text:
ropbox/Papers/Harrell-2009-Addict%20Behav_Predictors%20of%20alcoho.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p9166},
rating = {0}
}

@article{Keightley:2005p10130,
author = {Peter D Keightley and Martin J Lercher and Adam Eyre-Walker},
journal = {PLoS Biol},
title = {Evidence for widespread degradation of gene control regions in hominid genomes},
abstract = {Although sequences containing regulatory elements located close to protein-coding genes are often only weakly conserved during evolution, comparisons of rodent genomes have implied that these sequences are subject to some selective constraints. Evolutionary conservation is particularly apparent upstream of coding sequences and in first introns, regions that are enriched for regulatory elements. By comparing the human and chimpanzee genomes, we show here that there is almost no evidence for conservation in these regions in hominids. Furthermore, we show that gene expression is diverging more rapidly in hominids than in murids per unit of neutral sequence divergence. By combining data on polymorphism levels in human noncoding DNA and the corresponding human-chimpanzee divergence, we show that the proportion of adaptive substitutions in these regions in hominids is very low. It therefore seems likely that the lack of conservation and increased rate of gene expression divergence are caused by a reduction in the effectiveness of natural selection against deleterious mutations because of the low effective population sizes of hominids. This has resulted in the accumulation of a large number of deleterious mutations in sequences containing gene control elements and hence a widespread degradation of the genome during the evolution of humans and chimpanzees.},
affiliation = {School of Biological Sciences, University of Edinburgh, United Kingdom. Hominid.Degradation@spambob.net <Hominid.Degradation@spambob.net>},
number = {2},
pages = {e42},
volume = {3},
year = {2005},
month = {Feb},
language = {eng},
keywords = {Evolution: Molecular, Models: Genetic, Genome: Human, Muridae, Gene Expression Regulation, Genome, Chromosome Mapping, Hominidae, Humans, Animals},
date-added = {2010-03-31 20:35:15 +0200},
date-modified = {2010-07-29 19:43:53 +0200},
doi = {10.1371/journal.pbio.0030042},
pmid = {15678168},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Keightley-2005-PLoS%20Biol_Evidence%20for%20widespr.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p10130},
rating = {0}
}

@article{Osowiecki:2000p9550,
author = {D M Osowiecki and R A Cohen and K M Morrow and R H Paul and C C Carpenter and T Flanigan and R J Boland},
journal = {AIDS},
title = {Neurocognitive and psychological contributions to quality of life in HIV-1-infected women},
abstract = {OBJECTIVES: The purpose of this study was to examine the impact of neurocognitive and emotional distress and immune system dysfunction on quality of life in women with HIV. METHODS: Thirty-six HIV-seropositive women were administered measures of mood status (Profile of Mood States), quality of life (Multidimensional Quality of Life Questionnaire for Persons with HIV) and cognitive function. CD4 cell counts were obtained as an indicator of immune system status. RESULTS: Regression analyses revealed that independent of severity of emotional distress, neurocognitive deficits on measures of executive control and speed of information processing were associated with reduced quality of life. Emotional status also was associated with quality of life and together with neurocognitive performance accounted for most of the variance associated with quality of life. Reduced CD4 cell count was significantly associated with neurocognitive deficits, but not severity of emotional distress or quality of life. CONCLUSIONS: Quality of life among women who are infected with HIV is strongly influenced by both neurocognitive and emotional status, as women with the greatest neurocognitive impairment and emotional distress report the poorest quality of life.},
affiliation = {Department of Psychiatry and Human Behavior, Brown University Medical School, Providence Rhode Island, USA.},
number = {10},
pages = {1327--32},
volume = {14},
year = {2000},
month = {Jul},
language = {eng},
keywords = {Stress: Psychological, Humans, HIV-1, Affect, Quality of Life, HIV Infections, Adult, Female, CD4 Lymphocyte Count, Cognition, Cognition Disorders},
date-added = {2010-03-23 20:48:29 +0100},
date-modified = {2010-07-29 19:12:25 +0200},
pmid = {10930146},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Osowiecki-2000-AIDS_Neurocognitive%20and%20p.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p9550},
rating = {0}
}

@article{Maris:2004aa,
author = {Gunter Maris and Timo M Bechger},
title = {AN INTRODUCTION TO THE DA-T GIBBS SAMPLER FOR THE TWO-PARAMETER LOGISTIC (2PL) MODEL AND ITS APPLICATION},
year = {2004},
month = {Apr},
date-added = {2010-01-03 19:39:03 +0100},
date-modified = {2010-07-29 20:43:29 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Maris-2004-_AN%20INTRODUCTION%20TO%20T.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1199},
rating = {0}
}

@article{Banerji:1997,
author = {M Banerji and R M Smith and R F Dedrick},
journal = {J Outcome Meas},
title = {Dimensionality of an early childhood scale using rasch analysis and confirmatory factor analysis.},
abstract = {This paper explores the use of Rasch analysis and linear confirmatory factor analysis as methods for investigating the dimensionality of an early childhood test (Gesell School Readiness Screening Test), taking into account the theoretical basis of test construction. The paper presents the results of empirical analyses using both approaches and discusses the theoretical and psychometric considerations that guide the selection and application of each technique.},
affiliation = {Department of Educational Measurement and Research, University of South Florida 33620, USA.},
number = {1},
pages = {56--85},
volume = {1},
year = {1997},
language = {eng},
date-added = {2010-01-03 19:38:21 +0100},
date-modified = {2010-07-29 19:30:30 +0200},
pmid = {9661715},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1152},
rating = {0}
}

@article{Jaffee:2009p1414,
author = {William B Jaffee and Thomas J D'Zurilla},
journal = {Behavior Therapy},
title = {Personality, problem solving, and adolescent substance use},
abstract = {The major aim of this study was to examine the role of social problem solving in the relationship between personality and substance use in adolescents. Although a number of studies have identified a relationship between personality and substance use, the precise mechanism by which this occurs is not clear. We hypothesized that problem-solving skills could be one such mechanism. More specifically, we sought to determine whether problem solving mediates, moderates, or both mediates and moderates the relationship between different personality traits and substance use. Three hundred and seven adolescents were administered the Substance Use Profile Scale, the Social Problem-Solving Inventory-Revised, and the Personality Experiences Inventory to assess personality, social problem-solving ability, and substance use, respectively. Results showed that the dimension of rational problem solving (i.e., effective problem-solving skills) significantly mediated the relationship between hopelessness and lifetime alcohol and marijuana use. The theoretical and clinical implications of these results were discussed.},
affiliation = {Harvard Medical School, McLean Hospital, 115 Mill St., Belmont, MA 02478, USA. wjaffee@mclean.harvard.edu},
number = {1},
pages = {93--101},
volume = {40},
year = {2009},
month = {Mar},
language = {eng},
keywords = {Personality, Substance-Related Disorders, Questionnaires, Young Adult, Male, Follow-Up Studies, Problem Solving, Humans, Marijuana Abuse, Personality Inventory, Female, Alcohol-Related Disorders, Adolescent, Adolescent Behavior},
date-added = {2010-01-07 12:19:25 +0100},
date-modified = {2010-01-07 12:19:25 +0100},
doi = {10.1016/j.beth.2008.03.001},
pii = {S0005-7894(08)00062-2},
pmid = {19187820},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Jaffee-2009-Behavior%20Therapy_Personality%20problem.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1414},
rating = {0}
}

@article{Agho:2010p2917,
author = {K E Agho and J A Athanasou},
title = {Estimating the Hausman test for Rasch with poorly fitting items},
abstract = {In this study, an assessment that was difficult for a sample was used as a demonstration of the bootstrap and simulation method for estimating the Hausman test for Rasch analysis when the items are also poorly fitted. A 10-item dichotomously scored test of numerical reasoning was administered to 200 (120 male, 80 female) high school pupils in Nigeria. An initial analysis using RUMM showed that the fit of the items to the Rasch model was poor and 1000 bootstrap replicates of the sample were generated. This paper reports results from the parametric, simulation and bootstrap method for estimating the Hausman test for the Rasch model. The main findings were that the simulation and bootstrap method for estimating the Hausman test for Rasch were statistically better than the parametric method and there was no need to eliminate poorly fitted items as suggested previously in the literature.},
date-added = {2010-01-13 21:51:14 +0100},
date-modified = {2010-01-13 21:52:37 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Agho--_Estimating%20the%20Hausm.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2917},
rating = {0}
}

@article{Ferrer:2008p13819,
author = {Emilio Ferrer and Nekane Balluerka and Keith F Widaman},
journal = {Methodology},
title = {Factorial Invariance and The Specification of Second-Order Latent Growth Models},
abstract = {Latent growth modeling has been a topic of intense interest during the past two decades. Most theoretical and applied work has employed first-order growth models, in which a single manifest variable serves as indicator of trait level at each time of measurement. In the current paper, we concentrate on issues regarding second-order growth models, which have multiple indicators at each time of measurement. With multiple indicators, tests of factorial invariance of parameters across times of measurement can be tested. We conduct such tests using two sets of data, which differ in the extent to which factorial invariance holds, and evaluate longitudinal confirmatory factor, latent growth curve, and latent difference score models. We demonstrate that, if factorial invariance fails to hold, choice of indicator used to identify the latent variable can have substantial influences on the characterization of patterns of growth, strong enough to alter conclusions about growth. We also discuss matters related to the scaling of growth factors and conclude with recommendations for practice and for future research.},
affiliation = {Department of Psychology, University of California, Davis.},
number = {1},
pages = {22--36},
volume = {4},
year = {2008},
month = {Jan},
language = {ENG},
date-added = {2010-07-29 12:42:59 +0200},
date-modified = {2010-07-29 20:04:05 +0200},
doi = {10.1027/1614-2241.4.1.22},
pmid = {20046801},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Ferrer-2008-Methodology_Factorial%20Invariance.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13819},
rating = {0}
}

@article{Jang:2007,
author = {E E Jang and L Roussos},
journal = {Journal of Educational Measurement},
title = {An Investigation into the Dimensionality of TOEFL Using Conditional Covariance-Based Nonparametric Approach},
number = {1},
pages = {1--21},
volume = {44},
year = {2007},
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/Jang-2007-Journal%20of%20Educational%20Measurement_An%20Investigation%20int.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2130},
rating = {0}
}

@article{Lee:2008p10149,
author = {D-S Lee and J Park and K A Kay and N A Christakis and Z N Oltvai and A-L Barab{\'a}si},
journal = {Proc Natl Acad Sci USA},
title = {The implications of human metabolic network topology for disease comorbidity},
abstract = {Most diseases are the consequence of the breakdown of cellular processes, but the relationships among genetic/epigenetic defects, the molecular interaction networks underlying them, and the disease phenotypes remain poorly understood. To gain insights into such relationships, here we constructed a bipartite human disease association network in which nodes are diseases and two diseases are linked if mutated enzymes associated with them catalyze adjacent metabolic reactions. We find that connected disease pairs display higher correlated reaction flux rate, corresponding enzyme-encoding gene coexpression, and higher comorbidity than those that have no metabolic link between them. Furthermore, the more connected a disease is to other diseases, the higher is its prevalence and associated mortality rate. The network topology-based approach also helps to uncover potential mechanisms that contribute to their shared pathophysiology. Thus, the structure and modeled function of the human metabolic network can provide insights into disease comorbidity, with potentially important consequences for disease diagnosis and prevention.},
affiliation = {Center for Complex Network Research and Department of Physics, Biology, and Computer Science, Northeastern University, Boston, MA 02115, USA.},
number = {29},
pages = {9880--5},
volume = {105},
year = {2008},
month = {Jul},
language = {eng},
keywords = {Phenotype, Metabolism: Inborn Errors, Comorbidity, Models: Biological, Epigenesis: Genetic, Metabolic Diseases, Humans, Gene Expression, Metabolic Networks and Pathways},
date-added = {2010-04-01 11:39:37 +0200},
date-modified = {2010-04-01 11:39:37 +0200},
doi = {10.1073/pnas.0802208105},
pii = {0802208105},
pmid = {18599447},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Lee-2008-Proc%20Natl%20Acad%20Sci%20USA_The%20implications%20of.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p10149},
rating = {0}
}

@article{Chan:2010p13377,
author = {Ya-Fen Chan and Doris Y P Leung and Daniel Y T Fong and Chi-Ming Leung and Antoinette M Lee},
journal = {Qual Life Res},
title = {Psychometric evaluation of the Hospital Anxiety and Depression Scale in a large community sample of adolescents in Hong Kong},
abstract = {PURPOSE: The Hospital Anxiety and Depression Scale (HADS) is widely used in adult populations; however, its usefulness with adolescents has been explored less. This study sought to evaluate the reliability, validity, and factor structure of the Chinese version of HADS in a community sample of adolescents residing in Hong Kong. METHODS: A prospective cohort of 5,857 students recruited from 17 secondary schools completed the HADS. Internal consistency and concurrent validity were examined. Confirmatory factor analysis was applied to test the relative fits of six factor structures of the HADS. The best fitting model was further cross-validated by male, female, split-half samples, and age subgroups. RESULTS: The HADS possessed adequate internal consistency, especially for the anxiety subscale. Significant concurrent intercorrelations with self-reported suicidal thoughts and the Youth Self Report Anxious/Depressed subscale were discovered and found to be stronger for females. The cross-validation supported a two-factor model, where anxiety item 7, "I can sit at ease and feel relaxed", was placed in the depression subscale. CONCLUSIONS: The HADS showed satisfactory psychometric properties as a screening instrument in assessing anxious and depressive states as two correlated but distinct factors in adolescents. Study implications and recommendations for future research were discussed.},
affiliation = {Department of Nursing Studies, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong.},
number = {6},
pages = {865--73},
volume = {19},
year = {2010},
month = {Aug},
language = {eng},
date-added = {2010-07-01 19:13:07 +0200},
date-modified = {2010-07-29 19:48:30 +0200},
doi = {10.1007/s11136-010-9645-1},
pmid = {20373037},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Chan-2010-Qual%20Life%20Res_Psychometric%20evaluat.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13377},
rating = {0}
}

@article{Dusseldorp:2001p4016,
author = {E Dusseldorp and J J Meulman},
journal = {Methods Inf Med},
title = {Prediction in medicine by integrating regression trees into regression analysis with optimal scaling},
abstract = {OBJECTIVES: A new data-analysis strategy is proposed to solve the problems of selecting interaction terms in linear regression on the one hand, and of statistically testing the significance of regression trees on the other hand. METHODS: The proposed strategy combines two data mining techniques: regression trees and regression analysis with optimal scaling (CATREG). The method traces small regression trees using the bootstrap and integrates the results as interaction variables (called "trunk variables") into CATREG. RESULTS: An application to data from cardiac patients shows a relative increase of 19% variance accounted for (16% cross-validated variance), by the CATREG model including the trunk variables compared to the model excluding these variables. CONCLUSIONS: This study indicates that trunk variables can be useful to model interaction effects in prediction problems.},
affiliation = {Department of Education, Leiden University, The Netherlands. dusseldorp@fsw.leidenuniv.nl},
number = {5},
pages = {403--9},
volume = {40},
year = {2001},
month = {Jan},
language = {eng},
keywords = {Artificial Intelligence, Decision Support Systems: Clinical, Predictive Value of Tests, Heart Diseases, Neural Networks (Computer), Humans, Decision Trees, Health Behavior, Linear Models, Data Interpretation: Statistical, Computer Simulation},
date-added = {2010-01-18 15:08:52 +0100},
date-modified = {2010-07-29 19:39:53 +0200},
pmid = {11776739},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Dusseldorp-2001-Methods%20Inf%20Med_Prediction%20in%20medici.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4016},
rating = {0}
}

@article{Revelle:2009p926,
author = {William Revelle and Richard E Zinbarg},
journal = {Psychometrika},
title = {Coefficients alpha, beta, omega and the glb: comments on Sijtsma},
abstract = {There are three fundamental problems in Sijtsma (Psychometrika, 2008): (1) contrary to the name, the glb is not the greatest lower bound of reliability but rather is systematically less than ωt (McDonald, Test theory: A unified treatment, Erlbaum, Hillsdale, 1999), (2) we agree with Sijtsma that when considering how well a test measures one concept, a is not appropriate, but recommend ωt rather than the glb, and (3) the end user needs procedures that are readily available in open source software.},
affiliation = {Department of Psychology Northwestern University},
number = {1},
pages = {145--154},
volume = {74},
year = {2009},
keywords = {test theory, reliability, homogeneity, coefficient alpha, coefficient beta, Internal consistency, coefficient omega},
date-added = {2010-01-03 19:21:47 +0100},
date-modified = {2010-01-03 19:24:05 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Revelle-2009-Psychometrika_Coefficients%20alpha.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p926},
rating = {3}
}

@phdthesis{Sheng:2005,
author = {Y Sheng},
journal = {PhD Thesis},
title = {Bayesian analysis of hierarchical IRT models: Comparing and combining the unidimensional {\&} multi-dimensional IRT models},
affiliation = {Faculty of the Graduate School, University of Missouri-Columbia},
year = {2005},
month = {Jul},
date-added = {2010-01-03 19:38:21 +0100},
date-modified = {2010-01-03 19:38:22 +0100},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1184},
read = {Yes},
rating = {0}
}

@article{Wu:2006p11747,
author = {M Wu and R J Adams},
journal = {Mathematics Education Research Journal},
title = {Modelling Mathematics Problem Solving Item Responses Using a Multidimensional IRT Model},
abstract = {This research examined students' responses to mathematics problem-solving tasks and applied a general multidimensional IRT model at the response category level. In doing so, cognitive processes were identified and modelled through item response modelling to extract more information than would be provided using conventional practices in scoring items. More specifically, the study consisted of two parts. The first part involved the development of a mathematics problem-solving framework that was theoretically grounded, drawing upon research in mathematics education and cognitive psychology. The framework was then used as the basis for item development. The second part of the research involved the analysis of the item response data. It was demonstrated that multidimensional IRT models were powerful tools for extracting information from a limited number of item responses. A problem-solving profile for each student could be constructed from the results of IRT scaling.},
number = {2},
pages = {93--113},
volume = {18},
year = {2006},
date-added = {2010-05-14 21:47:01 +0200},
date-modified = {2010-07-29 20:16:39 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Wu-2006-Mathematics%20Education%20Research%20Journal_Modelling%20Mathematic-2.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11747},
rating = {4}
}

@article{Puttonen:2005p12239,
author = {Sampsa Puttonen and Niklas Ravaja and Liisa Keltikangas-J{\"a}rvinen},
journal = {Compr Psychiatry},
title = {Cloninger's temperament dimensions and affective responses to different challenges},
abstract = {Cloninger's psychobiological model of temperament and character postulates that each of the temperament dimensions is associated with a specific emotional experience, depending on the situational cues. The aim of the present study was to test this postulate in a variety of challenging experimental tasks. The participants were 91 healthy young adults whose temperament was assessed with the temperament and character inventory. The subjects rated their emotions during each task and rest period using an adjective checklist. Novelty seeking was associated with dullness during monotonous and aversive situations and with a higher level of pleasantness during the initial baseline period and the appetitive situation. Harm avoidance was associated with higher levels of fear and unpleasant emotions and lower levels of positively valenced emotions. The present study provides support for the validity of Cloninger's temperament dimensions as predictors of emotional responses during different challenges. Especially, novelty seeking and harm avoidance appear to have a significant influence on emotional experience.},
affiliation = {Department of Psychology, University of Helsinki, FIN-00014 Helsinki, Finland.},
number = {2},
pages = {128--34},
volume = {46},
year = {2005},
month = {Jan},
language = {eng},
keywords = {Adult, Harm Reduction, Defense Mechanisms, Speech, Statistics as Topic, Humans, Psychometrics, Problem Solving, Cohort Studies, Stress: Psychological, Emotions, Personality Inventory, Arousal, Character, Prospective Studies, Pattern Recognition: Visual, Exploratory Behavior, Type A Personality, Startle Reaction, Temperament, Male, Female, Reaction Time},
date-added = {2010-05-30 10:49:59 +0200},
date-modified = {2010-05-30 10:50:00 +0200},
doi = {10.1016/j.comppsych.2004.07.023},
pmid = {15723030},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Puttonen-2005-Compr%20Psychiatry_Cloninger's%20temperam.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12239},
rating = {0}
}

@book{Sudman:1982,
author = {S Sudman and N Bradburn},
journal = {Book},
title = {Asking questions: A practical guide to questionnaire design},
year = {1982},
date-added = {2010-01-03 19:34:17 +0100},
date-modified = {2010-07-29 19:21:41 +0200},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p989},
rating = {0}
}

@article{Cooper:1998,
author = {L Cooper and L Peters and G Andrews},
journal = {J Psychiatr Res},
title = {Validity of the Composite International Diagnostic Interview (CIDI) psychosis module in a psychiatric setting},
abstract = {This study aimed to test the procedural validity of the psychosis module of the Composite International Diagnostic Interview (CIDI) by comparing it with diagnostic checklists completed by experienced clinicians. Seventy-five subjects were interviewed using the interviewer-administered version of the CIDI. Their clinician(s) then completed diagnostic checklists for DSMIV and ICD10 diagnoses of schizophrenia. Agreement was measured at the diagnostic, criterion and subcriterion levels. The validity standard (diagnostic checklist) was shown to be reliable with interrater agreement between the clinicians for the diagnosis of schizophrenia being excellent (K = 0.82 for DSMIV and K = 0.71 for ICD10). The agreement between the CIDI and the clinician checklists varied with sensitivities for DSMIV subcriteria ranging from 0.18 (negative symptoms) to 0.93 (bizarre delusions) and specificities ranging from 0.38 (catatonia) to 0.95 (disorganised speech). A similar pattern was found for ICD10 subcriteria: sensitivity varied from 0.19 (neologisms) to 0.90 (persistent delusions) and specificity varied from 0.39 (catatonia) to 0.95 (negative symptoms). The poorest levels of agreement were found for symptoms requiring interviewer judgement. The CIDI showed good agreement with clinician checklist diagnoses when the criteria were based on questions asked of the subjects. When the interviewer was required to make judgement of behaviours, the agreement between the CIDI and the clinician checklists was lower, resulting in overall poor agreement between the CIDI and the clinician checklists. Suggestions for improving the validity of the psychosis module of the CIDI are made.},
number = {6},
pages = {361--368},
volume = {32},
year = {1998},
date-added = {2010-01-03 19:36:09 +0100},
date-modified = {2010-07-29 20:34:03 +0200},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1046},
rating = {0}
}

@article{Weinstock:2010p11508,
author = {Lauren M Weinstock and David Strong and Lisa A Uebelacker and Ivan W Miller},
journal = {J Psychiatr Res},
title = {DSM-IV depressive symptom expression among individuals with a history of hypomania: A comparison to those with or without a history of mania},
abstract = {In an effort to advance an understanding of the phenomenology of bipolar II depression, the current study used methods based in item response theory to evaluate differences in DSM-IV depression symptom endorsement in an epidemiological sample of individuals with a history of hypomania (i.e., bipolar II depression) in comparison to: a) individuals with a history of mania (i.e., bipolar I depression), and b) individuals without a history of hypomania or mania (i.e., unipolar depression). Clinical interview data were drawn from a subsample (n = 13,753) of individuals with bipolar II, bipolar I, or unipolar depression who had participated in the National Epidemiologic Survey on Alcohol and Related Conditions. A two-parameter item response model was used to estimate differential item functioning (DIF) between these groups. Differences in severity parameter estimates revealed that suicidal ideation/attempt was less likely to be endorsed across most levels of depression severity in bipolar II versus bipolar I disorder. There were no significant differences between groups on the remaining DSM-IV symptoms. Although preliminary, current study data are consistent with recent assertions that depression may be understood as a clinical phenomenon that is consistent across the major affective disorders. An exception to this conclusion may be in the area of suicidal ideation, which requires additional attention.},
affiliation = {Psychosocial Research Program, Warren Alpert Medical School of Brown University and Butler Hospital, 345 Blackstone Boulevard, Providence, RI 02906, United States.},
pages = {},
year = {2010},
month = {Apr},
language = {ENG},
date-added = {2010-05-01 17:30:02 +0200},
date-modified = {2010-05-01 17:30:03 +0200},
doi = {10.1016/j.jpsychires.2010.03.010},
pii = {S0022-3956(10)00079-8},
pmid = {20398907},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Weinstock-2010-J%20Psychiatr%20Res_DSM-IV%20depressive%20sy.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11508},
rating = {0}
}

@article{Fujii:2005p4376,
author = {Daryl E M Fujii and Abe B Tokioka and Alex I Lichton and Earl Hishinuma},
journal = {Psychiatr Serv},
title = {Ethnic differences in prediction of violence risk with the HCR-20 among psychiatric inpatients},
abstract = {OBJECTIVE: This study examined ethnic differences in assessment of violence risk among psychiatric inpatients by using the Historical Clinical Risk Management-20 (HCR-20). METHODS: The HCR-20 was administered to 169 consecutive psychiatric inpatients. Individual items and total scores on the HCR-20 were compared between patients of Asian-American (N=51), Euro-American (N=46), and Native-Hawaiian (N=38) heritage. Receiver operating characteristic (ROC) and stepwise regressions were calculated for each ethnic group with HCR-20 scores as predictor variables and violent event reports of significant threats and assaults as the outcome measure. RESULTS: Similar rates of overall violence were found between ethnic groups, and the HCR-20 was found to have predictive validity as measured by ROC analysis. Differences in scores on individual HCR-20 items were found, including young age at first incident of violence, psychopathy, early maladjustment, personality disorder, and past supervision failure, as well as total HCR-20 score, with Asian Americans scoring lower (less risk) than Euro-Americans and Native Hawaiians. Stepwise multiple regressions indicated a different pattern of predictor variables for each ethnic group, with impulsivity salient for the Asian-American group, young age at first incident of violence salient for the Euro-American group, and young age at first incident of violence, relationship instability, and risk-management plans' lacking feasibility as salient predictors for the Native-Hawaiian group. CONCLUSIONS: The findings provide preliminary support for the cross-cultural validity of the HCR-20 while at the same time identifying unique ethnic differences in prediction of violence risk among psychiatric inpatients.},
affiliation = {Hawaii State Hospital, 45-710 Keaahala Road, Kaneohe, Hawaii, USA. defujii@hsh.health.state.hi.us},
number = {6},
pages = {711--6},
volume = {56},
year = {2005},
month = {Jun},
language = {eng},
keywords = {Crime, Retrospective Studies, Patient Admission, Aged, Female, Adult, Male, Asian Americans, Regression Analysis, Hawaii, Middle Aged, Cross-Cultural Comparison, European Continental Ancestry Group, Violence, Risk Factors, ROC Curve, Risk Management, Population Groups, Humans, Personality Assessment},
date-added = {2010-01-28 16:31:46 +0100},
date-modified = {2010-07-29 19:45:23 +0200},
doi = {10.1176/appi.ps.56.6.711},
pii = {56/6/711},
pmid = {15939948},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4376},
rating = {0}
}

@article{Sharon:2007p4727,
author = {Dahlia Sharon and Matti S H{\"a}m{\"a}l{\"a}inen and Roger B H Tootell and Eric Halgren and John W Belliveau},
journal = {Neuroimage},
title = {The advantage of combining MEG and EEG: comparison to fMRI in focally stimulated visual cortex},
abstract = {To exploit the high (millisecond) temporal resolution of magnetoencephalography (MEG) and electroencephalography (EEG) for measuring neuronal dynamics within well-defined brain regions, it is important to quantitatively assess their localizing ability. Previous modeling studies and empirical data suggest that a combination of MEG and EEG signals should yield the most accurate localization, due to their complementary sensitivities. However, these two modalities have rarely been explicitly combined for source estimation in studies of recorded brain activity, and a quantitative empirical assessment of their abilities, combined and separate, is currently lacking. Here we studied early visual responses to focal Gabor patches flashed during subject fixation. MEG and EEG data were collected simultaneously and were compared with the functional MRI (fMRI) localization produced by identical stimuli in the same subjects. This allowed direct evaluation of the localization accuracy of separate and combined MEG/EEG inverse solutions. We found that the localization accuracy of the combined MEG+EEG solution was consistently better than that of either modality alone, using three different source estimation approaches. Further analysis suggests that this improved localization is due to the different properties of the two imaging modalities rather than simply due to increased total channel number. Thus, combining MEG and EEG data is important for high-resolution spatiotemporal studies of the human brain.},
affiliation = {MGH/MIT/HMS Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, MA 02129, USA. dahlia@mmr.mgh.harvard.edu},
number = {4},
pages = {1225--35},
volume = {36},
year = {2007},
month = {Jul},
language = {eng},
keywords = {Visual Pathways, Magnetic Resonance Imaging, Sensitivity and Specificity, Electroencephalography, Image Processing: Computer-Assisted, Imaging: Three-Dimensional, Brain Mapping, Visual Cortex, Orientation, Data Interpretation: Statistical, Pattern Recognition: Visual, Photic Stimulation, Humans, Magnetoencephalography},
date-added = {2010-01-30 16:19:48 +0100},
date-modified = {2010-01-30 16:19:48 +0100},
doi = {10.1016/j.neuroimage.2007.03.066},
pii = {S1053-8119(07)00213-3},
pmid = {17532230},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4727},
rating = {0}
}

@article{Teresi:2008p5949,
author = {J A Teresi and M Ramirez and J-S Lai and S Silver},
journal = {Psychology Science Quarterly},
title = {Occurrences and sources of Differential Item Functioning (DIF) in patient-reported outcome measures: Description of DIF methods, and review of measures of depression, quality of life and general health},
abstract = {Examination of the equivalence of measures involves several levels, including conceptual equiva- lence of meaning, as well as quantitative tests of differential item functioning (DIF). The purpose of this review is to examine DIF in patient-reported outcomes. Reviewed were measures of self-reported depression, quality of life (QoL) and general health. Most measures of depression contained large amounts of DIF, and the impact of DIF at the scale level was typically sizeable. The studies of QoL and health measures identified a moderate amount of DIF; however, many of these studies examined only one type of DIF (uniform). Relative to DIF analyses of depression measures, less analysis of the impact of DIF on QoL and health measures was performed, and the authors of these analyses generally did not recommend remedial action, with one notable exception. While these studies represent good beginning efforts to examine measurement equivalence in patient-reported outcome measures, more cross- validation work is required using other (often larger) samples of different ethnic and language groups, as well as other methods that permit more extensive analyses of the type of DIF, together with magni- tude and impact.},
number = {4},
pages = {538--612},
volume = {50},
year = {2008},
date-added = {2010-02-18 23:19:11 +0100},
date-modified = {2010-07-29 19:46:06 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Teresi-2008-Psychology%20Science%20Quarterly_Occurrences%20and%20sour.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5949},
rating = {0}
}

@article{Elston:2006p3158,
author = {Robert C Elston and M Anne Spence},
journal = {Stat Med},
title = {Advances in statistical human genetics over the last 25 years},
abstract = {The past 25 years has seen an explosion in the number of genetic markers that can be measured on DNA samples at an ever decreasing cost. Although basic statistical methods for analysing such data gathered on samples of either independent individuals or family members, one or two markers at a time, were already well developed before this explosion occurred, there has been a corresponding burst in activity to develop multiple marker models to find disease-causing gene variants, capitalizing on the data that have become available, to increase the power of such methods. This has required the concomitant development of faster algorithms to speed up the computation of various likelihoods. For linkage analysis, to obtain the approximate locations for genes of interest, Mendelian segregation models have been extended to be more realistic and statistical models that do not assume specific modes of inheritance have been extended to allow for the analysis of larger pedigree structures. For association analysis, to obtain more precise locations for genes of interest, the recent completion of the first stage of the HapMap project has spurred the development, still underway, of novel experimental designs and analytical methods to combat the curse of dimensionality and the resulting multiple testing problem. Perhaps the greatest current challenge concerns how best to gather and synthesize the many lines of evidence possible in order to discover the genetic determinants underlying complex diseases.},
affiliation = {Department of Epidemiology and Biostatistics, Case Western Reserve University, Cleveland, OH, USA. rce@darwin.case.edu},
number = {18},
pages = {3049--80},
volume = {25},
year = {2006},
month = {Sep},
language = {eng},
keywords = {Genetic Markers, Quantitative Trait Loci, Models: Statistical, Humans, Models: Genetic, Data Interpretation: Statistical, Chromosome Mapping},
date-added = {2010-01-14 20:27:57 +0100},
date-modified = {2010-01-14 20:27:57 +0100},
doi = {10.1002/sim.2650},
pmid = {16900576},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Elston-2006-Stat%20Med_Advances%20in%20statisti.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3158},
rating = {0}
}

@article{Todorov:2007p4835,
author = {Alexander Todorov and M Ida Gobbini and Karla K Evans and James V Haxby},
journal = {Neuropsychologia},
title = {Spontaneous retrieval of affective person knowledge in face perception},
abstract = {In a functional magnetic resonance imaging experiment, we explored whether affective person knowledge based on memories formed from minimal information is spontaneously retrieved in face perception. In the first stage of the experiment, participants were presented with 120 unfamiliar faces. Each face was presented with a description of one of four types of behaviors: aggressive, disgusting, neutral, and nice. In the second stage, participants were scanned while engaged in a one-back recognition task in which they saw the faces that were associated with behaviors and 30 novel faces. Although this task is a simple perceptual task that neither demands person evaluation nor retrieval of person knowledge, neural responses to faces differed as a function of the behaviors. Faces associated with behaviors evoked stronger activity than did novel faces in regions implicated in social cognition--anterior paracingulate cortex and superior temporal sulcus. Explicit memory for the behaviors enhanced the neural response in these regions. Faces associated with disgusting behaviors evoked stronger activity in left anterior insula than did faces associated with aggressive behaviors. This effect was equally strong for faces associated with explicitly recalled behaviors and faces associated with non-recalled behaviors. The findings suggest that affective person knowledge acquired from minimal information is spontaneously retrieved in face perception, engaging neural systems for analysis of social cognition and emotions.},
affiliation = {Department of Psychology, Center for the Study of Brain, Mind and Behavior, Green Hall, Princeton University, Princeton, NJ 08544, USA. atodorov@princeton.edu},
number = {1},
pages = {163--73},
volume = {45},
year = {2007},
month = {Jan},
language = {eng},
keywords = {Image Processing: Computer-Assisted, Adolescent, Brain Mapping, Face, Memory, Magnetic Resonance Imaging, Affect, Photic Stimulation, Female, Social Perception, Adult, Humans, Cerebral Cortex, Recognition (Psychology), Male},
date-added = {2010-02-01 20:22:11 +0100},
date-modified = {2010-02-01 20:22:11 +0100},
doi = {10.1016/j.neuropsychologia.2006.04.018},
pii = {S0028-3932(06)00164-3},
pmid = {16759672},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Todorov-2007-Neuropsychologia_Spontaneous%20retrieva.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4835},
rating = {0}
}

@article{Green:1993p13484,
author = {P E Green and A M Krieger and M K Agarwal},
title = {A cross validation test of four models for quantifying multiattribute preferences},
year = {1993},
date-added = {2010-07-01 22:16:44 +0200},
date-modified = {2010-07-01 22:17:46 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Green-1993-_A%20cross%20validation%20t.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13484},
rating = {0}
}

@article{Heer:2010p14014,
author = {J Heer and M Bostock},
journal = {CHI},
title = {Crowdsourcing Graphical Perception: Using Mechanical Turk to Assess Visualization Design},
abstract = {Understanding perception is critical to effective visualiza- tion design. With its low cost and scalability, crowdsourcing presents an attractive option for evaluating the large design space of visualizations; however, it first requires validation. In this paper, we assess the viability of Amazon's Mechanical Turk as a platform for graphical perception experiments. We replicate previous studies of spatial encoding and luminance contrast and compare our results. We also conduct new ex- periments on rectangular area perception (as in treemaps or cartograms) and on chart size and gridline spacing. Our re- sults demonstrate that crowdsourced perception experiments are viable and contribute new insights for visualization de- sign. Lastly, we report cost and performance data from our experiments and distill recommendations for the design of crowdsourced studies.},
year = {2010},
date-added = {2010-08-04 09:39:35 +0200},
date-modified = {2010-08-04 09:40:17 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Heer-2010-CHI_Crowdsourcing%20Graphi.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p14014},
rating = {0}
}

@article{Narring:1995p8635,
author = {F Narring and P A Michaud},
journal = {Soz Praventivmed},
title = {Methodological issues in adolescent health surveys: the case of the Swiss Multicenter-adolescent Survey on Health},
abstract = {In many countries, health care and prevention professionals face serious lack of data regarding health status, health care utilisation and lifestyles of adolescents. With reference to a survey on health and lifestyles of Swiss teenagers 15-20 years old, this paper reviews the different methodological issues linked with the conception and the realization of such a study. The main objective of the so-called "SMASH" project (Swiss Multicentric Adolescent Survey on Health) is, like other similar researches, to gather health indicators; that is, to measure attitudes and behaviour regarding different aspects of health and lifestyles, to identify the perceived health needs of the respondents and to describe their utilisation of health care services. The main issues which are addressed in the paper are related to: 1) the choice of the channel and the instrument to be used (telephone, vs. face-to-face interview vs. self-administered questionnaire; 2) the sampling procedures (pure random vs. cluster school-based samples; size of the sample); 3) the design and the content of the questionnaire (choice of the areas to be covered, selection and wording of the questions); 4) the ethical considerations linked with the collection of data. One of the specificities of SMASH is the inclusion of youth participation at various steps and levels: the design of the questionnaire, the strategies used to gather the data, and the analysis of the results. Two important issues emerge from this review. First, the importance in the future of being able to rely on common indicators that could be used in different countries and settings through the construction of a validated instrument. Second, the fact that most of the surveys conducted in this field neglect several sub-populations of adolescents with special and important needs: handicapped adolescents, drop-outs and recent immigrants coming either as unskilled workers or as refugees. Surveys in such special in-need groups will have to be planned with specific designs, both in terms of content and of approach.},
affiliation = {UEPP/IUMSP, Lausanne.},
number = {3},
pages = {172--82},
volume = {40},
year = {1995},
month = {Jan},
language = {eng},
keywords = {Adolescent Behavior, Questionnaires, Humans, Life Style, Adult, Research Design, Male, Adolescent, Health Surveys, Switzerland, Ethics: Professional, Health Services, Data Collection, Female, Health Status Indicators, Sampling Studies},
date-added = {2010-03-22 11:57:38 +0100},
date-modified = {2010-03-22 11:57:38 +0100},
pmid = {7610717},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8635},
rating = {0}
}

@inbook{Kirk:2003,
author = {R E Kirk},
journal = {Book},
title = {Handbook of research methods in experimental psychology},
chapter = {The importance of effect magnitude},
pages = {83--105},
year = {2003},
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/p1954},
rating = {0}
}

@article{Lee:2004p1755,
author = {E K Lee and D Cook and E Wurtele and D Kim and J Kim and H An},
journal = {COMPSTAT'04 Symposium},
title = {GENEGOBBI: Visual data analysis aid tools for microarray data},
abstract = {GeneGobi is a software for the exploratory analysis of microar- ray data and metabolic networks. It helps biologists analyze the connections between microarray data and metabolic pathways visually and interactively. This software is built on the best of open-source statistical analysis soft- ware, R, and the best of open-source data visualization software, GGobi. GeneGobi combines the advantages of these two softwares and provides a ``user-friendly'' interface to the analysis and graphical tools available in these powerful packages.},
year = {2004},
keywords = {Data visualization, Multivariate data analysis, GGobi, Metabolic networks, Gene Expression data},
date-added = {2010-01-09 21:04:30 +0100},
date-modified = {2010-01-09 21:41:51 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Lee-2004-COMPSTAT'04%20Symposium_GENEGOBBI%20Visual%20da.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1755},
read = {Yes},
rating = {0}
}

@article{Bastien:2008p3592,
author = {P Bastien},
title = {R{\'E}GRESSION PLS ET DONN{\'E}ES CENSUR{\'E}ES},
year = {2008},
date-added = {2010-01-15 21:20:58 +0100},
date-modified = {2010-01-15 21:21:20 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Bastien-2008-_RE%CC%81GRESSION%20PLS%20ET%20D.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3592},
rating = {0}
}

@article{Davier:1997,
author = {M von Davier},
journal = {Methods of Psychological Research Online},
title = {WINMIRA -- program description and recent enhancements},
number = {2},
pages = {25--28},
volume = {2},
year = {1997},
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/Davier-1997-Methods%20of%20Psychological%20Research%20-%20Online_WINMIRA%20--%20program%20d.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2070},
rating = {0}
}

@article{Girirajan:2010p6652,
author = {Santhosh Girirajan and Jill A Rosenfeld and Gregory M Cooper and Francesca Antonacci and Priscillia Siswara and Andy Itsara and Laura Vives and Tom Walsh and Shane E McCarthy and Carl Baker and Heather C Mefford and Jeffrey M Kidd and Sharon R Browning and Brian L Browning and Diane E Dickel and Deborah L Levy and Blake C Ballif and Kathryn Platky and Darren M Farber and Gordon C Gowans and Jessica J Wetherbee and Alexander Asamoah and David D Weaver and Paul R Mark and Jennifer Dickerson and Bhuwan P Garg and Sara A Ellingwood and Rosemarie Smith and Valerie C Banks and Wendy Smith and Marie T McDonald and Joe J Hoo and Beatrice N French and Cindy Hudson and John P Johnson and Jillian R Ozmore and John B Moeschler and Urvashi Surti and Luis F Escobar and Dima El-Khechen and Jerome L Gorski and Jennifer Kussmann and Bonnie Salbert and Yves Lacassie and Alisha Biser and Donna M McDonald-McGinn and Elaine H Zackai and Matthew A Deardorff and Tamim H Shaikh and Eric Haan and Kathryn L Friend and Marco Fichera and Corrado Romano and Jozef G{\'e}cz and Lynn E Delisi and Jonathan Sebat and Mary-Claire King and Lisa G Shaffer and Evan E Eichler},
journal = {Nat Genet},
title = {A recurrent 16p12.1 microdeletion supports a two-hit model for severe developmental delay},
abstract = {We report the identification of a recurrent, 520-kb 16p12.1 microdeletion associated with childhood developmental delay. The microdeletion was detected in 20 of 11,873 cases compared with 2 of 8,540 controls (P = 0.0009, OR = 7.2) and replicated in a second series of 22 of 9,254 cases compared with 6 of 6,299 controls (P = 0.028, OR = 2.5). Most deletions were inherited, with carrier parents likely to manifest neuropsychiatric phenotypes compared to non-carrier parents (P = 0.037, OR = 6). Probands were more likely to carry an additional large copy-number variant when compared to matched controls (10 of 42 cases, P = 5.7 x 10(-5), OR = 6.6). The clinical features of individuals with two mutations were distinct from and/or more severe than those of individuals carrying only the co-occurring mutation. Our data support a two-hit model in which the 16p12.1 microdeletion both predisposes to neuropsychiatric phenotypes as a single event and exacerbates neurodevelopmental phenotypes in association with other large deletions or duplications. Analysis of other microdeletions with variable expressivity indicates that this two-hit model might be more generally applicable to neuropsychiatric disease.},
affiliation = {[1] Department of Genome Sciences, University of Washington School of Medicine, Seattle, Washington, USA. [2] These authors contributed equally to this work.},
number = {3},
pages = {203--9},
volume = {42},
year = {2010},
month = {Mar},
language = {eng},
date-added = {2010-03-03 20:38:56 +0100},
date-modified = {2010-03-03 20:38:57 +0100},
doi = {10.1038/ng.534},
pii = {ng.534},
pmid = {20154674},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Girirajan-2010-Nat%20Genet_A%20recurrent%2016p12.1.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6652},
rating = {0}
}

@article{Bady:2004p12019,
author = {P Bady and S Dol{\'e}dec and B Dumont and J-F Fruget},
journal = {C. R. Biologies},
title = {Multiple co-inertia analysis: A tool for assessing synchrony in the temporal variability of aquatic communities},
abstract = {Multitable techniques are rarely used for investigating patterns in ecological data surveys despite their ability to deal with the spatial and/or temporal stability of assemblages. Based on a covariance optimisation criterion, Multiple Co-inertia analysis (MCOA) enables the simultaneous ordination of several tables. Such analysis allows the representation of the stable vs. unstable part of the assemblage structure in comparison to a reference derived from each table. We used MCOA on multiple time series of invertebrate sampling to show that synchrony in the temporal variability of communities can establish between geographically distant locations despite the spatial and temporal plasticity of the faunistic responses to long-term changes in environmental conditions.},
pages = {29--36},
volume = {327},
year = {2004},
date-added = {2010-05-23 22:46:26 +0200},
date-modified = {2010-05-23 22:48:19 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Bady-2004-C.%20R.%20Biologies_Multiple%20co-inertia.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12019},
rating = {5}
}

@article{Zeeb:2010p12352,
author = {Fiona D Zeeb and Stan B Floresco and Catharine A Winstanley},
journal = {Psychopharmacology (Berl)},
title = {Contributions of the orbitofrontal cortex to impulsive choice: interactions with basal levels of impulsivity, dopamine signalling, and reward-related cues},
abstract = {RATIONALE: Individual differences in impulsive decision-making may be critical determinants of vulnerability to impulse control disorders and substance abuse, yet little is known of their biological or behavioural basis. The orbitofrontal cortex (OFC) has been heavily implicated in the regulation of impulsive decision-making. However, lesions of the OFC in rats have both increased and decreased impulsivity in delay-discounting paradigms, where impulsive choice is defined as the selection of small immediate over larger delayed rewards. OBJECTIVES: Reviewing the different methods used, we hypothesized that the effects of OFC inactivation on delay discounting may be critically affected by both subjects' baseline level of impulsive choice and the presence or absence of a cue to bridge the delay between selection and delivery of the large reward. RESULTS: Here, we show that OFC inactivation increased impulsive choice in less impulsive rats when the delay was cued, but decreased impulsive choice in highly impulsive rats in an uncued condition. CONCLUSIONS: Providing explicit environmental cues to signal the delay-to-reinforcement appears to change the way in which the OFC is recruited in the decision-making process in a baseline-dependent fashion. This change may reflect activation of the dopamine system, as intra-OFC infusions of dopamine receptor antagonists increased impulsive choice but only when the delay was cued.},
affiliation = {Department of Psychology, University of British Columbia, 2136 West Mall, Vancouver, BC, V6T 1Z4, Canada, fzeeb@psych.ubc.ca.},
pages = {},
year = {2010},
month = {Apr},
language = {ENG},
date-added = {2010-06-15 17:27:04 +0200},
date-modified = {2010-06-15 17:27:04 +0200},
doi = {10.1007/s00213-010-1871-2},
pmid = {20428999},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Zeeb-2010-Psychopharmacology%20(Berl)_Contributions%20of%20the.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12352},
rating = {0}
}

@article{Clason:1994p14213,
author = {Dennis L Clason and Thomas J Dormody},
journal = {Journal of Agricultural Education},
title = {Analyzing Data Measured by Individual Likert-Type Items},
number = {4},
pages = {31--35},
volume = {35},
year = {1994},
date-added = {2010-08-22 20:29:00 +0200},
date-modified = {2010-08-22 20:30:23 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Clason-1994-Journal%20of%20Agricultural%20Education_Analyzing%20Data%20Measu.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p14213},
rating = {0}
}

@article{Dipasquale:2009p7898,
author = {F Dipasquale and P Magnano},
journal = {Life Span and Disability},
title = {Increased risk of neuropsychological disorders in children born preterm without major disabilities: a neurodevelopmental model},
abstract = {Over the past 30 years, preterm births have drastically increased and today represent 12.5% of total births. About 1.2% of preterm births characterize very preterm births (GA<32weeks) that, with very low birth weight (BW<1500grams), are constantly found as risk factors of unfavourable neurological outcomes in longitudinal follow up studies. Actually, also ``late preterm'' children (preterm born from 33 to 36 weeks of gestational age), normally considered at low risk for neurodevelopmental disabilities, are supposed to represent a population of children to be monitored. Previ- ous findings of a general cognitive impairment in children born preterm have gradually addressed the assessment of more specific neuropsycholog- ical skills and pointed out the importance to follow these children up to adolescent age. The neuroanatomical prerequisite of an abnormality in frontal lobe development and the correlation with various neuropsycho- logical dysfunctions (fine and gross motor disabilities, executive function and working memory deficits, visual-constructional and attentional dys- functions) underline the interference of preterm birth with normal brain maturational phases. Though showing more demanding neurodevelop- mental pathways than term peers, a large number of preterm children tend to functionally normalize in adolescence. The review supports the hypoth- esis of a neurodevelopmental model that can be at risk to influence dys- functional neuropsychological outcome.},
number = {1},
pages = {53--66},
volume = {XII},
year = {2009},
date-added = {2010-03-20 19:21:11 +0100},
date-modified = {2010-03-20 19:21:59 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Dipasquale-2009-Life%20Span%20and%20Disability_Increased%20risk%20of%20ne.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7898},
rating = {0}
}

@article{Fuentes:2009p5117,
author = {Christina T Fuentes and Stewart H Mostofsky and Amy J Bastian},
journal = {Neurology},
title = {Children with autism show specific handwriting impairments},
abstract = {BACKGROUND: Handwriting skills, which are crucial for success in school, communication, and building children's self-esteem, have been observed to be poor in individuals with autism. Little information exists on the handwriting of children with autism, without delineation of specific features that can contribute to impairments. As a result, the specific aspects of handwriting in which individuals with autism demonstrate difficulty remain unknown. METHODS: A case-control study of handwriting samples from children with and without autism spectrum disorders (ASD) was performed using the Minnesota Handwriting Assessment. Samples were scored on an individual letter basis in 5 categories: legibility, form, alignment, size, and spacing. Subjects were also tested on the Wechsler Intelligence Scale for Children-IV and the Physical and Neurological Examination for Subtle (Motor) Signs. RESULTS: We found that children with ASD do indeed show overall worse performance on a handwriting task than do age- and intelligence-matched controls. More specifically, children with ASD show worse quality of forming letters but do not show differences in their ability to correctly size, align, and space their letters. Within the ASD group, motor skills were significantly predictive of handwriting performance, whereas age, gender, IQ, and visuospatial abilities were not. CONCLUSIONS: We addressed how different elements of handwriting contribute to impairments observed in children with autism. Our results suggest that training targeting letter formation, in combination with general training of fine motor control, may be the best direction for improving handwriting performance in children with autism.},
affiliation = {Department of Neuroscience, Johns Hopkins School of Medicine, Baltimore, MD, USA.},
number = {19},
pages = {1532--7},
volume = {73},
year = {2009},
month = {Nov},
language = {eng},
keywords = {Humans, Case-Control Studies, Female, Psychomotor Performance, Male, Autistic Disorder, Adolescent, Motor Skills, Child, Handwriting, Predictive Value of Tests},
date-added = {2010-02-05 20:17:37 +0100},
date-modified = {2010-07-29 19:41:27 +0200},
doi = {10.1212/WNL.0b013e3181c0d48c},
pii = {73/19/1532},
pmid = {19901244},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5117},
rating = {0}
}

@article{Sundaram:2009p6327,
author = {Murali Sundaram and Michael J Smith and Dennis A Revicki and Betsy Elswick and Lesley-Ann Miller},
journal = {Journal of Clinical Epidemiology},
title = {Rasch analysis informed the development of a classification system for a diabetes-specific preference-based measure of health},
abstract = {OBJECTIVE: To develop a classification system (CS) for a diabetes-specific preference-based measure of health titled the Diabetes Utility Index (DUI). STUDY DESIGN AND SETTING: Factor analysis of the Audit of Diabetes-Dependent Quality-of-Life (ADDQoL) items (n=385) identified plausible attributes. An expert panel provided qualitative input, including additional items. Data from three pilot rounds on patients with type 1 or type 2 diabetes were analyzed using Rasch analysis (RA). In a validation survey, the final version of the CS was mailed along with the SF-12v2, Well-Being Questionnaire, and Diabetes Empowerment Scale Short Form to a convenience sample (type 1 or type 2 diabetes). RESULTS: Factor analysis identified two plausible attributes. Experts rated the importance of ADDQoL and additional items, described attributes from item sets and suggested severity levels. Three pilot rounds (n1=52, n2=65, n3=111) tested versions of a CS, containing five attributes with severity levels that were modified using RA and expert input. The final attributes were Physical Ability and Energy, Relationships, Mood and Feelings, Enjoyment of Diet, and Satisfaction with Management of Diabetes. The validation survey (n=396) results indicated satisfactory Rasch fit statistics, reliability, and severity scaling, whereas correspondence of responses to the CS with included measures suggested validity. CONCLUSION: Results provide initial report of the validity and reliability of the CS of the DUI.},
affiliation = {Department of Pharmaceutical Systems {\&} Policy, School of Pharmacy, West Virginia University, Morgantown, WV, USA. doctormurali@gmail.com},
number = {8},
pages = {845--56},
volume = {62},
year = {2009},
month = {Aug},
language = {eng},
keywords = {Diabetes Mellitus, Adult, Attitude to Health, Epidemiologic Methods, Humans, Aged, Psychometrics, Quality of Life, Female, Health Status Indicators, Expert Testimony, Male, Activities of Daily Living, Middle Aged},
date-added = {2010-02-23 08:14:15 +0100},
date-modified = {2010-02-23 08:14:15 +0100},
doi = {10.1016/j.jclinepi.2009.01.020},
pii = {S0895-4356(09)00094-8},
pmid = {19573741},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Sundaram-2009-Journal%20of%20Clinical%20Epidemiology_Rasch%20analysis%20infor.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6327},
rating = {0}
}

@article{Witten2009a,
author = {D M Witten and R J Tibshirani},
journal = {Statistical Applications in Genetics and Molecular Biology},
title = {Extensions of sparse canonical correlation analysis with applications to genomic data},
note = {Article 28},
number = {1},
volume = {8},
year = {2009},
date-added = {2010-01-12 14:26:52 +0100},
date-modified = {2010-07-29 19:50:47 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Witten-2009-Statistical%20Applications%20in%20Genetics%20and%20Molecular%20Biology_Extensions%20of%20sparse.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2561},
rating = {0}
}

@article{Ximenez:2010p11937,
author = {Carmen Xim{\'e}nez and Javier Revuelta},
journal = {Span J Psychol},
title = {Factorial invariance in a repeated measures design: an application to the study of person-organization fit},
abstract = {An important methodological concern of any research based on a person-environment (P-E) fit approach is the operationalization of the fit, which imposes some measurement requirements that are rarely empirically tested with statistical methods. Among them, the assessment of the P and E components along commensurate dimensions is possibly the most cited one. This paper proposes to test the equivalence across the P and E measures by analyzing the measurement invariance of a multi-group confirmatory factor analysis model. From a methodological point of view, the distinct aspect of this approach within the context of P-E fit research is that measurement invariance is assessed in a repeated measures design. An example illustrating the procedure in a person-organization (P-O) fit dataset is provided. Measurement invariance was tested at five different hierarchical levels: (1) configural, (2) first-order factor loadings, (3) second-order factor loadings, (4) residual variances of observed variables, and (5) disturbances of first-order factors. The results supported the measurement invariance across the P and O measures at the third level. The implications of these findings for P-E fit studies are discussed.},
affiliation = {Universidad Autonoma de Madrid, Departamento de Psicologia Social y Metodologia, Cantoblanco s/n. 28049 Madrid, Spain. carmen.ximenez@uam.es},
number = {1},
pages = {485--93},
volume = {13},
year = {2010},
month = {May},
language = {eng},
date-added = {2010-05-23 16:53:48 +0200},
date-modified = {2010-07-29 19:53:35 +0200},
pmid = {20480714},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Xim%C3%A9nez-2010-Span%20J%20Psychol_Factorial%20invariance.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11937},
rating = {4}
}

@article{Posthuma:2002p5723,
author = {Dani{\"e}lle Posthuma and Eco J C de Geus and Wim F C Baar{\'e} and H E Hulshoff Pol and Ren{\'e} S Kahn and Dorret I Boomsma},
journal = {Nat Neurosci},
title = {The association between brain volume and intelligence is of genetic origin},
number = {2},
pages = {83--4},
volume = {5},
year = {2002},
month = {Feb},
language = {eng},
keywords = {Humans, Intelligence, Twin Studies as Topic, Brain},
date-added = {2010-02-15 20:28:07 +0100},
date-modified = {2010-07-29 19:40:39 +0200},
doi = {10.1038/nn0202-83},
pii = {nn0202-83},
pmid = {11818967},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Posthuma-2002-Nat%20Neurosci_The%20association%20betw.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5723},
rating = {0}
}

@article{Garcia:2007p5930,
author = {Sofia F Garcia and David Cella and Steven B Clauser and Kathryn E Flynn and Thomas Lad and Jin-Shei Lai and Bryce B Reeve and Ashley Wilder Smith and Arthur A Stone and Kevin Weinfurt},
journal = {J Clin Oncol},
title = {Standardizing patient-reported outcomes assessment in cancer clinical trials: a patient-reported outcomes measurement information system initiative},
abstract = {Patient-reported outcomes (PROs), such as symptom scales or more broad-based health-related quality-of-life measures, play an important role in oncology clinical trials. They frequently are used to help evaluate cancer treatments, as well as for supportive and palliative oncology care. To be most beneficial, these PROs must be relevant to patients and clinicians, valid, and easily understood and interpreted. The Patient-Reported Outcomes Measurement Information System (PROMIS) Network, part of the National Institutes of Health Roadmap Initiative, aims to improve appreciably how PROs are selected and assessed in clinical research, including clinical trials. PROMIS is establishing a publicly available resource of standardized, accurate, and efficient PRO measures of major self-reported health domains (eg, pain, fatigue, emotional distress, physical function, social function) that are relevant across chronic illnesses including cancer. PROMIS is also developing measures of self-reported health domains specifically targeted to cancer, such as sleep/wake function, sexual function, cognitive function, and the psychosocial impacts of the illness experience (ie, stress response and coping; shifts in self-concept, social interactions, and spirituality). We outline the qualitative and quantitative methods by which PROMIS measures are being developed and adapted for use in clinical oncology research. At the core of this activity is the formation and application of item banks using item response theory modeling. We also present our work in the fatigue domain, including a short-form measure, as a sample of PROMIS methodology and work to date. Plans for future validation and application of PROMIS measures are discussed.},
affiliation = {Center on Outcomes, Research and Education, Evanston Northwestern Healthcare, Institute for Healthcare Studies, and Department of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, IL 60201, USA.},
number = {32},
pages = {5106--12},
volume = {25},
year = {2007},
month = {Nov},
language = {eng},
keywords = {Clinical Trials as Topic, Humans, Treatment Outcome, Reproducibility of Results, Quality of Life, Sickness Impact Profile, Psychometrics, Quality Indicators: Health Care, Patient Satisfaction, Neoplasms, Continuity of Patient Care},
date-added = {2010-02-18 23:15:09 +0100},
date-modified = {2010-02-18 23:15:10 +0100},
doi = {10.1200/JCO.2007.12.2341},
pii = {25/32/5106},
pmid = {17991929},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5930},
rating = {0}
}

@article{Gjerdingen:2007p13761,
author = {Dwenda K Gjerdingen and Barbara P Yawn},
journal = {Journal of the American Board of Family Medicine : JABFM},
title = {Postpartum depression screening: importance, methods, barriers, and recommendations for practice},
abstract = {BACKGROUND: Postpartum depression occurs in 10% to 20% of women who have recently given birth, but fewer than half of cases are recognized. The purpose of this review is to discuss the potential benefit of mass screening for improving postpartum depression recognition and outcomes. METHODS: A review of the literature was conducted by searching MEDLINE, using the key words "depression," "postpartum depression," and "mass screening." The Cochrane database was also searched for reviews on depression and postpartum depression. RESULTS: Opportunities for routine postpartum depression screening include mothers' postpartum office visits and their infants' well-child visits. Although several depression screens have been used in postpartum women, additional studies using large representative samples are needed to identify the ideal screening tool. Depression screening plus "high-risk" feedback to providers improves the recognition of depression. However, for screening to positively impact clinical outcomes, it needs to be combined with systems-based enhanced depression care that provides accurate diagnoses, strong collaborative relationships between primary care and mental health providers, and longitudinal case management, to assure appropriate treatment and follow-up. CONCLUSIONS: Postpartum depression screening improves recognition of the disorder, but improvement in clinical outcomes requires enhanced care that ensures adequate treatment and follow-up.},
affiliation = {Department of Family Medicine and Community Health, University of Minnesota, Minneapolis, MN, USA. dgjerdin@umphysicians.umn.edu},
number = {3},
pages = {280--8},
volume = {20},
year = {2007},
month = {Jan},
language = {eng},
keywords = {Humans, United States, Depression: Postpartum, Guidelines as Topic, Physician's Practice Patterns, Female},
date-added = {2010-07-28 23:03:21 +0200},
date-modified = {2010-07-28 23:03:21 +0200},
doi = {10.3122/jabfm.2007.03.060171},
pii = {20/3/280},
pmid = {17478661},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Gjerdingen-2007-Journal%20of%20the%20American%20Board%20of%20Family%20Medicine%20JABFM_Postpartum%20depressio.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13761},
rating = {0}
}

@article{Hansen:2009p12943,
author = {Nathan B Hansen and Courtenay E Cavanaugh and Ellen L Vaughan and Christian M Connell and David C Tate and Kathleen J Sikkema},
journal = {AIDS Behav},
title = {The influence of personality disorder indication, social support, and grief on alcohol and cocaine use among HIV-positive adults coping with AIDS-related bereavement},
abstract = {Substance use is prevalent among HIV-positive adults and linked to a number of adverse health consequences; however little is known about risk and protective factors that influence substance use among HIV-positive adults coping with AIDS-related bereavement. Using structural equation modeling (SEM), male gender, diagnostic indications of antisocial and borderline personality disorders (PD), and grief severity were tested as risk factors, and social support as a protective factor, for alcohol and cocaine use among a diverse sample of 268 HIV-positive adults enrolled in an intervention for AIDS-related bereavement. Results indicated that the hypothesized model fit the study data. Male gender, PD indication, and social support had direct effects on substance use. PD had significant indirect effects on both alcohol and cocaine use, mediated by social support, but not by grief. Finally, both PD and social support had significant, but opposite, effects on grief. Implications for intervention and prevention efforts are discussed.},
affiliation = {Department of Psychiatry, The Consultation Center, Yale University School of Medicine, 389 Whitney Avenue, New Haven, CT 06511, USA. nathan.hansen@yale.edu},
number = {2},
pages = {375--84},
volume = {13},
year = {2009},
month = {Apr},
language = {eng},
keywords = {Grief, Personality Disorders, Male, Depression, Adaptation: Psychological, Stress: Psychological, HIV Infections, Social Support, Acquired Immunodeficiency Syndrome, Adult, Female, Humans, Cocaine-Related Disorders, Bereavement, Alcohol Drinking},
date-added = {2010-06-25 21:47:49 +0200},
date-modified = {2010-06-25 21:47:49 +0200},
doi = {10.1007/s10461-007-9308-6},
pmid = {17846878},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Hansen-2009-AIDS%20Behav_The%20influence%20of%20per.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12943},
rating = {0}
}

@article{Lydersen:2007p12565,
author = {S Lydersen and V Pradhan and P Senchaudhuri and P Laake},
journal = {Stat Med},
title = {Choice of test for association in small sample unordered r x c tables},
abstract = {Pearson's chi-squared, the likelihood-ratio, and Fisher-Freeman-Halton's test statistics are often used to test the association of unordered r x c tables. Asymptotical, exact conditional, or exact conditional with mid-p adjustment methods are commonly used to compute the p-value. We have compared test power and significance level for these test statistics and p-value calculations in small sample r x c tables, mostly 3 x 2 and some with both r and c are greater than 2. After extensive simulations, in general we recommend using an exact conditional mid-p test with Pearson's chi-squared or Fisher-Freeman-Halton's statistic, which usually is the most powerful test yet preserve the approximate significance level. Moreover, we recommend that the asymptotic Pearson's chi-squared or other asymptotic tests not be used for small sample r x c tables.},
affiliation = {Unit for Applied Clinical Research, Department of Cancer Research and Molecular Medicine, The Norwegian University of Science and Technology, N-7006 Trondheim, Norway. stian.lydersen@ntnu.no},
number = {23},
pages = {4328--43},
volume = {26},
year = {2007},
month = {Oct},
language = {eng},
keywords = {Likelihood Functions, Transplantation: Homologous, Choice Behavior, Models: Statistical, United States, Sample Size, Norway},
date-added = {2010-06-15 22:18:03 +0200},
date-modified = {2010-06-15 22:18:03 +0200},
doi = {10.1002/sim.2839},
pmid = {17311220},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Lydersen-2007-Stat%20Med_Choice%20of%20test%20for%20a.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12565},
rating = {0}
}

@article{Howell:2005,
author = {S R Howell and D Jankowicz and S Becker},
journal = {Journal of Memory and Language},
title = {A model of grounded language acquisition: Sensorimotor features improve lexical and grammatical learning},
pages = {258--276},
volume = {53},
year = {2005},
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/Howell-2005-Journal%20of%20Memory%20and%20Language_A%20model%20of%20grounded.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2167},
rating = {0}
}

@article{Wongseree:2009p3389,
author = {Waranyu Wongseree and Anunchai Assawamakin and Theera Piroonratana and Saravudh Sinsomros and Chanin Limwongse and Nachol Chaiyaratana},
journal = {BMC Bioinformatics},
title = {Detecting purely epistatic multi-locus interactions by an omnibus permutation test on ensembles of two-locus analyses},
abstract = {BACKGROUND: Purely epistatic multi-locus interactions cannot generally be detected via single-locus analysis in case-control studies of complex diseases. Recently, many two-locus and multi-locus analysis techniques have been shown to be promising for the epistasis detection. However, exhaustive multi-locus analysis requires prohibitively large computational efforts when problems involve large-scale or genome-wide data. Furthermore, there is no explicit proof that a combination of multiple two-locus analyses can lead to the correct identification of multi-locus interactions. RESULTS: The proposed 2LOmb algorithm performs an omnibus permutation test on ensembles of two-locus analyses. The algorithm consists of four main steps: two-locus analysis, a permutation test, global p-value determination and a progressive search for the best ensemble. 2LOmb is benchmarked against an exhaustive two-locus analysis technique, a set association approach, a correlation-based feature selection (CFS) technique and a tuned ReliefF (TuRF) technique. The simulation results indicate that 2LOmb produces a low false-positive error. Moreover, 2LOmb has the best performance in terms of an ability to identify all causative single nucleotide polymorphisms (SNPs) and a low number of output SNPs in purely epistatic two-, three- and four-locus interaction problems. The interaction models constructed from the 2LOmb outputs via a multifactor dimensionality reduction (MDR) method are also included for the confirmation of epistasis detection. 2LOmb is subsequently applied to a type 2 diabetes mellitus (T2D) data set, which is obtained as a part of the UK genome-wide genetic epidemiology study by the Wellcome Trust Case Control Consortium (WTCCC). After primarily screening for SNPs that locate within or near 372 candidate genes and exhibit no marginal single-locus effects, the T2D data set is reduced to 7,065 SNPs from 370 genes. The 2LOmb search in the reduced T2D data reveals that four intronic SNPs in PGM1 (phosphoglucomutase 1), two intronic SNPs in LMX1A (LIM homeobox transcription factor 1, alpha), two intronic SNPs in PARK2 (Parkinson disease (autosomal recessive, juvenile) 2, parkin) and three intronic SNPs in GYS2 (glycogen synthase 2 (liver)) are associated with the disease. The 2LOmb result suggests that there is no interaction between each pair of the identified genes that can be described by purely epistatic two-locus interaction models. Moreover, there are no interactions between these four genes that can be described by purely epistatic multi-locus interaction models with marginal two-locus effects. The findings provide an alternative explanation for the aetiology of T2D in a UK population. CONCLUSION: An omnibus permutation test on ensembles of two-locus analyses can detect purely epistatic multi-locus interactions with marginal two-locus effects. The study also reveals that SNPs from large-scale or genome-wide case-control data which are discarded after single-locus analysis detects no association can still be useful for genetic epidemiology studies.},
affiliation = {Department of Electrical Engineering, Faculty of Engineering, King Mongkut's University of Technology North Bangkok, Bangkok, Thailand. waranyu.wongseree@gmail.com},
pages = {294},
volume = {10},
year = {2009},
month = {Jan},
language = {eng},
date-added = {2010-01-15 14:41:14 +0100},
date-modified = {2010-01-15 14:41:14 +0100},
doi = {10.1186/1471-2105-10-294},
pii = {1471-2105-10-294},
pmid = {19761607},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3389},
rating = {0}
}

@article{Carey:2001p521,
author = {Vincent Carey},
journal = {DSC 2001 Proceedings of the 2nd International Workshop on Distributed Statistical Computing},
title = {GEE solvers: case studies in DSC design and implementation},
abstract = {GEEs (generalized estimating equations) provide a framework for flexi- bly modeling clustered data. Generalized linear model (GLM) components are used to specify marginal mean and variance functions, and ``working'' covariance models specify multivariate structure. The indefiniteness of the estimation and inference framework is a basis for criticism from theoretical quarters (Crowder, Bka 1995), but also a basis for interesting interface design challenges and opportunities. I will comprehensively describe the redesign of S4/R-targeted GEE solvers. Basic issues include a) choice of language, b) representation of complex clustered data structures to accommodate, e.g., responses and predictors obtained on discordant timing sequences; c) inheritance from and interoperation with existing tools for multivariate modeling; d) choice of class/method decomposition to support recognition of statistical data types; d) weak implementation methods to ease retargeting to DSC platforms as they mature. Peripheral issues include a) exploitation of XML-based literate programming methods; b) automatic generation of javadoc-like hypertext doc for S4/R classes and methods.},
pages = {1--14},
year = {2001},
date-added = {2010-01-03 13:32:14 +0100},
date-modified = {2010-01-03 13:33:37 +0100},
URL = {http://www.ci.tuwien.ac.at/Conferences/DSC-2001},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Carey-2001-DSC%202001%20Proceedings%20of%20the%202nd%20International%20Workshop%20on%20Distributed%20Statistical%20Computing_GEE%20solvers%20case%20st.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p521},
rating = {0}
}

@article{deLeeuw:2010p4007,
author = {Jan de Leeuw},
title = {FINAL REPORT TO THE EPA ON MULTILEVEL MODELS FOR GENERALIZATION},
date-added = {2010-01-17 23:32:30 +0100},
date-modified = {2010-07-29 20:45:39 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/de%20Leeuw--_FINAL%20REPORT%20TO%20THE.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4007},
rating = {0}
}

@article{Rosenberg:2006p6507,
author = {Noah A Rosenberg and Magnus Nordborg},
journal = {Genetics},
title = {A general population-genetic model for the production by population structure of spurious genotype-phenotype associations in discrete, admixed or spatially distributed populations},
abstract = {In linkage disequilibrium mapping of genetic variants causally associated with phenotypes, spurious associations can potentially be generated by any of a variety of types of population structure. However, mathematical theory of the production of spurious associations has largely been restricted to population structure models that involve the sampling of individuals from a collection of discrete subpopulations. Here, we introduce a general model of spurious association in structured populations, appropriate whether the population structure involves discrete groups, admixture among such groups, or continuous variation across space. Under the assumptions of the model, we find that a single common principle--applicable to both the discrete and admixed settings as well as to spatial populations--gives a necessary and sufficient condition for the occurrence of spurious associations. Using a mathematical connection between the discrete and admixed cases, we show that in admixed populations, spurious associations are less severe than in corresponding mixtures of discrete subpopulations, especially when the variance of admixture across individuals is small. This observation, together with the results of simulations that examine the relative influences of various model parameters, has important implications for the design and analysis of genetic association studies in structured populations.},
affiliation = {Department of Human Genetics, Bioinformatics Program and the Life Sciences Institute, University of Michigan, Michigan 48109-2218, USA. rnoah@umich.edu},
number = {3},
pages = {1665--78},
volume = {173},
year = {2006},
month = {Jul},
language = {eng},
keywords = {Genetics: Population, Genotype, Models: Genetic, Phenotype, Computer Simulation},
date-added = {2010-02-23 08:37:23 +0100},
date-modified = {2010-02-23 08:37:23 +0100},
doi = {10.1534/genetics.105.055335},
pii = {genetics.105.055335},
pmid = {16582435},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6507},
rating = {0}
}

@article{Dittrich:1981p2342,
author = {R Dittrich and R Hatzinger},
title = {Using "GLIM" for computing the Rasch model and the corresponding multiplicative Poisson model},
year = {1981},
date-added = {2010-01-10 13:27:48 +0100},
date-modified = {2010-01-10 13:28:38 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Dittrich-1981-_Using%20%22GLIM%22%20for%20com.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2342},
rating = {0}
}

@article{Shepard:2010p3630,
author = {L A Shepard},
title = {Evaluating test validity},
date-added = {2010-01-16 19:17:40 +0100},
date-modified = {2010-01-16 19:18:11 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Shepard--_Evaluating%20test%20vali.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3630},
rating = {0}
}

@article{Lenzenweger:2008p4375,
author = {Mark F Lenzenweger},
journal = {Psychiatr Clin North Am},
title = {Epidemiology of personality disorders},
abstract = {The prevalence of personality disorders (PDs) in the nonclinical community population was largely unknown through the early 1990s. Over the past 10 years the epidemiology of PD in the community has been resolved through the study of large, nonclinical populations that have used validated structured psychiatric interviews designed specifically for PDs. The median prevalence for "any PD" is 10.6%, which is reasonably consistent across six major studies spanning three nations. Because 1 in 10 people suffers from a diagnosable PD and the disorders are associated with high levels of service use, it follows that personality pathology represents a major public health concern, a major research target for psychopathologists, and a consuming focus for clinicians.},
affiliation = {Department of Psychology, State University of New York at Binghamton, Binghamton, NY 13902, USA. mlenzen@binghamton.edu},
number = {3},
pages = {395--403, vi},
volume = {31},
year = {2008},
month = {Sep},
language = {eng},
keywords = {United States, Longitudinal Studies, Aged, Female, Adult, Male, Community Mental Health Services, Cross-Sectional Studies, Aged: 80 and over, Diagnostic and Statistical Manual of Mental Disorders, Middle Aged, Cross-Cultural Comparison, Personality Disorders, Terminology as Topic, Sex Factors, Utilization Review, Health Surveys, Psychometrics, Humans, Personality Assessment},
date-added = {2010-01-28 16:30:32 +0100},
date-modified = {2010-01-28 16:30:35 +0100},
doi = {10.1016/j.psc.2008.03.003},
pii = {S0193-953X(08)00031-2},
pmid = {18638642},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4375},
rating = {3}
}

@article{Blokland:2008p8947,
author = {Gabri{\"e}lla A M Blokland and Katie L McMahon and Jan Hoffman and Gu Zhu and Matthew Meredith and Nicholas G Martin and Paul M Thompson and Greig I de Zubicaray and Margaret J Wright},
journal = {Biol Psychol},
title = {Quantifying the heritability of task-related brain activation and performance during the N-back working memory task: a twin fMRI study},
abstract = {Working memory-related brain activation has been widely studied, and impaired activation patterns have been reported for several psychiatric disorders. We investigated whether variation in N-back working memory brain activation is genetically influenced in 60 pairs of twins, (29 monozygotic (MZ), 31 dizygotic (DZ); mean age 24.4+/-1.7S.D.). Task-related brain response (BOLD percent signal difference of 2 minus 0-back) was measured in three regions of interest. Although statistical power was low due to the small sample size, for middle frontal gyrus, angular gyrus, and supramarginal gyrus, the MZ correlations were, in general, approximately twice those of the DZ pairs, with non-significant heritability estimates (14-30%) in the low-moderate range. Task performance was strongly influenced by genes (57-73%) and highly correlated with cognitive ability (0.44-0.55). This study, which will be expanded over the next 3 years, provides the first support that individual variation in working memory-related brain activation is to some extent influenced by genes.},
affiliation = {Genetic Epidemiology Laboratory, Queensland Institute of Medical Research, Brisbane, Australia.},
number = {1},
pages = {70--9},
volume = {79},
year = {2008},
month = {Sep},
language = {eng},
keywords = {Phenotype, Individuality, Adult, Image Processing: Computer-Assisted, Oxygen, Models: Genetic, Brain Chemistry, Memory: Short-Term, Male, Brain, Magnetic Resonance Imaging, Psychomotor Performance, Female, Humans, Models: Statistical},
date-added = {2010-03-22 13:06:17 +0100},
date-modified = {2010-03-22 13:06:18 +0100},
doi = {10.1016/j.biopsycho.2008.03.006},
pii = {S0301-0511(08)00068-9},
pmid = {18423837},
URL = {http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6T4T-4S2MJ0Y-2&_user=2432700&_coverDate=09%252F30%252F2008&_rdoc=1&_fmt=high&_orig=search&_sort=d&_docanchor=&view=c&_acct=C000057263&_version=1&_urlVersion=0&_userid=2432700&md5=24c21926a63f5d82846a5857abbcb0be},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Blokland-2008-Biol%20Psychol_Quantifying%20the%20heri.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8947},
rating = {0}
}

@article{Garin:2009p9441,
author = {Olatz Garin and Montse Ferrer and Angels Pont and Montserrat Ru{\'e} and Anna Kotzeva and Ingela Wiklund and Eric Van Ganse and Jordi Alonso},
journal = {Qual Life Res},
title = {Disease-specific health-related quality of life questionnaires for heart failure: a systematic review with meta-analyses},
abstract = {BACKGROUND: Heart failure (HF) is an increasingly common condition affecting patients' health-related quality of life (HRQL). However, there is little literature comparing HF-specific instruments. Our aim was to evaluate and compare data on the conceptual model and metric properties (reliability, validity and responsiveness) of HF-specific HRQL instruments, by performing a systematic review with meta-analyses. METHODS AND RESULTS: Of 2,541 articles initially identified, 421 were full-text reviewed. Ninety-four reported data on five questionnaires: Minnesota Living with Heart Failure Questionnaire (MLHFQ), Chronic Heart Failure Questionnaire (CHFQ), Quality of Life Questionnaire for Severe Heart Failure (QLQ-SHF), Kansas City Cardiomyopathy Questionnaire (KCCQ) and Left Ventricular Dysfunction (LVD-36) questionnaire. Metric properties (reliability, validity and responsiveness) were summarised using meta-analysis for pools above five estimates. Cronbach's alpha coefficients were generally high (0.83-0.95) for overall scores and scales measuring physical health. Associations with four validity criteria (New York Heart Association [NYHA] class, six-minute walk test [6MWT] and short form-36 [SF-36] 'Physical' and 'Social Functioning') were moderate to strong (0.41-0.84), except for those between two CHFQ domains (fatigue and dyspnoea) and the NYHA (0.19 and 0.22). Pooled estimates of change from eight meta-analyses showed the MLHFQ to be highly responsive, with changes in overall score ranging from -9.6 (95% confidence interval [CI]: -4.1; -15.2) for placebo to -17.7 (95% CI: -15.3; -20.2) for pacing devices. The CHFQ and KCCQ also showed good sensitivity to change. CONCLUSIONS: Most of the questionnaires studied met minimum psychometric criteria, though current evidence would primarily support the use of the MLHFQ, followed by the KCCQ and CHFQ.},
affiliation = {Health Services Research Unit, IMIM-Hospital del Mar, Doctor Aiguader 80, 08003, Barcelona, Spain.},
number = {1},
pages = {71--85},
volume = {18},
year = {2009},
month = {Feb},
language = {eng},
keywords = {Reproducibility of Results, Heart Failure, Health Status, Humans, Quality of Life, Questionnaires},
date-added = {2010-03-23 19:35:52 +0100},
date-modified = {2010-07-29 19:48:28 +0200},
doi = {10.1007/s11136-008-9416-4},
pmid = {19052916},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Garin-2009-Qual%20Life%20Res_Disease-specific%20hea.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p9441},
rating = {0}
}

@article{Mackenzie:2008p12973,
author = {Sam J Mackenzie and Nancy Getchell and Katherine Deutsch and Annemiek Wilms-Floet and Jane E Clark and Jill Whitall},
journal = {Human Movement Science},
title = {Multi-limb coordination and rhythmic variability under varying sensory availability conditions in children with DCD},
abstract = {Children with Developmental Coordination Disorder (DCD) have sensory processing deficits; how do these influence the interface between sensory input and motor performance? Previously, we found that children with DCD were less able to organize and maintain a gross motor coordination task in time to an auditory cue, particularly at higher frequencies [Whitall, J., Getchell, N., McMenamin, S., Horn, C., Wilms-Floet, A., {\&} Clark, J. (2006). Perception-action coupling in children with and without DCD: Frequency locking between task relevant auditory signals and motor responses in a dual motor task. Child: Care, Health, and Development, 32, 679-692]. In the present study, we examine the same task (clapping in-phase to marching on a platform) under conditions involving the removal of vision and hearing. Eleven children with DCD (mean=7.21, SD=0.52 years), 7 typically developing (TD) children (mean=6.95+/-0.72 years), and 10 adults performed continuous clapping while marching under four conditions: with vision and hearing, without vision, without hearing, and without both. Results showed no significant condition effects for any measure taken. The DCD group was more variable in phasing their claps and footfalls than both the adult group and the TD group. There were also significant group effects for inter-clap interval coefficient of variation and inter-footfall interval coefficient of variation, with the DCD group being the most variable for both measures. Coherence analysis between limb combinations (e.g., left arm-right arm, right arm-left leg) revealed that the adults exhibited significantly greater coherence for each combination than both of the children's groups. The TD group showed significantly greater coherence than the DCD group for every limb combination except foot-foot and left hand-right foot. Measures of approximate entropy indicated that adults differed from children both with and without DCD in the structure of the variability across a trial with adults showing more complexity. Children with DCD are able to accomplish a self-initiated gross-motor coordination task but with increased variability for most but not all measures compared to typically developing children. The availability of visual and/or auditory information does not play a significant role in stabilizing temporal coordination of this task, suggesting that these are not salient sources of information for this particular task.},
affiliation = {Department of Health, Nutrition, and Exercise Sciences, 157 Human Performance Laboratory, University of Delaware, Newark, DE 19716, United States.},
number = {2},
pages = {256--69},
volume = {27},
year = {2008},
month = {Apr},
language = {eng},
keywords = {Extremities, Adolescent, Female, Proprioception, Male, Severity of Illness Index, Child, Cues, Motor Skills Disorders, Humans, Adult},
date-added = {2010-06-25 22:28:31 +0200},
date-modified = {2010-06-25 22:28:32 +0200},
doi = {10.1016/j.humov.2008.02.010},
pii = {S0167-9457(08)00011-0},
pmid = {18394735},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Mackenzie-2008-Human%20Movement%20Science_Multi-limb%20coordinat.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12973},
rating = {0}
}

@article{Kunz:1998,
author = {R Kunz and AD Oxman},
journal = {British Medical Journal},
title = {The unpredictability paradox: review of empirical comparisons of randomised and non-randomised clinical trials},
abstract = {OBJECTIVE: To summarise comparisons of randomised clinical trials and non-randomised clinical trials, trials with adequately concealed random allocation versus inadequately concealed random allocation, and high quality trials versus low quality trials where the effect of randomisation could not be separated from the effects of other methodological manoeuvres. DESIGN: Systematic review. SELECTION CRITERIA: Cohorts or meta-analyses of clinical trials that included an empirical assessment of the relation between randomisation and estimates of effect. DATA SOURCES: Cochrane Review Methodology Database, Medline, SciSearch, bibliographies, hand searching of journals, personal communication with methodologists, and the reference lists of relevant articles. MAIN OUTCOME MEASURES: Relation between randomisation and estimates of effect. RESULTS: Eleven studies that compared randomised controlled trials with non-randomised controlled trials (eight for evaluations of the same intervention and three across different interventions), two studies that compared trials with adequately concealed random allocation and inadequately concealed random allocation, and five studies that assessed the relation between quality scores and estimates of treatment effects, were identified. Failure to use random allocation and concealment of allocation were associated with relative increases in estimates of effects of 150% or more, relative decreases of up to 90%, inversion of the estimated effect and, in some cases, no difference. On average, failure to use randomisation or adequate concealment of allocation resulted in larger estimates of effect due to a poorer prognosis in non-randomly selected control groups compared with randomly selected control groups. CONCLUSIONS: Failure to use adequately concealed random allocation can distort the apparent effects of care in either direction, causing the effects to seem either larger or smaller than they really are. The size of these distortions can be as large as or larger than the size of the effects that are to be detected.},
pages = {1185--1190},
volume = {317},
year = {1998},
date-added = {2010-01-03 19:36:10 +0100},
date-modified = {2010-01-03 19:36:10 +0100},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1037},
rating = {0}
}

@article{McLaughlin:1987p2696,
author = {M E McLaughlin and F Drasgow},
journal = {Applied Psychological Measurement},
title = {Lord's Chi-Square Test of Item Bias With Estimated and With Known Person Parameters},
number = {2},
pages = {161--173},
volume = {11},
year = {1987},
date-added = {2010-01-13 10:15:16 +0100},
date-modified = {2010-07-29 19:16:52 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/McLaughlin-1987-Applied%20Psychological%20Measurement_Lord's%20Chi-Square%20Te.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2696},
rating = {0}
}

@article{Cherkas:2004p5243,
author = {Lynn F Cherkas and Elizabeth C Oelsner and Y T Mak and Anna Valdes and Tim D Spector},
journal = {Twin Res},
title = {Genetic influences on female infidelity and number of sexual partners in humans: a linkage and association study of the role of the vasopressin receptor gene (AVPR1A)},
abstract = {In humans, in contrast to animals, the genetic influences on infidelity are unclear. We report here a large study of over 1600 unselected United Kingdom female twin pairs who confidentially reported previous episodes of infidelity and total lifetime number of sexual partners, as well as attitudes towards infidelity. Our findings demonstrate that infidelity and number of sexual partners are both under moderate genetic influence (41% and 38% heritable, respectively) and the genetic correlation between these two traits is strong (47%). Conversely, attitudes towards infidelity are driven by shared and unique environmental, but not genetic, influences. A genome-wide linkage scan identified three suggestive but nonsignificant linkage areas associated with infidelity and number of sexual partners on chromosomes 3, 7 and 20 with a maximum LOD score of 2.46. We were unsuccessful in associating infidelity or number of sexual partners with a locus implicated in other mammals' sexual behavior, the vasopressin receptor gene. Nonetheless, our findings on the heritability of sexual infidelity and number of sexual partners provide support for certain evolutionary theories of human sexual behavior, as well as justifying further genetic and molecular research in this domain.},
affiliation = {Twin Research {\&} Genetic Epidemiology Unit, St Thomas' Hospital, London, United Kingdom.},
number = {6},
pages = {649--58},
volume = {7},
year = {2004},
month = {Dec},
language = {eng},
keywords = {Aged: 80 and over, Middle Aged, Female, Sexual Partners, Humans, Twins, Aged, Sexual Behavior, Linkage (Genetics), Receptors: Vasopressin, Great Britain, Adult, Extramarital Relations},
date-added = {2010-02-09 21:58:37 +0100},
date-modified = {2010-02-09 21:58:37 +0100},
doi = {10.1375/1369052042663922},
pmid = {15607016},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Cherkas-2004-Twin%20Res_Genetic%20influences%20o.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5243},
rating = {0}
}

@article{Schwartz:2006p6468,
author = {Todd A Schwartz and Jonathan S Denne},
journal = {Stat Med},
title = {A two-stage sample size recalculation procedure for placebo- and active-controlled non-inferiority trials},
abstract = {Many non-inferiority trials of a test treatment versus an active control may also, if ethical, incorporate a placebo arm. Inclusion of a placebo arm enables a direct assessment of assay sensitivity. It also allows construction of a non-inferiority test that avoids the problematic specification of an absolute non-inferiority margin, and instead evaluates whether the test treatment preserves a pre-specified proportion of the effect of the active control over placebo. We describe a two-stage procedure for sample size recalculation in such a setting that maintains the desired power more closely than a fixed sample approach when the magnitude of the effect of the active control differs from that anticipated. We derive an allocation rule for randomization under which the procedure preserves the type I error rate, and show that this coincides with that previously presented for optimal allocation of the sample size among the three treatment arms.},
affiliation = {Department of Biostatistics, School of Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-7420, USA. tschwart@bios.unc.edu},
number = {19},
pages = {3396--406},
volume = {25},
year = {2006},
month = {Oct},
language = {eng},
keywords = {Controlled Clinical Trials as Topic, Sample Size, Random Allocation, Placebos, Research Design, Computer Simulation, Drug Evaluation, Humans},
date-added = {2010-02-23 08:34:24 +0100},
date-modified = {2010-02-23 08:34:24 +0100},
doi = {10.1002/sim.2651},
pmid = {16900573},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Schwartz-2006-Stat%20Med_A%20two-stage%20sample%20s.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6468},
rating = {0}
}

@article{vanMierlo:2008p6249,
author = {H van Mierlo and J K Vermunt and C G Rutte},
journal = {Organizational Research Methods Online},
title = {Composing Group-Level Constructs From Individual-Level Survey Data},
abstract = {Group-level constructs are often derived from individual-level data. This procedure requires a composition model, specifying how the lower level data can be combined to compose the higher level construct. Two common composition methods are direct consensus composition, where items refer to the individual, and referent-shift consensus composition, where items refer to the group. The use and selection of composition methods is subject to a number of problems, calling for more systematic work on the empirical properties of and distinction between constructs composed by different methods. To facilitate and encourage such work, the authors present a methodological framework for addressing the distinction between and the baseline psychometric quality of composed group constructs, illustrated by an empirical example in the group job-design domain. The framework primarily represents a developmen- tal tool with applications in multilevel theory building and scale construction, but also in meta-analysis or secondary analysis, and more general, the validation of group constructs.},
year = {2008},
date-added = {2010-02-19 21:24:35 +0100},
date-modified = {2010-02-19 21:25:34 +0100},
doi = {10.1177/1094428107309322},
local-url = {file://localhost/Users/chl/Dropbox/Papers/van%20Mierlo-2008-Organizational%20Research%20Methods%20Online_Composing%20Group-Leve.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6249},
rating = {0}
}

@article{Zheng:2010p6901,
author = {Yingye Zheng and Patrick J Heagerty and Li Hsu and Polly A Newcomb},
journal = {Biometrics},
title = {On Combining Family-Based and Population-Based Case-Control Data in Association Studies},
abstract = {Summary. Combining data collected from different sources can potentially enhance statistical efficiency in estimating effects of environmental or genetic factors or gene-environment interactions. However, combining data across studies becomes complicated when data are collected under different study designs, such as family-based and unrelated individual-based case-control design. In this article, we describe likelihood-based approaches that permit the joint estimation of covariate effects on disease risk under study designs that include cases, relatives of cases, and unrelated individuals. Our methods accommodate familial residual correlation and a variety of ascertainment schemes. Extensive simulation experiments demonstrate that the proposed methods for estimation and inference perform well in realistic settings. Efficiencies of different designs are contrasted in the simulation. We applied the methods to data from the Colorectal Cancer Family Registry.},
affiliation = {Biostatistics and Biomathematics Program, Fred Hutchinson Cancer Research Center, Fairview Avenue North, M2-B500, Seattle, Washington 98109, U.S.A.},
pages = {},
year = {2010},
month = {Feb},
language = {ENG},
date-added = {2010-03-06 11:56:39 +0100},
date-modified = {2010-03-06 11:56:39 +0100},
doi = {10.1111/j.1541-0420.2010.01393.x},
pii = {BIOM1393},
pmid = {20163402},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Zheng-2010-Biometrics_On%20Combining%20Family.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6901},
rating = {0}
}

@article{Prescott:2004p11300,
author = {Carol A Prescott},
journal = {Behav Genet},
title = {Using the Mplus computer program to estimate models for continuous and categorical data from twins},
abstract = {Historically, the focus of behavior genetic research was to obtain estimates of the sources of familial resemblance for a single phenotype. Current research strategies have moved beyond heritability estimates to the search for physiological and behavioral mechanisms by which genetic risk is translated into individual differences in behavior and disease liability. Such research questions often require multivariate designs and complex analytic models, including the analysis of continuous and categorical dependent variables within the same model. Recent advances in computer software for categorical data analysis have increased the tools available for researchers in behavior genetics. This paper describes how to use the Mplus software program (Muth{\'e}n and Muth{\'e}n, 1998, 2002) for the analysis of data obtained from twins. Example analyses include two- and five-group twin models for univariate and bivariate continuous and categorical variables. Data on alcoholism and age at first drink drawn from the Virginia Adult Twin Study of Psychiatric and Substance Use Disorders are used to illustrate how Mplus can be used to analyze multiple-category variables, recode and transform variables, select subgroups for analysis, handle subjects with incomplete data, include constraints to ensure non-negative loadings, include model covariates, model sex differences, and test alternative hypotheses about mediation of genetic risk by measured variables.},
affiliation = {Virginia Institute for Psychiatric and Behavioral Genetics, Department of Psychiatry, Virginia Commonwealth University, Richmond, Virginia 23298-0126. cprescot@hsc.vcu.edu},
number = {1},
pages = {17--40},
volume = {34},
year = {2004},
month = {Jan},
language = {eng},
keywords = {Humans, Genetic Variation, Diseases in Twins, Adult, Models: Genetic, Analysis of Variance, Female, Longitudinal Studies, Models: Statistical, Genetic Predisposition to Disease, Middle Aged, Phenotype, Twins: Dizygotic, Twins: Monozygotic, Male, Adolescent, Software, Alcoholism, Mathematical Computing},
date-added = {2010-04-26 22:35:30 +0200},
date-modified = {2010-07-29 20:09:06 +0200},
doi = {10.1023/B:BEGE.0000009474.97649.2f},
pii = {474993},
pmid = {14739694},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Prescott-2004-Behav%20Genet_Using%20the%20Mplus%20comp.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11300},
rating = {0}
}

@article{Sohn:2004p8014,
author = {Chang-Ho Sohn and Raymond W Lam},
journal = {Curr Psychiatry Rep},
title = {Treatment of seasonal affective disorder: unipolar versus bipolar differences},
abstract = {Evidence-based treatments for seasonal affective disorder (SAD) include light therapy and pharmacotherapy. We briefly review the diagnosis and treatment of SAD, focusing on clinical and treatment differences between patients with unipolar and bipolar illness. Special considerations for the management of SAD in patients with bipolar disorder are discussed, including the need to monitor for

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