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@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 = {10.1

repository: sergiud/bibtex-spirit

repo_name: sergiud/bibtex-spirit

gha_license_id: MIT