome considered in aggregate. We have validated our method in the Wellcome Trust Case Control Consortium (WTCCC) study of 17,000 subjects as well as in HapMap subjects and simulated outliers of known ethnicity and admixture. The method's ability to precisely delineate chromosomal segments of non-Caucasian ethnicity has enabled us to demonstrate previously unreported non-Caucasian admixture in two HapMap Caucasian parents and in a number of WTCCC subjects. Its sensitive detection of ethnic outliers and simple visual discrimination of discrete chromosomal segments of different ethnicity implies that this method of rare heterozygotes and homozygotes (RHH) is likely to have diverse and important applications in humans and other species.},
  affiliation = {Wellcome Trust Sanger Institute, Cambridge, UK. rm2@sanger.ac.uk},
  number = {13},
  pages = {2539--53},
  volume = {19},
  year = {2010},
  month = {Jul},
  language = {eng},
  date-added = {2010-06-15 17:34:23 +0200},
  date-modified = {2010-07-29 19:28:52 +0200},
  doi = {10.1093/hmg/ddq102},
  pii = {ddq102},
  pmid = {20211853},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/McGinnis-2010-Hum%20Mol%20Genet_Visualizing%20chromoso.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12456},
  rating = {0}
}
@article{Carvalho:2009p3287,
  author = {B Carvalho and T A Louis and R A Irizarry},
  journal = {Johns Hopkins University, Dept. of Biostatistics Working Papers},
  title = {Quantifying uncertainty in genotype calls},
  abstract = {Genome-wide association studies (GWAS) are used to discover genes underlying complex, heritable disorders for which less powerful study designs have failed in the past. The number of GWAS has skyrocketed recently with findings reported in top journals and the mainstream media. Mircorarrays are the genotype calling technology of choice in GWAS as they permit exploration of more than a million single nucleotide polymorphisms (SNPs)simultaneously. The starting point for the statistical analyses used by GWAS, to determine association between loci and disease, are genotype calls (AA, AB, or BB). However, the raw data, microarray probe intensities, are heavily processed before arriving at these calls. Various so- phisticated statistical procedures have been proposed for transforming raw data into genotype calls. We find that variability in microarray output quality across different SNPs, different arrays, and different sample batches has substantial in- uence on the accuracy of genotype calls made by existing algorithms. Failure to account for these sources of variability, GWAS run the risk of adversely affect- ing the quality of reported findings. In this paper we present solutions based on a multi-level mixed model. Software implementation of the method described in this paper is available as free and open source code in the crlmm R/BioConductor.},
  number = {180},
  year = {2009},
  date-added = {2010-01-14 21:18:48 +0100},
  date-modified = {2010-01-14 21:19:52 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Carvalho-2009-Johns%20Hopkins%20University%20Dept.%20of%20Biostatistics%20Working%20Papers_Quantifying%20uncertai.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3287},
  rating = {0}
}
@article{Revelle:1979,
  author = {W Revelle},
  journal = {Multivariate Behavioral Research},
  title = {Hierarchical Cluster Analysis and the Internal Structure of Tests},
  abstract = {Hierarchical cluster analysis is shown to be an effective method for forming scales from sets of items. Comparisons with factor analytic techniques suggest that hierarchical analysis is superior in some respects for scale construction},
  number = {1},
  pages = {57--74},
  volume = {14},
  year = {1979},
  date-added = {2010-01-03 19:38:21 +0100},
  date-modified = {2010-01-03 19:38:22 +0100},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1177},
  read = {Yes},
  rating = {0}
}
@article{Flieller:1994,
  author = {A Flieller},
  journal = {Math{\'e}matiques {\&} Sciences Humaines},
  title = {M{\'e}thodes d'{\'e}tude de l'ad{\'e}quation au mod{\`e}le logistique {\`a} un param{\`e}tre (mod{\`e}le de Rasch)},
  pages = {19--47},
  volume = {127},
  year = {1994},
  date-added = {2010-01-03 19:38:21 +0100},
  date-modified = {2010-07-29 19:39:20 +0200},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1134},
  read = {Yes},
  rating = {4}
}
@article{Varni:2007p8503,
  author = {James W Varni and Christine Limbers and Tasha M Burwinkle},
  journal = {J Pediatr Psychol},
  title = {Literature review: health-related quality of life measurement in pediatric oncology: hearing the voices of the children},
  abstract = {OBJECTIVES: The objective of this literature review is to provide an overview of the evidence for pediatric patient self-report in pediatric oncology. Methods A review of the general literature on pediatric health-related quality of life (HRQOL) measurement as background, with pediatric patient self-report data from the Journal of Pediatric Psychology during the past 5 years in pediatric oncology summarized. Utilizing the PedsQL available at (http://www.pedsql.org), data are presented to illustrate child and parent reports in pediatric oncology. Results Data demonstrate that children as young as 5 years of age can reliably and validly self-report their HRQOL when an age-appropriate instrument is utilized. Conclusions The evidence supports including pediatric patients' perspectives in clinical trials. Parent proxy-report is recommended when pediatric patients are too young, too cognitively impaired, too ill or fatigued to complete a HRQOL instrument, but not as a substitute for child self-report when the child is willing and able to provide their perspective.},
  affiliation = {College of Architecture, Texas A{\&}M University, 3137 TAMU, College Station, TX 77843-3137 USA. jvarni@archmail.tamu.edu},
  number = {9},
  pages = {1151--63},
  volume = {32},
  year = {2007},
  month = {Oct},
  language = {eng},
  keywords = {Humans, Quality of Life, Neoplasms, Health Status, Attitude to Health, Child},
  date-added = {2010-03-21 18:07:41 +0100},
  date-modified = {2010-07-29 19:35:17 +0200},
  doi = {10.1093/jpepsy/jsm008},
  pii = {jsm008},
  pmid = {17347186},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Varni-2007-J%20Pediatr%20Psychol_Literature%20review%20h.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8503},
  rating = {0}
}
@article{Simpson:2008p12566,
  author = {Helen Blair Simpson and Eva Petkova and Jianfeng Cheng and Jonathan Huppert and Edna Foa and Michael R Liebowitz},
  journal = {J Psychiatr Res},
  title = {Statistical choices can affect inferences about treatment efficacy: a case study from obsessive-compulsive disorder research},
  abstract = {Longitudinal clinical trials in psychiatry have used various statistical methods to examine treatment effects. The validity of the inferences depends upon the different method's assumptions and whether a given study violates those assumptions. The objective of this paper was to elucidate these complex issues by comparing various methods for handling missing data (e.g., last observation carried forward [LOCF], completer analysis, propensity-adjusted multiple imputation) and for analyzing outcome (e.g., end-point analysis, repeated-measures analysis of variance [RM-ANOVA], mixed-effects models [MEMs]) using data from a multi-site randomized controlled trial in obsessive-compulsive disorder (OCD). The trial compared the effects of 12 weeks of exposure and ritual prevention (EX/RP), clomipramine (CMI), their combination (EX/RP{\&}CMI) or pill placebo in 122 adults with OCD. The primary outcome measure was the Yale-Brown Obsessive Compulsive Scale. For most comparisons, inferences about the relative efficacy of the different treatments were impervious to different methods for handling missing data and analyzing outcome. However, when EX/RP was compared to CMI and when CMI was compared to placebo, traditional methods (e.g., LOCF, RM-ANOVA) led to different inferences than currently recommended alternatives (e.g., multiple imputation based on estimation-maximization algorithm, MEMs). Thus, inferences about treatment efficacy can be affected by statistical choices. This is most likely when there are small but potentially clinically meaningful treatment differences and when sample sizes are modest. The use of appropriate statistical methods in psychiatric trials can advance public health by ensuring that valid inferences are made about treatment efficacy.},
  affiliation = {Department of Psychiatry, Columbia University, USA. simpson@nyspi.cpmc.columbia.edu},
  number = {8},
  pages = {631--8},
  volume = {42},
  year = {2008},
  month = {Jul},
  language = {eng},
  keywords = {Obsessive-Compulsive Disorder, Research Design, Clomipramine, Choice Behavior, Adult, Combined Modality Therapy, Middle Aged, Serotonin Uptake Inhibitors, Aged, Cognitive Therapy, Randomized Controlled Trials as Topic, Statistics as Topic, Humans, Treatment Outcome, Outcome Assessment (Health Care), Longitudinal Studies, Placebos, Adolescent},
  date-added = {2010-06-15 22:19:50 +0200},
  date-modified = {2010-06-15 22:19:50 +0200},
  doi = {10.1016/j.jpsychires.2007.07.012},
  pii = {S0022-3956(07)00125-2},
  pmid = {17892885},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12566},
  rating = {0}
}
@article{Koene:2009p8864,
  author = {S Koene and T L Kozicz and R J T Rodenburg and C M Verhaak and M C de Vries and S Wortmann and L van de Heuvel and J A M Smeitink and E Morava},
  journal = {J Affect Disord},
  title = {Major depression in adolescent children consecutively diagnosed with mitochondrial disorder},
  abstract = {A higher incidence of major depression has been described in adults with a primary oxidative phosphorylation disease. Intriguingly however, not all patients carrying the same mutation develop symptoms of major depression, pointing out the significance of the interplay of genetic and non-genetic factors in the etiology. In a series of paediatric patients evaluated for mitochondrial dysfunction, out of 35 children with a biochemically and genetically confirmed mitochondrial disorder, we identified five cases presenting with major depression prior to the diagnosis. The patients were diagnosed respectively with mutations in MTTK, MTND1, POLG1, PDHA1 and the common 4977 bp mtDNA deletion. Besides cerebral lactic acidemia protein and glucose concentrations, immunoglobins, anti-gangliosides and neurotransmitters were normal. No significant difference could be confirmed in the disease progression or the quality of life, compared to the other, genetically confirmed mitochondrial patients. In three out of our five patients a significant stress life event was confirmed. We propose the abnormal central nervous system energy metabolism as the underlying cause of the mood disorder in our paediatric patients. Exploring the genetic etiology in children with mitochondrial dysfunction and depression is essential both for safe medication and adequate counselling.},
  affiliation = {Nijmegen Center for Mitochondrial Disorders, Department of Pediatrics, The Netherlands.},
  number = {1-3},
  pages = {327--32},
  volume = {114},
  year = {2009},
  month = {Apr},
  language = {eng},
  keywords = {Mitochondrial Diseases, Psychiatric Status Rating Scales, Phenotype, Depressive Disorder: Major, Sequence Deletion, Genetic Predisposition to Disease, Humans, Male, Adolescent, Magnetic Resonance Imaging, Child, Child: Preschool, DNA: Mitochondrial, Netherlands, Female, Genotype, Comorbidity},
  date-added = {2010-03-22 12:40:45 +0100},
  date-modified = {2010-07-29 19:31:26 +0200},
  doi = {10.1016/j.jad.2008.06.023},
  pii = {S0165-0327(08)00279-6},
  pmid = {18692904},
  url = {http://linkinghub.elsevier.com/retrieve/pii/S0165-0327(08)00279-6},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Koene-2009-J%20Affect%20Disord_Major%20depression%20in.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8864},
  rating = {0}
}
@article{Waaijenborg:2009p4011,
  author = {Sandra Waaijenborg and Aeilko H Zwinderman},
  journal = {BMC Proc},
  title = {Associating multiple longitudinal traits with high-dimensional single-nucleotide polymorphism data: application to the Framingham Heart Study},
  abstract = {ABSTRACT : Cardiovascular diseases are associated with combinations of phenotypic traits, which are in turn caused by a combination of environmental and genetic factors. Because of the diversity of pathways that may lead to cardiovascular diseases, we examined the so-called intermediate phenotypes, which are often repeatedly measured. We developed a penalized nonlinear canonical correlation analysis to associate multiple repeatedly measured traits with high-dimensional single-nucleotide polymorphism data.},
  affiliation = {Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Academic Medical Center, Amsterdam, PO Box 22700, 1100 DE, The Netherlands. s.waaijenborg@amc.uva.nl.},
  pages = {S47},
  volume = {3 Suppl 7},
  year = {2009},
  month = {Jan},
  language = {eng},
  date-added = {2010-01-18 14:59:18 +0100},
  date-modified = {2010-07-29 19:21:19 +0200},
  pmid = {20018039},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Waaijenborg-2009-BMC%20Proc_Associating%20multiple.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4011},
  rating = {0}
}
@article{Hirsh:2009p13859,
  author = {Jacob B Hirsh and Colin G DeYoung and Jordan B Peterson},
  journal = {J Pers},
  title = {Metatraits of the Big Five differentially predict engagement and restraint of behavior},
  abstract = {Although initially believed to contain orthogonal dimensions, the Big Five personality taxonomy appears to have a replicable higher-order structure, with the metatrait of Plasticity reflecting the shared variance between Extraversion and Openness/Intellect, and the metatrait of Stability reflecting the shared variance among Neuroticism, Agreeableness, and Conscientiousness. These higher order traits have been theorized to relate to individual differences in the functioning of the dopamine and serotonin systems, respectively. As dopamine is associated with exploration and incentive-related action, and serotonin with satiety and constraint, this neuropharmacological trait theory has behavioral implications, which we tested in 307 adults by examining the association of a large number of behavioral acts with multi-informant reports of the metatraits. The frequencies of acts were consistently positively correlated with Plasticity and negatively correlated with Stability. At the broadest level of description, variation in human personality appears to reflect engagement and restraint of behavior.},
  affiliation = {Department of Psychology, Sidney Smith Hall, University of Toronto, Toronto, ON M5S3G3, Canada. jacob.hirsh@utoronto.ca},
  number = {4},
  pages = {1085--102},
  volume = {77},
  year = {2009},
  month = {Aug},
  language = {eng},
  keywords = {Male, Internal-External Control, Self Concept, Psychometrics, Social Environment, Humans, Factor Analysis: Statistical, Reproducibility of Results, Personality, Extraversion (Psychology), Adult, Personality Assessment, Introversion (Psychology), Interpersonal Relations, Female},
  date-added = {2010-07-29 17:44:21 +0200},
  date-modified = {2010-07-29 17:44:22 +0200},
  doi = {10.1111/j.1467-6494.2009.00575.x},
  pii = {JOPY575},
  pmid = {19558442},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13859},
  rating = {0}
}
@article{Terwee:2007p7359,
  author = {Caroline B Terwee and Sandra D M Bot and Michael R de Boer and Dani{\"e}lle A W M van der Windt and Dirk L Knol and Joost Dekker and Lex M Bouter and Henrica C W de Vet},
  journal = {Journal of Clinical Epidemiology},
  title = {Quality criteria were proposed for measurement properties of health status questionnaires},
  abstract = {OBJECTIVES: Recently, an increasing number of systematic reviews have been published in which the measurement properties of health status questionnaires are compared. For a meaningful comparison, quality criteria for measurement properties are needed. Our aim was to develop quality criteria for design, methods, and outcomes of studies on the development and evaluation of health status questionnaires. STUDY DESIGN AND SETTING: Quality criteria for content validity, internal consistency, criterion validity, construct validity, reproducibility, longitudinal validity, responsiveness, floor and ceiling effects, and interpretability were derived from existing guidelines and consensus within our research group. RESULTS: For each measurement property a criterion was defined for a positive, negative, or indeterminate rating, depending on the design, methods, and outcomes of the validation study. CONCLUSION: Our criteria make a substantial contribution toward defining explicit quality criteria for measurement properties of health status questionnaires. Our criteria can be used in systematic reviews of health status questionnaires, to detect shortcomings and gaps in knowledge of measurement properties, and to design validation studies. The future challenge will be to refine and complete the criteria and to reach broad consensus, especially on quality criteria for good measurement properties.},
  affiliation = {EMGO Institute, VU University Medical Center, Van der Boechorststraat 7, 1081 BT Amsterdam, The Netherlands. cb.terwee@vumc.nl},
  number = {1},
  pages = {34--42},
  volume = {60},
  year = {2007},
  month = {Jan},
  language = {eng},
  keywords = {Reproducibility of Results, Review Literature as Topic, Humans, Psychometrics, Research Design, Questionnaires, Evaluation Studies as Topic, Health Status Indicators},
  date-added = {2010-03-10 20:29:15 +0100},
  date-modified = {2010-03-10 20:29:15 +0100},
  doi = {10.1016/j.jclinepi.2006.03.012},
  pii = {S0895-4356(06)00174-0},
  pmid = {17161752},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Terwee-2007-Journal%20of%20Clinical%20Epidemiology_Quality%20criteria%20wer.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7359},
  rating = {0}
}
@article{Nicodemus:2010p5844,
  author = {Kristin K Nicodemus and Joseph H Callicott and Rachel G Higier and Augustin Luna and Devon C Nixon and Barbara K Lipska and Radhakrishna Vakkalanka and Ina Giegling and Dan Rujescu and David St Clair and Pierandrea Muglia and Yin Yao Shugart and Daniel R Weinberger},
  journal = {Hum Genet},
  title = {Evidence of statistical epistasis between DISC1, CIT and NDEL1 impacting risk for schizophrenia: biological validation with functional neuroimaging},
  abstract = {The etiology of schizophrenia likely involves genetic interactions. DISC1, a promising candidate susceptibility gene, encodes a protein which interacts with many other proteins, including CIT, NDEL1, NDE1, FEZ1 and PAFAH1B1, some of which also have been associated with psychosis. We tested for epistasis between these genes in a schizophrenia case-control study using machine learning algorithms (MLAs: random forest, generalized boosted regression and Monte Carlo logic regression). Convergence of MLAs revealed a subset of seven SNPs that were subjected to 2-SNP interaction modeling using likelihood ratio tests for nested unconditional logistic regression models. Of the (7)C(2) = 21 interactions, four were significant at the alpha = 0.05 level: DISC1 rs1411771-CIT rs10744743 OR = 3.07 (1.37, 6.98) p = 0.007; CIT rs3847960-CIT rs203332 OR = 2.90 (1.45, 5.79) p = 0.003; CIT rs3847960-CIT rs440299 OR = 2.16 (1.04, 4.46) p = 0.038; one survived Bonferroni correction (NDEL1 rs4791707-CIT rs10744743 OR = 4.44 (2.22, 8.88) p = 0.00013). Three of four interactions were validated via functional magnetic resonance imaging (fMRI) in an independent sample of healthy controls; risk associated alleles at both SNPs predicted prefrontal cortical inefficiency during the N-back task, a schizophrenia-linked intermediate biological phenotype: rs3847960-rs440299; rs1411771-rs10744743, rs4791707-rs10744743 (SPM5 p < 0.05, corrected), although we were unable to statistically replicate the interactions in other clinical samples. Interestingly, the CIT SNPs are proximal to exons that encode the DISC1 interaction domain. In addition, the 3' UTR DISC1 rs1411771 is predicted to be an exonic splicing enhancer and the NDEL1 SNP is ~3,000 bp from the exon encoding the region of NDEL1 that interacts with the DISC1 protein, giving a plausible biological basis for epistasis signals validated by fMRI.},
  affiliation = {Genes, Cognition and Psychosis Program, Intramural Research Program, National Institute of Mental Health, National Institutes of Health, Room 4S-235, 10 Center Drive, Bethesda, MD, 20892, USA, kristin.nicodemus@well.ox.ac.uk.},
  pages = {},
  year = {2010},
  month = {Jan},
  language = {ENG},
  date-added = {2010-02-17 10:18:26 +0100},
  date-modified = {2010-07-29 19:28:44 +0200},
  doi = {10.1007/s00439-009-0782-y},
  pmid = {20084519},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Nicodemus-2010-Hum%20Genet_Evidence%20of%20statisti.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5844},
  rating = {0}
}
@article{Saavalainen:2006p8634,
  author = {Pia Saavalainen and Laila Luoma and Dermot Bowler and Tero Timonen and Sara M{\"a}{\"a}tt{\"a} and Eila Laukkanen and Eila Herrg{\aa}rd},
  journal = {Dev Med Child Neurol},
  title = {Naming skills of children born preterm in comparison with their term peers at the ages of 9 and 16 years},
  abstract = {The linguistic abilities of children born preterm at 32 weeks' gestation or earlier at Kuopio University Hospital during 1984 to 1986 were evaluated during successive phases of a prospective study. The study protocol included the Rapid Automatic Naming test and Wechsler Intelligence Scale for Children - Revised at 9 years of age and a modified Stroop Color-Word test and the Wechsler Intelligence Scale - Revised at the age of 16 years. Fifty-one children born preterm (26 males, 25 females) and 51 age-matched and sex-matched term controls (26 males, 25 females) were studied at the age of 9 years. At the age of 16 years, 40 children born preterm (19 males, 21 females) and 31 term controls (14 males, 17 females) participated in the study. The children born preterm scored significantly lower in two naming tasks than the controls at the age of 9 years. However, there was no difference between the study groups in naming skills at the age of 16 years or in verbal IQ in either study phase. Maternal education level was not associated with naming skills. Thus, the consequences of preterm birth seem to be minor in relation to linguistic skills during school age and diminish by adolescence.},
  affiliation = {Department of Psychology, University of Joensuu, Finland. pia.saavalainen@kuh.fi},
  number = {1},
  pages = {28--32},
  volume = {48},
  year = {2006},
  month = {Jan},
  language = {eng},
  keywords = {Child, Infant: Premature, Male, Prospective Studies, Intelligence Tests, Child Development, Semantics, Neuropsychological Tests, Female, Follow-Up Studies, Adolescent, Longitudinal Studies, Disability Evaluation, Humans, Educational Status, Infant: Newborn, Adolescent Development},
  date-added = {2010-03-22 00:27:05 +0100},
  date-modified = {2010-03-22 00:27:05 +0100},
  doi = {10.1017/S0012162206000077},
  pii = {S0012162206000077},
  pmid = {16359591},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Saavalainen-2006-Developmental%20medicine%20and%20child%20neurology_Naming%20skills%20of%20chi.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8634},
  rating = {0}
}
@article{Unalan:2008p5390,
  author = {Demet Unalan and Ferhan Soyuer and Ahmet Ozturk and Selcuk Mistik},
  journal = {Neurol India},
  title = {Comparison of SF-36 and WHOQOL-100 in patients with stroke},
  abstract = {BACKGROUND AND AIMS: Two widely used evaluation tools for the quality of life are the 36-item Short-Form Health Survey (SF-36) and World Health Organization Quality of Life Assessment (100-item version) (WHOQOL-100), however, these tools have not been compared for patients with stroke to date. The specific objectives of this study were: 1) to study the effect of stroke on quality of life (QOL) as measured by the SF-36 and by the WHOQOL-100, and 2) to compare these two instruments. SETTINGS AND DESIGN: Seventy patients who were admitted to the neurology clinic six months after stroke were included in this study. PATIENTS AND METHODS: As a data-collecting device, the SF-36 and WHOQOL-100 scales were used. An additional questionnaire was administered to obtain demographic data. STATISTICAL ANALYSIS: Pearson correlation analysis was performed and Blant-Altman Plots were used. Psychometric analysis was performed. RESULTS: In stroke, the most flustered domains of quality of life were vitality and general health perception fields in the SF-36 and in the WHOQL-100, independence level field, overall QOL and general health perceptions. While there was a fair degree of relationship (r= 0.25-0.50) between general health perceptions, physical, social and mental fields that were similar fields of scales, a fair and moderate to good relationship was found between different fields. Limits of agreement in similar domains of the two instruments were very large. In all four demonstrated Bland-Altman plots, there was agreement of the scales in the measurements of similar fields of quality of life. CONCLUSION: This study demonstrated that both the SF-36 and WHOQOL-100 quality of life scales are useful in the practical evaluation of patients with stroke.},
  affiliation = {Erciyes University Halil Bayraktar Health Services Vocational College, TR-38039, Kayseri, Turkey. dunalan@erciyes.edu.tr},
  number = {4},
  pages = {426--32},
  volume = {56},
  year = {2008},
  month = {Jan},
  language = {eng},
  keywords = {Aged, Young Adult, Stroke, Humans, Questionnaires, Middle Aged, Female, Reproducibility of Results, Male, Adult, Quality of Life},
  date-added = {2010-02-11 10:36:28 +0100},
  date-modified = {2010-02-11 10:36:28 +0100},
  pmid = {19127037},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5390},
  rating = {0}
}
@article{Pejtersen:2010p1515,
  author = {J H Pejtersen and J B Bjorner and P Hasle},
  journal = {Scandinavian Journal of Public Health},
  title = {Determining minimally important score differences in scales of the Copenhagen Psychosocial Questionnaire},
  abstract = {Aim: To determine minimally important differences (MIDs) for scales in the first version of the Copenhagen Psychosocial Questionnaire (COPSOQ). Methods: Data were taken from two separate studies: a national population survey (N 1⁄4 1062), and an intervention study at 14 workplaces (N 1⁄4 1505). On the basis of the population survey, the MID for each COPSOQ scale was calculated as one-half of a standard deviation (0.5 SD). For the core COPSOQ scales on ``Quantitative demands'', ``Influence at work'', ``Predictability'', ``Social support (from colleagues and supervisors, respectively)'', and ``Job satisfaction'', the MIDs were evaluated in the intervention study, where score differences for the scales were linked to the respondents' global self-evaluation of the impact of the interventions. The scales were scored from 0 to 100 in both studies. Results: The MIDs calculated as 0.5 SD were, on average, 9.2 (range 6.8--14.9) for the long version scales, and 10.8 (range 7.6--14.9) for the medium-length version scales. The analysis of the self-evaluated changes on the scale scores for the core COPSOQ scales showed that the anchor-based estimates of MID were generally lower than 0.5 SD. Conclusions: We recommend the following MID values for the COPSOQ scales: ``Quantitative demands'', 0.3 SD; ``Influence'', 0.2 SD; ``Predictability'', 0.3 SD; ``Social support from colleagues'', 0.3 SD; ``Social support from supervisor'', 0.7 SD; and ``Job satisfaction'', 0.4 SD. For all other COPSOQ scales, where we do not have anchor-based results, we recommend the conventional MID value of 0.5 SD.},
  affiliation = {National Research Centre for the Working Environment, Lers{\o} Parkalle ́ 105, DK 2100 Copenhagen, Denmark},
  pages = {33--41},
  volume = {38},
  year = {2010},
  keywords = {psychosocial factors, questionnaire, minimally important difference, Meaningful change, psychosocial work environment},
  date-added = {2010-01-07 12:43:09 +0100},
  date-modified = {2010-01-07 12:49:34 +0100},
  doi = {10.1177/1403494809347024},
  url = {http://sjp.sagepub.com/cgi/content/abstract/38/3_suppl/33},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Pejtersen-2010-Scandinavian%20Journal%20of%20Public%20Health_Determining%20minimall.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1515},
  rating = {0}
}
@article{Duncan:2010p4925,
  author = {C E Duncan and M J Webster and D A Rothmond and S Bahn and M Elashoff and C S Weickert},
  journal = {J Psychiatr Res},
  title = {Prefrontal GABAA receptor a-subunit expression in normal postnatal human development and schizophrenia},
  abstract = {Cortical GABA deficits that are consistently reported in schizophrenia may reflect an etiology of failed normal postnatal neurotransmitter maturation. Previous studies have found prefrontal cortical GABAA receptor a subunit alterations in schizophrenia, yet their relationship to normal developmental expres- sion profiles in the human cortex has not been determined. The aim of this study was to quantify GABAA receptor a-subunit mRNA expression patterns in human dorsolateral prefrontal cortex (DLPFC) during normal postnatal development and in schizophrenia cases compared to controls. Transcript levels of GABAA receptor a subunits were measured using microarray and qPCR analysis of 60 normal individuals aged 6 weeks to 49 years and in 37 patients with schizophrenia/schizoaffective disorder and 37 matched controls. We detected robust opposing changes in cortical GABAA receptor a1 and a5 subunits during the first few years of postnatal development, with a 60% decrease in a5 mRNA expression and a doubling of a1 mRNA expression with increasing age. In our Australian schizophrenia cohort we detected decreased GAD67 mRNA expression (p = 0.0012) and decreased a5 mRNA expression (p = 0.038) in the DLPFC with no significant change of other a subunits. Our findings confirm that GABA deficits (reduced GAD67) are a consistent feature of schizophrenia postmortem brain studies. Our study does not confirm alterations in cortical a1 or a2 mRNA levels in the schizophrenic DLPFC, as seen in previous studies, but instead we report a novel down-regulation of a5 subunit mRNA suggesting that post-synaptic alterations of inhibi- tory receptors are an important feature of schizophrenia but may vary between cohorts.},
  year = {2010},
  date-added = {2010-02-02 11:33:26 +0100},
  date-modified = {2010-07-29 19:35:54 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Duncan-2010-J%20Psychiatr%20Res_Prefrontal%20GABAA%20rec.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4925},
  rating = {0}
}
@article{Pan:2010p9847,
  author = {Yi Pan and Jingjing Gao and Michael Haber and Huiman X Barnhart},
  journal = {Computer methods and programs in biomedicine},
  title = {Estimation of coefficients of individual agreement (CIAs) for quantitative and binary data using SAS and R},
  abstract = {The coefficients of individual agreement (CIAs), which are based on the ratio of the intra- and inter-observer disagreement, provide a general approach for evaluating agreement between two fixed methods of measurements or human observers. In this paper, programs in both SAS and R are presented for estimation of the CIAs between two observers with quantitative or binary measurements. A detailed illustration of the computations, macro variable definitions, input and output for the SAS and R programs are also included in the text. The programs provide estimations of CIAs, their standard errors as well as confidence intervals, for the cases with or without a reference method. Data from a carotid stenosis screening study is used as an example of quantitative measurements. Data from a study involving the evaluation of mammograms by ten radiologists is used to illustrate a binary data example.},
  affiliation = {Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, 1518 Clifton Road NE, Atlanta, GA, 30322, United States.},
  pages = {},
  year = {2010},
  month = {Jan},
  language = {ENG},
  date-added = {2010-03-26 19:28:09 +0100},
  date-modified = {2010-03-26 19:28:58 +0100},
  doi = {10.1016/j.cmpb.2009.12.002},
  pii = {S0169-2607(09)00305-8},
  pmid = {20079947},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Pan-2010-Computer%20methods%20and%20programs%20in%20biomedicine_Estimation%20of%20coeffi.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p9847},
  rating = {4}
}
@article{Spiliotopoulou:2009p924,
  author = {Georgia Spiliotopoulou},
  journal = {Australian Occupational Therapy Journal},
  title = {Reliability reconsidered: Cronbach's alpha and paediatric assessment in occupational therapy},
  abstract = {Using reliable outcome measures is a necessity for the occupational therapy profession in enabling valid assessments of clients. Although Cronbach's alpha is the most widely applied index of internal consistency reliability, there are misconceptions about its use and interpretation. This paper aims to guide assessment developers in paediatric occupational therapy, as well as practitioners who are evaluating outcome measures in using and interpreting the Cronbach's alpha estimates appropriately. This will enable them to decide on the tools' clinical value and incorporate them into their practice with children. Method: 
Previously published papers reporting on internal consistency issues of outcome measures in paediatric occupational therapy were searched through the Allied and Complementary Medicine database. These papers were used as a basis to discuss possible reasons for reporting of low internal consistency. Results: 
The analysis demonstrates that Cronbach's alpha reports are not always interpreted in a sound way. The paper emphasises that one should be cautious about judging estimates of internal consistency. Low size of the coefficient alpha might not always indicate problems with the construction of the tool; whereas large sizes do not always suggest adequate reliability. Instead, these reports might be related to the data characteristics of the construct. Conclusion: 
In judging an outcome measure's internal consistency, researchers and practitioners in occupational therapy should report and consider the nature of data, the scale's length and width, the linearity and the normality of response distribution, the central response tendency, the sample response variability and the sample size.},
  affiliation = {School of Health Sciences and Social Care, Brunel University},
  number = {3},
  pages = {150--155},
  volume = {56},
  year = {2009},
  date-added = {2010-01-03 19:18:07 +0100},
  date-modified = {2010-01-03 19:19:24 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Spiliotopoulou-2009-Australian%20Occupational%20Therapy%20Journal_Reliability%20reconsid.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p924},
  rating = {0}
}
@article{Derks:2006p1340,
  author = {E M Derks and J J Hudziak and C E M van Beijsterveldt and C V Dolan and Dorret I Boomsma},
  journal = {Behav Genet},
  title = {Genetic analyses of maternal and teacher ratings on attention problems in 7-year-old Dutch twins},
  abstract = {The goal of the present study is to examine genetic and environmental influences on maternal and teacher ratings of Attention Problems (AP) in 7-year-old children. Teachers completed the Teacher Report Form (N=2259 pairs), and mothers the Child Behavior Checklist (N=2057 pairs). Higher correlations were found in twins rated by the same teacher than in twins rated by different teachers. This can be explained by rater bias or by a greater environmental sharing in twins, who are in the same classroom. We further found that 41% of the variation in maternal and teacher ratings is explained by a common factor. The heritability of this common factor is 78%. The heritabilities of the rater specific factors of mothers and teachers are 76% and 39%, respectively. Because Attention Problems that are persistent over situations may indicate more serious behavior problems than context dependent Attention Problems, we believe that gene finding strategies should focus on this common phenotype.},
  affiliation = {Department: Biological Psychology, Vrije Universiteit, Van der Boechorststraat 1, 1081 BT, Amsterdam, The Netherlands. em.derks@psy.vu.nl},
  number = {6},
  pages = {833--44},
  volume = {36},
  year = {2006},
  month = {Nov},
  language = {eng},
  keywords = {Mother-Child Relations, Models: Psychological, Models: Genetic, Attention, Twins: Dizygotic, Adult, Female, Teaching, Longitudinal Studies, Attention Deficit Disorder with Hyperactivity, Netherlands, Child, Humans, Twins: Monozygotic},
  date-added = {2010-01-07 11:41:29 +0100},
  date-modified = {2010-07-29 20:25:51 +0200},
  doi = {10.1007/s10519-006-9084-5},
  pmid = {16773450},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1340},
  rating = {0}
}
@article{Godart:2007p13992,
  author = {N T Godart and F Perdereau and Z Rein and S Berthoz and J Wallier and Ph Jeammet and M F Flament},
  journal = {J Affect Disord},
  title = {Comorbidity studies of eating disorders and mood disorders. Critical review of the literature},
  abstract = {OBJECTIVE: We conducted a critical literature review of studies assessing the prevalence of mood disorders (MD) in subjects with eating disorders (ED; anorexia nervosa and bulimia nervosa). In the first part of this article, we discuss methodological issues relevant to comorbidity studies between ED and MD. In the second part, we summarize the findings of these studies in light of the methodological considerations raised. METHOD: A manual computerised search (Medline) was performed for all published studies on comorbidity between ED and MD. In order to have sufficiently homogeneous diagnostic criteria for both categories of disorders, this search was limited to articles published between 1985 and 2006. RESULTS: Too few studies include control groups, few studies compared diagnostic subgroups of ED subjects, and results are scarce or conflicting. DISCUSSION: The results are discussed in the light of the methodological problems observed. The implications when reviewing the results of published studies and planning future research are set out.},
  affiliation = {Department of Psychiatry, Institut Mutualiste Montsouris (IMM), University, Ren{\'e} Descartes-Paris V, France. nathalie.godart@imm.fr},
  number = {1-3},
  pages = {37--49},
  volume = {97},
  year = {2007},
  month = {Jan},
  language = {eng},
  keywords = {Humans, Comorbidity, Mood Disorders, Bulimia Nervosa, Cross-Sectional Studies, Anorexia Nervosa},
  date-added = {2010-08-04 09:21:51 +0200},
  date-modified = {2010-08-04 09:21:51 +0200},
  doi = {10.1016/j.jad.2006.06.023},
  pii = {S0165-0327(06)00290-4},
  pmid = {16926052},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Godart-2007-J%20Affect%20Disord_Comorbidity%20studies.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13992},
  rating = {0}
}
@inbook{Schaeffer:1999,
  author = {NC Schaeffer},
  journal = {Book},
  title = {The science of self-report: Implications for research and practice},
  chapter = {Asking questions about threatening topics: A selective overview},
  pages = {105--122},
  year = {1999},
  date-added = {2010-01-03 19:34:17 +0100},
  date-modified = {2010-07-29 19:21:41 +0200},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p930},
  rating = {0}
}
@article{Persson:2000p11583,
  author = {M L Persson and D Wasserman and E G J{\"o}nsson and H Bergman and L Terenius and A Gyllander and J Neiman and T Geijer},
  journal = {Psychiatry Res},
  title = {Search for the influence of the tyrosine hydroxylase (TCAT)(n) repeat polymorphism on personality traits},
  abstract = {A putatively functional tetranucleotide repeat polymorphism in the tyrosine hydroxylase gene (TH) has been investigated with regard to different aspects of psychopathology. We investigated whether reported associations of this TH polymorphism may reflect associations with common personality traits. Personality was assessed by the NEO Personality Inventory-Revised version (NEO PI-R), in 205 healthy Caucasian volunteers. Tendencies for higher scores in the neuroticism (N) facets, Angry hostility (P=0.008) and Vulnerability (P=0.021), were observed among carriers of one of the alleles (T8). Healthy women with the T6/T10 genotype had significantly higher scores (P=0.001) in the Deliberation and Dutifulness facets (P=0.031) (the Conscientiousness dimension, C) and lower scores (P=0.031) in the Feelings facet (the Openness dimension, O). We concluded that: (1) higher mean scores in the Neuroticism facets among T8 allele carriers are consistent with previous data and warrants further research; (2) the T6/T10 genotype may influence personality among women; (3) these data should be cautiously interpreted in the absence of corroborating data.},
  affiliation = {Swedish National and Stockholm County Center for Suicide Research and Prevention, National Institute for Psychosocial Factors and Health, Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden. maj-liz.persson@neurotec.ki.se},
  number = {1},
  pages = {1--8},
  volume = {95},
  year = {2000},
  month = {Jul},
  language = {eng},
  keywords = {Alleles, Polymorphism: Genetic, Heterozygote Detection, Microsatellite Repeats, Personality, Gene Expression, Adult, Aged, Middle Aged, Tyrosine 3-Monooxygenase, Male, Personality Inventory, Humans, Psychometrics, Reference Values, Female},
  date-added = {2010-05-09 18:26:57 +0200},
  date-modified = {2010-05-09 18:27:01 +0200},
  pii = {S0165178100001608},
  pmid = {10904118},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Persson-2000-Psychiatry%20Res_Search%20for%20the%20influ.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11583},
  rating = {4}
}
@article{Jadad:1996,
  author = {AR Jadad and RA Moore and D et al Carroll},
  journal = {Controlled Clinical Trials},
  title = {Assessing the quality of reports of randomised clinical trials: is blinding necessary?},
  abstract = {It has been suggested that the quality of clinical trials should be assessed by blinded raters to limit the risk of introducing bias into meta-analyses and systematic reviews, and into the peer-review process. There is very little evidence in the literature to substantiate this. This study describes the development of an instrument to assess the quality of reports of randomized clinical trials (RCTs) in pain research and its use to determine the effect of rater blinding on the assessments of quality. A multidisciplinary panel of six judges produced an initial version of the instrument. Fourteen raters from three different backgrounds assessed the quality of 36 research reports in pain research, selected from three different samples. Seven were allocated randomly to perform the assessments under blind conditions. The final version of the instrument included three items. These items were scored consistently by all the raters regardless of background and could discriminate between reports from the different samples. Blind assessments produced significantly lower and more consistent scores than open assessments. The implications of this finding for systematic reviews, meta-analytic research and the peer-review process are discussed.},
  pages = {1--12},
  volume = {17},
  year = {1996},
  date-added = {2010-01-03 19:36:10 +0100},
  date-modified = {2010-01-03 19:36:10 +0100},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1050},
  rating = {0}
}
@article{Cookson:2009p2730,
  author = {William Cookson and Liming Liang and Gon{\c c}alo R Abecasis and Miriam Moffatt and Mark Lathrop},
  journal = {Nat Rev Genet},
  title = {Mapping complex disease traits with global gene expression},
  abstract = {Variation in gene expression is an important mechanism underlying susceptibility to complex disease. The simultaneous genome-wide assay of gene expression and genetic variation allows the mapping of the genetic factors that underpin individual differences in quantitative levels of expression (expression QTLs; eQTLs). The availability of systematically generated eQTL information could provide immediate insight into a biological basis for disease associations identified through genome-wide association (GWA) studies, and can help to identify networks of genes involved in disease pathogenesis. Although there are limitations to current eQTL maps, understanding of disease will be enhanced with novel technologies and international efforts that extend to a wide range of new samples and tissues.},
  affiliation = {National Heart and Lung Institute, Imperial College London, London SW3 6LY, UK. w.cookson@imperial.ac.uk},
  number = {3},
  pages = {184--94},
  volume = {10},
  year = {2009},
  month = {Mar},
  language = {eng},
  keywords = {Genome-Wide Association Study, Disease, Humans, Animals, Genetic Variation, Quantitative Trait Loci},
  date-added = {2010-01-13 14:19:54 +0100},
  date-modified = {2010-07-29 20:14:14 +0200},
  doi = {10.1038/nrg2537},
  pii = {nrg2537},
  pmid = {19223927},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Cookson-2009-Nat%20Rev%20Genet_Mapping%20complex%20dise.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2730},
  rating = {0}
}
@article{Jakobsson:2008p3423,
  author = {Mattias Jakobsson and Sonja W Scholz and Paul Scheet and J Raphael Gibbs and Jenna M VanLiere and Hon-Chung Fung and Zachary A Szpiech and James H Degnan and Kai Wang and Rita Guerreiro and Jose M Bras and Jennifer C Schymick and Dena G Hernandez and Bryan J Traynor and Javier Simon-Sanchez and Mar Matarin and Angela Britton and Joyce van de Leemput and Ian Rafferty and Maja Bucan and Howard M Cann and John A Hardy and Noah A Rosenberg and Andrew B Singleton},
  journal = {Nature},
  title = {Genotype, haplotype and copy-number variation in worldwide human populations},
  abstract = {Genome-wide patterns of variation across individuals provide a powerful source of data for uncovering the history of migration, range expansion, and adaptation of the human species. However, high-resolution surveys of variation in genotype, haplotype and copy number have generally focused on a small number of population groups. Here we report the analysis of high-quality genotypes at 525,910 single-nucleotide polymorphisms (SNPs) and 396 copy-number-variable loci in a worldwide sample of 29 populations. Analysis of SNP genotypes yields strongly supported fine-scale inferences about population structure. Increasing linkage disequilibrium is observed with increasing geographic distance from Africa, as expected under a serial founder effect for the out-of-Africa spread of human populations. New approaches for haplotype analysis produce inferences about population structure that complement results based on unphased SNPs. Despite a difference from SNPs in the frequency spectrum of the copy-number variants (CNVs) detected--including a comparatively large number of CNVs in previously unexamined populations from Oceania and the Americas--the global distribution of CNVs largely accords with population structure analyses for SNP data sets of similar size. Our results produce new inferences about inter-population variation, support the utility of CNVs in human population-genetic research, and serve as a genomic resource for human-genetic studies in diverse worldwide populations.},
  affiliation = {Center for Computational Medicine and Biology, University of Michigan, Ann Arbor, Michigan 48109, USA.},
  number = {7181},
  pages = {998--1003},
  volume = {451},
  year = {2008},
  month = {Feb},
  language = {eng},
  keywords = {Haplotypes, Genetics: Population, Linkage Disequilibrium, Alleles, Polymorphism: Single Nucleotide, Gene Dosage, Geography, Africa, Humans, Chromosomes: Human: Pair 2, Genome: Human, Genetic Variation},
  date-added = {2010-01-15 15:13:44 +0100},
  date-modified = {2010-07-29 19:40:35 +0200},
  doi = {10.1038/nature06742},
  pii = {nature06742},
  pmid = {18288195},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Jakobsson-2008-Nature_Genotype%20haplotype.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3423},
  read = {Yes},
  rating = {0}
}
@article{Constantino:2002p12159,
  author = {John N Constantino and C Robert Cloninger and Adrian R Clarke and Bahar Hashemi and Thomas Przybeck},
  journal = {Psychiatry Res},
  title = {Application of the seven-factor model of personality to early childhood},
  abstract = {The seven-factor model of personality developed by Cloninger and colleagues describes personality as a function of developmental aspects of character superimposed on heritable dimensions of temperament. The objective of this study was to determine whether this model could be applied to early childhood. We tested a preschool version of the Temperament and Character Inventory (the preschool TCI) in 305 children aged 2-5 years. Exploratory factor analysis provided support for the presence of distinct domains of temperament (comprising four factors) and character (comprising three factors). The preschool TCI demonstrated high internal consistency for each of the seven factors (Cronbach's alpha values: 0.70-0.93). Inter-individual differences in novelty seeking, reward dependence and cooperativeness were highly preserved (Pearson's r values 0.75, 0.64 and 0.80, respectively) in 29 subjects who were studied over a 3-year period from toddlerhood to early school age. Future studies are warranted to test the extent to which early childhood measurements of the seven factors might predict the development of personality disorders.},
  affiliation = {Department of Psychiatry, Washington University School of Medicine, Campus Box 8134, 660 South Euclid Ave., Saint Louis, MO 63110, USA. constantino@psychiatry.wustl.edu},
  number = {3},
  pages = {229--43},
  volume = {109},
  year = {2002},
  month = {Apr},
  language = {eng},
  keywords = {Longitudinal Studies, Humans, Male, Character, Personality Development, Child: Preschool, Personality Assessment, Psychometrics, Reproducibility of Results, Temperament, Individuality, Female},
  date-added = {2010-05-30 10:41:40 +0200},
  date-modified = {2010-05-30 10:41:47 +0200},
  pii = {S0165178102000082},
  pmid = {11959360},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Constantino-2002-Psychiatry%20Res_Application%20of%20the%20s.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12159},
  rating = {4}
}
@article{Rainer:2006p1558,
  author = {Johannes Rainer and Fatima Sanchez-Cabo and Gernot Stocker and Alexander Sturn and Zlatko Trajanoski},
  journal = {Nucleic Acids Res},
  title = {CARMAweb: comprehensive R- and bioconductor-based web service for microarray data analysis},
  abstract = {CARMAweb (Comprehensive R-based Microarray Analysis web service) is a web application designed for the analysis of microarray data. CARMAweb performs data preprocessing (background correction, quality control and normalization), detection of differentially expressed genes, cluster analysis, dimension reduction and visualization, classification, and Gene Ontology-term analysis. This web application accepts raw data from a variety of imaging software tools for the most widely used microarray platforms: Affymetrix GeneChips, spotted two-color microarrays and Applied Biosystems (ABI) microarrays. R and packages from the Bioconductor project are used as an analytical engine in combination with the R function Sweave, which allows automatic generation of analysis reports. These report files contain all R commands used to perform the analysis and guarantee therefore a maximum transparency and reproducibility for each analysis. The web application is implemented in Java based on the latest J2EE (Java 2 Enterprise Edition) software technology. CARMAweb is freely available at https://carmaweb.genome.tugraz.at.},
  affiliation = {Institute for Genomics and Bioinformatics, Graz University of Technology, Petersgasse 14, 8010 Graz, Austria.},
  number = {Web Server issue},
  pages = {W498--503},
  volume = {34},
  year = {2006},
  month = {Jul},
  language = {eng},
  keywords = {Internet, Gene Expression Profiling, Vocabulary: Controlled, Cluster Analysis, User-Computer Interface, Software, Oligonucleotide Array Sequence Analysis, Computer Graphics},
  date-added = {2010-01-07 16:44:21 +0100},
  date-modified = {2010-01-07 16:44:21 +0100},
  doi = {10.1093/nar/gkl038},
  pii = {34/suppl_2/W498},
  pmid = {16845058},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Rainer-2006-Nucleic%20Acids%20Res_CARMAweb%20comprehens.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1558},
  rating = {0}
}
@article{Ayotte:2009p4741,
  author = {Brian J Ayotte and Ranak Trivedi and Hayden B Bosworth},
  journal = {Ethn Dis},
  title = {Racial differences in hypertension knowledge: effects of differential item functioning},
  abstract = {Health-related knowledge is an important component in the self-management of chronic illnesses. The objective of this study was to more accurately assess racial differences in hypertension knowledge by using a latent variable modeling approach that controlled for sociodemographic factors and accounted for measurement issues in the assessment of hypertension knowledge. Cross-sectional data from 1,177 participants (45% African American; 35% female) were analyzed using a multiple indicator multiple causes (MIMIC) modeling approach. Available sociodemographic data included race, education, sex, financial status, and age. All participants completed six items on a hypertension knowledge questionnaire. Overall, the final model suggested that females, Whites, and patients with at least a high school diploma had higher latent knowledge scores than males, African Americans, and patients with less than a high school diploma, respectively. The model also detected differential item functioning (DIF) based on race for two of the items. Specifically, the error rate for African Americans was lower than would be expected given the lower level of latent knowledge on the items, on the questions related to: (a) the association between high blood pressure and kidney disease, and (b) the increased risk African Americans have for developing hypertension. Not accounting for DIF resulted in the difference between Whites and African Americans to be underestimated. These results are discussed in the context of the need for careful measurement of health-related constructs, and how measurement-related issues can result in an inaccurate estimation of racial differences in hypertension knowledge.},
  affiliation = {Center for Health Services Research in Primary Care, VA Medical Center (152), 508 Fulton St; Durham, NC 27705, USA. brian.ayotte@duke.edu},
  number = {1},
  pages = {23--7},
  volume = {19},
  year = {2009},
  month = {Apr},
  language = {eng},
  keywords = {Hypertension, Cross-Sectional Studies, Middle Aged, Educational Status, Aged: 80 and over, Humans, Sex Factors, Models: Statistical, Aged, European Continental Ancestry Group, Male, Young Adult, African Americans, Female, Questionnaires, Health Knowledge: Attitudes: Practice, Adult},
  date-added = {2010-02-01 11:35:34 +0100},
  date-modified = {2010-02-01 11:35:34 +0100},
  pmid = {19341159},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Ayotte-2009-Ethn%20Dis_Racial%20differences%20i.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4741},
  rating = {0}
}
@article{Kosinski:2006p7356,
  author = {Mark Kosinski and Jakob B Bjorner and John E Ware and Elizabeth Sullivan and Walter L Straus},
  journal = {Journal of Clinical Epidemiology},
  title = {An evaluation of a patient-reported outcomes found computerized adaptive testing was efficient in assessing osteoarthritis impact},
  abstract = {BACKGROUND AND OBJECTIVES: Evaluate a patient-reported outcomes questionnaire that uses computerized adaptive testing (CAT) to measure the impact of osteoarthritis (OA) on functioning and well-being. MATERIALS AND METHODS: OA patients completed 37 questions about the impact of OA on physical, social and role functioning, emotional well-being, and vitality. Questionnaire responses were calibrated and scored using item response theory, and two scores were estimated: a Total-OA score based on patients' responses to all 37 questions, and a simulated CAT-OA score where the computer selected and scored the five most informative questions for each patient. Agreement between Total-OA and CAT-OA scores was assessed using correlations. Discriminant validity of Total-OA and CAT-OA scores was assessed with analysis of variance. Criterion measures included OA pain and severity, patient global assessment, and missed work days. RESULTS: Simulated CAT-OA and Total-OA scores correlated highly (r = 0.96). Both Total-OA and simulated CAT-OA scores discriminated significantly between patients differing on the criterion measures. F-statistics across criterion measures ranged from 39.0 (P < .001) to 225.1 (P < .001) for the Total-OA score, and from 40.5 (P < .001) to 221.5 (P < .001) for the simulated CAT-OA score. CONCLUSIONS: CAT methods produce valid and precise estimates of the impact of OA on functioning and well-being with significant reduction in response burden.},
  affiliation = {QualityMetric Incorporated, 640 George Washington Highway, Lincoln, RI 02865, USA. mkosinski@qualitymetric.com},
  number = {7},
  pages = {715--23},
  volume = {59},
  year = {2006},
  month = {Jul},
  language = {eng},
  keywords = {Osteoarthritis, Sickness Impact Profile, Adaptation: Psychological, Quality of Life, User-Computer Interface, Humans, Disability Evaluation, Treatment Outcome, Questionnaires},
  date-added = {2010-03-10 20:27:46 +0100},
  date-modified = {2010-03-10 20:27:46 +0100},
  doi = {10.1016/j.jclinepi.2005.07.019},
  pii = {S0895-4356(06)00010-2},
  pmid = {16765275},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Kosinski-2006-Journal%20of%20Clinical%20Epidemiology_An%20evaluation%20of%20a%20p.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7356},
  rating = {0}
}
@article{Overbeek:2010p11533,
  author = {Geertjan Overbeek and Ad Vermulst and Ron de Graaf and Margreet ten Have and Rutger Engels and Ron Scholte},
  journal = {J Psychiatr Res},
  title = {Positive life events and mood disorders: Longitudinal evidence for an erratic lifecourse hypothesis},
  abstract = {BACKGROUND: An unresolved issue in psychiatry research concerns the assumption that detrimental effects of negative life events on mental health may be buffered by a multitude of positive life events. However, there is clear lack of empirical evidence for this assumption, and one may even argue that positive life events act as additional stressors and thus increase (and not decrease) the risk for affective disorders. METHODS: Data were used from 4796 adults aged 18-64, who participated in 2 waves (i.e., 1997 and 1999) of NEMESIS, a prospective-epidemiological study. Measures were based on diagnoses of DSM-III-R mood disorders, and a life events questionnaire employed in the NEMESIS study. RESULTS: Although the prevalence of mood disorders correlated positively with both the number of negative and positive life events experienced, a multivariate path analysis (Mplus) demonstrated that only negative life events longitudinally predicted mood disorders. Positive life events predicted subsequent mood disorders only when in the same time period a high number of negative events were experienced. CONCLUSIONS: Positive life events do not buffer the detrimental impact of negative ones, but instead may function as additional stressor, in the context of highly erratic life course patterns that may be typical for depressed individuals.},
  affiliation = {Department of Developmental Psychology, Utrecht University, PO Box 80140, 3508 TC Utrecht, The Netherlands.},
  pages = {},
  year = {2010},
  month = {Apr},
  language = {ENG},
  date-added = {2010-05-01 17:35:54 +0200},
  date-modified = {2010-05-01 17:35:54 +0200},
  doi = {10.1016/j.jpsychires.2010.03.019},
  pii = {S0022-3956(10)00095-6},
  pmid = {20427054},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Overbeek-2010-J%20Psychiatr%20Res_Positive%20life%20events.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11533},
  rating = {0}
}
@article{Lopes:2004p6288,
  author = {H F Lopes and M West},
  journal = {Statistica Sinica},
  title = {BAYESIAN MODEL ASSESSMENT IN FACTOR ANALYSIS},
  abstract = {Factor analysis has been one of the most powerful and flexible tools for assessment of multivariate dependence and codependence. Loosely speaking, it could be argued that the origin of its success rests in its very exploratory nature, where various kinds of data-relationships amongst the variables at study can be iteratively verified and/or refuted. Bayesian inference in factor analytic models has received renewed attention in recent years, partly due to computational advances but also partly to applied focuses generating factor structures as exemplified by recent work in financial time series modeling. The focus of our current work is on exploring questions of uncertainty about the number of latent factors in a multi- variate factor model, combined with methodological and computational issues of model specification and model fitting. We explore reversible jump MCMC methods that build on sets of parallel Gibbs sampling-based analyses to generate suitable empirical proposal distributions and that address the challenging problem of finding efficient proposals in high-dimensional models. Alternative MCMC methods based on bridge sampling are discussed, and these fully Bayesian MCMC approaches are compared with a collection of popular model selection methods in empirical stud- ies. Various additional computational issues are discussed, including situations where prior information is scarce, and the methods are explored in studies of some simulated data sets and an econometric time series example.},
  pages = {41--67},
  volume = {14},
  year = {2004},
  date-added = {2010-02-20 19:59:07 +0100},
  date-modified = {2010-02-20 19:59:46 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Lopes-2004-Statistica%20Sinica_BAYESIAN%20MODEL%20ASSES.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6288},
  rating = {0}
}
@article{Sutter:1997p12120,
  author = {A L Sutter and V Leroy and D Dallay and H Verdoux and M Bourgeois},
  journal = {J Affect Disord},
  title = {Post-partum blues and mild depressive symptomatology at days three and five after delivery, A French cross sectional study},
  abstract = {This cross-sectional work studies the prevalence of post-partum blues on days 3 and 5 after delivery and the links between post-partum blues and depressive symptomatology, using standardised interviews and rating scales (Kennerley and Gath Blues Scale. MADRS) to screen a consecutive series of 104 women on days three and five after a normal delivery. This study stresses the possibility of a difference between the symptomatology of a benign "classical" post-partum blues, and that of a more intense blues closer to the spectrum of depressive mood disorders and perhaps post-natal depression.},
  affiliation = {IPSO, Bordeaux, France.},
  number = {1},
  pages = {1--4},
  volume = {44},
  year = {1997},
  month = {Jun},
  language = {eng},
  keywords = {Female, Incidence, Depressive Disorder, Retrospective Studies, Humans, France, Cross-Sectional Studies, Puerperal Disorders},
  date-added = {2010-05-30 10:01:52 +0200},
  date-modified = {2010-05-30 10:01:53 +0200},
  pii = {S0165-0327(97)01440-7},
  pmid = {9186796},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12120},
  rating = {0}
}
@article{BarnholtzSloan:2003p10249,
  author = {Jill S Barnholtz-Sloan and Laila M Poisson and Steven W Coon and Gary A Chase and Benjamin A Rybicki},
  journal = {BMC Genet},
  title = {Analysis of gene x environment interactions in sibships using mixed models},
  abstract = {BACKGROUND: Gene x environment models are widely used to assess genetic and environmental risks and their association with a phenotype of interest for many complex diseases. Mixed generalized linear models were used to assess gene x environment interactions with respect to systolic blood pressure on sibships adjusting for repeated measures and hierarchical nesting structures. A data set containing 410 sibships from the Framingham Heart Study offspring cohort (part of the Genetic Analysis Workshop 13 data) was used for all analyses. Three mixed gene x environment models, all adjusting for repeated measurement and varying levels of nesting, were compared for precision of estimates: 1) all sibships with adjustment for two levels of nesting (sibs within sibships and sibs within pedigrees), 2) all sibships with adjustment for one level of nesting (sibs within sibships), and 3) 100 data sets containing random draws of one sibship per extended pedigree adjusting for one level of nesting. RESULTS: The main effects were: gender, baseline age, body mass index (BMI), hypertensive treatment, cigarettes per day, grams of alcohol per day, and marker GATA48G07A. The interaction fixed effects were: baseline age by gender, baseline age by cigarettes per day, baseline age by hypertensive treatment, baseline age by BMI, hypertensive treatment by BMI, and baseline age by marker GATA48G07A. The estimates for all three nesting techniques were not widely discrepant, but precision of estimates and determination of significant effects did change with the change in adjustment for nesting. CONCLUSION: Our results show the importance of the adjustment for all levels of hierarchical nesting of sibs in the presence of repeated measures.},
  affiliation = {Department of Internal Medicine (Oncology), Wayne State University School of Medicine and Karmanos Cancer Institute, 110 East Warren, Detroit, Michigan, USA. jbsloan@med.wayne.edu},
  pages = {S18},
  volume = {4 Suppl 1},
  year = {2003},
  month = {Jan},
  language = {eng},
  keywords = {Cohort Studies, Female, Systole, Siblings, Male, Adult Children, Models: Statistical, Environment, Genetic Markers, Humans, Phenotype, Blood Pressure},
  date-added = {2010-04-02 10:52:40 +0200},
  date-modified = {2010-04-02 10:52:40 +0200},
  doi = {10.1186/1471-2156-4-S1-S18},
  pii = {1471-2156-4-S1-S18},
  pmid = {14975086},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Barnholtz-Sloan-2003-BMC%20Genet_Analysis%20of%20gene%20x%20e.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p10249},
  rating = {0}
}
@article{Breiman:2001p539,
  author = {Leo Breiman},
  journal = {Machine Learning},
  title = {Random Forests},
  abstract = {Random forests are a combination of tree predictors such that each tree depends on the values of a random vector sampled independently and with the same distribution for all trees in the forest. The generalization error for forests converges a.s. to a limit as the number of trees in the forest becomes large. The generalization error of a forest of tree classifiers depends on the strength of the individual trees in the forest and the correlation between them. Using a random selection of features to split each node yields error rates that compare favorably to Adaboost (Y. Freund {\&} R. Schapire, Machine Learning: Proceedings of the Thirteenth International conference, ∗ ∗ ∗, 148--156), but are more robust with respect to noise. Internal estimates monitor error, strength, and correlation and these are used to show the response to increasing the number of features used in the splitting. Internal estimates are also used to measure variable importance. These ideas are also applicable to regression.},
  affiliation = {Statistics Department, University of California, Berkeley, CA 94720},
  pages = {5--32},
  volume = {45},
  year = {2001},
  keywords = {classification, regression, ensemble},
  date-added = {2010-01-03 14:02:39 +0100},
  date-modified = {2010-01-03 14:04:20 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Breiman-2001-Machine%20Learning_Random%20Forests.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p539},
  read = {Yes},
  rating = {0}
}
@article{Lewi:2007p11603,
  author = {P J Lewi and A Smith},
  journal = {R{\&}D Management},
  title = {Successful Pharmaceutical Discovery: Paul Janssen's Concept of Drug Research},
  year = {2007},
  date-added = {2010-05-09 21:37:39 +0200},
  date-modified = {2010-05-09 21:38:13 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Lewi-2007-R&D%20Management_Successful%20Pharmaceu.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11603},
  rating = {0}
}
@article{Birbeck:2000p7344,
  author = {G L Birbeck and S Kim and R D Hays and B G Vickrey},
  journal = {Neurology},
  title = {Quality of life measures in epilepsy: how well can they detect change over time?},
  abstract = {OBJECTIVE: To evaluate the ability of health-related quality of life (HRQOL) measures to detect change over time in persons with epilepsy. BACKGROUND: The application of HRQOL measures in clinical trials has been limited by a dearth of information regarding their abilities to measure change over time (i.e., their responsiveness). To calculate responsiveness, one must categorize subjects as "changed" or "unchanged" by a priori criteria. METHODS: The authors analyzed data collected at baseline and at 28-week follow-up from an antiepileptic drug trial. Two different criteria for classifying subjects as changed or unchanged-one based on seizure frequency (where changed = attainment of seizure freedom) and one based on self-reported overall condition (where changed = improvement in overall condition)-were used. We compared responsiveness indices for two generic (Short Form [SF]-36 and SF-12) and two epilepsy-targeted (Quality of Life in Epilepsy [QOLIE]-89 and QOLIE-31) HRQOL measures. Two scoring procedures for the SF-36, one based on classic test theory and the other on item response theory (IRT), were compared. RESULTS: Effect sizes of the most responsive HRQOL measures were medium to large. The shorter epilepsy-targeted measure had similar responsiveness indices to those of the longer measure. Epilepsy-targeted measures were consistently more responsive than generic measures under the overall condition criterion, but for the seizure freedom criterion, IRT scoring of the SF-36 yielded responsiveness indices comparable to those of the epilepsy-targeted measures. CONCLUSION: Epilepsy-targeted health-related quality of life measures may be preferable to generic ones in longitudinal studies. Selection of a shorter epilepsy-targeted measure does not compromise responsiveness. Item response theory scoring should be applied to epilepsy-targeted HRQOL measures.},
  affiliation = {Department of Medicine, Robert Wood Johnson Clinical Scholars Program, University of California at Los Angeles, USA. gdike@ucla.edu},
  number = {9},
  pages = {1822--7},
  volume = {54},
  year = {2000},
  month = {May},
  language = {eng},
  keywords = {Psychometrics, Quality of Life, Sensitivity and Specificity, Vigabatrin, Epilepsy, Female, Adult, Humans, Adolescent, Male, Sickness Impact Profile, Drug Therapy: Combination, Aged, Anticonvulsants, Middle Aged, Electroencephalography},
  date-added = {2010-03-10 20:23:47 +0100},
  date-modified = {2010-07-29 19:41:27 +0200},
  pmid = {10802791},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7344},
  rating = {0}
}
@article{Zhuang:2009p11373,
  author = {Joanna J Zhuang and Andrew P Morris},
  journal = {BMC Proc},
  title = {Assessment of sex-specific effects in a genome-wide association study of rheumatoid arthritis},
  abstract = {ABSTRACT : Rheumatoid arthritis (RA) is three times more common in females than in males, suggesting that sex may play a role in modifying genetic associations with disease. We have addressed this hypothesis by performing sex-differentiated and sex-interaction analyses of a genome-wide association study of RA in a North American population. Our results identify a number of novel associations that demonstrate strong evidence of association in both sexes combined, with no evidence of heterogeneity in risk between males and females. However, our analyses also highlight a number of associations with RA in males or females only. These signals may represent true sex-specific effects, or may reflect a lack of power to detect association in the smaller sample of males, and thus warrant further investigation.},
  affiliation = {Genetic and Genomic Epidemiology Unit, Wellcome Trust Centre for Human Genetics, University of Oxford, Roosevelt Drive, Oxford, OX3 7BN, UK. zhuang@well.ox.ac.uk.},
  pages = {S90},
  volume = {3 Suppl 7},
  year = {2009},
  month = {Jan},
  language = {eng},
  date-added = {2010-04-26 23:09:58 +0200},
  date-modified = {2010-07-29 19:21:19 +0200},
  pmid = {20018087},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Zhuang-2009-BMC%20Proc_Assessment%20of%20sex-sp.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11373},
  rating = {4}
}
@article{Farmer:2005p7290,
  author = {Melissa M Farmer and Kenneth F Ferraro},
  journal = {Soc Sci Med},
  title = {Are racial disparities in health conditional on socioeconomic status?},
  abstract = {Racial health inequality is related to socioeconomic status (SES), but debate ensues on the nature of the relationship. Using the US National Health and Nutrition Examination Survey I and the subsequent follow-up interviews, this research examines health disparities between white and black adults and whether the SES/health gradient differs across the two groups in the USA. Two competing mechanisms for the conditional or interactive relationship between race and SES on health are examined during a 20-year period for black and white Americans. Results show that black adults began the study with more serious illnesses and poorer self-rated health than white adults and that the disparity continued over the 20 years. Significant interactions were found between race and education as well as race and employment status on health outcomes. The interaction effect of race and education showed that the racial disparity in self-rated health was largest at the higher levels of SES, providing some evidence for the "diminishing returns" hypothesis; as education levels increased, black adults did not have the same improvement in self-rated health as white adults. Overall, the findings provide evidence for the continuing significance of both race and SES in determining health status over time.},
  affiliation = {VA Center for the Study of Healthcare Provider Behavior, VA Health Services Research and Development Center of Excellence, Sepulveda Ambulatory and Nursing Home Center, Sepulveda, CA 91343, USA. farmermm@ucla.edu},
  number = {1},
  pages = {191--204},
  volume = {60},
  year = {2005},
  month = {Jan},
  language = {eng},
  keywords = {Longitudinal Studies, Health Status Indicators, Aged, Adult, Educational Status, Male, United States, Health Services Accessibility, Sick Role, Socioeconomic Factors, Poverty, Female, Cross-Sectional Studies, Chronic Disease, African Continental Ancestry Group, Humans, Life Style, Middle Aged, European Continental Ancestry Group, Disabled Persons},
  date-added = {2010-03-10 20:18:56 +0100},
  date-modified = {2010-03-10 20:18:56 +0100},
  doi = {10.1016/j.socscimed.2004.04.026},
  pii = {S0277953604002072},
  pmid = {15482878},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Farmer-2005-Soc%20Sci%20Med_Are%20racial%20dispariti.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7290},
  rating = {0}
}
@article{Forkman:2008p13756,
  author = {T Forkman},
  title = {New Perspectives for the Assessment of Depression: Development of an Item Bank and a Screening Instrument Applying Rasch Analysis and Structural Equation Modelling},
  year = {2008},
  date-added = {2010-07-24 12:48:37 +0200},
  date-modified = {2010-07-24 12:49:05 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Forkman-2008-_New%20Perspectives%20for.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13756},
  rating = {0}
}
@article{Gautam:2010p12881,
  author = {P Gautam and K R Pardasani},
  journal = {Journal of Computing},
  title = {A novel approach for discovery multi level fuzzy association
rule mining},
  abstract = {Finding multilevel association rules in transaction databases is most commonly seen in is widely used in data mining. In this paper, we present a model of mining multilevel association rules which satisfies the different minimum support at each level, we have employed fuzzy set concepts, multi-level taxonomy and different minimum supports to find fuzzy multilevel association rules in a given transaction data set. Apriori property is used in model to prune the item sets. The proposed model adopts a top- down progressively deepening approach to derive large itemsets. This approach incorporates fuzzy boundaries instead of sharp boundary intervals. An example is also given to demonstrate and support that the proposed mining algorithm can derive the multiple-level association rules under different supports in a simple and effective manner.},
  number = {3},
  pages = {56--64},
  volume = {2},
  year = {2010},
  date-added = {2010-06-24 13:05:17 +0200},
  date-modified = {2010-06-24 13:06:41 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Gautam-2010-Journal%20of%20Computing_A%20novel%20approach%20for.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12881},
  rating = {0}
}
@article{Ioannidis:2007p10423,
  author = {John P A Ioannidis and Thomas A Trikalinos},
  journal = {Clin Trials},
  title = {An exploratory test for an excess of significant findings},
  abstract = {BACKGROUND: The published clinical research literature may be distorted by the pursuit of statistically significant results. PURPOSE: We aimed to develop a test to explore biases stemming from the pursuit of nominal statistical significance. METHODS: The exploratory test evaluates whether there is a relative excess of formally significant findings in the published literature due to any reason (e.g., publication bias, selective analyses and outcome reporting, or fabricated data). The number of expected studies with statistically significant results is estimated and compared against the number of observed significant studies. The main application uses alpha = 0.05, but a range of alpha thresholds is also examined. Different values or prior distributions of the effect size are assumed. Given the typically low power (few studies per research question), the test may be best applied across domains of many meta-analyses that share common characteristics (interventions, outcomes, study populations, research environment). RESULTS: We evaluated illustratively eight meta-analyses of clinical trials with >50 studies each and 10 meta-analyses of clinical efficacy for neuroleptic agents in schizophrenia; the 10 meta-analyses were also examined as a composite domain. Different results were obtained against commonly used tests of publication bias. We demonstrated a clear or possible excess of significant studies in 6 of 8 large meta-analyses and in the wide domain of neuroleptic treatments. LIMITATIONS: The proposed test is exploratory, may depend on prior assumptions, and should be applied cautiously. CONCLUSIONS: An excess of significant findings may be documented in some clinical research fields.},
  affiliation = {Clinical Trials and Evidence Based Medicine Unit and Clinical and Molecular Epidemiology Unit, Department of Hygiene and Epidemiology, University of Ioannina School of Medicine, Ioannina, Greece. jioannid@cc.uoi.gr},
  number = {3},
  pages = {245--53},
  volume = {4},
  year = {2007},
  month = {Jan},
  language = {eng},
  keywords = {Antipsychotic Agents, Meta-Analysis as Topic, Data Interpretation: Statistical, Probability, Schizophrenia, Humans, Clinical Trials as Topic, Bias (Epidemiology)},
  date-added = {2010-04-07 11:00:42 +0200},
  date-modified = {2010-07-29 19:23:51 +0200},
  doi = {10.1177/1740774507079441},
  pii = {4/3/245},
  pmid = {17715249},
  url = {http://ctj.sagepub.com/cgi/reprint/4/3/245},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p10423},
  rating = {0}
}
@article{Buja:2004p921,
  author = {A Buja and D F Swayne and M L Littman and N Dean and H Hofmann},
  title = {Interactive Data Visualization with Multidimensional Scaling},
  abstract = {We discuss interactive techniques for multidimensional scaling (MDS) and a two sys- tems, named ``GGvis'' and ``XGvis'', that implement these techniques.
MDS is a method for visualizing proximity data, that is, data where objects are char- acterized by dissimilarity values for all pairs of objects. MDS constructs maps (called ``configurations'') of these objects in IRk by interpreting the dissimilarities as distances.
As a data-mapping technique, MDS is fundamentally a visualization method. It is hence plausible that MDS gains in power if it is embedded in a data visualization environment. Consequently, the MDS systems presented here are conceived as exten- sions of multivariate data visualization systems (``GGvis'' and ``X/GGobi'' in this case). The visual analysis of MDS output profits from dynamic projection tools for viewing high-dimensional configurations, from brushing multiple linked views, from plot en- hancements such as labels, glyphs, colors, lines, and from selective removal of groups of objects. Powerful is also the ability to move points and groups of points interactively and thereby create new starting configurations for MDS optimization.
In addition to the benefits of a data visualization environment, we enhance MDS by providing interactive control over numerous options and parameters, a few of them novel. They include choices of 1) metric versus nonmetric MDS, 2) classical versus dis- tance MDS, 3) the configuration dimension, 4) power transformations for metric MDS, 5) distance transformations and 6) Minkowski metrics for distance MDS, 7) weights in the form of powers of dissimilarities and 8) as a function of group memberships, 9) var- ious types of group-dependent MDS such as multidimensional unfolding and external unfolding, 10) random subselection of dissimilarities, 11) perturbation of configura- tions, and 12) a separate window for diagnostics, including the Shepard plot.
MDS was originally developed for the social sciences, but it is now also used for laying out graphs. Graph layout is usually done in 2-D, but we allow layouts in arbitrary dimensions. We show applications to the mapping of computer usage data, to the dimension reduction of marketing segmentation data, to the layout of mathematical graphs and social networks, and finally to the spatial reconstruction of molecules.},
  year = {2004},
  keywords = {External Unfolding, Dimension Reduction, Dissimilarity Data, Multivariate Analysis, Multidimensional Unfolding, Proximity Data, Graph Layout, Molecular Conformation, Social Networks},
  date-added = {2010-01-03 19:09:44 +0100},
  date-modified = {2010-01-03 19:11:48 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Buja-2004-_Interactive%20Data%20Vis.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p921},
  rating = {0}
}
@article{Bulik:2007p1321,
  author = {Cynthia M Bulik and Margarita C T Slof-Op't Landt and Eric F van Furth and Patrick F Sullivan},
  journal = {Annu Rev Nutr},
  title = {The genetics of anorexia nervosa},
  abstract = {Anorexia nervosa is a perplexing illness marked by low body weight and persistent fear of weight gain. Anorexia nervosa has the highest mortality rate of any psychiatric disease. Historically, anorexia nervosa was viewed as a disorder primarily influenced by sociocultural factors; however, over the past decade, this perception has been challenged. Family studies have consistently demonstrated that anorexia nervosa runs in families. Twin studies have underscored the contribution of additive genetic factors to the observed familial aggregation. With these bodies of literature as a starting point, we evaluate critically the current state of research on molecular genetic studies of anorexia nervosa and provide guidance for future research.},
  affiliation = {Department of Psychiatry, University of North Carolina at Chapel Hill, NC 27599, USA.},
  pages = {263--75},
  volume = {27},
  year = {2007},
  month = {Jan},
  language = {eng},
  keywords = {Twin Studies as Topic, Depressive Disorder, Linkage (Genetics), Genetic Predisposition to Disease, Diseases in Twins, Body Weight, Humans, Family, Anorexia Nervosa, Obesity, Risk Factors},
  date-added = {2010-01-07 11:36:39 +0100},
  date-modified = {2010-01-07 11:36:39 +0100},
  doi = {10.1146/annurev.nutr.27.061406.093713},
  pmid = {17430085},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1321},
  rating = {0}
}
@article{Brugha:1999a,
  author = {TS Brugha and PE Bebbington and R Jenkins and H Meltzer and NA Taub and M Janas and J Vernon},
  journal = {Psychol Med},
  title = {Cross validation of a general population survey diagnostic interview: a comparison of CIS-R with SCAN ICD-10 diagnostic categories},
  abstract = {BACKGROUND: Comparisons of structured diagnostic interviews with clinical assessments in general population samples show marked discrepancies. In order to validate the CIS-R, a fully structured diagnostic interview used for the National Survey of Psychiatric Morbidity in Great Britain, it was compared with SCAN, a standard, semi-structured, clinical assessment. METHODS: A random sample of 1882 Leicestershire addresses from the Postcode Address File yielded 1157 eligible adults: of these 860 completed the CIS-R; 387 adults scores > or = 8 on the CIS-R and 205 of these completed a SCAN reference examination. Neurotic symptoms, in the previous week and month only, were enquired about. Concordance was estimated for ICD-10 neurotic and depressive disorders, F32 to F42 and for depression symptom score. RESULTS: Sociodemographic characteristics closely resembled National Survey and 1991 census profiles. Concordance was poor for any ICD-10 neurotic disorder (kappa = 0.25 (95% CI, 0.1-0.4)) and for depressive disorder (kappa = 0.23 (95% CI, 0-0.46)). Sensitivity to the SCAN reference classification was also poor. Specificity ranged from 0.8 to 0.9. Rank order correlation for total depression symptoms was 0.43 (Kendall's tau b; P < 0.001; N = 205). DISCUSSION: High specificity indicates that the CIS-R and SCAN agree that prevalence rates for specific disorders are low compared with estimates in some community surveys. We have revealed substantial discrepancies in case finding. Therefore, published data on service utilization designed to estimate unmet need in populations requires re-interpretation. The value of large-scale CIS-R survey data can be enhanced considerably by the incorporation of concurrent semi-structured clinical assessments.},
  number = {5},
  pages = {1029--1042},
  volume = {29},
  year = {1999},
  date-added = {2010-01-03 19:36:10 +0100},
  date-modified = {2010-07-29 20:43:20 +0200},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1058},
  rating = {0}
}
@article{Birmingham:2008p6046,
  author = {Elina Birmingham and Walter F Bischof and Alan Kingstone},
  journal = {Q J Exp Psychol (Colchester)},
  title = {Social attention and real-world scenes: the roles of action, competition and social content},
  abstract = {The present study examined how social attention is influenced by social content and the presence of items that are available for attention. We monitored observers' eye movements while they freely viewed real-world social scenes containing either 1 or 3 people situated among a variety of objects. Building from the work of Yarbus (1965/1967) we hypothesized that observers would demonstrate a preferential bias to fixate the eyes of the people in the scene, although other items would also receive attention. In addition, we hypothesized that fixations to the eyes would increase as the social content (i.e., number of people) increased. Both hypotheses were supported by the data, and we also found that the level of activity in the scene influenced attention to eyes when social content was high. The present results provide support for the notion that the eyes are selected by others in order to extract social information. Our study also suggests a simple and surreptitious methodology for studying social attention to real-world stimuli in a range of populations, such as those with autism spectrum disorders.},
  affiliation = {Department of Psychology, University of British Columbia, 2136 West Mall, Vancouver, BC, Canada V6T 1Z4. ebirmingham2@yahoo.ca},
  number = {7},
  pages = {986--98},
  volume = {61},
  year = {2008},
  month = {Jul},
  language = {eng},
  keywords = {Semantics, Attention, Competitive Behavior, Eye Movements, Social Perception, Humans, Fixation: Ocular},
  date-added = {2010-02-19 17:01:39 +0100},
  date-modified = {2010-02-19 17:01:39 +0100},
  pmid = {18938281},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6046},
  rating = {0}
}
@article{Gutbrod:2000p7933,
  author = {T Gutbrod and D Wolke and B Soehne and B Ohrt and K Riegel},
  journal = {Arch Dis Child Fetal Neonatal Ed},
  title = {Effects of gestation and birth weight on the growth and development of very low birthweight small for gestational age infants: a matched group comparison},
  abstract = {AIMS: To investigate the effects of small for gestational age (SGA) in very low birthweight (VLBW) infants on growth and development until the fifth year of life. METHODS: VLBW (< 1500 g) infants, selected from a prospective study, were classified as SGA (n = 115) on the basis of birth weight below the 10th percentile for gestational age and were compared with two groups of appropriate for gestational age (AGA) infants matched according to birth weight (AGA-BW; n = 115) or gestation at birth (AGA-GA; n = 115). Prenatal, perinatal, and postnatal risk factors were recorded, and duration and intensity of treatment were computed from daily assessments. Body weight, length, and head circumference were measured at birth, five and 20 months (corrected for prematurity), and at 56 months. General development was assessed at five and 20 months with the Griffiths scale of babies abilities, and cognitive development at 56 months with the Columbia mental maturity scales, a vocabulary (AWST) and language comprehension test (LSVTA). RESULTS: Significant group differences were found in complications (pregnancy, birth, and neonatal), parity, and multiple birth rate. The AGA-GA group showed most satisfactory growth up to 56 months, with both the AGA-BW and SGA groups lagging behind. The AGA-GA group also scored significantly more highly on all developmental and cognitive tests than the other groups. Developmental test results were similar for the SGA and AGA-BW groups at five and 20 months, but AGA-BW infants (lowest gestation) had lower scores on performance intelligence quotient and language comprehension at 56 months than the SGA group. When prenatal and neonatal complications, parity, and multiple birth were accounted for, group differences in growth remained, but differences in cognitive outcome disappeared after five months. CONCLUSIONS: Being underweight and with a short gestation (SGA and VLBW) leads to poor weight gain and head growth in infancy but does not result in poorer growth than in infants of the same birth weight but shorter gestation (AGA-BW) in the long term. SGA is related to early developmental delay and later language problems; however, neonatal complications may have a larger detrimental effect on long term cognitive development of VLBW infants than whether they are born SGA or AGA.},
  affiliation = {Department of Psychology, University of Hertfordshire, Hatfield, Hertfordshire, UK.},
  number = {3},
  pages = {F208--14},
  volume = {82},
  year = {2000},
  month = {May},
  language = {eng},
  keywords = {Pregnancy, Child Development, Infant: Small for Gestational Age, Case-Control Studies, Cephalometry, Infant: Newborn, Gestational Age, Infant, Body Weight, Body Height, Infant: Very Low Birth Weight, Prognosis, Humans, Birth Weight, Child: Preschool, Female, Risk Factors},
  date-added = {2010-03-20 19:25:17 +0100},
  date-modified = {2010-03-20 19:25:17 +0100},
  pmid = {10794788},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Gutbrod-2000-Arch%20Dis%20Child%20Fetal%20Neonatal%20Ed_Effects%20of%20gestation.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7933},
  rating = {0}
}
@article{Partchev:2004p2711,
  author = {I Partchev},
  title = {A visual guide to item response theory},
  year = {2004},
  date-added = {2010-01-13 13:54:19 +0100},
  date-modified = {2010-01-13 13:55:56 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Partchev-2004-_A%20visual%20guide%20to%20it.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2711},
  rating = {0}
}
@inproceedings{Jiao:2004,
  author = {Hong Jiao},
  journal = {Proceedings},
  title = {Evaluating the dimensionality of the Michigan English Language Assessment Battery},
  pages = {27--52},
  volume = {2},
  year = {2004},
  date-added = {2010-01-10 11:33:23 +0100},
  date-modified = {2010-01-10 11:33:25 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Jiao-2004-Proceedings_Evaluating%20the%20dimen.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2091},
  rating = {0}
}
@article{Bechger:2000ab,
  author = {Timo M Bechger and Norman D Verhelst and Huub H F M Verstralen},
  title = {Identifiability of Non-Linear Logistic Test Models},
  abstract = {The linear logistic test model (LLTM) specifies the item parameters as a weighted sum of basic parameters. The LLTM is a special case of a more general non-linear logistic test model (NLTM) where the weights are partially unknown. This paper is about the identifiability of the NLTM. Sufficient and necessary conditions for global identifiability are presented for a NLTM where the weights are linear functions, while conditions for local identifiability are shown to require less assumptions. It is also discussed how these conditions are checked using an algorithm due to Bekker, Merckens, and Wansbeek (1994). Several illustrations are given.},
  year = {2000},
  month = {Mar},
  date-added = {2010-01-03 19:39:03 +0100},
  date-modified = {2010-07-29 20:43:29 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Bechger-2000-_Identifiability%20of%20N.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1222},
  rating = {0}
}
@article{Kim:2005p878,
  author = {Seon-Young Kim and David J Volsky},
  journal = {BMC Bioinformatics},
  title = {PAGE: parametric analysis of gene set enrichment},
  abstract = {BACKGROUND: Gene set enrichment analysis (GSEA) is a microarray data analysis method that uses predefined gene sets and ranks of genes to identify significant biological changes in microarray data sets. GSEA is especially useful when gene expression changes in a given microarray data set is minimal or moderate. RESULTS: We developed a modified gene set enrichment analysis method based on a parametric statistical analysis model. Compared with GSEA, the parametric analysis of gene set enrichment (PAGE) detected a larger number of significantly altered gene sets and their p-values were lower than the corresponding p-values calculated by GSEA. Because PAGE uses normal distribution for statistical inference, it requires less computation than GSEA, which needs repeated computation of the permutated data set. PAGE was able to detect significantly changed gene sets from microarray data irrespective of different Affymetrix probe level analysis methods or different microarray platforms. Comparison of two aged muscle microarray data sets at gene set level using PAGE revealed common biological themes better than comparison at individual gene level. CONCLUSION: PAGE was statistically more sensitive and required much less computational effort than GSEA, it could identify significantly changed biological themes from microarray data irrespective of analysis methods or microarray platforms, and it was useful in comparison of multiple microarray data sets. We offer PAGE as a useful microarray analysis method.},
  affiliation = {Molecular Virology Division, St. Luke's-Roosevelt Hospital Center, Columbia University, New York, NY 10019, USA. kimsy@kribb.re.kr},
  pages = {144},
  volume = {6},
  year = {2005},
  month = {Jan},
  language = {eng},
  keywords = {Energy Metabolism, Models: Statistical, Computational Biology, Gene Expression Profiling, Diabetes Mellitus, Humans, Muscle: Skeletal, Sensitivity and Specificity, Oligonucleotide Array Sequence Analysis},
  date-added = {2010-01-03 18:09:19 +0100},
  date-modified = {2010-01-03 18:09:19 +0100},
  doi = {10.1186/1471-2105-6-144},
  pii = {1471-2105-6-144},
  pmid = {15941488},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Kim-2005-BMC%20Bioinformatics_PAGE%20parametric%20ana.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p878},
  rating = {0}
}
@article{Wallace:2002,
  author = {K A Wallace and A J Wheeler},
  journal = {Educational and Psychological Measurement},
  title = {Reliability Generalization of the Life Satisfaction Index},
  volume = {62},
  year = {2002},
  date-added = {2010-01-10 11:33:21 +0100},
  date-modified = {2010-01-10 11:33:25 +0100},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1861},
  rating = {0}
}
@article{Raiche:2005,
  author = {Gilles Ra{\^\i}che},
  journal = {Rasch Measurement Transactions},
  title = {Critical eigenvalue sizes in standardized residual principal components analysis},
  number = {1},
  pages = {1012},
  volume = {19},
  year = {2005},
  date-added = {2010-01-10 11:33:23 +0100},
  date-modified = {2010-01-10 11:33:25 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Ra%C3%AEche-2005-Rasch%20Measurement%20Transactions_Critical%20eigenvalue.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2185},
  rating = {0}
}
@article{Willis:1999p3645,
  author = {G B Willis},
  title = {Cognitive Interviewing. A ``How To'' Guide},
  year = {1999},
  date-added = {2010-01-16 19:49:27 +0100},
  date-modified = {2010-01-16 19:49:50 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Willis-1999-_Cognitive%20Interviewi.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3645},
  rating = {0}
}
@article{Pocock:2002p4001,
  author = {Stuart J Pocock and Susan E Assmann and Laura E Enos and Linda E Kasten},
  journal = {Stat Med},
  title = {Subgroup analysis, covariate adjustment and baseline comparisons in clinical trial reporting: current practice and problems},
  abstract = {Clinical trial investigators often record a great deal of baseline data on each patient at randomization. When reporting the trial's findings such baseline data can be used for (i) subgroup analyses which explore whether there is evidence that the treatment difference depends on certain patient characteristics, (ii) covariate-adjusted analyses which aim to refine the analysis of the overall treatment difference by taking account of the fact that some baseline characteristics are related to outcome and may be unbalanced between treatment groups, and (iii) baseline comparisons which compare the baseline characteristics of patients in each treatment group for any possible (unlucky) differences. This paper examines how these issues are currently tackled in the medical journals, based on a recent survey of 50 trial reports in four major journals. The statistical ramifications are explored, major problems are highlighted and recommendations for future practice are proposed. Key issues include: the overuse and overinterpretation of subgroup analyses; the underuse of appropriate statistical tests for interaction; inconsistencies in the use of covariate-adjustment; the lack of clear guidelines on covariate selection; the overuse of baseline comparisons in some studies; the misuses of significance tests for baseline comparability, and the need for trials to have a predefined statistical analysis plan for all these uses of baseline data.},
  affiliation = {Medical Statistics Unit, London School of Hygiene {\&} Tropical Medicine, London, WC1E 7HT, UK. stuart.pocock@lshtm.ac.uk},
  number = {19},
  pages = {2917--30},
  volume = {21},
  year = {2002},
  month = {Oct},
  language = {eng},
  keywords = {Periodicals as Topic, Data Interpretation: Statistical, Social Support, Humans, Male, Myocardial Infarction, Randomized Controlled Trials as Topic, Female, Publications, Antihypertensive Agents},
  date-added = {2010-01-17 23:24:25 +0100},
  date-modified = {2010-01-17 23:24:25 +0100},
  doi = {10.1002/sim.1296},
  pmid = {12325108},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4001},
  rating = {0}
}
@article{deLeeuw:2005p4267,
  author = {Jan de Leeuw},
  title = {Linear multilevel models},
  year = {2005},
  date-added = {2010-01-23 21:31:49 +0100},
  date-modified = {2010-07-29 20:45:39 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/de%20Leeuw-2005-_Linear%20multilevel%20mo.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4267},
  rating = {0}
}
@article{Watson:2009p5943,
  author = {David Watson},
  journal = {Annual review of clinical psychology},
  title = {Differentiating the mood and anxiety disorders: a quadripartite model},
  abstract = {Recent work has focused on explicating the relations among the current mood and anxiety disorders. This research has yielded some important findings (e.g., the very strong link between generalized anxiety disorder and the unipolar mood disorders). I discuss problems associated with disorder-based analyses, however, and I argue that they need to be supplemented by examining relations among the specific symptom dimensions within these diagnostic classes. I demonstrate that two quantitative elements need to be considered when analyzing the properties of symptoms-the level of specificity and the magnitude of the general distress variance. These quantitative elements can be used to organize relevant symptoms into four groups (i.e., a quadripartite model) that reflect varying combinations of distress and specificity. I illustrate the value of this approach by reviewing the properties of the major symptom dimensions within posttraumatic stress disorder, obsessive-compulsive disorder, and major depression.},
  affiliation = {Department of Psychology, University of Iowa, Iowa City, IA 52242, USA. david-watson@uiowa.edu},
  pages = {221--47},
  volume = {5},
  year = {2009},
  month = {Jan},
  language = {eng},
  keywords = {Humans, Stress Disorders: Post-Traumatic, Diagnostic and Statistical Manual of Mental Disorders, Anxiety Disorders, Diagnosis: Differential, Mood Disorders},
  date-added = {2010-02-18 23:17:30 +0100},
  date-modified = {2010-02-18 23:17:30 +0100},
  doi = {10.1146/annurev.clinpsy.032408.153510},
  pmid = {19327030},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Watson-2009-Annual%20review%20of%20clinical%20psychology_Differentiating%20the.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5943},
  rating = {0}
}
@article{Kelly:2008p3358,
  author = {Patrick Kelly and Yinghui Zhou and John Whitehead and Nigel Stallard and Clive Bowman},
  journal = {Stat Med},
  title = {Sequentially testing for a gene-drug interaction in a genomewide analysis},
  abstract = {Assaying a large number of genetic markers from patients in clinical trials is now possible in order to tailor drugs with respect to efficacy. The statistical methodology for analysing such massive data sets is challenging. The most popular type of statistical analysis is to use a univariate test for each genetic marker, once all the data from a clinical study have been collected. This paper presents a sequential method for conducting an omnibus test for detecting gene-drug interactions across the genome, thus allowing informed decisions at the earliest opportunity and overcoming the multiple testing problems from conducting many univariate tests. We first propose an omnibus test for a fixed sample size. This test is based on combining F-statistics that test for an interaction between treatment and the individual single nucleotide polymorphism (SNP). As SNPs tend to be correlated, we use permutations to calculate a global p-value. We extend our omnibus test to the sequential case. In order to control the type I error rate, we propose a sequential method that uses permutations to obtain the stopping boundaries. The results of a simulation study show that the sequential permutation method is more powerful than alternative sequential methods that control the type I error rate, such as the inverse-normal method. The proposed method is flexible as we do not need to assume a mode of inheritance and can also adjust for confounding factors. An application to real clinical data illustrates that the method is computationally feasible for a large number of SNPs.},
  affiliation = {School of Public Health, The University of Sydney, Sydney, NSW 2006, Australia. pkelly@health.usyd.edu.au},
  number = {11},
  pages = {2022--34},
  volume = {27},
  year = {2008},
  month = {May},
  language = {eng},
  keywords = {Data Interpretation: Statistical, Pharmacogenetics, Drug Design, Polymorphism: Single Nucleotide, Clinical Trials as Topic, Gene Frequency, Algorithms, Humans, Models: Statistical},
  date-added = {2010-01-15 14:38:14 +0100},
  date-modified = {2010-03-31 20:17:04 +0200},
  doi = {10.1002/sim.3059},
  pmid = {17979181},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3358},
  rating = {4}
}
@article{Meulman:1996p2328,
  author = {J J Meulman and W J Heiser},
  title = {Visual display of interaction in multiway contingency tables by use of homogeneity analysis: The 2x2x2x2 case},
  year = {1996},
  date-added = {2010-01-10 12:56:32 +0100},
  date-modified = {2010-01-10 12:57:34 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Meulman-1996-_Visual%20display%20of%20in.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2328},
  rating = {0}
}
@article{Vanyukov:2009p12679,
  author = {Michael M Vanyukov and Levent Kirisci and Lisa Moss and Ralph E Tarter and Maureen D Reynolds and Brion S Maher and Galina P Kirillova and Ty Ridenour and Duncan B Clark},
  journal = {Behav Genet},
  title = {Measurement of the risk for substance use disorders: phenotypic and genetic analysis of an index of common liability},
  abstract = {The inability to quantify the risk for disorders, such as substance use disorders (SUD), hinders etiology research and development of targeted intervention. Based on the concept of common transmissible liability to SUD related to illicit drugs, a method enabling quantification of this latent trait has been developed, utilizing high-risk design and item response theory. This study examined properties of a SUD transmissible liability index (TLI) derived using this method. Sons of males with or without SUD were studied longitudinally from preadolescence to young adulthood. The properties of TLI, including its psychometric characteristics, longitudinal risk assessment and ethnic variation, were examined. A pilot twin study was conducted to analyze the composition of TLI's phenotypic variance. The data suggest that TLI has concurrent, incremental, predictive and discriminant validity, as well as ethnic differences. The data suggest a high heritability of the index in males. The results suggest applicability of the method for genetic and other etiology-related research, and for evaluation of individual risk.},
  affiliation = {Center for Education and Drug Abuse Research, Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, 711 Salk Hall, Pittsburgh, PA 15261, USA. mmv@pitt.edu},
  number = {3},
  pages = {233--44},
  volume = {39},
  year = {2009},
  month = {May},
  language = {eng},
  keywords = {Pilot Projects, Substance-Related Disorders, Child of Impaired Parents, Twins: Dizygotic, Age Factors, Street Drugs, Twins: Monozygotic, Diseases in Twins, Longitudinal Studies, Opioid-Related Disorders, Child, Cocaine-Related Disorders, Young Adult, Phenotype, Social Environment, Adolescent, Humans, Proportional Hazards Models, Genetic Predisposition to Disease, Marijuana Abuse, Risk, Male, Genotype, Logistic Models},
  date-added = {2010-06-15 22:43:28 +0200},
  date-modified = {2010-07-29 20:09:06 +0200},
  doi = {10.1007/s10519-009-9269-9},
  pmid = {19377872},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Vanyukov-2009-Behav%20Genet_Measurement%20of%20the%20r.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12679},
  rating = {4}
}
@article{Motsinger:2006p3199,
  author = {A A Motsinger and B S Donahue and N J Brown and D M Roden and M D Ritchie},
  journal = {Pac Symp Biocomput},
  title = {Risk Factor Interactions and Genetic Effects Associated with Post-Operative Atrial Fibrillation},
  abstract = {Postoperative Atrial Fibrillation (PoAF) is the most common arrhythmia after heart surgery, and continues to be a major cause of morbidity. Due to the complexity of this condition, many genes and/or environmental factors may play a role in susceptibility. Previous findings have shown several clinical and genetic risk factors for the development of PoAF. The goal of this study was to determine whether interactions among candidate genes and a variety of clinical factors are associated with PoAF. We applied the Multifactor Dimensionality Reduction (MDR) method to detect interactions in a sample of 940 adult subjects undergoing elective procedures of the heart or great vessels, requiring general anesthesia and sternotomy or thoracotomy, where 255 developed PoAF. We took a random sample of controls matched to the 255 AF cases for a total sample size of 510 individuals. MDR is a powerful statistical approach used to detect gene-gene or gene-environment interactions in the presence or absence of statistically detectable main effects in pharmacogenomics studies. We chose polymorphisms in three (IL-6, ACE, and ApoE) candidate genes, all previously implicated in PoAF risk, and a variety of environmental factors for analysis. We detected a single locus effect of IL-6 which is able to correctly predict disease status with 58.8% (p<0.001) accuracy. We also detected an interaction between history of AF and length of hospital stay that predicted disease status with 68.34% (p<0.001) accuracy. These findings demonstrate the utility of novel computational approaches for the detection of disease susceptibility genes. While each of these results looks interesting, they only explain part of PoAF susceptibility. It will be important to collect a larger set of candidate genes and environmental factors to better characterize the development of PoAF. Applying this approach, we were able to elucidate potential associations with postoperative atrial fibrillation.},
  pages = {584--595},
  volume = {11},
  year = {2006},
  date-added = {2010-01-14 20:58:28 +0100},
  date-modified = {2010-07-29 19:42:21 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Motsinger-2006-Pac%20Symp%20Biocomput_Risk%20Factor%20Interact.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3199},
  rating = {0}
}
@article{RabeHesketh:2008p3595,
  author = {S Rabe-Hesketh and A Skrondal and H K Gjessing},
  journal = {Biometrics},
  title = {Biometrical modeling of twin and family data using standard mixed model software},
  abstract = {Biometrical genetic modeling of twin or other family data can be used to decompose the variance of an observed response or 'phenotype' into genetic and environmental components. Convenient parameterizations requiring few random effects are proposed, which allow such models to be estimated using widely available software for linear mixed models (continuous phenotypes) or generalized linear mixed models (categorical phenotypes). We illustrate the proposed approach by modeling family data on the continuous phenotype birth weight and twin data on the dichotomous phenotype depression. The example data sets and commands for Stata and R/S-PLUS are available at the Biometrics website.},
  affiliation = {Graduate School of Education {\&} Graduate Group in Biostatistics, University of California, Berkeley, CA 94720, USA. sophiarh@berkeley.edu},
  number = {1},
  pages = {280--8},
  volume = {64},
  year = {2008},
  month = {Mar},
  language = {eng},
  keywords = {Humans, Models: Statistical, Family, Models: Biological, Software, Twins, Biometry, Algorithms, Computer Simulation},
  date-added = {2010-01-15 21:23:48 +0100},
  date-modified = {2010-01-15 21:23:53 +0100},
  doi = {10.1111/j.1541-0420.2007.00803.x},
  pii = {BIOM803},
  pmid = {17484777},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Rabe-Hesketh-2008-Biometrics_Biometrical%20modeling.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3595},
  read = {Yes},
  rating = {4}
}
@article{BatistaNeves:2009p4545,
  author = {Susana Batista-Neves and Lucas C Quarantini and Amanda Galv{\~a}o-de Almeida and Maur{\'\i}cio Cardeal and Acioly L Lacerda and Raymundo Paran{\'a} and Irismar Reis de-Oliveira and Rodrigo A Bressan and Angela Miranda-Scippa},
  journal = {Braz J Infect Dis},
  title = {Impact of psychiatric disorders on the quality of life of brazilian HCV-infected patients},
  abstract = {The aim of our study was to determine the impact of psychiatric comorbidities on the health-related quality of life of HCV-infected patients. Assessment of clinical, socio-demographic and quality of life data of the patients followed up at a Hepatology unit was performed by using a standard questionnaire and the SF-36 instrument. Psychiatric diagnoses were confirmed by using the Mini International Neuropsychiatric Interview, Brazilian version 5.0.0 (MINI Plus). Evaluation using the MINI plus demonstrated that 46 (51%) patients did not have any psychiatric diagnosis, while 44 (49%) had at least one psychiatric diagnosis. Among patients with a psychiatric comorbidity, 26 (59.1%) had a current mental disorder, out of which 22 (84.6%) had not been previously diagnosed. Patients with psychiatric disorders had lower scores in all dimensions of the SF-36 when compared to those who had no psychiatric diagnosis. Scores of physical functioning and bodily pain domains were lower for those suffering from a current psychiatric disorder when compared to those who had had a psychiatric disorder in the past. Females had lower scores of bodily pain and mental health dimensions when compared to males. Scores for mental health dimension were also lower for patients with advanced fibrosis. The presence of a psychiatric comorbidity was the variable that was most associated with the different scores in the SF-36, compared to other variables such as age, gender, aminotransferase levels, and degree of fibrosis.},
  affiliation = {Hospital Universit{\'a}rio, Federal University of Bahia, Brazil.},
  number = {1},
  pages = {40--3},
  volume = {13},
  year = {2009},
  month = {Feb},
  language = {eng},
  keywords = {Hepatitis C: Chronic, Male, Mental Disorders, Female, Adult, Young Adult, Cross-Sectional Studies, Brazil, Questionnaires, Health Status, Humans, Middle Aged, Socioeconomic Factors, Quality of Life, Comorbidity},
  date-added = {2010-01-29 22:28:52 +0100},
  date-modified = {2010-01-29 22:28:52 +0100},
  pii = {S1413-86702009000100009},
  pmid = {19578628},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4545},
  rating = {0}
}
@article{Okoniewski:2008p1605,
  author = {Micha{\l} J Okoniewski and Crispin J Miller},
  journal = {PLoS Comput Biol},
  title = {Comprehensive analysis of affymetrix exon arrays using BioConductor},
  affiliation = {Applied Computational Biology and Bioinformatics Group, Cancer Research UK.},
  number = {2},
  pages = {e6},
  volume = {4},
  year = {2008},
  month = {Feb},
  language = {eng},
  keywords = {Software, Sequence Analysis: DNA, Algorithms, Chromosome Mapping, RNA Splice Sites, Oligonucleotide Array Sequence Analysis},
  date-added = {2010-01-07 17:00:38 +0100},
  date-modified = {2010-01-07 17:00:38 +0100},
  doi = {10.1371/journal.pcbi.0040006},
  pmid = {18463711},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Okoniewski-2008-PLoS%20Comput%20Biol_Comprehensive%20analys.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1605},
  rating = {0}
}
@article{Piek:2009p4205,
  author = {Jan P Piek and Nicholas C Barrett and Murray J Dyck and Angela M Reiersen},
  journal = {Dev Med Child Neurol},
  title = {Can the Child Behavior Checklist be used to screen for motor impairment?},
  abstract = {Aim It has been suggested that one approach to identifying motor impairment in children is to use the Child Behavior Checklist (CBCL) as a screening tool. The current study examined the validity of the CBCL in identifying motor impairment. Method A total of 398 children, 206 females and 192 males, aged from 3 years 9 months to 14 years 10 months were assessed on the McCarron Assessment of Neuromuscular Development to determine their motor ability. Parents completed the CBCL. Results The 'Clumsy' item on the CBCL was found to predict motor ability independent of the child's age, sex, and scores on other items of the CBCL. However, the sensitivity of the 'Clumsy' item in terms of identifying motor impairment was found to be a low 16.7% compared with specificity of 93.2%. The item 'Not liked' was also found to be a significant predictor of motor impairment. Interpretation Although the 'Clumsy' and 'Not liked' items were found to have a relationship with motor ability, they should not be relied upon to categorize children as motor impaired versus not impaired. It is possible that these items may be better indicators of motor impairment in children with developmental disorders such as attention-deficit-hyperactivity disorder, but clinical samples are needed to address this.},
  affiliation = {School of Psychology, Curtin University of Technology, Perth, Western Australia, Australia.},
  pages = {},
  year = {2009},
  month = {Dec},
  language = {ENG},
  date-added = {2010-01-21 07:58:33 +0100},
  date-modified = {2010-01-21 07:58:33 +0100},
  doi = {10.1111/j.1469-8749.2009.03326.x},
  pii = {DMCN3326},
  pmid = {20015254},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4205},
  rating = {0}
}
@article{Fox:2003p4099,
  author = {J Fox},
  journal = {Journal of Statistical Software},
  title = {Effect Displays in R for Generalised Linear Models},
  abstract = {This paper describes the implementation in R of a method for tabular or graphical display of terms in a complex generalised linear model. By complex, I mean a model that contains terms related by marginality or hierarchy, such as polynomial terms, or main effects and interactions. I call these tables or graphs effect displays. Effect displays are constructed by identifying high-order terms in a generalised linear model. Fitted values under the model are computed for each such term. The lower-order `relatives' of a high-order term (e.g., main effects marginal to an interaction) are absorbed into the term, allowing the predictors appearing in the high-order term to range over their values. The values of other predictors are fixed at typical values: for example, a covariate could be fixed at its mean or median, a factor at its proportional distribution in the data, or to equal proportions in its several levels. Variations of effect displays are also described, including representation of terms higher-order to any appearing in the model.},
  number = {15},
  volume = {8},
  year = {2003},
  date-added = {2010-01-19 23:30:14 +0100},
  date-modified = {2010-01-19 23:30:55 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Fox-2003-Journal%20of%20Statistical%20Software_Effect%20Displays%20in%20R.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4099},
  rating = {0}
}
@article{Jaeger:2007p14004,
  author = {T Florian Jaeger},
  title = {Categorical Data Analysis: Away from ANOVAs (transformation or not) and towards Logit Mixed Models},
  abstract = {This paper identifies several serious problems with the widespread use of ANOVAs for the analysis of categorical outcome variables such as forced-choice variables, question-answer accuracy, choice in production (e.g. in syntactic priming research), et cetera. I show that even after applying the arcsine-square-root transformation to proportional data, ANOVA can yield spurious results. I discuss conceptual issues underlying these problems and alternatives provided by modern statistics. Specifically, I introduce ordinary logit models (i.e. logistic regression), which are well-suited to analyze categorical data and offer many advantages over ANOVA. Unfortunately, ordinary logit models do not include random effect modeling. To address this issue, I describe mixed logit models (Generalized Linear Mixed Models for binomially distributed outcomes, Breslow {\&} Clayton, 1993), which combine the advantages of ordinary logit models with the ability to account for random subject and item effects in one step of analysis. Throughout the paper, I use a psycholinguistic data set to compare the different
statistical methods.},
  year = {2007},
  date-added = {2010-08-04 09:28:35 +0200},
  date-modified = {2010-08-04 09:29:16 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Jaeger-2007-_Categorical%20Data%20Ana.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p14004},
  rating = {0}
}
@article{Gavin:1989p8282,
  author = {D R Gavin and H E Ross and H A Skinner},
  journal = {Br J Addict},
  title = {Diagnostic validity of the drug abuse screening test in the assessment of DSM-III drug disorders},
  abstract = {Diagnostic validity of the DAST was assessed using a clinical sample of 501 drug/alcohol patients. Various DAST cut-points were validated against DSM-III drug abuse/dependence criteria, as assessed by the Diagnostic Interview Schedule. The DAST attained 85% overall accuracy in classifying patients according to DSM-III diagnosis. This accuracy was maintained between DAST score cut-points of 5/6 through 9/10. Receiver Operating Characteristic analysis indicated that 5/6 was the optimum threshold score. The DAST was also correlated with demographic variables, psychiatric history, and drug use. The results showed very good concurrent and discriminant validity. This study concluded that fairly accurate estimation of DSM-III drug criteria could be made using a brief self-administered questionnaire (DAST). However, caution must be expressed when generalizing these findings to other contexts (e.g. the justice system) where subjects may have stronger motivation to under-report drug involvement.},
  note = {psytools},
  number = {3},
  pages = {301--7},
  volume = {84},
  year = {1989},
  month = {Mar},
  language = {eng},
  keywords = {Predictive Value of Tests, Adult, Manuals as Topic, Female, Male, Humans, Psychometrics, Substance-Related Disorders, Psychiatric Status Rating Scales, Sensitivity and Specificity},
  date-added = {2010-03-20 20:04:50 +0100},
  date-modified = {2010-03-20 20:05:05 +0100},
  pmid = {2650770},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Gavin-1989-Br%20J%20Addict_Diagnostic%20validity.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8282},
  read = {Yes},
  rating = {0}
}
@article{Pek:2009p493,
  author = {Jolynn Pek and Sonya K Sterba and Bethany E Kok and Daniel J Bauer},
  journal = {Multivariate Behavioral Research},
  title = {Estimating and Visualizing Nonlinear Relations Among Latent Variables: A
Semiparametric Approach},
  abstract = {The graphical presentation of any scientific finding enhances its description, in- terpretation, and evaluation. Research involving latent variables is no exception, especially when potential nonlinear effects are suspect. This article has multiple aims. First, it provides a nontechnical overview of a semiparametric approach to modeling nonlinear relationships among latent variables using mixtures of linear structural equations. Second, it provides several examples showing how the method works and how it is implemented and interpreted in practical applications. In particular, this article examines the potentially nonlinear relationships between positive and negative affect and cognitive processing. Third, a recommended dis- play format for illustrating latent bivariate relationships is demonstrated. Finally, the article describes an R package and an online utility that generate these displays automatically.},
  pages = {407--436},
  volume = {44},
  year = {2009},
  date-added = {2010-01-03 12:58:10 +0100},
  date-modified = {2010-01-03 12:59:45 +0100},
  doi = {10.1080/00273170903103290},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Pek-2009-Multivariate%20Behavioral%20Research_Estimating%20and%20Visua.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p493},
  rating = {0}
}
@article{Zheng:2007p11587,
  author = {Y Zheng and M J Gierl and Y Cui},
  journal = {NCME},
  title = {Using Real Data to Compare DIF Detection and Effect Size Measures among Mantel-Haenszel, SIBTEST, and Logistic Regression Procedures},
  abstract = {To date, many studies have been conducted to compare the performance of different DIF
procedures using simulated data sets. However, some results from these simulation studies are inconsistent with one other (e.g., Hidalgo {\&} L{\'o}pez-Pina, 2004; Jodoin {\&} Gierl, 2001). This study used real data to systematically investigate the consistencies of DIF detection and effect size among three widely-used DIF procedures: Mantel-Haenszel (MH), Simultaneous Item Bias Test (SIBTEST), and logistic regression (LR). Several indicators, including correlations among DIF procedures effect size measures, matching percentages, and relative matching percentages, were used to evaluate the consistencies among the DIF procedures. The results showed high correlations among DIF effect size measures, moderate to high matching percentages among DIF classifications, and a broad range of relative matching percentages among DIF procedures.},
  year = {2007},
  date-added = {2010-05-09 18:33:09 +0200},
  date-modified = {2010-05-09 18:33:47 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Zheng-2007-NCME_Using%20Real%20Data%20to%20C.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11587},
  rating = {0}
}
@article{Mohamed:2010p12316,
  author = {S Mohamed and K Heller and Z Ghahramani},
  title = {Bayesian Exponential Family PCA},
  abstract = {Principal Components Analysis (PCA) has become established as one of the key tools for dimensionality reduction when dealing with real valued data. Ap- proaches such as exponential family PCA and non-negative matrix factorisation have successfully extended PCA to non-Gaussian data types, but these techniques fail to take advantage of Bayesian inference and can suffer from problems of over- fitting and poor generalisation. This paper presents a fully probabilistic approach to PCA, which is generalised to the exponential family, based on Hybrid Monte Carlo sampling. We describe the model which is based on a factorisation of the observed data matrix, and show performance of the model on both synthetic and real data.},
  date-added = {2010-06-12 09:35:10 +0200},
  date-modified = {2010-06-12 09:35:54 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Mohamed--_Bayesian%20Exponential.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12316},
  rating = {0}
}
@article{Harchaoui:2007p12333,
  author = {Z Harchaoui and C L{\'e}vy-Leduc},
  journal = {NIPS},
  title = {Catching Change-points with Lasso},
  abstract = {We propose a new approach for dealing with the estimation of the location of change-points in one-dimensional piecewise constant signals observed in white noise. Our approach consists in reframing this task in a variable selection con- text. We use a penalized least-squares criterion with a l1-type penalty for this purpose. We prove some theoretical results on the estimated change-points and on the underlying piecewise constant estimated function. Then, we explain how to implement this method in practice by combining the LAR algorithm and a re- duced version of the dynamic programming algorithm and we apply it to synthetic and real data.},
  year = {2007},
  date-added = {2010-06-12 10:12:15 +0200},
  date-modified = {2010-07-29 19:41:58 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Harchaoui-2007-NIPS_Catching%20Change-poin.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12333},
  rating = {0}
}
@article{Hansen:2009p12947,
  author = {Nathan B Hansen and Ellen L Vaughan and Courtenay E Cavanaugh and Christian M Connell and Kathleen J Sikkema},
  journal = {Health Psychol},
  title = {Health-related quality of life in bereaved HIV-positive adults: relationships between HIV symptoms, grief, social support, and Axis II indication},
  abstract = {OBJECTIVE: This study evaluated a model of the impact of borderline and antisocial personality disorder indications on HIV symptoms and health-related quality of life (HRQoL) in AIDS-bereaved adults, accounting for grief severity, social support, and years since HIV diagnosis. DESIGN: Structural equation modeling was used to test the proposed model in a sample of 268 HIV-seropositive adults enrolled in an intervention for coping with AIDS-related bereavement. MAIN OUTCOME MEASURES: Functional assessment of HIV infection, HIV symptoms. RESULTS: The proposed model demonstrated excellent fit with study data and all hypothesized paths were supported. Personality disorder indication was directly related to HIV symptoms and HRQoL and indirectly related through both social support and grief severity. Social support was negatively related to HIV symptoms and positively related to HRQoL, while grief severity was positively related to HIV symptoms and negatively related to HRQoL. Finally, HIV symptoms had a direct negative relationship with HRQoL. CONCLUSION: Personality disorders have a direct negative effect on HIV symptoms and HRQoL and indirect effects through grief severity and social support.},
  affiliation = {Department of Psychiatry, Yale University School of Medicine, New Haven, CT 06511, USA. nathan.hansen@yale.edu},
  number = {2},
  pages = {249--57},
  volume = {28},
  year = {2009},
  month = {Mar},
  language = {eng},
  keywords = {Sick Role, Social Support, Adult, Female, HIV Seropositivity, Grief, Quality of Life, Antisocial Personality Disorder, Psychotherapy: Group, Comorbidity, Male, Personality Inventory, Adaptation: Psychological, Models: Psychological, Homosexuality: Male, Humans, Statistics as Topic, Acquired Immunodeficiency Syndrome, Bereavement, Borderline Personality Disorder},
  date-added = {2010-06-25 22:03:16 +0200},
  date-modified = {2010-06-25 22:03:17 +0200},
  doi = {10.1037/a0013168},
  pii = {2009-03297-013},
  pmid = {19290717},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Hansen-2009-Health%20Psychol_Health-related%20quali.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12947},
  rating = {0}
}
@article{Riddle:2002p6717,
  author = {A S Riddle and M R Blais and U Hess},
  journal = {Cirano},
  title = {Static Versus Dynamic Structural Models of Depression: The Case of the CES-D},
  abstract = {Depression is composed of multiple subcomponents including social, cognitive, affective, and somatic symptomatology. Many widely used self-report scales are also multidimensional, suggesting that the subcomponents of depression are empirically differentiated, yet the use of a composite score is the common practice. The authors argue that a closer examination of the subscales of symptom inventories, and their interrelationships, can further our understanding of the development and persistence of depression. Structural equation modeling is used on the French version of CES-D responses (Radloff, 1977) from 1,734 participants, providing an explicit test of causal relations between several response classes commonly associated with depression. These structural models are consistent with a view of depression as a process that unfolds over time and are tested within both a cross-sectional and a prospective framework. They are compared to a higher-order factor model which speaks to the nature, but not the development, of depression.},
  volume = {37},
  year = {2002},
  date-added = {2010-03-05 22:10:06 +0100},
  date-modified = {2010-03-05 22:11:04 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Riddle-2002-Cirano_Static%20Versus%20Dynami.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6717},
  rating = {0}
}
@article{BecueBertaut:2008p4078,
  author = {M B{\'e}cue-Bertaut and J Pag{\`e}s},
  journal = {Computational Statistics},
  title = {Multiple factor analysis and clustering of a mixture of quantitative, categorical and frequency data},
  abstract = {Analysing and clustering units described by a mixture of sets of quantitative, categorical and frequency variables is a relevant challenge. Multiple factor analysis is extended to include these three types of variables in order to balance the influence of the different sets when a global distance between units is computed. Suitable coding is adopted to keep as close as possible to the approach offered by principal axes methods, that is, principal component analysis for quantitative sets, multiple correspondence analysis for categorical sets and correspondence analysis for frequency sets. In addition, the presence of frequency sets poses the problem of selecting the unit weighting, since this is fixed by the user (usually uniform) in principal component analysis and multiple correspondence analysis, but imposed by the table margin in correspondence analysis. The method's main steps are presented and illustrated by an example extracted from a survey that aimed to cluster respondents to a questionnaire that included both closed and open-ended questions.},
  pages = {3255--3268},
  volume = {52},
  year = {2008},
  date-added = {2010-01-19 15:56:06 +0100},
  date-modified = {2010-07-29 19:24:30 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/B%C3%A9cue-Bertaut-2008-Computational%20Statistics_Multiple%20factor%20anal.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4078},
  rating = {0}
}
@article{Okazaki:2009p12790,
  author = {S Okazaki},
  journal = {Perspectives on Psychological Science},
  title = {Impact of Racism on Ethnic Minority Mental Health},
  abstract = {A problem in ethnic minority mental health that can be solved in the foreseeable future is understanding how subtle and covert forms of racism affect psychological health of racial minorities. Although scientific psychology has generated a large body of literature on racial prejudice, stereotypes, intergroup attitudes, and racial bias and their often implicit and automatic nature, relatively little is known about the effects of these subtle racial bias on minority indi- viduals. Following a selective review of recent developments in experimental psychology and multicultural psychology, I suggest some promising approaches and opportunities for future integration that would advance the field.},
  number = {1},
  pages = {103--107},
  volume = {4},
  year = {2009},
  date-added = {2010-06-18 21:07:35 +0200},
  date-modified = {2010-06-18 21:08:34 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Okazaki-2009-Perspectives%20on%20Psychological%20Science_Impact%20of%20Racism%20on.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12790},
  rating = {0}
}
@article{Zeilis:2007p1769,
  author = {A Zeilis and K Hornik and P Murrell},
  title = {Escaping RGBland: Selecting Colors for Statistical Graphics},
  abstract = {Statistical graphics are often augmented by the use of color coding information contained in some variable. When this involves the shading of areas (and not only points or lines)--- e.g., as in bar plots, pie charts, mosaic displays or heatmaps---it is important that the colors are perceptually based and do not introduce optical illusions or systematic bias. Here, we discuss how the perceptually-based Hue-Chroma-Luminance (HCL) color space can be used for deriving suitable color palettes for coding categorical data (qualitative palettes) and numerical variables (sequential and diverging palettes).},
  affiliation = {Department of Statistics and Mathematics Wirtschaftsuniversit{\"a}t Wien},
  year = {2007},
  keywords = {HSV colors, perceptually-based color space, diverging palette, HCL colors, qualitative palette, sequential palette},
  date-added = {2010-01-09 21:28:16 +0100},
  date-modified = {2010-01-09 21:29:51 +0100},
  url = {http://statmath.wu-wien.ac.at/},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Zeilis-2007-_Escaping%20RGBland%20Se.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1769},
  rating = {0}
}
@article{Hampson:2009p13927,
  author = {Sarah E Hampson and Lewis R Goldberg and Thomas M Vogt and Teresa A Hillier and Joan P Dubanoski},
  journal = {J Health Psychol},
  title = {Using physiological dysregulation to assess global health status: associations with self-rated health and health behaviors},
  abstract = {Six measures of physiological dysregulation were derived from 11 clinically assessed biomarkers, and related to health outcomes and health behaviors for the Hawaii Personality and Health cohort (N = 470). Measures summing extreme scores at one tail of the biomarker distributions performed better than ones summing both tails, and continuous measures performed better than count scores. Health behaviors predicted men's dysregulation but not women's. Dysregulation and health behaviors predicted self-rated health for both men and women, and depressive symptoms predicted self-rated health only for women. These findings provide preliminary guidelines for constructing valid summary measures of global health status for use in health psychology.},
  affiliation = {University of Surrey, UK {\&} Oregon Research Institute, Eugene, OR, USA. sarah@ori.org},
  number = {2},
  pages = {232--41},
  volume = {14},
  year = {2009},
  month = {Mar},
  language = {eng},
  keywords = {Humans, Biological Markers, Health Behavior, Male, Health Status Indicators, Allostasis, Middle Aged, World Health, Hawaii, Adult, Disclosure, Regression Analysis, Female},
  date-added = {2010-07-29 18:58:14 +0200},
  date-modified = {2010-07-29 18:58:15 +0200},
  doi = {10.1177/1359105308100207},
  pii = {14/2/232},
  pmid = {19237490},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Hampson-2009-J%20Health%20Psychol_Using%20physiological.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13927},
  rating = {0}
}
@article{Slawski:2008p11612,
  author = {M Slawski and M Daumer and A-L Boulesteix},
  title = {CMA - A comprehensive Bioconductor package for supervised classification with high dimensional data},
  number = {29},
  year = {2008},
  date-added = {2010-05-11 21:41:36 +0200},
  date-modified = {2010-05-11 21:42:23 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Slawski-2008-_CMA%20-%20A%20comprehensiv.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11612},
  rating = {0}
}
@article{Brown:2006p6464,
  author = {David Brown and Peter Volkers and Simon Day},
  journal = {Stat Med},
  title = {An introductory note to CHMP guidelines: choice of the non-inferiority margin and data monitoring committees},
  abstract = {The Committee on Medical Products for Human Use (CHMP) has recently issued two new guidance documents that are of particular note to statisticians. The purpose of this short note is to give a little background to the origins of these documents and a flavour of some of their most important features. The two guidelines are reproduced as the next two papers in the journal.},
  affiliation = {MHRA, Market Towers, 1 Nine Elms Lane, London SW8 5NQ, U.K.},
  number = {10},
  pages = {1623--7},
  volume = {25},
  year = {2006},
  month = {May},
  language = {eng},
  keywords = {Therapeutic Equivalency, Clinical Trials Data Monitoring Committees, European Union, Clinical Trials as Topic, Pharmaceutical Preparations, Humans, Guidelines as Topic},
  date-added = {2010-02-23 08:33:22 +0100},
  date-modified = {2010-02-23 08:33:22 +0100},
  doi = {10.1002/sim.2561},
  pmid = {16639776},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Brown-2006-Stat%20Med_An%20introductory%20note.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6464},
  rating = {0}
}
@article{Herzog:2007p3013,
  author = {W Herzog and A Boomsma and S Reinecke},
  journal = {Structural Equation Modeling},
  title = {The Model-Size Effect on Traditional and Modified Tests of Covariance Structures},
  abstract = {According to Kenny and McCoach (2003), chi-square tests of structural equation models produce inflated Type I error rates when the degrees of freedom increase. So far, the amount of this bias in large models has not been quantified. In a Monte Carlo study of confirmatory factor models with a range of 48 to 960 degrees of freedom it was found that the traditional maximum likelihood ratio statistic, TML, overestimates nominal Type I error rates up to 70% under conditions of multivariate normality. Some alternative statistics for the correction of model-size effects were also investigated: the scaled Satorra--Bentler statistic, TS C ; the adjusted Satorra-- Bentler statistic, TAD (Satorra {\&} Bentler, 1988, 1994); corresponding Bartlett corrections, TMLb, TSCb, and TADb (Bartlett, 1950); and corresponding Swain corrections, TMLs, TSCs, and TADs (Swain, 1975). The empirical findings in- dicate that the model test statistic TMLs should be applied when large structural equation models are analyzed and the observed variables have (approximately) a multivariate normal distribution.},
  number = {3},
  pages = {361--390},
  volume = {14},
  year = {2007},
  date-added = {2010-01-13 23:27:06 +0100},
  date-modified = {2010-07-29 19:51:13 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Herzog-2007-Structural%20Equation%20Modeling_The%20Model-Size%20Effec.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3013},
  rating = {0}
}
@article{Pocock:2007p4696,
  author = {Stuart J Pocock and Thomas G Travison and Lisa M Wruck},
  journal = {Trials},
  title = {Figures in clinical trial reports: current practice {\&} scope for improvement},
  abstract = {BACKGROUND: Most clinical trial publications include figures, but there is little guidance on what results should be displayed as figures and how. PURPOSE: To evaluate the current use of figures in Trial reports, and to make constructive suggestions for future practice. METHODS: We surveyed all 77 reports of randomised controlled trials in five general medical journals during November 2006 to January 2007. The numbers and types of figures were determined, and then each Figure was assessed for its style, content, clarity and suitability. As a consequence, guidelines are developed for presenting figures, both in general and for each specific common type of Figure. RESULTS: Most trial reports contained one to three figures, mean 2.3 per article. The four main types were flow diagram, Kaplan Meier plot, Forest plot (for subgroup analyses) and repeated measures over time: these accounted for 92% of all figures published. For each type of figure there is a considerable diversity of practice in both style and content which we illustrate with selected examples of both good and bad practice. Some pointers on what to do, and what to avoid, are derived from our critical evaluation of these articles' use of figures. CONCLUSION: There is considerable scope for authors to improve their use of figures in clinical trial reports, as regards which figures to choose, their style of presentation and labelling, and their specific content. Particular improvements are needed for the four main types of figures commonly used.},
  affiliation = {London School of Hygiene and Tropical Medicine, London, UK. stuart.pocock@lshtm.ac.uk},
  pages = {36},
  volume = {8},
  year = {2007},
  month = {Jan},
  language = {eng},
  date-added = {2010-01-30 16:17:44 +0100},
  date-modified = {2010-07-29 19:54:38 +0200},
  doi = {10.1186/1745-6215-8-36},
  pii = {1745-6215-8-36},
  pmid = {18021449},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Pocock-2007-Trials_Figures%20in%20clinical.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4696},
  rating = {0}
}
@article{Martyn:1989,
  author = {CN Martyn and C Osmond and JA Edwardson and DJP Barker and EC Harris and RF Lacey},
  journal = {Lancet},
  title = {Geographical relation between Alzheimer's disease and aluminium in drinking water},
  abstract = {In a survey of eighty-eight county districts within England and Wales, rates of Alzheimer's disease in people under the age of 70 years were estimated from the records of the computerised tomographic (CT) scanning units that served these districts. Rates were adjusted to compensate for differences in distance from the nearest CT scanning unit and for differences in the size of the population served by the units. Aluminium concentrations in water over the past 10 years were obtained from water authorities and water companies. The risk of Alzheimer's disease was 1.5 times higher in districts where the mean aluminium concentration exceeded 0.11 mg/l than in districts where concentrations were less than 0.01 mg/l. There was no evidence of a relation between other causes of dementia, or epilepsy, and aluminium concentrations in water.},
  number = {8629},
  pages = {59--62},
  volume = {1},
  year = {1989},
  date-added = {2010-01-03 19:36:09 +0100},
  date-modified = {2010-07-29 19:38:44 +0200},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1035},
  rating = {0}
}
@article{Zumbo:1999p4611,
  author = {Bruno D Zumbo},
  title = {A Handbook on the Theory and Methods of Differential Item Functioning (DIF)},
  abstract = {That a test not be biased is an important consideration in the selection and use of any psychological test. That is, it is essential that a test is fair to all applicants, and is not biased against a segment of the applicant population. Bias can result in systematic errors that distort the inferences made in selection and classification. In many cases, test items are biased due to the fact that they contain sources of difficulty that are irrelevant or extraneous to the construct being measured, and these extraneous or irrelevant factors affect performance. Perhaps the item is tapping a secondary factor or factors over-and- above the one of interest. This issue, known as test bias, has been the subject of a great deal of recent research, and a technique called Differential Item Functioning (DIF) analysis has become the new standard in psychometric bias analysis. The purpose of this handbook is to provide a perspective and foundation for DIF, a review and recommendation of a family of statistical techniques (i.e., logistic regression) to conduct DIF analyses, and a series of examples to motivate its use in practice. DIF statistical techniques are based on the principle that if different groups of test-takers (e.g., males and females) have roughly the same level of something (e.g., knowledge), then they should perform similarly on individual test items regardless of group membership. In their essence, all DIF techniques match test takers from different groups according to their total test scores and then investigate how the different groups performed on individual test items to determine whether the test items are creating problems for a particular group.},
  year = {1999},
  date-added = {2010-01-30 15:10:56 +0100},
  date-modified = {2010-07-29 20:46:35 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Zumbo-1999-_A%20Handbook%20on%20the%20Th.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4611},
  rating = {0}
}
@article{Domschke:2010p10538,
  author = {Katharina Domschke and Stephan Stevens and Bettina Pfleiderer and Alexander L Gerlach},
  journal = {Clin Psychol Rev},
  title = {Interoceptive sensitivity in anxiety and anxiety disorders: an overview and integration of neurobiological findings},
  abstract = {Interoceptive sensitivity, particularly regarding heartbeat, has been suggested to play a pivotal role in the pathogenesis of anxiety and anxiety disorders. This review provides an overview of methods which are frequently used to assess heartbeat perception in clinical studies and summarizes presently available results referring to interoceptive sensitivity with respect to heartbeat in anxiety-related traits (anxiety sensitivity, state/trait anxiety), panic disorder and other anxiety disorders. In addition, recent neurobiological studies of neuronal activation correlates of heartbeat perception using positron emission tomography (PET), functional magnetic resonance imaging (fMRI) or electroencephalographic (EEG) techniques are presented. Finally, possible clinical and therapeutic implications (e.g., beta-blockers, biofeedback therapy, cognitive interventions and interoceptive exposure) of the effects of heartbeat perception on anxiety and the anxiety disorders and the potential use of interoceptive sensitivity as an intermediate phenotype of anxiety disorders in future neurobiological and genetic studies are discussed.},
  affiliation = {Department of Psychiatry and Psychotherapy, University of M{\"u}nster, Albert-Schweitzer-Strasse 11, D-48149 M{\"u}nster, Germany. katharina.domschke@ukmuenster.de},
  number = {1},
  pages = {1--11},
  volume = {30},
  year = {2010},
  month = {Feb},
  language = {eng},
  keywords = {Anxiety, Heart Rate, Perception, Emotions, Awareness, Brain, Anxiety Disorders, Humans, Attention},
  date-added = {2010-04-07 11:31:47 +0200},
  date-modified = {2010-04-07 11:31:47 +0200},
  doi = {10.1016/j.cpr.2009.08.008},
  pii = {S0272-7358(09)00114-7},
  pmid = {19751958},
  url = {http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VB8-4X3W499-1&_user=2432700&_coverDate=02%252F28%252F2010&_rdoc=1&_fmt=high&_orig=search&_sort=d&_docanchor=&view=c&_acct=C000057263&_version=1&_urlVersion=0&_userid=2432700&md5=264bc6a3a7572fa71fdc012c99f4c081},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Domschke-2010-Clin%20Psychol%20Rev_Interoceptive%20sensit.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p10538},
  rating = {0}
}
@article{Kerr:2001p13190,
  author = {M K Kerr and G A Churchill},
  journal = {Proc Natl Acad Sci USA},
  title = {Bootstrapping cluster analysis: assessing the reliability of conclusions from microarray experiments},
  abstract = {We introduce a general technique for making statistical inference from clustering tools applied to gene expression microarray data. The approach utilizes an analysis of variance model to achieve normalization and estimate differential expression of genes across multiple conditions. Statistical inference is based on the application of a randomization technique, bootstrapping. Bootstrapping has previously been used to obtain confidence intervals for estimates of differential expression for individual genes. Here we apply bootstrapping to assess the stability of results from a cluster analysis. We illustrate the technique with a publicly available data set and draw conclusions about the reliability of clustering results in light of variation in the data. The bootstrapping procedure relies on experimental replication. We discuss the implications of replication and good design in microarray experiments.},
  affiliation = {The Jackson Laboratory, Bar Harbor, ME 04609, USA.},
  number = {16},
  pages = {8961--5},
  volume = {98},
  year = {2001},
  month = {Jul},
  language = {eng},
  keywords = {Analysis of Variance, Models: Statistical, Oligonucleotide Array Sequence Analysis, Cluster Analysis},
  date-added = {2010-07-01 15:23:42 +0200},
  date-modified = {2010-07-01 15:23:49 +0200},
  doi = {10.1073/pnas.161273698},
  pii = {161273698},
  pmid = {11470909},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Kerr-2001-Proc%20Natl%20Acad%20Sci%20USA_Bootstrapping%20cluste.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13190},
  rating = {5}
}
@article{Hooper:2008p6791,
  author = {D Hooper and J Coughlan and M R Mullen},
  journal = {The Electronic Journal of Business Research Methods},
  title = {Structural Equation Modelling: Guidelines for Determining Model Fit},
  abstract = {The following paper presents current thinking and research on fit indices for structural equation modelling. The paper presents a selection of fit indices that are widely regarded as the most informative indices available to researchers. As well as outlining each of these indices, guidelines are presented on their use. The paper also provides reporting strategies of these indices and concludes with a discussion on the future of fit indices.},
  number = {1},
  pages = {53--60},
  volume = {6},
  year = {2008},
  date-added = {2010-03-05 22:29:06 +0100},
  date-modified = {2010-03-05 22:30:15 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Hooper-2008-The%20Electronic%20Journal%20of%20Business%20Research%20Methods_Structural%20Equation.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6791},
  rating = {0}
}
@inproceedings{Gerber:1994,
  author = {ER Gerber},
  journal = {Proceedings},
  title = {Hidden assumptions: The use of vignettes in cognitive interviewing},
  abstract = {This paper examines the use of vignettes in cognitive particular living situations, and to provide us with interviews as a means of examining this evidence of the way respondents use residence terms. implicit social knowledge. Our intent was to investigate The first aim was accomplished by choosing situations in a broad range of naturally occurring terms and concepts, which we believed that respondents might have difficulty and not just those which appear in the roster questions in defining...},
  year = {1994},
  date-added = {2010-01-03 19:34:17 +0100},
  date-modified = {2010-07-29 19:44:49 +0200},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p931},
  rating = {0}
}
@article{Zhu:2009p3741,
  author = {Chengsong Zhu and Jianming Yu},
  journal = {Genetics},
  title = {Nonmetric multidimensional scaling corrects for population structure in association mapping with different sample types},
  abstract = {Recent research has developed various promising methods to control for population structure in genomewide association mapping of complex traits, but systematic examination of how well these methods perform under different genetic scenarios is still lacking. Appropriate methods for controlling genetic relationships among individuals need to balance the concern of false positives and statistical power, which can vary for different association sample types. We used a series of simulated samples and empirical data sets from cross- and self-pollinated species to demonstrate the performance of several contemporary methods in correcting for different types of genetic relationships encountered in association analysis. We proposed a two-stage dimension determination approach for both principal component analysis and nonmetric multidimensional scaling (nMDS) to capture the major structure pattern in association mapping samples. Our results showed that by exploiting both genotypic and phenotypic information, this two-stage dimension determination approach balances the trade-off between data fit and model complexity, resulting in an effective reduction in false positive rate with minimum loss in statistical power. Further, the nMDS technique of correcting for genetic relationship proved to be a powerful complement to other existing methods. Our findings highlight the significance of appropriate application of different statistical methods for dealing with complex genetic relationships in various genomewide association studies.},
  affiliation = {Department of Agronomy, Kansas State University, Manhattan, Kansas, 66506, USA.},
  number = {3},
  pages = {875--88},
  volume = {182},
  year = {2009},
  month = {Jul},
  language = {eng},
  keywords = {Genetics: Population, Algorithms, Crosses: Genetic, Quantitative Trait: Heritable, Models: Genetic, Phenotype, Polymorphism: Single Nucleotide, Zea mays, Pollination, Genotype, Arabidopsis, Plants, Genome-Wide Association Study, Genome: Plant, Chromosome Mapping},
  date-added = {2010-01-16 20:58:22 +0100},
  date-modified = {2010-01-16 20:58:22 +0100},
  doi = {10.1534/genetics.108.098863},
  pii = {genetics.108.098863},
  pmid = {19414565},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3741},
  rating = {0}
}
@article{Cordell:2009p5278,
  author = {Heather J Cordell},
  journal = {Nat Rev Genet},
  title = {Genome-wide association studies: Detecting gene-gene interactions that underlie human diseases},
  abstract = {Following the identification of several disease-associated polymorphisms by genome-wide association (GWA) analysis, interest is now focusing on the detection of effects that, owing to their interaction with other genetic or environmental factors, might not be identified by using standard single-locus tests. In addition to increasing the power to detect associations, it is hoped that detecting interactions between loci will allow us to elucidate the biological and biochemical pathways that underpin disease. Here I provide a critical survey of the methods and related software packages currently used to detect the interactions between genetic loci that contribute to human genetic disease. I also discuss the difficulties in determining the biological relevance of statistical interactions.},
  affiliation = {Institute of Human Genetics, Newcastle University, International Centre for Life, Central Parkway, Newcastle upon Tyne NE1 3BZ, UK. heather.cordell@ncl.ac.uk.},
  pages = {},
  year = {2009},
  month = {May},
  language = {ENG},
  date-added = {2010-02-09 22:28:36 +0100},
  date-modified = {2010-07-29 19:40:47 +0200},
  doi = {10.1038/nrg2579},
  pii = {nrg2579},
  pmid = {19434077},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5278},
  rating = {0}
}
@article{Fuhrer:1999,
  author = {R Fuhrer and SA Stansfeld and J Chemali and MJ Shipley},
  journal = {Social Science and Medicine},
  title = {Gender, social relations and mental health: prospective findings from an occupational cohort (Whitehall II)},
  abstract = {Gender differences in social support tend to suggest that women have larger social networks and both give and receive more support than men. Nevertheless, although social support has been identified as protective of mental health, women have higher rates of psychological distress than men. We examine the prospective association between social support and psychological distress by gender in a cohort study of middle aged British Civil Servants, the Whitehall II study. In this sample we found that women have a larger number of close persons than men although men have larger social networks. We also found that the effects of marital status, social support within and outside the workplace and social networks on subsequent occurrence of psychological distress were similar for men and women independently of baseline mental health status.},
  number = {1},
  pages = {77--87},
  volume = {48},
  year = {1999},
  date-added = {2010-01-03 19:36:10 +0100},
  date-modified = {2010-01-03 19:36:10 +0100},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1085},
  rating = {0}
}
@article{VanRoy:2003p2313,
  author = {P Van Roy and S Haridi},
  title = {Concepts, Techniques, and Models of Computer Programming},
  year = {2003},
  date-added = {2010-01-10 12:28:48 +0100},
  date-modified = {2010-01-10 12:29:20 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Van%20Roy-2003-_Concepts%20Techniques.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2313},
  rating = {0}
}
@article{Bock:2008p2294,
  author = {H H Bock},
  journal = {Electronic Journ@l for History of Probability and Statistics},
  title = {Origins and extensions of the k-means algorithm in cluster
analysis},
  abstract = {This paper presents a historical view of the well-known k-means al- gorithm that aims at minimizing (approximately) the classical SSQ or variance criterion in cluster analysis . We show to which authors the different (discrete and continuous) versions of this algorithm can be traced back, and which were the underlying applications. Moreover, the paper describes a series of extensions and generalizations of this algorithm (for fuzzy clustering, maximum likelihood cluster- ing, convexity-based criteria,...) that shows the importance and usefulness of the k-means approach and related alternating minimization techniques in data analysis.},
  number = {2},
  volume = {4},
  year = {2008},
  date-added = {2010-01-10 12:08:09 +0100},
  date-modified = {2010-01-10 12:08:55 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Bock-2008-Electronic%20Journ@l%20for%20History%20of%20Probability%20and%20Statistics_Origins%20and%20extensio.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2294},
  rating = {0}
}
@article{Yu:2009p9909,
  author = {Fuli Yu and Alon Keinan and Hua Chen and Russell J Ferland and Robert S Hill and Andre A Mignault and Christopher A Walsh and David Reich},
  journal = {Hum Mol Genet},
  title = {Detecting natural selection by empirical comparison to random regions of the genome},
  abstract = {Historical episodes of natural selection can skew the frequencies of genetic variants, leaving a signature that can persist for many tens or even hundreds of thousands of years. However, formal tests for selection based on allele frequency skew require strong assumptions about demographic history and mutation, which are rarely well understood. Here, we develop an empirical approach to test for signals of selection that compares patterns of genetic variation at a candidate locus with matched random regions of the genome collected in the same way. We apply this approach to four genes that have been implicated in syndromes of impaired neurological development, comparing the pattern of variation in our re-sequencing data with a large-scale, genomic data set that provides an empirical null distribution. We confirm a previously reported signal at FOXP2, and find a novel signal of selection centered at AHI1, a gene that is involved in motor and behavior abnormalities. The locus is marked by many high frequency derived alleles in non-Africans that are of low frequency in Africans, suggesting that selection at this or a closely neighboring gene occurred in the ancestral population of non-Africans. Our study also provides a prototype for how empirical scans for ancient selection can be carried out once many genomes are sequenced.},
  affiliation = {Department of Genetics, Harvard Medical School, Boston, MA, USA. fyu@bcm.edu},
  number = {24},
  pages = {4853--67},
  volume = {18},
  year = {2009},
  month = {Dec},
  language = {eng},
  keywords = {Nerve Tissue Proteins, Sequence Analysis: DNA, Polymorphism: Single Nucleotide, Genome: Human, Humans, Neurogenesis, Models: Genetic, Selection: Genetic, Forkhead Transcription Factors, Haplotypes, Computer Simulation, Receptors: G-Protein-Coupled, Gene Frequency, Adaptor Proteins: Signal Transducing},
  date-added = {2010-03-26 19:35:10 +0100},
  date-modified = {2010-07-29 19:28:52 +0200},
  doi = {10.1093/hmg/ddp457},
  pii = {ddp457},
  pmid = {19783549},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p9909},
  rating = {0}
}
@article{vanLang:2006p1839,
  author = {Natasja D J van Lang and Anne Boomsma and Sjoerd Sytema and Annelies A de Bildt and Dirk W Kraijer and Cees Ketelaars and Ruud B Minderaa},
  journal = {J Child Psychol Psychiatry},
  title = {Structural equation analysis of a hypothesised symptom model in the autism spectrum},
  abstract = {BACKGROUND: Several studies showed a different symptom structure underlying the spectrum of autistic-like disorders from the behaviour triad as mentioned in the DSM-IV. In the present study, a hypothesised symptom model for autism was constructed, based on earlier explorative findings, and was put to a confirmatory test. METHOD: Items from the Autism Diagnostic Interview-Revised (ADI-R) were used to examine the goodness of fit of the DSM-IV model, the hypothesised symptom model, and two additional models for autism. All models were tested in a group of 255 verbal and nonverbal individuals with minor to severe autistic symptomatology. RESULTS: The DSM-IV model encountered estimation problems. Conversely, the hypothesised symptom model had no such problems and proved to have a better fit to the sample data than the two additional models for autism. However, some of the observed variables were weak indicators of the three latent factors in the model. CONCLUSIONS: The hypothesised symptom model appeared to be a plausible model in a group of individuals with a broad range of autistic behaviours and levels of functioning. Nevertheless, the stability of the model needs further examination in a larger group of individuals with disorders in the autism spectrum, and with varying degrees of intellectual functioning.},
  affiliation = {University of Groningen, Department of Child and Adolescent Psychiatry, The Netherlands.},
  number = {1},
  pages = {37--44},
  volume = {47},
  year = {2006},
  month = {Jan},
  language = {eng},
  keywords = {Female, Autistic Disorder, Factor Analysis: Statistical, Humans, Interview: Psychological, Child, Severity of Illness Index, Male},
  date-added = {2010-01-10 10:31:54 +0100},
  date-modified = {2010-07-29 19:32:47 +0200},
  doi = {10.1111/j.1469-7610.2005.01434.x},
  pii = {JCPP1434},
  pmid = {16405639},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/van%20Lang-2006-J%20Child%20Psychol%20Psychiatry_Structural%20equation.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1839},
  read = {Yes},
  rating = {4}
}
@article{Kottner:2010p12848,
  author = {J Kottner and L Audig{\'e} and S Brorson and A Donner and B J Gajewski and A Hrobjartsson and C Roberts and M Shoukri and D L Streiner},
  journal = {Journal of Clinical Epidemiology},
  title = {Guidelines for Reporting Reliability and Agreement Studies (GRRAS) were proposed},
  abstract = {Objective: Results of reliability and agreement studies are intended to provide information about the amount of error inherent in any diagnosis, score, or measurement. The level of reliability and agreement among users of scales, instruments, or classifications is widely unknown. Therefore, there is a need for rigorously conducted interrater and intrarater reliability and agreement studies. Information about sample selection, study design, and statistical analysis is often incomplete. Because of inadequate reporting, interpretation and synthesis of study results are often difficult. Widely accepted criteria, standards, or guidelines for reporting reliability and agreement in the health care and medical field are lacking. The objective was to develop guidelines for reporting reliability and agreement studies.
Study Design and Setting: Eight experts in reliability and agreement investigation developed guidelines for reporting.
Results: Fifteen issues that should be addressed when reliability and agreement are reported are proposed. The issues correspond to the headings usually used in publications.
Conclusion: The proposed guidelines intend to improve the quality of reporting.},
  year = {2010},
  date-added = {2010-06-21 20:12:12 +0200},
  date-modified = {2010-06-21 20:13:28 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Kottner-2010-Journal%20of%20Clinical%20Epidemiology_Guidelines%20for%20Repor.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12848},
  rating = {0}
}
@article{Jenkinson:2001,
  author = {C Jenkinson and R Fitzpatrick and A Garratt and V Peto and S Stewart-Brown},
  journal = {J Neurol Neurosurg Psychiatry},
  title = {Can item response theory reduce patient burden when measuring health status in neurological disorders? Results from Rasch analysis of the SF-36 physical functioning scale (PF-10).},
  abstract = {BACKGROUND: Indices of physical function may have a hierarchy of items. In cases where this can be demonstrated it may be possible to reduce patient burden by asking them to complete only those items which relate directly to their own level of ability. OBJECTIVES: To determine whether statistical procedures, operationalising what is known as item response theory (IRT), can be used to assess the unidimensionality of the 10 item physical functioning domain of the SF-36 in patients with Parkinson's disease and motor neuron disease, and, secondly, to determine whether it would be possible to administer subsets of items to certain patients, on the basis of their replies to other items in the scale, thereby reducing patient burden. METHODS: Rasch analysis, a form of IRT methodology, of the 10 item physical functioning domain (PF-10) in two neurological patient samples was undertaken and the results compared with results of a Rasch analysis of data gained from a population survey (the third Oxford healthy lifestyles survey). RESULTS: Evidence from the analyses suggests that the PF-10 does not form a perfect hierarchy on a unidimensional scale. However, certain items seem to form a hierarchy, and responses to some of them are contingent on responses to the other items. CONCLUSIONS: Rasch analysis of the PF-10 in neurological patients has indicated that certain items of the scale are hierarchically ordered, and consequently not all respondents would need to complete them all: indeed those most severely ill would be required to complete less items than those with only limited disabilities. The implications of this are discussed.},
  affiliation = {Health Services Research Unit, Department of Public Health, University of Oxford, Institute of Health Sciences, Headington, Oxford OX3 7LF, UK. crispin.jenkinson@dphpc.ox.ac.uk},
  number = {2},
  pages = {220--224},
  volume = {71},
  year = {2001},
  month = {Aug},
  language = {eng},
  date-added = {2010-01-03 19:38:22 +0100},
  date-modified = {2010-01-03 19:38:22 +0100},
  pmid = {11459897},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1132},
  rating = {0}
}
@article{Groenvold:2006p7351,
  author = {Mogens Groenvold and Morten Aa Petersen and Neil K Aaronson and Juan I Arraras and Jane M Blazeby and Andrew Bottomley and Peter M Fayers and Alexander de Graeff and Eva Hammerlid and Stein Kaasa and Mirjam A G Sprangers and Jakob B Bjorner and EORTC Quality of Life Group},
  journal = {Eur J Cancer},
  title = {The development of the EORTC QLQ-C15-PAL: a shortened questionnaire for cancer patients in palliative care},
  abstract = {This study aimed at developing a shortened version of the EORTC QLQ-C30, one of the most widely used health-related quality of life questionnaires in oncology, for palliative care research. The study included interviews with 41 patients and 66 health care professionals in palliative care to determine the appropriateness, relevance and importance of the various domains of the QLQ-C30. Item response theory methods were used to shorten scales. Patients and health care professionals rated pain, physical function, emotional function, fatigue, global health status/quality of life, nausea/vomiting, appetite, dyspnoea, constipation, and sleep as most important. Therefore, these scales/items were retained in the questionnaire. Four scales were shortened without reducing measurement precision. Important dimensions not covered by the questionnaire were identified. The resulting 15-item EORTC QLQ-C15-PAL is a 'core questionnaire' for palliative care. Depending on the research questions, it may be supplemented by additional items, modules or questionnaires.},
  affiliation = {Research Unit, Department of Palliative Medicine, Bispebjerg Hospital, 23, Bispebjerg Bakke, DK-2400 Copenhagen NV, Denmark. mg02@bbh.hosp.dk},
  number = {1},
  pages = {55--64},
  volume = {42},
  year = {2006},
  month = {Jan},
  language = {eng},
  keywords = {Neoplasms, Adult, Quality of Life, Vomiting, Aged: 80 and over, Constipation, Eating Disorders, Nausea, Palliative Care, Cognition Disorders, Health Status, Fatigue, Pain, Cost of Illness, Questionnaires, Emotions, Interpersonal Relations, Activities of Daily Living, Humans, Middle Aged, Dyspnea, Aged},
  date-added = {2010-03-10 20:24:44 +0100},
  date-modified = {2010-07-29 20:13:56 +0200},
  doi = {10.1016/j.ejca.2005.06.022},
  pii = {S0959-8049(05)00616-7},
  pmid = {16162404},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7351},
  rating = {0}
}
@article{Clarke:2004p9427,
  author = {Sally-Ann Clarke and Christine Eiser},
  journal = {Health Qual Life Outcomes},
  title = {The measurement of health-related quality of life (QOL) in paediatric clinical trials: a systematic review},
  abstract = {BACKGROUND: The goal of much care in chronic childhood illness is to improve quality of life (QOL). However, surveys suggest QOL measures are not routinely included. In addition, there is little consensus about the quality of many QOL measures. OBJECTIVES: To determine the extent to which quality of life (QOL) measures are used in paediatric clinical trials and evaluate the quality of measures used. DESIGN: Systematic literature review. REVIEW METHODS: Included paediatric trials published in English between 1994 and 2003 involving children and adolescents up to the age of 20 years, and use of a standardised QOL measure. Data Sources included MEDLINE, CINAHL, EMB Reviews, AMED, BNI, PSYCHINFO, the Cochrane library, Internet, and reference lists from review articles. RESULTS: We identified 18 trials including assessment of QOL (4 Asthma, 4 Rhinitis, 2 Dermatitis, and single studies of Eczema, Cystic fibrosis, Otis media, Amblyopia, Diabetes, Obesity associated with a brain tumour, Idiopathic short stature, and Congenital agranulocytosis). In three trials, parents rated their own QOL but not their child's. Fourteen different QOL measures were used but only two fulfilled our minimal defined criteria for quality. CONCLUSIONS: This review confirms previous reports of limited use of QOL measures in paediatric clinical trials. Our review provides information about availability and quality of measures which will be of especial value to trial developers.},
  affiliation = {Department of Psychology, University of Sheffield, Western Bank, Sheffield, UK. s.a.clarke@sheffield.ac.uk},
  pages = {66},
  volume = {2},
  year = {2004},
  month = {Jan},
  language = {eng},
  keywords = {Humans, Quality of Life, Pediatrics, Adolescent Psychology, Child Psychology, Sickness Impact Profile, Clinical Trials as Topic, Adolescent, Chronic Disease, Child, Psychometrics},
  date-added = {2010-03-23 18:57:07 +0100},
  date-modified = {2010-03-23 18:57:07 +0100},
  doi = {10.1186/1477-7525-2-66},
  pii = {1477-7525-2-66},
  pmid = {15555077},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Clarke-2004-Health%20and%20Quality%20of%20Life%20Outcomes_The%20measurement%20of%20h.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p9427},
  rating = {0}
}
@article{Beckles:2007,
  author = {Gloria L A Beckles and David F Williamson and Arleen F Brown and Edward W Gregg and Andrew J Karter and Catherine Kim and R Adams Dudley and Monika M Safford and Mark R Stevens and Theodore J Thompson},
  journal = {Med Care},
  title = {Agreement between self-reports and medical records was only fair in a cross-sectional study of performance of annual eye examinations among adults with diabetes in managed care.},
  abstract = {BACKGROUND: Despite consensus about the importance of measuring quality of diabetes care and the widespread use of self-reports and medical records to assess quality, little is known about the degree of agreement between these data sources. OBJECTIVES: To evaluate agreement between self-reported and medical record data on annual eye examinations and to identify factors associated with agreement. RESEARCH DESIGN AND SUBJECTS: Data from interviews and medical records were available for 8409 adults with diabetes who participated in the baseline round of the Translating Research Into Action for Diabetes (TRIAD) Study. MEASURES: Agreement between self-reports and medical records was evaluated as concordance and Cohen's kappa coefficient. RESULTS: Self-reports indicated a higher performance of annual dilated eye examinations than did medical records (75.9% vs. 38.8%). Concordance between the data sources was 57.9%. Agreement was only fair (kappa coefficient = 0.25; 95% confidence interval, 0.23-0.26). Nearly two-thirds (64.6%) of discordance was due to lack of evidence in the medical record to support self-reported performance of the procedure. After adjustment, agreement was most strongly related to health plan (chi = 977.9, df = 9; P < 0.0001), and remained significantly better for 3 of the 10 health plans (P < 0.00001) and for persons younger than 45 years of age (P = 0.00002). CONCLUSIONS: The low level of agreement between self-report and medical records suggests that many providers of diabetes care do not have easily available accurate information on the eye examination status of their patients.},
  affiliation = {Division of Diabetes Translation, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia 30341, USA.},
  number = {9},
  pages = {876--883},
  volume = {45},
  year = {2007},
  month = {Sep},
  language = {eng},
  date-added = {2010-01-03 19:38:21 +0100},
  date-modified = {2010-07-29 19:39:29 +0200},
  doi = {10.1097/MLR.0b013e3180ca95fa},
  pii = {00005650-200709000-00010},
  pmid = {17712258},
  url = {http://dx.doi.org/10.1097/MLR.0b013e3180ca95fa},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1168},
  rating = {0}
}
@article{Erfurth:2005p4390,
  author = {Andreas Erfurth and Alexander L Gerlach and Nikolaus Michael and Ines Boenigk and Inga Hellweg and Salvatore Signoretta and Kareen Akiskal and Hagop S Akiskal},
  journal = {J Affect Disord},
  title = {Distribution and gender effects of the subscales of a German version of the temperament autoquestionnaire briefTEMPS-M in a university student population},
  abstract = {BACKGROUND: This paper examines the distribution of the temperamental characteristics and gender effects of a new autoquestionnaire developed by Akiskal et al. (TEMPS-A) in its German briefTEMPS-M version. METHODS: As described in a companion article [J. Affect. Disord. 85 (2005), 53, this issue], based on a study population of 1056 students of the Westf{\"a}lische-Wilhelms-Universit{\"a}t in M{\"u}nster, Germany, we constructed the briefTEMPS-M. In the present paper we report on the basic descriptive statistics of the five subscales of the briefTEMPS (depressive, cyclothymic, hyperthymic, irritable, and anxious), as well as gender differences. RESULTS: Except for the hyperthymic, these subscales are capable of representing the full range of temperament in a sample of German students. Characteristics of the distribution (skewness, kurtosis) of the subscales are well in acceptable limits. We found higher depressive, cyclothymic, and anxious, as well as lower hyperthymic, temperament values in women as compared to men. Cut-off scores to determine extreme groups are provided. To render our results comparable to a similar study using the interview version of the TEMPS-I in an Italian student population [J. Affect. Disord. 47 (1998) 1; J. Affect. Disord. 51 (1998) 7], we computed the rates for dominant temperaments based on the z scores +2 S.D., and obtained the following: depressive, 4.7%; cyclothymic, 4.7%; hyperthymic, 2.1%; irritable, 4.0%; and anxious, 4.2%. CONCLUSIONS: The briefTEMPS-M is a potentially valuable scale to quickly assess temperament in research, clinical and normal samples.},
  affiliation = {Department of Psychiatry, M{\"u}nster University Hospital, Albert-Schweitzer-Str. 11, 48129 M{\"u}nster, Germany. andreas.erfurth@bkh-augsburg.de},
  number = {1-2},
  pages = {71--6},
  volume = {85},
  year = {2005},
  month = {Mar},
  language = {eng},
  keywords = {Psychometrics, Reproducibility of Results, Students, Affective Symptoms, Computer Graphics, Female, Adult, Male, Reference Values, Language, Temperament, Cross-Cultural Comparison, Adolescent, Universities, Sex Factors, Humans, Italy, Germany, Personality Inventory, Personality Assessment},
  date-added = {2010-01-28 16:32:03 +0100},
  date-modified = {2010-07-29 20:18:17 +0200},
  doi = {10.1016/j.jad.2003.07.003},
  pii = {S0165032703002532},
  pmid = {15780677},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4390},
  rating = {0}
}
@article{Byrne:2007p7513,
  author = {Enda Byrne and Maria Stillitano and Christopher J Williams and Joe C Christian},
  journal = {Behav Genet},
  title = {The influence of twin pair permutation on likelihood-based-estimates of genetic variance that require ordering of twin-pairs},
  abstract = {Results from analyses of twin data that use models assuming a bivariate distribution of twin values will change when twins within pairs are reordered. We examined the effect of twin pair ordering on additive genetic variance estimates and hypothesis tests, from a bivariate normal model, both via simulation and through examination of real twin data. The simulations generated twin data for varying sample sizes and amounts of additive genetic and common environmental variance. The real data sets had sample sizes of 60 or less per zygosity. The results indicate that for moderate or large size studies, the effects of twin pair ordering are unlikely to greatly change the results of the data analysis; but for small studies the results can be sensitive to twin pair ordering. We therefore suggest that methods, not sensitive to within twin-pair differences be compared to the results obtained from twin-pair ordering. Methods not influenced by twin-pair ordering include least squares methods or covariance matrices approaches as described by Carey (2005, Behav Genet 35:667-670) or Guo and Wang (2002, Behav Genet 32:37-49).},
  affiliation = {Trinity College Dublin, Dublin, Ireland.},
  number = {4},
  pages = {617--20},
  volume = {37},
  year = {2007},
  month = {Jul},
  language = {eng},
  keywords = {Likelihood Functions, Computer Simulation, Humans, Twins, Models: Genetic, Genetic Variation, Mutation},
  date-added = {2010-03-10 20:53:33 +0100},
  date-modified = {2010-07-29 20:09:06 +0200},
  doi = {10.1007/s10519-007-9154-3},
  pmid = {17473978},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Byrne-2007-Behav%20Genet_The%20influence%20of%20twi.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7513},
  rating = {0}
}
@article{Eysenck:1994,
  author = {HJ Eysenck},
  journal = {British Medical Journal},
  title = {Meta-analysis and its problems},
  abstract = {Including all relevant material - good, bad, and indifferent - in meta -analysis admits the subjective judgments that meta-analysis was designed to avoid. Several problems arise in meta-analysis: regressions are often non -linear; effects are often multivariate rather than univariate; coverage can be restricted; bad studies may be included; the data summarised may not be homogeneous; grouping different causal factors may lead to meaningless estimates of effects; and the theory-directed approach may obscure discrepancies. Meta-analysis may not be the one best method for studying the diversity of fields for which it has been used. Why do we undertake systematic reviews of a given field? The most important reason is perhaps that we are concerned about a particular theory and wish to know how the evidence for and against stacks up. There are also practical reasons; single studies often use small numbers of subjects, and basing our estimates of effect sizes on large numbers of studies drastically lowers the fiducial limits around our estimates. Systematic reviews can be of several different kinds: traditional reviews, often not very systematic, and frequently biased; meta-analyses, including (we hope) all relevant material, good, bad, and different, and leading to an estimate of effect size*RF 1-3*; best-evidence synthesis4; and the hypothetico-deductive approach,5 in which the effort is directed at evaluating the evidence for and against a given theory, in an attempt to solve the problem of why contradictory results appear, rather than simply averaging often incompatible data.},
  pages = {789--792},
  volume = {309},
  year = {1994},
  date-added = {2010-01-03 19:36:10 +0100},
  date-modified = {2010-01-03 19:36:10 +0100},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1089},
  rating = {0}
}
@inproceedings{Bianco:2005,
  author = {Maryse Bianco and Philippe Dessus and Beno{\^\i}t Lemaire and Sonia Mandin and Patrick Mendelsohn},
  journal = {Proceedings},
  title = {Mod{\'e}lisation des processus de hi{\'e}rarchisation et d'application de macror{\`e}gles et conception d'un prototype d'aide au r{\'e}sum{\'e}},
  year = {2005},
  date-added = {2010-01-10 11:33:25 +0100},
  date-modified = {2010-01-10 11:33:25 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Bianco-2005-Proceedings_Mod%C3%A9lisation%20des%20pro.PDF},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2085},
  rating = {0}
}
@article{Simianer:1989p6978,
  author = {H Simianer and L R Schaeffer},
  journal = {Genet Sel Evol},
  title = {Estimation of covariance components between one continuous and one binary trait},
  abstract = {A method is described to estimate variance and covariance components in a multiple trait situation with one continuous and one binary trait. An underlying bivariate normal distribution is assumed with one variable dichotomized on the observable scale through a fixed threshold. A mixed linear model is applied to the underlying scale, and Bayesian arguments are employed to derive estimation procedures for both location and dispersion parameters. This leads to a nonlinear system of equations similar to the mixed model equations for observations that have been transformed by a Cholesky decomposition of the residual variance-covariance matrix so that the residual covariance between the two transformed traits is zero, thereby simplifying construction of the multiple trait mixed model equations. The procedures for estimating genetic variances and covariances and the residual variance for the continuous trait are equivalent to restricted maximum likelihood in the multivariate normal case. The residual correlation is estimated using a maximum likelihood approach. Suitable computing strategies are indicated and a simulation study is giventoillustratetheuseofthemethod.Theimpactofsmallsubclasssizeontheestimates is seen to be a serious drawback to the proposed method. Possible generalizations of the method and potential problems in its practical application are discussed.},
  pages = {303--315},
  volume = {21},
  year = {1989},
  date-added = {2010-03-06 19:44:45 +0100},
  date-modified = {2010-03-06 19:45:40 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Simianer-1989-Genet%20Sel%20Evol_Estimation%20of%20covari.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6978},
  rating = {0}
}
@article{Williams:2010p12779,
  author = {Valerie S L Williams and Robert J Morlock and Douglas Feltner},
  journal = {Health Qual Life Outcomes},
  title = {Psychometric evaluation of a visual analog scale for the assessment of anxiety},
  abstract = {ABSTRACT: BACKGROUND: : Fast-acting medications for the management of anxiety are important to patients and society. Measuring early onset, however, requires a sensitive and clinically responsive tool. This study evaluates the psychometric properties of a patient-reported Global Anxiety - Visual Analog Scale (GA-VAS). METHOD: : Data from a double-blind, randomized, placebo-controlled study of lorazepam and paroxetine in patients with Generalized Anxiety Disorder were analyzed to assess the reliability, validity, responsiveness, and utility of the GA-VAS. The GA-VAS was completed at clinic visits and at home during the first week of treatment. Targeted psychometric analyses - test-retest reliabilities, validity correlations, responsiveness statistics, and minimum important differences - were conducted. RESULTS: : The GA-VAS correlates well with other anxiety measures, at Week 4, r=0.60 (p<0.0001) with the Hamilton Rating Scale for Anxiety and r=0.74 (p<0.0001) with the Hospital Anxiety and Depression Scale - Anxiety subscale. In terms of convergent and divergent validity, the GA-VAS correlated -0.54 (p<0.0001), -0.48 (p<0.0001), and -0.68 (p<0.0001) with the SF-36 Emotional Role, Social Function, and Mental Health subscales, respectively, but correlated much lower with the SF-36 physical functioning subscales. Preliminary minimum important difference estimates cluster between 10 and 15 mm. CONCLUSIONS: : The GA-VAS is capable of validly and effectively capturing a reduction in anxiety as quickly as 24 hours post-dose.},
  number = {1},
  pages = {57},
  volume = {8},
  year = {2010},
  month = {Jun},
  language = {ENG},
  date-added = {2010-06-18 20:45:54 +0200},
  date-modified = {2010-06-18 20:45:54 +0200},
  doi = {10.1186/1477-7525-8-57},
  pii = {1477-7525-8-57},
  pmid = {20529361},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Williams-2010-Health%20and%20Quality%20of%20Life%20Outcomes_Psychometric%20evaluat-1.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12779},
  rating = {0}
}
@article{Grezes:2009p13989,
  author = {J Gr{\`e}zes and B Wicker and S Berthoz and B de Gelder},
  journal = {Neuropsychologia},
  title = {A failure to grasp the affective meaning of actions in autism spectrum disorder subjects},
  abstract = {The ability to grasp emotional messages in everyday gestures and respond to them is at the core of successful social communication. The hypothesis that abnormalities in socio-emotional behavior in people with autism are linked to a failure to grasp emotional significance conveyed by gestures was explored. We measured brain activity using fMRI during perception of fearful or neutral actions and showed that whereas similar activation of brain regions known to play a role in action perception was revealed in both autistics and controls, autistics failed to activate amygdala, inferior frontal gyrus and premotor cortex when viewing gestures expressing fear. Our results support the notion that dysfunctions in this network may contribute significantly to the characteristic communicative impairments documented in autism.},
  affiliation = {Laboratoire de Neurosciences Cognitives, INSERM U960 {\&} DEC, Ecole Normale Sup{\'e}rieure, Paris, France. julie.grezes@ens.fr},
  number = {8-9},
  pages = {1816--25},
  volume = {47},
  year = {2009},
  month = {Jul},
  language = {eng},
  keywords = {Photic Stimulation, Emotions, Magnetic Resonance Imaging, Hand Strength, Image Processing: Computer-Assisted, Young Adult, Adolescent, Oxygen, Humans, Autistic Disorder, Female, Adult, Middle Aged, Brain, Neuropsychological Tests, Male, Brain Mapping},
  date-added = {2010-08-04 09:20:25 +0200},
  date-modified = {2010-08-04 09:20:25 +0200},
  doi = {10.1016/j.neuropsychologia.2009.02.021},
  pii = {S0028-3932(09)00087-6},
  pmid = {19428413},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Gr%C3%A8zes-2009-Neuropsychologia_A%20failure%20to%20grasp%20t.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13989},
  rating = {0}
}
@article{Clayton:2009p2283,
  author = {David G Clayton},
  journal = {Genome Med},
  title = {Sex chromosomes and genetic association studies},
  abstract = {ABSTRACT: Although the literature concerning statistical testing for genotype-phenotype association in family-based and population-based studies is very extensive, until recently the sex chromosomes have received little attention. Here it is shown that the X chromosome in particular presents special problems with respect to efficient analysis of mixed-sex population studies, and as a result of X inactivation. This paper reviews recent developments in approaching these problems.},
  affiliation = {Wellcome Trust/Juvenile Diabetes Research Foundation Diabetes and Inflammation Laboratory, Cambridge University, Department of Medical Genetics, Cambridge Institute for Medical Research, Wellcome Trust/MRC Building, Addenbrooke's Hospital, Cambridge CB2 0XY, UK. david.clayton@cimr.cam.ac.uk.},
  number = {11},
  pages = {110},
  volume = {1},
  year = {2009},
  month = {Nov},
  language = {ENG},
  date-added = {2010-01-10 12:01:10 +0100},
  date-modified = {2010-01-10 12:01:10 +0100},
  doi = {10.1186/gm110},
  pii = {gm110},
  pmid = {19939292},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Clayton-2009-Genome%20Med_Sex%20chromosomes%20and.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2283},
  rating = {0}
}
@article{Coons:2009p8806,
  author = {Stephen Joel Coons and Chad J Gwaltney and Ron D Hays and J Jason Lundy and Jeff A Sloan and Dennis A Revicki and William R Lenderking and David Cella and Ethan Basch and ISPOR ePRO Task Force},
  journal = {Value Health},
  title = {Recommendations on evidence needed to support measurement equivalence between electronic and paper-based patient-reported outcome (PRO) measures: ISPOR ePRO Good Research Practices Task Force report},
  abstract = {BACKGROUND: Patient-reported outcomes (PROs) are the consequences of disease and/or its treatment as reported by the patient. The importance of PRO measures in clinical trials for new drugs, biological agents, and devices was underscored by the release of the US Food and Drug Administration's draft guidance for industry titled "Patient-Reported Outcome Measures: Use in Medical Product Development to Support Labeling Claims." The intent of the guidance was to describe how the FDA will evaluate the appropriateness and adequacy of PRO measures used as effectiveness end points in clinical trials. In response to the expressed need of ISPOR members for further clarification of several aspects of the draft guidance, ISPOR's Health Science Policy Council created three task forces, one of which was charged with addressing the implications of the draft guidance for the collection of PRO data using electronic data capture modes of administration (ePRO). The objective of this report is to present recommendations from ISPOR's ePRO Good Research Practices Task Force regarding the evidence necessary to support the comparability, or measurement equivalence, of ePROs to the paper-based PRO measures from which they were adapted. METHODS: The task force was composed of the leadership team of ISPOR's ePRO Working Group and members of another group (i.e., ePRO Consensus Development Working Group) that had already begun to develop recommendations regarding ePRO good research practices. The resulting task force membership reflected a broad array of backgrounds, perspectives, and expertise that enriched the development of this report. The prior work became the starting point for the Task Force report. A subset of the task force members became the writing team that prepared subsequent iterations of the report that were distributed to the full task force for review and feedback. In addition, review beyond the task force was sought and obtained. Along with a presentation and discussion period at an ISPOR meeting, a draft version of the full report was distributed to roughly 220 members of a reviewer group. The reviewer group comprised individuals who had responded to an emailed invitation to the full membership of ISPOR. This Task Force report reflects the extensive internal and external input received during the 16-month good research practices development process. RESULTS/RECOMMENDATIONS: An ePRO questionnaire that has been adapted from a paper-based questionnaire ought to produce data that are equivalent or superior (e.g., higher reliability) to the data produced from the original paper version. Measurement equivalence is a function of the comparability of the psychometric properties of the data obtained via the original and adapted administration mode. This comparability is driven by the amount of modification to the content and format of the original paper PRO questionnaire required during the migration process. The magnitude of a particular modification is defined with reference to its potential effect on the content, meaning, or interpretation of the measure's items and/or scales. Based on the magnitude of the modification, evidence for measurement equivalence can be generated through combinations of the following: cognitive debriefing/testing, usability testing, equivalence testing, or, if substantial modifications have been made, full psychometric testing. As long as only minor modifications were made to the measure during the migration process, a substantial body of existing evidence suggests that the psychometric properties of the original measure will still hold for the ePRO version. Hence, an evaluation limited to cognitive debriefing and usability testing only may be sufficient. However, where more substantive changes in the migration process has occurred, confirming that the adaptation to the ePRO format did not introduce significant response bias and that the two modes of administration produce essentially equivalent results is necessary. Recommendations regarding the study designs and statistical approaches for assessing measurement equivalence are provided. CONCLUSIONS: The electronic administration of PRO measures offers many advantages over paper administration. We provide a general framework for decisions regarding the level of evidence needed to support modifications that are made to PRO measures when they are migrated from paper to ePRO devices. The key issues include: 1) the determination of the extent of modification required to administer the PRO on the ePRO device and 2) the selection and implementation of an effective strategy for testing the measurement equivalence of the two modes of administration. We hope that these good research practice recommendations provide a path forward for researchers interested in migrating PRO measures to electronic data collection platforms.},
  affiliation = {Center for Health Outcomes and PharmacoEconomic Research, College of Pharmacy, University of Arizona, Tucson, AZ 85721-0202, USA. coons@pharmacy.arizona.edu},
  number = {4},
  pages = {419--29},
  volume = {12},
  year = {2009},
  month = {Jun},
  language = {eng},
  keywords = {Leadership, Questionnaires, Software, United States Food and Drug Administration, Quality of Life, United States, Evidence-Based Medicine, Randomized Controlled Trials as Topic, Paper, Cognition, Outcome Assessment (Health Care), Statistics as Topic, Benchmarking, Decision Making, Psychometrics, Medical Records Systems: Computerized, Cross-Over Studies, Feasibility Studies, Humans},
  date-added = {2010-03-22 12:09:13 +0100},
  date-modified = {2010-03-22 12:09:13 +0100},
  doi = {10.1111/j.1524-4733.2008.00470.x},
  pii = {VHE470},
  pmid = {19900250},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8806},
  rating = {0}
}
@article{Zwick:1990,
  author = {Rebecca Zwick},
  journal = {Journal of Educational Statistics},
  title = {When do item reponse function and Mantel-Haenszel definitions of Differential Item Functioning coincide?},
  number = {3},
  pages = {185--197},
  volume = {15},
  year = {1990},
  date-added = {2010-01-10 11:33:24 +0100},
  date-modified = {2010-07-29 20:46:26 +0200},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2102},
  rating = {0}
}
@article{Liao:2010p12782,
  author = {Yi-Chu Liao and Hsiu-Fen Lin and Yuh-Cherng Guo and Ming-Lung Yu and Ching-Kuan Liu and Suh-Hang Hank Juo},
  journal = {BMC Med Genet},
  title = {Sex-differential genetic effect of phosphodiesterase 4D (PDE4D) on carotid atherosclerosis},
  abstract = {ABSTRACT: BACKGROUND: The phosphodiesterase 4D (PDE4D) gene was reported as a susceptibility gene to stroke. The genetic effect might be attributed to its role in modulating the atherogenic process in the carotid arteries. Using carotid intima-media thickness (IMT) and plaque index as phenotypes, the present study sought to determine the influence of this gene on subclinical atherosclerosis. METHODS: Carotid ultrasonography was performed on 1013 stroke-free subjects who participated in the health screening programs at the Kaohsiung Medical University Hospital (age 52.6 +- 12.2; 47.6% men). Genotype distribution was compared among high- (plaque index>= 4), low-risk (index=1-3), and reference (index=0) groups. We analyzed continuous IMT data and further dichotomized IMT data using mean plus one standard deviation as the cutoff level. Because the plaque prevalence and IMT values displayed a notable difference between men and women, we carried out sex-specific analyses in addition to analyzing the overall data. Rs702553 at the PDE4D gene was selected because it confers a risk for young stroke in our previous report. Previous young stroke data (190 cases and 211 controls) of additional 532 control subjects without ultrasonic data were shown as a cross-validation for the genetic effect. RESULTS: In the overall analyses, the rare homozygote of rs702553 led to OR of 3.1 (p = 0.034) for a plaque index >= 4. When subjects were stratified by sex, the genetic effect was only evident in men but not in women. Comparing male subjects with plaque index >= 4 and plaque index = 0, the TT genotype was over-represented (27.6% vs. 13.4%, p = 0.008). For dichotomized IMT data in men, the TT genotype had an OR of 2.1 (p = 0.032) for a thicker IMT at the common carotid artery compared with the (AA+AT) genotypes. In women, neither IMT nor plaque index was associated with rs702553. Similarly, SNP rs702553 was only significant in young stroke men (OR=1.8, p=0.025) but not in women (p= 0.27). CONCLUSIONS: The present study demonstrates a sex-differential effect of PDE4D on IMT, plaque index and stroke, which highlights its influence on various aspects of atherogenesis.},
  number = {1},
  pages = {93},
  volume = {11},
  year = {2010},
  month = {Jun},
  language = {ENG},
  date-added = {2010-06-18 20:46:42 +0200},
  date-modified = {2010-06-18 20:46:42 +0200},
  doi = {10.1186/1471-2350-11-93},
  pii = {1471-2350-11-93},
  pmid = {20540798},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Liao-2010-BMC%20Med%20Genet_Sex-differential%20gen.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12782},
  rating = {0}
}
@article{Lee:2009p1453,
  author = {Brian K Lee and Justin Lessler and Elizabeth A Stuart},
  journal = {Stat Med},
  title = {Improving propensity score weighting using machine learning},
  abstract = {Machine learning techniques such as classification and regression trees (CART) have been suggested as promising alternatives to logistic regression for the estimation of propensity scores. The authors examined the performance of various CART-based propensity score models using simulated data. Hypothetical studies of varying sample sizes (n=500, 1000, 2000) with a binary exposure, continuous outcome, and 10 covariates were simulated under seven scenarios differing by degree of non-linear and non-additive associations between covariates and the exposure. Propensity score weights were estimated using logistic regression (all main effects), CART, pruned CART, and the ensemble methods of bagged CART, random forests, and boosted CART. Performance metrics included covariate balance, standard error, per cent absolute bias, and 95 per cent confidence interval (CI) coverage. All methods displayed generally acceptable performance under conditions of either non-linearity or non-additivity alone. However, under conditions of both moderate non-additivity and moderate non-linearity, logistic regression had subpar performance, whereas ensemble methods provided substantially better bias reduction and more consistent 95 per cent CI coverage. The results suggest that ensemble methods, especially boosted CART, may be useful for propensity score weighting. Copyright (c) 2009 John Wiley {\&} Sons, Ltd.},
  affiliation = {Department of Epidemiology and Biostatistics, Drexel University School of Public Health, Philadelphia, PA, U.S.A.},
  pages = {},
  year = {2009},
  month = {Dec},
  language = {ENG},
  date-added = {2010-01-07 12:24:27 +0100},
  date-modified = {2010-01-07 12:24:27 +0100},
  doi = {10.1002/sim.3782},
  pmid = {19960510},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Lee-2009-Stat%20Med_Improving%20propensity.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1453},
  rating = {0}
}
@article{Martin:1996p2805,
  author = {J K Martin and D S Hirschberg},
  title = {Small sample statistics for classification error rates II: Confidence intervals and significance tests},
  year = {1996},
  date-added = {2010-01-13 14:49:36 +0100},
  date-modified = {2010-01-13 14:50:29 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Martin-1996-_Small%20sample%20statist.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2805},
  rating = {0}
}
@article{Lopez:2008p6045,
  author = {Beatriz L{\'o}pez and Susan R Leekam and Gerda R J Arts},
  journal = {Autism},
  title = {How central is central coherence? Preliminary evidence on the link between conceptual and perceptual processing in children with autism},
  abstract = {This study aimed to test the assumption drawn from weak central coherence theory that a central cognitive mechanism is responsible for integrating information at both conceptual and perceptual levels. A visual semantic memory task and a face recognition task measuring use of holistic information were administered to 15 children with autism and 16 typically developing children. If there is a central integration mechanism, performance on the two tasks should be positively associated. No relationship was found, however, between the two abilities in the comparison group and, unexpectedly, a strong significant inverse correlation was found in the autism group. Classification data further confirmed this finding and indicated the possibility of the presence of subgroups in autism. The results add to emerging evidence suggesting that central coherence is not a unitary construct.},
  affiliation = {University of the West of England, UK. lopez@uwe.ac.uk},
  number = {2},
  pages = {159--71},
  volume = {12},
  year = {2008},
  month = {Mar},
  language = {eng},
  keywords = {Autistic Disorder, Visual Perception, Case-Control Studies, Neuropsychological Tests, Reaction Time, Memory Disorders, Cognition Disorders, Child, Concept Formation, Perceptual Disorders, Humans},
  date-added = {2010-02-19 17:01:56 +0100},
  date-modified = {2010-02-19 17:01:56 +0100},
  doi = {10.1177/1362361307086662},
  pii = {12/2/159},
  pmid = {18308765},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6045},
  rating = {0}
}
@article{Erosheva:2006p1770,
  author = {E A Erosheva},
  title = {Latent class representation of the Grade of Membership model},
  abstract = {Latent class and the Grade of Membership (GoM) models are two examples of latent structure models. Latent class models are discrete mixture models. The GoM model has been originally developed as an extension of latent class models to a continuous mixture. This note describes a constrained latent class model which is equivalent to the GoM model, and provides a detailed proof of this equivalence. Implications for model fitting and interpretation are discussed.},
  affiliation = {Department of Statistics, University of Washington, Box 354322 Seattle, WA 98195-4322, U. S. A.},
  year = {2006},
  keywords = {Class membership, Stochastic subject, Mixture models, Latent structure, Contingency tables},
  date-added = {2010-01-09 21:30:05 +0100},
  date-modified = {2010-01-09 21:31:14 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Erosheva-2006-_Latent%20class%20represe.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1770},
  rating = {0}
}
@article{Zhao:2004p11368,
  author = {Wei Zhao and Changxing Ma and James M Cheverud and Rongling Wu},
  journal = {Physiol Genomics},
  title = {A unifying statistical model for QTL mapping of genotype x sex interaction for developmental trajectories},
  abstract = {Most organisms display remarkable differences in morphological, anatomical, and developmental features between the two sexes. It has been recognized that these sex-dependent differences are controlled by an array of specific genetic factors, mediated through various environmental stimuli. In this paper, we present a unifying statistical model for mapping quantitative trait loci (QTL) that are responsible for sexual differences in growth trajectories during ontogenetic development. This model is derived within the maximum likelihood context, incorporated by sex-stimulated differentiation in growth form that is described by mathematical functions. A typical structural model is implemented to approximate time-dependent covariance matrices for longitudinal traits. This model allows for a number of biologically meaningful hypothesis tests regarding the effects of QTL on overall growth trajectories or particular stages of development. It is particularly powerful to test whether and how the genetic effects of QTL are expressed differently in different sexual backgrounds. Our model has been employed to map QTL affecting body mass growth trajectories in both male and female mice of an F2 population derived from the large (LG/J) and small (SM/J) mouse strains. We detected four growth QTL on chromosomes 6, 7, 11, and 15, two of which trigger different effects on growth curves between the two sexes. All the four QTL display significant genotype-sex interaction effects on the timing of maximal growth rate in the ontogenetic growth of mice. The implications of our model for studying the genetic architecture of growth trajectories and its extensions to some more general situations are discussed.},
  affiliation = {Department of Statistics, University of Florida, Gainesville, Florida 32611, USA.},
  number = {2},
  pages = {218--27},
  volume = {19},
  year = {2004},
  month = {Oct},
  language = {eng},
  keywords = {Models: Statistical, Quantitative Trait Loci, Gene Expression Regulation: Developmental, Genotype, Male, Animals, Sex Determination (Genetics), Female, Mice, Chromosome Mapping, Body Mass Index},
  date-added = {2010-04-26 23:08:16 +0200},
  date-modified = {2010-04-26 23:08:16 +0200},
  doi = {10.1152/physiolgenomics.00129.2004},
  pii = {00129.2004},
  pmid = {15304622},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Zhao-2004-Physiol%20Genomics_A%20unifying%20statistic.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11368},
  rating = {0}
}
@article{Wang:2006p4363,
  author = {Lu-Yong Wang and D Fasulo},
  journal = {Conf Proc IEEE Eng Med Biol Soc},
  title = {A fast boosting-based screening method for large-scale association study in complex traits with genetic heterogeneity},
  abstract = {Genome-wide association study for complex diseases will generate massive amount of single nucleotide polymorphisms (SNPs) data. Univariate statistical test (i.e. Fisher exact test) was used to single out non-associated SNPs. However, the disease-susceptible SNPs may have little marginal effects in population and are unlikely to retain after the univariate tests. Also, model-based methods are impractical for large-scale dataset. Moreover, genetic heterogeneity makes the traditional methods harder to identify the genetic causes of diseases. A more recent random forest method provides a more robust method for screening the SNPs in thousands scale. However, for more large-scale data, i.e., Affymetrix Human Mapping 100K GeneChip data, a faster screening method is required to screening SNPs in whole-genome large scale association analysis with genetic heterogeneity. We propose a boosting-based method for rapid screening in large-scale analysis of complex traits in the presence of genetic heterogeneity. It provides a relatively fast and fairly good tool for screening and limiting the candidate SNPs for further more complex computational modeling task.},
  affiliation = {Integrated Data Syst. Dept., Siemens Corp. Res. Inc., Princeton, NJ 08540, USA. luyong.wang@siemens.com},
  pages = {5771--4},
  volume = {1},
  year = {2006},
  month = {Jan},
  language = {eng},
  keywords = {Oligonucleotide Array Sequence Analysis, Linkage (Genetics), Algorithms, Genome: Human, Linkage Disequilibrium, Humans, Phenotype, Software, Models: Genetic, Programming Languages, Genetic Heterogeneity, Models: Statistical, Polymorphism: Single Nucleotide, Genomics, Computational Biology},
  date-added = {2010-01-28 13:30:52 +0100},
  date-modified = {2010-01-28 13:30:52 +0100},
  doi = {10.1109/IEMBS.2006.260585},
  pmid = {17946332},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4363},
  rating = {0}
}
@book{Turner:1984,
  author = {CF Turner and E Martin},
  journal = {Book},
  title = {Surveying subjective phenomena},
  year = {1984},
  date-added = {2010-01-03 19:34:17 +0100},
  date-modified = {2010-07-29 19:21:41 +0200},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p946},
  rating = {0}
}
@article{Novembre:2009p7186,
  author = {John Novembre and Anna Di Rienzo},
  journal = {Nat Rev Genet},
  title = {Spatial patterns of variation due to natural selection in humans},
  abstract = {Empowered by technology and sampling efforts designed to facilitate genome-wide association mapping, human geneticists are now studying the geography of genetic variation in unprecedented detail. With high genomic coverage and geographic resolution, these studies are identifying loci with spatial signatures of selection, such as extreme levels of differentiation and correlations with environmental variables. Collectively, patterns at these loci are beginning to provide new insights into the process of human adaptation. Here, we review the challenges of these studies and emerging results, including how human population structure has influenced the response to novel selective pressures.},
  affiliation = {Department of Ecology and Evolutionary Biology, Interdepartmental Program in Bioinformatics, University of California-Los Angeles, Los Angeles, California 90095-1606, USA. jnovembre@ucla.edu},
  number = {11},
  pages = {745--55},
  volume = {10},
  year = {2009},
  month = {Nov},
  language = {eng},
  keywords = {Humans, Selection: Genetic, Genetic Variation, Genome-Wide Association Study, Animals},
  date-added = {2010-03-06 21:18:17 +0100},
  date-modified = {2010-03-06 21:18:17 +0100},
  doi = {10.1038/nrg2632},
  pii = {nrg2632},
  pmid = {19823195},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7186},
  rating = {0}
}
@article{Mohamed:2010p5896,
  author = {S Mohamed and K Heller and Z Ghahramani},
  title = {Sparse Exponential Family Latent Variable Models},
  year = {2010},
  date-added = {2010-02-17 21:14:06 +0100},
  date-modified = {2010-02-17 21:15:10 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Mohamed-2010-_Sparse%20Exponential%20F.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5896},
  rating = {0}
}
@article{Terracciano:2008p1448,
  author = {A Terracciano and S Sanna and M Uda and B Deiana and G Usala and F Busonero and A Maschio and M Scally and N Patriciu and W-M Chen and M A Distel and E P Slagboom and Dorret I Boomsma and S Villafuerte and E Sliwerska and M Burmeister and N Amin and A C J W Janssens and C M van Duijn and D Schlessinger and Gon{\c c}alo R Abecasis and P T Costa},
  journal = {Mol Psychiatry},
  title = {Genome-wide association scan for five major dimensions of personality},
  abstract = {Personality traits are summarized by five broad dimensions with pervasive influences on major life outcomes, strong links to psychiatric disorders and clear heritable components. To identify genetic variants associated with each of the five dimensions of personality we performed a genome-wide association (GWA) scan of 3972 individuals from a genetically isolated population within Sardinia, Italy. On the basis of the analyses of 362 129 single-nucleotide polymorphisms we found several strong signals within or near genes previously implicated in psychiatric disorders. They include the association of neuroticism with SNAP25 (rs362584, P=5 x 10(-5)), extraversion with BDNF and two cadherin genes (CDH13 and CDH23; Ps<5 x 10(-5)), openness with CNTNAP2 (rs10251794, P=3 x 10(-5)), agreeableness with CLOCK (rs6832769, P=9 x 10(-6)) and conscientiousness with DYRK1A (rs2835731, P=3 x 10(-5)). Effect sizes were small (less than 1% of variance), and most failed to replicate in the follow-up independent samples (N up to 3903), though the association between agreeableness and CLOCK was supported in two of three replication samples (overall P=2 x 10(-5)). We infer that a large number of loci may influence personality traits and disorders, requiring larger sample sizes for the GWA approach to confidently identify associated genetic variants.Molecular Psychiatry advance online publication, 28 October 2008; doi:10.1038/mp.2008.113.},
  affiliation = {1National Institute on Aging, NIH, Baltimore, MD, USA.},
  pages = {},
  year = {2008},
  month = {Oct},
  language = {ENG},
  date-added = {2010-01-07 12:22:16 +0100},
  date-modified = {2010-07-29 20:25:51 +0200},
  doi = {10.1038/mp.2008.113},
  pii = {mp2008113},
  pmid = {18957941},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Terracciano-2008-Mol%20Psychiatry_Genome-wide%20associat.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1448},
  read = {Yes},
  rating = {3}
}
@article{McKinley:1985p2702,
  author = {R L McKinley and C N Mills},
  journal = {Applied Psychological Measurement},
  title = {A Comparison of Several Goodness-of-Fit Statistics},
  number = {1},
  pages = {49--57},
  volume = {9},
  year = {1985},
  date-added = {2010-01-13 10:21:10 +0100},
  date-modified = {2010-07-29 19:16:53 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/McKinley-1985-Applied%20Psychological%20Measurement_A%20Comparison%20of%20Seve.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2702},
  rating = {0}
}
@article{Gelman:2010p7203,
  author = {A Gelman},
  title = {Causality and Statistical Learning},
  year = {2010},
  date-added = {2010-03-06 21:20:31 +0100},
  date-modified = {2010-03-06 21:20:50 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Gelman-2010-_Causality%20and%20Statis.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7203},
  rating = {0}
}
@article{DeYoung:2010p13852,
  author = {Colin G DeYoung and Jacob B Hirsh and Matthew S Shane and Xenophon Papademetris and Nallakkandi Rajeevan and Jeremy R Gray},
  journal = {Psychol Sci},
  title = {Testing predictions from personality neuroscience: brain structure and the big five},
  abstract = {We used a new theory of the biological basis of the Big Five personality traits to generate hypotheses about the association of each trait with the volume of different brain regions. Controlling for age, sex, and whole-brain volume, results from structural magnetic resonance imaging of 116 healthy adults supported our hypotheses for four of the five traits: Extraversion, Neuroticism, Agreeableness, and Conscientiousness. Extraversion covaried with volume of medial orbitofrontal cortex, a brain region involved in processing reward information. Neuroticism covaried with volume of brain regions associated with threat, punishment, and negative affect. Agreeableness covaried with volume in regions that process information about the intentions and mental states of other individuals. Conscientiousness covaried with volume in lateral prefrontal cortex, a region involved in planning and the voluntary control of behavior. These findings support our biologically based, explanatory model of the Big Five and demonstrate the potential of personality neuroscience (i.e., the systematic study of individual differences in personality using neuroscience methods) as a discipline.},
  affiliation = {University of Minnesota, 75 East River Rd., Minneapolis, MN 55455, USA. ccdeyoung@umn.edu},
  number = {6},
  pages = {820--8},
  volume = {21},
  year = {2010},
  month = {Jun},
  language = {eng},
  date-added = {2010-07-29 17:44:14 +0200},
  date-modified = {2010-07-29 19:46:15 +0200},
  doi = {10.1177/0956797610370159},
  pii = {0956797610370159},
  pmid = {20435951},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13852},
  rating = {0}
}
@article{Dipple:2000p5530,
  author = {K M Dipple and E R McCabe},
  journal = {Am J Hum Genet},
  title = {Phenotypes of patients with "simple" Mendelian disorders are complex traits: thresholds, modifiers, and systems dynamics},
  number = {6},
  pages = {1729--35},
  volume = {66},
  year = {2000},
  month = {Jun},
  language = {eng},
  keywords = {Genetic Diseases: Inborn, Phenotype, Environment, Animals, Genetic Variation, Mutation, Syndrome, Humans, Models: Genetic, Genotype},
  date-added = {2010-02-12 15:29:50 +0100},
  date-modified = {2010-02-12 15:29:50 +0100},
  doi = {10.1086/302938},
  pii = {S0002-9297(07)63525-3},
  pmid = {10793008},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Dipple-2000-Am%20J%20Hum%20Genet_Phenotypes%20of%20patien.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5530},
  rating = {0}
}
@article{Vivien:2010p12011,
  author = {M Vivien and R Sabatier},
  title = {Generalized orthogonal multiple co-inertia analysis (-PLS): new multiblock component and regression methods},
  date-added = {2010-05-23 22:30:54 +0200},
  date-modified = {2010-05-23 22:32:19 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Vivien--_Generalized%20orthogon.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12011},
  rating = {3}
}
@article{Hays:1993p9577,
  author = {R D Hays and R Anderson and D Revicki},
  journal = {Qual Life Res},
  title = {Psychometric considerations in evaluating health-related quality of life measures},
  abstract = {How does one determine if a measure of health-related quality of life (HRQL) is adequate for clinical trials? Psychometric methods are frequently used to answer this question. What is psychometrics all about? In this paper we address these questions, discussing common psychometric evaluation procedures applied to HRQL measures. Specifically, we discuss issues regarding the evaluation of reliability and validity (including responsiveness).},
  affiliation = {RAND, Social Policy Department, Santa Monica, CA 90407-2138.},
  number = {6},
  pages = {441--9},
  volume = {2},
  year = {1993},
  month = {Dec},
  language = {eng},
  keywords = {Cross-Cultural Comparison, Questionnaires, Health Surveys, Reproducibility of Results, Humans, Psychometrics, Quality of Life},
  date-added = {2010-03-23 20:58:29 +0100},
  date-modified = {2010-07-29 19:48:30 +0200},
  pmid = {8161978},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Hays-1993-Qual%20Life%20Res_Psychometric%20conside.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p9577},
  rating = {4}
}
@article{Bartlett:2009p12030,
  author = {James C Bartlett and Kalyan K Shastri and Herv{\'e} Abdi and Marsha Neville-Smith},
  journal = {J Exp Psychol Learn Mem Cogn},
  title = {Component structure of individual differences in true and false recognition of faces},
  abstract = {Principal-component analyses of 4 face-recognition studies uncovered 2 independent components. The first component was strongly related to false-alarm errors with new faces as well as to facial "conjunctions" that recombine features of previously studied faces. The second component was strongly related to hits as well as to the conjunction/new difference in false-alarm errors. The pattern of loadings on both components was impressively invariant across the experiments, which differed in age range of participants, stimulus set, list length, facial orientation, and the presence versus absence of familiarized lures along with conjunction and entirely new lures in the recognition test. Taken together, the findings show that neither component was exclusively related to discrimination, criterion, configural processing, featural processing, context recollection, or familiarity. Rather, the data are consistent with a neuropsychological model that distinguishes frontal and occipitotemporal contributions to face recognition memory. Within the framework of the model, findings showed that frontal and occipitotemporal contributions are discernible from the pattern of individual differences in behavioral performance among healthy young adults.},
  affiliation = {School of Behavioral and Brain Sciences, University of Texas at Dallas, Campus Mailbox GR41, Richardson, TX 75080-3021, USA. jbartlet@utdallas.edu},
  number = {5},
  pages = {1207--30},
  volume = {35},
  year = {2009},
  month = {Sep},
  language = {eng},
  keywords = {Facial Expression, Repression, Humans, Principal Component Analysis, Male, Adult, Recognition (Psychology), Analysis of Variance, Neuropsychological Tests, ROC Curve, Photic Stimulation, Female, Judgment, Young Adult, Factor Analysis: Statistical, Discrimination (Psychology), Pattern Recognition: Visual, Face, Adolescent, Middle Aged},
  date-added = {2010-05-24 10:25:57 +0200},
  date-modified = {2010-07-29 20:14:08 +0200},
  doi = {10.1037/a0016368},
  pii = {2009-12193-009},
  pmid = {19686016},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Bartlett-2009-J%20Exp%20Psychol%20Learn%20Mem%20Cogn_Component%20structure.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12030},
  rating = {0}
}
@article{Anonymous:2003p11759,
  title = {Bayesian Inference and Sampling Theory},
  year = {2003},
  date-added = {2010-05-23 10:06:22 +0200},
  date-modified = {2010-05-23 10:07:18 +0200},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/2003-_Bayesian%20Inference%20a.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11759},
  read = {Yes},
  rating = {0}
}
@article{Lustgarten:2008p12954,
  author = {Jonathan L Lustgarten and Vanathi Gopalakrishnan and Himanshu Grover and Shyam Visweswaran},
  journal = {AMIA  Annual Symposium proceedings / AMIA Symposium AMIA Symposium},
  title = {Improving classification performance with discretization on biomedical datasets},
  abstract = {Discretization acts as a variable selection method in addition to transforming the continuous values of the variable to discrete ones. Machine learning algorithms such as Support Vector Machines and Random Forests have been used for classification in high-dimensional genomic and proteomic data due to their robustness to the dimensionality of the data. We show that discretization can help improve significantly the classification performance of these algorithms as well as algorithms like Na{\"\i}ve Bayes that are sensitive to the dimensionality of the data.},
  affiliation = {Department of Biomedical Informatics, University of Pittsburgh, Pittsburgh, PA, USA.},
  pages = {445--9},
  year = {2008},
  month = {Jan},
  language = {eng},
  keywords = {Database Management Systems, Decision Support Techniques, Pattern Recognition: Automated, Artificial Intelligence, Algorithms, Databases: Factual},
  date-added = {2010-06-25 22:08:47 +0200},
  date-modified = {2010-06-25 22:08:50 +0200},
  pmid = {18999186},
  url = {http://www.ncbi.nlm.nih.gov/sites/entrez?Db=pubmed&Cmd=Retrieve&list_uids=18999186&dopt=abstractplus},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Lustgarten-2008-AMIA%20Annual%20Symposium%20proceedings%20AMIA%20Symposium%20AMIA%20Symposium_Improving%20classifica.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12954},
  rating = {0}
}
@article{Gierl:2004p4613,
  author = {M Gierl and J Bisanz and Y Y Li},
  title = {Using the Multidimensionality-Based DIF Analysis Paradigm to Study Cognitive Skills that Elicit Group Differences: A Critique},
  year = {2004},
  date-added = {2010-01-30 15:13:49 +0100},
  date-modified = {2010-01-30 15:15:02 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Gierl-2004-_Using%20the%20Multidimen.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4613},
  rating = {0}
}
@article{Nandakumar:1998,
  author = {R Nandakumar and F Yu and H-H Li and W Stout},
  journal = {Applied Psychological Measurement},
  title = {Assessing Unidimensionality of Polytomous Data},
  abstract = {This study investigated the performance of Poly-DIMTEST (PD) to assess unidimensionality of test data produced by polytomous items. Two types of polytomous data were considered: (1) tests in which all items had the same number of response categories, and (2) tests in which items had a mixed number of response categories. Test length, sample size, and the type of correlation matrix (used in factor analysis for selecting ATI subset items) were varied in Type I error analyses. For the power study, the correlation between Os and the item-0 loadings were also varied. The results showed that PD was able to confirm unidimensionality for unidimensional simulated test data, with the average observed level of significance slightly below the nominal level. PD was also highly effective in detecting lack of unidimensionality in various two-dimensional tests. As expected, power increased as the sample size and test length increased, and the correlation between the Os decreased. The results also demonstrated that use of Pearson correlations to select ATI items led to equally good or better performance than using polychoric correlations; therefore Pearson correlations are recommended for future use.},
  number = {2},
  pages = {99--115},
  volume = {22},
  year = {1998},
  date-added = {2010-01-03 19:38:21 +0100},
  date-modified = {2010-01-03 19:38:22 +0100},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1180},
  rating = {4}
}
@mastersthesis{Davis:2002,
  author = {Laurie Laughlin Davis},
  journal = {Masters Thesis},
  title = {Strategies for controlling item exposure in computerized adaptive testing with polytomously scored items},
  affiliation = {University of Texas at Austin},
  year = {2002},
  month = {May},
  date-added = {2010-01-10 11:33:24 +0100},
  date-modified = {2010-01-10 11:33:25 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Davis-2002-Masters%20Thesis_Strategies%20for%20contr.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2021},
  rating = {0}
}
@article{Schwender:2007p1757,
  author = {H Schwender},
  title = {Statistical Analysis of Genotype and Gene Expression Data},
  year = {2007},
  date-added = {2010-01-09 21:12:05 +0100},
  date-modified = {2010-01-09 21:12:36 +0100},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Schwender-2007-_Statistical%20Analysis.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1757},
  rating = {0}
}
@article{Lin:2009p8347,
  author = {Jin-Mann S Lin and Dana J Brimmer and Elizabeth M Maloney and Ernestina Nyarko and Rhonda Belue and William C Reeves},
  journal = {Popul Health Metr},
  title = {Further validation of the Multidimensional Fatigue Inventory in a US adult population sample},
  abstract = {ABSTRACT: BACKGROUND: The Multidimensional Fatigue Inventory (MFI-20) was developed in 1995. Since then, it has been widely used in cancer research and cancer-related illnesses but has never been validated in fatiguing illnesses or in a large US population-selected sample. In this study, we sought to examine the reliability and validity of the MFI-20 in the population of the state of Georgia, USA. Further, we assessed whether the MFI-20 could serve as a complementary diagnostic tool in chronically fatigued and unwell populations. METHODS: The data derive from a cross-sectional population-based study investigating the prevalence of chronic fatigue syndrome (CFS) in Georgia. The study sample was comprised of three diagnostic groups: CFS-like (292), chronically unwell (269), and well (222). Participants completed the MFI-20 along with several other measures of psychosocial functioning, including the Medical Outcomes Survey Short Form-36 (SF-36), the Zung Self-Rating Depression Scale (SDS), and the Spielberger State-Trait Anxiety Inventory (STAI). We assessed the five MFI-20 subscales using several criteria: inter-item correlations, corrected item-total correlations, internal consistency reliability (Cronbach's alpha coefficients), construct validity, discriminant (known-group) validity, floor/ceiling effects, and convergent validity through correlations with the SF-36, SDS, and STAI instruments. RESULTS: Averaged inter-item correlations ranged from 0.38 to 0.61, indicating no item redundancy. Corrected item-total correlations for all MFI-20 subscales were greater than 0.30, and Cronbach's alpha coefficients achieved an acceptable level of 0.70. No significant floor/ceiling effect was observed. Factor analysis demonstrated factorial complexity. The MFI-20 also distinguished clearly between three diagnostic groups on all subscales. Furthermore, correlations with depression (SDS), anxiety (STAI), and functional impairment (SF-36) demonstrated strong convergent validity. CONCLUSIONS: This study provides support for the MFI-20 as a valuable tool when used in chronically unwell and well populations. It also suggests that the MFI-20 could serve as a complementary diagnostic tool in fatiguing illnesses, such as CFS.},
  affiliation = {Chronic Viral Diseases Branch, National Center for Zoonotic, Vector-borne and Enteric Diseases, Centers for Disease Control and Prevention, Mail Stop A-15, 1600 Clifton Rd, NE, Atlanta, GA, USA. dwe3@cdc.gov.},
  pages = {18},
  volume = {7},
  year = {2009},
  month = {Jan},
  language = {eng},
  date-added = {2010-03-21 12:50:11 +0100},
  date-modified = {2010-07-29 19:44:07 +0200},
  doi = {10.1186/1478-7954-7-18},
  pii = {1478-7954-7-18},
  pmid = {20003524},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Lin-2009-Popul%20Health%20Metr_Further%20validation%20o.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8347},
  rating = {0}
}
@article{Willke:2004p4449,
  author = {Richard J Willke and Laurie B Burke and Pennifer Erickson},
  journal = {Controlled Clinical Trials},
  title = {Measuring treatment impact: a review of patient-reported outcomes and other efficacy endpoints in approved product labels},
  abstract = {CONTEXT: The term "patient-reported outcomes" (PROs) has evolved to include any endpoint derived from patient reports, whether collected in the clinic, in a diary, or by other means, including single-item outcome measures, event logs, symptom reports, formal instruments to measure health-related quality of life (HRQL), health status, adherence, and satisfaction with treatment. This term coincides with the explicit interest from drug development researchers and regulatory authorities in the appropriate utilization and reporting of treatment impact measures. OBJECTIVE: To determine the level and nature of use of PROs compared to other types of effectiveness endpoints in approved product labeling for new drugs recently approved in the United States. DESIGN AND SOURCES: Review and analysis of effectiveness endpoints as reported in clinical study descriptions in approved product labeling of new molecular entities (NMEs) approved in the United States from 1997 through 2002. MAIN OUTCOME MEASURES: Effectiveness study endpoints reported in approved product labeling that fall into the following categories of measurement: PROs, clinician-reported outcomes (CROs), and laboratory test/device measurement endpoints. RESULTS: PROs were reported in 64 (30%) of the 215 product labels reviewed. Clinician-reported outcomes were reported most frequently (62%) followed by laboratory/device endpoints (50%). PROs were the only type of endpoint used in the FDA-approved label for 23 products. Formal multiitem PRO scales were cited 22 times. Use of PROs is most common in antiinflammatory, CNS, gastrointestinal, respiratory, allergic conjunctivitis, and urologic therapy areas. The frequency of reported PRO use over this period did not change. CONCLUSION: PROs, although quite variable as a class of study endpoints, were found to have a significant role in the development and evaluation of new medicines. More formal guidance from the FDA about use of such measures along with continued collaboration by PRO researchers to develop and disseminate standards will enhance the appropriate use of PROs in future drug development and labeling.},
  affiliation = {Pfizer Inc., Bridgewater, NJ 08807, USA. richard.j.willke@pfizer.com},
  number = {6},
  pages = {535--52},
  volume = {25},
  year = {2004},
  month = {Dec},
  language = {eng},
  keywords = {Health Status, Drug Labeling, Reproducibility of Results, Drug Therapy, Patient Satisfaction, Pharmaceutical Preparations, Endpoint Determination, Humans, Psychometrics, Outcome Assessment (Health Care), Clinical Trials as Topic, Questionnaires, Quality of Life, Drug Prescriptions},
  date-added = {2010-01-29 21:36:34 +0100},
  date-modified = {2010-01-29 21:36:34 +0100},
  doi = {10.1016/j.cct.2004.09.003},
  pii = {S0197-2456(04)00091-1},
  pmid = {15588741},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Willke-2004-Controlled%20Clinical%20Trials_Measuring%20treatment.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4449},
  rating = {0}
}
@article{Hudziak:2004p9137,
  author = {James J Hudziak and C E M van Beijsterveldt and Robert R Althoff and Catherine Stanger and David C Rettew and Elliot C Nelson and Richard D Todd and Meike Bartels and Dorret I Boomsma},
  journal = {Arch Gen Psychiatry},
  title = {Genetic and environmental contributions to the Child Behavior Checklist Obsessive-Compulsive Scale: a cross-cultural twin study},
  abstract = {CONTEXT: We have reported elsewhere on the development of an 8-item Obsessive-Compulsive Scale (OCS) contained in the Child Behavior Checklist (CBCL) to identify children who meet criteria for DSM-IV obsessive-compulsive disorder. Twin studies of obsessive-compulsive disorder have indicated a significant genetic component to its expression. OBJECTIVE: To determine the relative contributions of genetic and environmental influences on childhood obsessive-compulsive behavior using the CBCL OCS in twin samples. DESIGN: The CBCL data were received by survey of twins in the Netherlands Twin Registry (NTR) and the Missouri Twin Study (USA/MOTWIN). SETTING: General community twin samples. PARTICIPANTS: Participants were 4246 twin pairs aged 7 years, 2841 aged 10 years, and 1562 aged 12 years (who also participated in the study at 7 and 10 years of age) from the NTR and 1461 mixed-age twin pairs (average age, approximately 9 years) from the USA/MOTWIN. MAIN OUTCOME MEASURES: Model fitting to test for genetic and environmental influences, sex differences, and sibling interaction/rater contrast effects on the CBCL OCS. RESULTS: In each case, the best-fitting model was one that indicated significant additive genetic influences (range, 45%-58%; 95% confidence interval [CI], 45%-61%), and unique environmental influences (range, 42%-55%; 95% CI, 39%-55%), with shared environmental influences in the NTR sample aged 12 years (16%). Sex differences were seen in the mixed-age USA/MOTWIN model, but not in the NTR samples. No evidence of dominance, sibling interaction, or rater-contrast effects was seen. These data were relatively consistent across age and cultures. CONCLUSIONS: The CBCL OCS is influenced by genetic factors (approximately 55%) and unique environmental factors (approximately 45%) in the younger sample, with common environmental influences only at 12 years of age. These effects do not vary with differences in sex or sibling interaction/rater contrast effects. Our data reveal higher genetic influences for obsessive-compulsive behavior and do not demonstrate genetic differences across sex.},
  affiliation = {Department of Psychiatry, University of Vermont, Burlington; Vrije University, Amsterdam, The Netherlands. james.hudziak@uvm.edu},
  number = {6},
  pages = {608--16},
  volume = {61},
  year = {2004},
  month = {Jun},
  language = {eng},
  keywords = {Phenotype, Netherlands, Models: Genetic, Gene Expression, Twins: Monozygotic, Personality Inventory, Missouri, Twins: Dizygotic, Obsessive-Compulsive Disorder, Male, Female, Sex Factors, Age Factors, Psychiatric Status Rating Scales, Humans, United States, Social Environment, Cross-Cultural Comparison, Molecular Biology, Child, Diseases in Twins},
  date-added = {2010-03-22 13:29:46 +0100},
  date-modified = {2010-03-22 13:29:46 +0100},
  doi = {10.1001/archpsyc.61.6.608},
  pii = {61/6/608},
  pmid = {15184240},
  local-url = {file://localhost/Users/chl/Dropbox/Papers/Hudziak-2004-Arch%20Gen%20Psychiatry_Genetic%20and%20environm.pdf},
  uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p9137},
  rating = {0}
}
@article{Cordell:2003p5246,
  author = {Heather J Cordell and Joanna M M Howson and David G Clayton},
  journal = {BMC Genet},
  title = {Linkage analysis of a derived glucose phenotype in the Genetic Analysis Workshop 13 simulated data using a variety of Haseman-Elston based regression methods},
  abstract = {A variety of Haseman-Elston type regression procedures were used to perform a genome scan across five chromosomes, using replicates 1-5 of the Genetic Analysis Workshop 13 simulated data. The traits of interest were variables corresponding to 'baseline' and 'slope' effects derived from the fasting glucose phenotypes. Performance in terms of detecting the locations of known trait loci was poor for