text:
N Hetrick and Simon Tavar{\'e} and Rafael A Irizarry},
journal = {Bioinformatics},
title = {R/Bioconductor software for Illumina's Infinium whole-genome genotyping BeadChips},
abstract = {Illumina produces a number of microarray-based technologies for human genotyping. An Infinium BeadChip is a two-color platform that types between 10(5) and 10(6) single nucleotide polymorphisms (SNPs) per sample. Despite being widely used, there is a shortage of open source software to process the raw intensities from this platform into genotype calls. To this end, we have developed the R/Bioconductor package crlmm for analyzing BeadChip data. After careful preprocessing, our software applies the CRLMM algorithm to produce genotype calls, confidence scores and other quality metrics at both the SNP and sample levels. We provide access to the raw summary-level intensity data, allowing users to develop their own methods for genotype calling or copy number analysis if they wish. AVAILABILITY AND IMPLEMENTATION: The crlmm Bioconductor package is available from http://www.bioconductor.org. Data packages and documentation are available from http://rafalab.jhsph.edu/software.html.},
affiliation = {Bioinformatics Division, The Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville Victoria 3052, Australia. mritchie@wehi.edu.au},
number = {19},
pages = {2621--3},
volume = {25},
year = {2009},
month = {Oct},
language = {eng},
date-added = {2010-01-08 22:28:12 +0100},
date-modified = {2010-01-08 22:28:12 +0100},
doi = {10.1093/bioinformatics/btp470},
pii = {btp470},
pmid = {19661241},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Ritchie-2009-Bioinformatics_RBioconductor%20softw.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1681},
rating = {0}
}

@article{Sher:2000p8018,
author = {L Sher},
journal = {Med Hypotheses},
title = {The role of genetic factors in the etiology of seasonality and seasonal affective disorder: an evolutionary approach},
abstract = {The degree to which seasonal changes affect mood, energy, sleep, appetite, food preference, or the wish to socialize with other people has been called seasonality. Seasonal affective disorder (SAD), a condition where depressions in fall and winter alternate with non-depressed periods in spring and summer, is the most marked form of seasonality. Several lines of evidence suggest that genetic factors play an important role in the etiology of seasonality and SAD. Millions of years of evolution and adaptation have optimized human biochemical and physiological systems for function and survival under equatorial environmental conditions. Modern humans began their migration out of Africa only about 150 000 years ago. Little change in our 'equatorial' systems might have been expected over this relatively short evolutionary time-span. The author suggests that a genetic susceptibility to seasonal changes in mood and behavior is a genetic predisposition to an insufficient adaptation to temperate and high latitudes.},
affiliation = {Rockville, Maryland, USA.},
number = {5},
pages = {704--7},
volume = {54},
year = {2000},
month = {May},
language = {eng},
keywords = {Seasons, Genetic Predisposition to Disease, Evolution, Humans, Seasonal Affective Disorder},
date-added = {2010-03-20 19:36:39 +0100},
date-modified = {2010-03-20 19:36:43 +0100},
doi = {10.1054/mehy.1999.0932},
pii = {S0306-9877(99)90932-5},
pmid = {10859671},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Sher-2000-Med%20Hypotheses_The%20role%20of%20genetic.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8018},
rating = {4}
}

@article{Morey:2009p1827,
author = {Leslie C Morey and Christopher J Hopwood},
journal = {Drug Alcohol Depend},
title = {An IRT-based measure of alcohol trait severity and the role of traitedness in trait validity: a reanalysis of Project MATCH data},
abstract = {With the variability among alcohol users in mind, Project MATCH hypothesized several treatment matching relationships based on alcohol severity and alcohol dependence, but found limited effects. However, it is possible that the existing examinations of Project MATCH data did not fully characterize the nature of severity of alcohol dependence, as these analyses have examined dependence severity as an additive symptom count similar to the diagnostic strategy represented in the DSM-IV. We examined dependence severity as a latent trait hypothesized to have a characteristic developmental progression using Item Response Theory (IRT), and examined the implications of this approach to severity scaling in the Project MATCH data. The IRT-derived empirical continuum corresponded to an earlier theoretical model of the developmental course of alcoholism, demonstrated convergent and discriminant validity, and incremented other severity markers in predicting Alcoholics Anonymous involvement, social functioning, and readiness of change. However, it did not predict treatment outcomes or other validating variables more effectively than the measures used in the original design. Furthermore, an empirical index of person fit to this continuum did not moderate trait-validator relations including treatment outcome and treatment matching effects. Overall, findings did not support the incremental utility of a latent trait representation of alcohol severity.},
affiliation = {Department of Psychology, Texas A{\&}M University, College Station, TX 77843-4235, USA. lmorey@psych.tamu.edu},
number = {3},
pages = {177--84},
volume = {105},
year = {2009},
month = {Dec},
language = {eng},
keywords = {Psychological Theory, Adult, Psychometrics, Models: Statistical, Personality, Female, Randomized Controlled Trials as Topic, Male, Humans, Alcoholism, Severity of Illness Index, Predictive Value of Tests, Treatment Outcome},
date-added = {2010-01-09 23:00:34 +0100},
date-modified = {2010-01-09 23:00:34 +0100},
doi = {10.1016/j.drugalcdep.2009.06.025},
pii = {S0376-8716(09)00262-2},
pmid = {19665326},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1827},
rating = {0}
}

@article{Keller:2006p2498,
author = {Matthew C Keller and Geoffrey Miller},
journal = {Behav Brain Sci},
title = {Resolving the paradox of common, harmful, heritable mental disorders: which evolutionary genetic models work best?},
abstract = {Given that natural selection is so powerful at optimizing complex adaptations, why does it seem unable to eliminate genes (susceptibility alleles) that predispose to common, harmful, heritable mental disorders, such as schizophrenia or bipolar disorder? We assess three leading explanations for this apparent paradox from evolutionary genetic theory: (1) ancestral neutrality (susceptibility alleles were not harmful among ancestors), (2) balancing selection (susceptibility alleles sometimes increased fitness), and (3) polygenic mutation-selection balance (mental disorders reflect the inevitable mutational load on the thousands of genes underlying human behavior). The first two explanations are commonly assumed in psychiatric genetics and Darwinian psychiatry, while mutation-selection has often been discounted. All three models can explain persistent genetic variance in some traits under some conditions, but the first two have serious problems in explaining human mental disorders. Ancestral neutrality fails to explain low mental disorder frequencies and requires implausibly small selection coefficients against mental disorders given the data on the reproductive costs and impairment of mental disorders. Balancing selection (including spatio-temporal variation in selection, heterozygote advantage, antagonistic pleiotropy, and frequency-dependent selection) tends to favor environmentally contingent adaptations (which would show no heritability) or high-frequency alleles (which psychiatric genetics would have already found). Only polygenic mutation-selection balance seems consistent with the data on mental disorder prevalence rates, fitness costs, the likely rarity of susceptibility alleles, and the increased risks of mental disorders with brain trauma, inbreeding, and paternal age. This evolutionary genetic framework for mental disorders has wide-ranging implications for psychology, psychiatry, behavior genetics, molecular genetics, and evolutionary approaches to studying human behavior.},
affiliation = {Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond, VA 23219. matthew.c.keller@gmail.com},
number = {4},
pages = {385-404; discussion 405--52},
volume = {29},
year = {2006},
month = {Aug},
language = {eng},
keywords = {Humans, Models: Genetic, Adaptation: Psychological, Evolution: Molecular, Selection: Genetic, Mental Disorders, Adaptation: Physiological, Quantitative Trait Loci, Genetic Predisposition to Disease},
date-added = {2010-01-12 13:35:01 +0100},
date-modified = {2010-01-12 13:35:01 +0100},
doi = {10.1017/S0140525X06009095},
pii = {S0140525X06009095},
pmid = {17094843},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Keller-2006-Behav%20Brain%20Sci_Resolving%20the%20parado.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2498},
rating = {0}
}

@article{Rawlings:2008p14053,
author = {David Rawlings and Ann Locarnini},
journal = {Journal of Research in Personality},
title = {Dimensional schizotypy, autism, and unusual word associations in artists and scientists},
abstract = {Studies from a range of perspectives provide evidence for a relationship between creativity and the tendency to mental illness. The present study further examined this issue by administering ques- tionnaires measuring the minor features of psychosis and autism to 31 professional ``artists'' (visual artists and musicians) and 28 professional ``scientists'' (biological scientists and physical scientists/ mathematicians). The Oxford--Liverpool Inventory of Feelings and Experiences (O--LIFE), the Hypomanic Personality Scale, and the Autism-Spectrum Quotient (AQ), were administered, in addi- tion to a shortened form of the Kent--Rosanoff Word Association Scale. The results provided strong support for the connection of artistic creativity to positive schizotypy and hypomania and the ten- dency to make unusual word associations, and somewhat weaker support for the connection of sci- entific creativity to certain components of the autism spectrum.},
pages = {465--471},
volume = {42},
year = {2008},
date-added = {2010-08-18 10:00:57 +0200},
date-modified = {2010-08-18 10:02:21 +0200},
doi = {10.1016/j.jrp.2007.06.005},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Rawlings-2008-Journal%20of%20Research%20in%20Personality_Dimensional%20schizoty.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p14053},
rating = {0}
}

@article{Mokkink:2010p7875,
author = {Lidwine B Mokkink and Caroline B Terwee and Dirk L Knol and Paul W Stratford and Jordi Alonso and Donald L Patrick and Lex M Bouter and Henrica Cw De Vet},
journal = {BMC Med Res Methodol},
title = {The COSMIN checklist for evaluating the methodological quality of studies on measurement properties: A clarification of its content},
abstract = {ABSTRACT: BACKGROUND: The COSMIN checklist (COnsensus-based Standards for the selection of health status Measurement INstruments) was developed in an international Delphi study to evaluate the methodological quality of studies on measurement properties of health-related patient reported outcomes (HR-PROs). In this paper, we explain our choices for the design requirements and preferred statistical methods for which no evidence is available in the literature or on which the Delphi panel members had substantial discussion. METHODS: The issues described in this paper are a reflection of the Delphi process in which 43 panel members participated. RESULTS: The topics discussed are internal consistency (relevance for reflective and formative models, and distinction with unidimensionality), content validity (judging relevance and comprehensiveness), hypotheses testing as an aspect of construct validity (specificity of hypotheses), criterion validity (relevance for PROs), and responsiveness (concept and relation to validity, and (in) appropriate measures). CONCLUSIONS: We expect that this paper will contribute to a better understanding of the rationale behind the items, thereby enhancing the acceptance and use of the COSMIN checklist.},
number = {1},
pages = {22},
volume = {10},
year = {2010},
month = {Mar},
language = {ENG},
date-added = {2010-03-20 19:14:47 +0100},
date-modified = {2010-03-20 19:14:48 +0100},
doi = {10.1186/1471-2288-10-22},
pii = {1471-2288-10-22},
pmid = {20298572},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Mokkink-2010-BMC%20Med%20Res%20Methodol_The%20COSMIN%20checklist.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7875},
rating = {0}
}

@article{Fleiss:1981p2596,
author = {J L Fleiss},
journal = {Applied Psychological Measurement},
title = {Balanced Incomplete Block Designs for Inter-Rater Reliability Studies},
abstract = {Occasionally, an inter-rater reliability study must be designed so that each subject is rated by fewer than all the participating raters. If there is interest in comparing the raters' mean levels of rating, and if it is desired that each mean be estimated with the same precision, then a balanced incomplete block design for the reliability study is indicated.
Methods for executing the design and for analyzing the resulting data are presented, using data from an actual study for illustration.},
pages = {105--112},
volume = {5},
year = {1981},
date-added = {2010-01-12 22:41:35 +0100},
date-modified = {2010-01-12 22:42:50 +0100},
doi = {10.1177/014662168100500115},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Fleiss-1981-Applied%20Psychological%20Measurement_Balanced%20Incomplete.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2596},
rating = {0}
}

@article{Jang:1998p8023,
author = {K L Jang and R W Lam and J A Harris and P A Vernon and W J Livesley},
journal = {Psychiatry Res},
title = {Seasonal mood change and personality: an investigation of genetic co-morbidity},
abstract = {Clinical observations and empirical studies suggest that Seasonal Affective Disorder (SAD) is related to personality. The present study estimates the genetic and environmental correlations between the Global Seasonality Score (GSS) from the Seasonal Pattern Assessment Questionnaire and personality measures, assessed using the NEO Five Factor Inventory (NEO-FFI) and the Dimensional Assessment of Personality Pathology (DAPP) in a volunteer sample of 163 monozygotic (MZ) pairs (102 female and 61 male pairs) and 134 dizygotic (DZ) pairs (70 female, 38 male and 26 opposite-sex pairs). Large genetic correlations were found between the GSS and NEO-FFI Neuroticism (0.52: 95% CI = 0.36-0.71) and DAPP-BQ Cognitive Dysregulation (0.50: 95% CI = 0.30-0.71), Affective Lability (0.49: 95% CI = 0.29-0.77), Anxiousness (0.37: 95% CI = 0.18-0.55) and Stimulus Seeking (0.45: 95% CI = 0.25-0.64) scales. The genetic correlations with the remaining scales, such as Extraversion (0.06: 95% CI = -0.16-0.26), Compulsivity (-0.09: 95% CI = -0.31-0.12) and Submissiveness (0.15: 95% CI = -0.05-0.34) were uniformly small. All environmental correlations between the GSS and personality scales were < or = 0.19. These results provide evidence that the observed correlations between these seasonality and personality dimensions are attributable to common genetic factors and that environmental influences are domain specific.},
affiliation = {Department of Psychiatry, University of British Columbia, Vancouver, Canada. kjang@unixg.ubc.ca},
number = {1-2},
pages = {1--7},
volume = {78},
year = {1998},
month = {Mar},
language = {eng},
keywords = {Humans, Confidence Intervals, Likelihood Functions, Middle Aged, Personality, Adult, Neurotic Disorders, Disease Susceptibility, Aged, Aged: 80 and over, Diseases in Twins, Male, Factor Analysis: Statistical, Canada, Female, Seasonal Affective Disorder, Adolescent, Chi-Square Distribution},
date-added = {2010-03-20 19:37:52 +0100},
date-modified = {2010-07-29 19:45:28 +0200},
pii = {S0165-1781(98)00006-7},
pmid = {9579697},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Jang-1998-Psychiatry%20Res_Seasonal%20mood%20change.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8023},
rating = {5}
}

@article{Eggen:2001aa,
author = {T J H M Eggen},
title = {Overexposure and underexposure of items in computerized adaptive testing},
abstract = {Computerized adaptive tests (CATS) have shown to be considerably more efficient than paper-and-pencil tests. This gain is realized by offering each candidate the most informative item from an available item bank on the basis of the results of items that have already been administered. The item selection methods that are used to compose an optimum test for each individual do, however, have a number of drawbacks. Though a CAT generally presents each candidate with a different test, it often occurs that some items from the item bank are administered very frequently while others are never or hardly ever used. These two problems, i.e., overexposure and underexposure of items, can be eliminated by adding further restrictions to the item selection methods. However, this exposure control will affect the efficiency of the CAT. This paper presents a solution for both problems. The functioning of these methods will be illustrated with the results of simulation research that has been carried out to develop adaptive tests.},
year = {2001},
month = {Jan},
date-added = {2010-01-03 19:39:02 +0100},
date-modified = {2010-01-03 19:39:03 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Eggen-2001-_Overexposure%20and%20und.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1219},
rating = {0}
}

@article{Ferrando:2007p3349,
author = {P J Ferrando and U Lorenzo-Seva},
journal = {Applied Psychological Measurement},
title = {An Item Response Theory Model for Incorporating Response Time Data in Binary Personality Items},
abstract = {This article describes a general item response theory model for personality items that allows the information provided by the item response times to be used to estimate the individual trait levels. The submodel describing the item response times is a modification of Thissen's log-linear model and is based on the distance-difficulty hypothesis in personality measurement. First, the procedures for fitting the model and assessing the goodness of fit are described. Second, the gain in the precision of estimating the individual trait levels when the information provided by the response times is used is assessed. Finally, all the developments in this article are illustrated by means of an empirical example.},
number = {6},
pages = {525--543},
volume = {31},
year = {2007},
date-added = {2010-01-15 12:51:58 +0100},
date-modified = {2010-01-15 12:53:47 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Ferrando-2007-Applied%20Psychological%20Measurement_An%20Item%20Response%20The.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3349},
rating = {0}
}

@article{Ruitenburg:2006aa,
author = {Joost van Ruitenburg},
title = {ALGORITHMS FOR PARAMETER ESTIMATION IN THE RASCH MODEL},
year = {2006},
month = {Feb},
date-added = {2010-01-03 19:39:03 +0100},
date-modified = {2010-01-03 19:39:03 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Ruitenburg-2006-_ALGORITHMS%20FOR%20PARAM.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1203},
rating = {0}
}

@article{Delord:2006p5522,
author = {Sandrine Delord and Maria Giovanna Ducato and Delphine Pins and Fr{\'e}d{\'e}ric Devinck and Pierre Thomas and Muriel Boucart and Kenneth Knoblauch},
journal = {Vis Neurosci},
title = {Psychophysical assessment of magno- and parvocellular function in schizophrenia},
abstract = {Recently developed psychophysical techniques permit the biasing of the processing of the stimulus by early visual channels so that responses reflect characteristics of either magno- or parvocellular pathways (Pokorny {\&} Smith, 1997). We used such techniques to test psychophysically whether the global magnocellular dysfunction reported in schizophrenia also affects early processes. Seven schizophrenic patients and 19 normal controls participated. The task was a four-alternative forced-choice luminance discrimination, using a 2 x 2 configuration of four 1-deg squares. Target luminance threshold was determined in three conditions: the stimulus, including the target, was pulsed for 17 ms (pulse paradigm); the target was presented on a steady background of four squares (steady paradigm), or the target was presented alone (no background paradigm). We replicated previous results demonstrating magnocellular and parvocellular signatures in control participants. No evidence for an early magnocellular deficit could be detected as the thresholds of all schizophrenic observers were higher both in the steady paradigm (presumed magnocellular mediation) and in the pulse paradigm (presumed parvocellular mediation). Magnocellular dysfunction, if present in schizophrenia, must concern more integrated processes, possibly at levels at which parvocellular and magnocellular paths interact.},
affiliation = {Equipe de Psychologie Cognitive, Laboratoire de Psychologie (EA 3662), Universit{\'e} Bordeaux 2, Bordeaux, France. sandrine.delord@psycho.u-bordeaux2.fr},
number = {3-4},
pages = {645--50},
volume = {23},
year = {2006},
month = {Jan},
language = {eng},
keywords = {Light, Female, Pattern Recognition: Visual, Middle Aged, Motion Perception, Adult, Visual Pathways, Adolescent, Judgment, Schizophrenic Psychology, Discrimination (Psychology), Humans, Photic Stimulation, Schizophrenia, Contrast Sensitivity, Male, Space Perception, Psychophysics},
date-added = {2010-02-12 15:18:44 +0100},
date-modified = {2010-02-12 15:18:45 +0100},
doi = {10.1017/S0952523806233017},
pii = {S0952523806233017},
pmid = {16962008},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Delord-2006-Vis%20Neurosci_Psychophysical%20asses.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5522},
rating = {0}
}

@article{Koschack:2010p6518,
author = {Janka Koschack and Gabriella Marx and J{\"o}rg Schnakenberg and Michael M Kochen and Wolfgang Himmel},
journal = {Journal of Clinical Epidemiology},
title = {Comparison of two self-rating instruments for medication adherence assessment in hypertension revealed insufficient psychometric properties},
abstract = {OBJECTIVE: In cases of insufficiently controlled blood pressure, it is important for practitioners to distinguish between "nonadherence" and "nonresponse" to antihypertensive drug treatment. A reliable and valid adherence measurement based on the patient's self-report may be helpful in daily practice. STUDY DESIGN AND SETTING: In a primary care sample with 353 hypertensive patients, we applied two self-rating instruments to assess medication adherence (the "Hill-Bone Compliance to High Blood Pressure Therapy Scale" and Morisky's "Self-Reported Measure of Medication Adherence") and compared their psychometric properties. RESULTS: Both scales showed low acceptability and insufficiency to moderate internal consistency (Cronbach's alpha=0.25 and 0.73, respectively). Their convergent validity as indexed by kappa=0.39 could be judged as "fair" at best. Testing the power to predict blood pressure >140/90mmHg, both scales showed an accuracy of 57% and 62%, respectively. The positive likelihood, that is, the increase in likelihood of high blood pressure in cases of nonadherence was 1.00 and 1.32, respectively. CONCLUSION: The use of both scales cannot be recommended. They showed considerable floor effects, and their ability to identify medication adherence was inconsistent for nearly every third patient. The power of both scales to predict uncontrolled blood pressure was essentially a chance. The underlying conceptual framework of medication adherence therefore needs to be rethought.},
affiliation = {Department of General Practice, University of G{\"o}ttingen, Humboldtallee 38, 37073 G{\"o}ttingen, Germany.},
number = {3},
pages = {299--306},
volume = {63},
year = {2010},
month = {Mar},
language = {ENG},
date-added = {2010-02-23 08:42:12 +0100},
date-modified = {2010-02-23 08:42:16 +0100},
doi = {10.1016/j.jclinepi.2009.06.011},
pii = {S0895-4356(09)00206-6},
pmid = {19762213},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Koschack-2010-Journal%20of%20Clinical%20Epidemiology_Comparison%20of%20two%20se-1.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6518},
rating = {3}
}

@article{Auquier:2003p7244,
author = {P Auquier and M C Simeoni and C Sapin and G Reine and V Aghababian and J Cramer and C Lan{\c c}on},
journal = {Schizophr Res},
title = {Development and validation of a patient-based health-related quality of life questionnaire in schizophrenia: the S-QoL},
abstract = {We developed a self-administered instrument to assess health-related quality of life (HRQL) among people with schizophrenia. The S-QoL, based on Calman's approach to the subject's point of view, is a multidimensional instrument that is sensitive to change. The scale is a 41-item questionnaire with eight subscales (psychological well-being, self-esteem, family relationships, relationships with friends, resilience, physical well-being, autonomy and sentimental life) and a total score. In-depth interviews with patients determined the pertinent issues for item development. The validation study, performed with 207 patients, showed high internal consistency reliability, reproducibility and responsiveness. Construct validity was confirmed using established clinical and HRQL measures. S-QoL covers domains that differ from areas tapped in other measures, with greater responsiveness. The S-QoL is an efficient instrument for the measurement of the impact of schizophrenia on individuals' lives.},
affiliation = {Public Health Department, University Hospital Timone, Marseilles, France. lsp@medecine.univ-mrs.fr},
number = {1-2},
pages = {137--49},
volume = {63},
year = {2003},
month = {Sep},
language = {eng},
keywords = {Quality of Life, Questionnaires, Reproducibility of Results, Health Status, Female, Self Assessment (Psychology), Adult, Humans, Self Concept, Adolescent, Family Relations, Male, Schizophrenia, Sensitivity and Specificity, Cohort Studies, Aged, Middle Aged},
date-added = {2010-03-10 20:12:40 +0100},
date-modified = {2010-07-29 19:50:06 +0200},
pii = {S0920996402003559},
pmid = {12892868},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Auquier-2003-Schizophr%20Res_Development%20and%20vali.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7244},
rating = {0}
}

@article{Flint:2005p7029,
author = {Jonathan Flint and William Valdar and Sagiv Shifman and Richard Mott},
journal = {Nat Rev Genet},
title = {Strategies for mapping and cloning quantitative trait genes in rodents},
abstract = {Over the past 15 years, more than 2,000 quantitative trait loci (QTLs) have been identified in crosses between inbred strains of mice and rats, but less than 1% have been characterized at a molecular level. However, new resources, such as chromosome substitution strains and the proposed Collaborative Cross, together with new analytical tools, including probabilistic ancestral haplotype reconstruction in outbred mice, Yin-Yang crosses and in silico analysis of sequence variants in many inbred strains, could make QTL cloning tractable. We review the potential of these strategies to identify genes that underlie QTLs in rodents.},
affiliation = {Wellcome Trust Centre for Human Genetics, Oxford University, Roosevelt Drive, Oxford OX3 7BN, United Kingdom. jf@well.ox.ac.uk},
number = {4},
pages = {271--86},
volume = {6},
year = {2005},
month = {Apr},
language = {eng},
keywords = {Animals, Cloning: Molecular, Animals: Outbred Strains, Phenotype, Breeding, Mice, Quantitative Trait Loci, Mice: Inbred Strains, Crosses: Genetic, Genetic Variation, Rats, Gene Expression Profiling, Quantitative Trait: Heritable, Mutagenesis, Haplotypes, Chromosome Mapping, Animals: Genetically Modified},
date-added = {2010-03-06 20:05:59 +0100},
date-modified = {2010-03-06 20:05:59 +0100},
doi = {10.1038/nrg1576},
pii = {nrg1576},
pmid = {15803197},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Flint-2005-Nat%20Rev%20Genet_Strategies%20for%20mappi.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7029},
rating = {0}
}

@article{EspositoVinzi:2010p13498,
author = {V Esposito Vinzi and G Russolillo and L Trinchera},
journal = {42emes Journ{\'e}es de Statistique},
title = {An integrated pls regression-based approach for multidimensional blocks in PLS path modeling},
abstract = {PLS Path Modeling (PLS-PM) is classically regarded as a component-based ap- proach to Structural Equation Models and has been more recently revisited as a general frame- work for multiple table analysis. Here we propose two new modes for estimating outer weights in PLS-PM: the PLScore Mode and the PLScow Mode. Both modes involve integrating a PLS Regression as an estimation technique within the outer estimation phase of PLS-PM. However, in PLScore Mode a PLS Regression is run under the classical PLS-PM constraints of unitary variance for the latent variable scores, while in PLScow Mode the outer weights are constrained to have a unitary norm thus importing the classical normalization constraints of PLS Regres- sion. Moreover, we show how the newly proposed modes are linked to the standard Mode A and Mode B outer estimates in PLS-PM as well as to the New Mode A recently proposed in a criterion-based approach by Tenenhaus {\&} Tenenhaus (2009).},
year = {2010},
date-added = {2010-07-07 20:35:50 +0200},
date-modified = {2010-07-07 20:38:39 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Esposito%20Vinzi-2010-42emes%20Journe%CC%81es%20de%20Statistique_An%20integrated%20pls%20re.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13498},
rating = {0}
}

@article{VaivreDouret:2007p12933,
author = {L Vaivre-Douret},
journal = {Arch Pediatr},
title = {[Non-verbal learning disabilities: developmental dyspraxia]},
abstract = {Dyspraxia is a non verbal neuropsychological dysfunction still unrecognized but which can generate scholar learning and behavioural disabilities. We propose, at first time, to do a state of art with the various terminologies and typologies which lead to put together clumsiness, motor coordination disorder and the different types of dyspraxia. Then, we will bring an integrative model and clinical data in children with developmental dyspraxia, allowing a better pointing, to make a diagnostic and then we suggest some advices for remediations.},
affiliation = {Child Psychiatry of Necker Hospital and Pediatric of Port Royal-Cochin hospital, APHP, University Paris 10, rue de S{\`e}vres, 75015 Paris, France. laurence.vavre@nck.ap-hop-paris.fr},
number = {11},
pages = {1341--9},
volume = {14},
year = {2007},
month = {Nov},
language = {fre},
keywords = {Child: Preschool, Neuropsychological Tests, Apraxias, Educational Status, Humans, Comorbidity},
date-added = {2010-06-25 21:45:56 +0200},
date-modified = {2010-06-25 21:45:56 +0200},
doi = {10.1016/j.arcped.2007.06.034},
pii = {S0929-693X(07)00427-7},
pmid = {17964127},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12933},
rating = {0}
}

@article{Nguyen:2008p7286,
author = {Huong Q Nguyen and DorAnne Donesky-Cuenco and Virginia Carrieri-Kohlman},
journal = {Int J Nurs Stud},
title = {Associations between symptoms, functioning, and perceptions of mastery with global self-rated health in patients with COPD: a cross-sectional study},
abstract = {BACKGROUND: Self-rated health has been shown to be a significant predictor of mortality. However, there is limited knowledge on what factors contribute to the global perception of self-rated health in patients with chronic obstructive pulmonary disease (COPD). OBJECTIVE: To describe the associations between physical and psychological symptoms, physical and mental health functioning, and perceptions of mastery with concurrent and longitudinal global self-rated health (GSRH) in patients with COPD and to determine if gender modifies these relationships. DESIGN: Cross-sectional analysis of data from a longitudinal clinical trial. SETTING: University medical center in the United States. PARTICIPANTS: 115 patients with moderate to severe COPD. METHODS: GSRH was measured using one question from the Medical Outcomes Study, SF-36 which states, "In general, would you say your health is: excellent, very good, good, fair, or poor". Physical and psychological symptoms were measured with the Shortness of Breath Questionnaire, Chronic Respiratory Questionnaire (CRQ), and Center for Epidemiologic Studies Depression Scale (CESD); the SF-36 was used to measure physical and mental health functioning; mastery was measured by a sub-scale of the CRQ. The BODE index, a multidimensional disease severity grading system, was also included. Stepwise logistic regression analyses were performed. RESULTS: In cross-sectional analyses, only disease severity as measured by the BODE index was associated with GSRH [odds ratio, 1.52; 95% confidence interval, CI (1.08, 2.15)]. Stratified analyses by gender showed that the association between the BODE index and the GSRH held up for men, but not for women. Higher perception of symptom control was associated with positive health ratings in women. Subjects with less fatigue at baseline had a lower risk of reporting poor health 12 months later [OR 0.84; 95% CI (0.72, 0.98)]. CONCLUSIONS: For patients with COPD, ratings of global health were mostly influenced by measures that reflect their physical state, e.g. disease severity and fatigue. While additional work is needed to better understand gender differences in factors that contribute to GSRH, therapeutic nursing interventions might place greater focus on symptom management if the goal is to improve patients' perceptions of their global health.},
affiliation = {University of Washington, Seattle, Washington, 1959 NE Pacific St., HSB T602A, Seattle, WA 98195, USA. HQN@u.washington.edu},
number = {9},
pages = {1355--65},
volume = {45},
year = {2008},
month = {Sep},
language = {eng},
keywords = {Cross-Sectional Studies, Humans, Aged, Female, Middle Aged, Pulmonary Disease: Chronic Obstructive, Male, Self Assessment (Psychology)},
date-added = {2010-03-10 20:17:15 +0100},
date-modified = {2010-03-10 20:17:15 +0100},
doi = {10.1016/j.ijnurstu.2007.09.012},
pii = {S0020-7489(07)00243-X},
pmid = {17983617},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Nguyen-2008-Int%20J%20Nurs%20Stud_Associations%20between.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7286},
rating = {0}
}

@article{Goeman:2008p2291,
author = {J J Goeman and A Solari},
title = {The sequential rejection principle of familywise error control},
year = {2008},
date-added = {2010-01-10 12:04:45 +0100},
date-modified = {2010-01-10 12:05:14 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Goeman-2008-_The%20sequential%20rejec.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2291},
rating = {0}
}

@article{Byrne:1989p13785,
author = {B M Byrne and R J Shavelson and B Muth{\'e}n},
journal = {Psychological Bulletin},
title = {Testing for the Equivalence of Factor Covariance and Mean Structures: The Issue of Partial Measurement Invariance},
abstract = {Addresses issues related to partial measurement invariance using a tutorial approach based on the LISREL confirmatory factor analytic model. Specifically, we demonstrate procedures for (a) using "sensitivity analyses" to establish stable and substantively well-fitting baseline models, (b) determin- ing partially invariant measurement parameters, and (c) testing for the invariance of factor covari- ance and mean structures, given partial measurement invariance. Wealso show, explicitly, the trans- formation of parameters from an all-^fto an all-y model specification, for purposes of testing mean structures. These procedures are illustrated with multidimensional self-concept data from low (« = 248) and high (n = 582) academically tracked high school adolescents.},
number = {3},
pages = {456--466},
volume = {105},
year = {1989},
date-added = {2010-07-29 12:16:06 +0200},
date-modified = {2010-07-29 12:17:07 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Byrne-1989-Psychological%20Bulletin_Testing%20for%20the%20Equi.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13785},
rating = {0}
}

@article{Hill:2006p13990,
author = {Elisabeth L Hill and Sylvie Berthoz},
journal = {J Autism Dev Disord},
title = {Response to "Letter to the Editor: The overlap between alexithymia and Asperger's syndrome", Fitzgerald and Bellgrove, Journal of Autism and Developmental Disorders, 36(4)},
number = {8},
pages = {1143--5},
volume = {36},
year = {2006},
month = {Nov},
language = {eng},
keywords = {Positron-Emission Tomography, Asperger Syndrome, Prevalence, Gyrus Cinguli, Magnetic Resonance Imaging, Humans, Affective Symptoms},
date-added = {2010-08-04 09:21:05 +0200},
date-modified = {2010-08-22 20:58:33 +0200},
doi = {10.1007/s10803-006-0287-7},
pmid = {17080269},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Hill-2006-J%20Autism%20Dev%20Disord_Response%20to%20%22Letter.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13990},
read = {Yes},
rating = {4}
}

@article{Schunemann:2006p5956,
author = {Holger J Sch{\"u}nemann and Elie A Akl and Gordon H Guyatt},
journal = {Health Qual Life Outcomes},
title = {Interpreting the results of patient reported outcome measures in clinical trials: the clinician's perspective},
abstract = {This article deals with the problem of interpreting health-related quality of life (HRQL) outcomes in clinical trials. First, we will briefly describe how dichotomization and item response theory can facilitate interpretation. Based on examples from the medical literature for the interpretation of HRQL scores we will show that dichotomies may help clinicians understand information provided by HRQL instruments in RCTs. They can choose thresholds to calculate proportions of patients benefiting based on absolute scores or change scores. For example, clinicians interpreting clinical trial results could consider the difference in the proportion of patients who achieve a mean score of 50 before and after an intervention on a scale from 1 to 100. For the change score approach, they could consider the proportion of patients who have changed by a score of 5 or more. Finally, they can calculate the proportion of patients benefiting and transform these numbers into a number needed to treat or natural frequencies. Second, we will describe in more detail an approach to the interpretation of HRQL scores based on the minimal important difference (MID) and proportions. The MID is the smallest difference in score in the outcome of interest that informed patients or informed proxies perceive as important, either beneficial or harmful, and that would lead the patient or clinician to consider a change in the management. Any change in management will depend on the downsides, including cost and inconvenience, associated with the intervention. Investigators can help with the interpretation of HRQL scores by determining the MID of an HRQL instrument and provide mean differences in relation to the MID. For instance, for an MID of 0.5 on a seven point scale investigators could provide the mean change on the instrument as well as the proportion of patients with scores greater than the MID. Thus, there are several steps investigators can take to facilitate this process to help bringing HRQL information closer to the bedside.},
affiliation = {Division of Clinical Research Development and INFORMAtion Translation, Department of Epidemiology, Istituto Regina Elena/Italian National Cancer Institute Rome, Rome, Italy. schuneh@mcmaster.ca},
pages = {62},
volume = {4},
year = {2006},
month = {Jan},
language = {eng},
keywords = {Outcome Assessment (Health Care), Humans, Decision Support Techniques, Data Interpretation: Statistical, Quality of Life, Regression Analysis, Sickness Impact Profile, Risk Assessment, Randomized Controlled Trials as Topic, Judgment},
date-added = {2010-02-18 23:24:37 +0100},
date-modified = {2010-02-18 23:24:38 +0100},
doi = {10.1186/1477-7525-4-62},
pii = {1477-7525-4-62},
pmid = {16973000},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Sch%C3%BCnemann-2006-Health%20and%20Quality%20of%20Life%20Outcomes_Interpreting%20the%20res.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5956},
rating = {0}
}

@inproceedings{Laham:1997,
author = {Darrell Laham},
journal = {Proceedings},
title = {Latent semantic analysis approaches to categorization},
pages = {979},
year = {1997},
date-added = {2010-01-10 11:33:25 +0100},
date-modified = {2010-01-10 11:33:25 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Laham-1997-Proceedings_Latent%20semantic%20anal.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1910},
rating = {0}
}

@article{Revicki:2007p8807,
author = {Dennis A Revicki and Regulatory Issues and Patient-Reported Outcomes Task Force for the International Society for Quality of Life Research},
journal = {Lancet},
title = {FDA draft guidance and health-outcomes research},
affiliation = {Center for Health Outcomes Research, United Biosource Corporation, Bethesda, MD 20814, USA. Dennis.Revicki@Unitedbiosource.com},
number = {9561},
pages = {540--2},
volume = {369},
year = {2007},
month = {Feb},
language = {eng},
keywords = {Quality of Life, Humans, Health Planning Guidelines, Drug Approval, Outcome and Process Assessment (Health Care), United States Food and Drug Administration, United States, Clinical Trials as Topic},
date-added = {2010-03-22 12:09:03 +0100},
date-modified = {2010-07-29 19:38:44 +0200},
doi = {10.1016/S0140-6736(07)60250-5},
pii = {S0140-6736(07)60250-5},
pmid = {17307086},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Revicki-2007-Lancet_FDA%20draft%20guidance%20a.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8807},
read = {Yes},
rating = {0}
}

@article{Chow:2002p11428,
author = {S L Chow},
title = {Methods in psychological research},
abstract = {The impetus of psychological research is the inability of psychologists to accommodate new phenomena or problems with their existing knowledge. Conducting research is a formal and systematic exercise for the following reasons. First, conceptual skills are deployed to propose a theory for the to-be-explained phenomenon. Second, deductive logic is used to derive the research hypotheses from the theory. This is possible only if the theory is sufficiently specific. Third, researchers collect data systematically according to a plan or design. Fourth, the inductive rule that underlies the experimental design makes it possible to exclude some potential interpretations of the data. Fifth, appropriate statistical procedures are used to tabulate and analyze the data. Lastly, deductive logic is used to draw the theoretical conclusion. In short, the success of the research process depends on a confluence of conceptual, meta-theoretical, methodological, and statistical skills.
For various reasons, psychologists may emphasize some of the six aforementioned reasons at the expense of the other issues. Consequently, psychologists use a wide array of research methods. This sometimes gives the impression of fundamental methodological differences among psychologists. While this is not necessarily undesirable, it is hoped that the discussion of the meta-theoretical and philosophical issues serves to set the methodological disagreements among psychologists in the proper context. For example, before considering whether empirical research should be driven atheoretically by data or be guided conceptually by theory, it may be helpful to examine first whether or not there is ``pure'' observation. At the same time, realizing that all observations are theory-dependent, should we conclude that no objectivity is possible, particularly when psychologists appeal to the incorporeal entity, the mind? Before attempting to answer the question as to whether or not the mind can be reduced to the brain, we may find it necessary to see how cognitive psychologists study unobservable hypothetical structures or processes like perception, memory, intelligence, motives, and the like.
Explanations are qualitative in the sense that psychological phenomena are explained in terms of hypothetical mechanisms to which theoretical properties are attributed. Are psychologists being inconsistent when they insist on using statistics or psychometric tests? How is it possible to use
1
quantitative data as evidential support for qualitative theories? How do psychologists generalize from their data that are collected in an artificial setting to real-life phenomena? What is the rationale of experimentation in psychological research? How can psychologists assess their research?},
year = {2002},
date-added = {2010-05-01 17:09:48 +0200},
date-modified = {2010-05-01 17:10:29 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Chow-2002-_Methods%20in%20psycholog.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11428},
rating = {0}
}

@article{Norman:2009p11802,
author = {Richard Norman and Paula Cronin and Rosalie Viney and Madeleine King and Deborah Street and Julie Ratcliffe},
journal = {Value Health},
title = {International Comparisons in Valuing EQ-5D Health States: A Review and Analysis},
abstract = {ABSTRACT Objective: To identify the key methodological issues in the construction of population-level EuroQol 5-dimensions (EQ-5D)/time trade-off (TTO) preference elicitation studies. Method: This study involved three components. The first was to identify existing population-level EQ-5D TTO studies. The second was to illustrate and discuss the key areas of divergence between studies, including the international comparison of tariffs. The third was to portray the relative merits of each of the approaches and to compare the results of studies across countries. Results: While most articles report use of the protocol developed in the original UK study, we identified three key areas of divergence in the construction and analysis of surveys. These are the number of health states valued to determine the algorithm for estimating all health states, the approach to valuing states worse than immediate death, and the choice of algorithm. The evidence on international comparisons suggests differences between countries although it is difficult to disentangle differences in cultural attitudes with random error and differences as a result of methodological divergence. Conclusions: Differences in methods may obscure true differences in values between countries. Nevertheless, population-specific valuation sets for countries engaging in economic evaluation would better reflect cultural differences and are therefore more likely to accurately represent societal attitudes.},
affiliation = {Centre for Health Economics Research and Evaluation (CHERE), Faculty of Business, University of Technology, Sydney, NSW, Australia.},
pages = {},
year = {2009},
month = {Aug},
language = {ENG},
date-added = {2010-05-23 10:41:18 +0200},
date-modified = {2010-05-23 10:41:18 +0200},
doi = {10.1111/j.1524-4733.2009.00581.x},
pii = {VHE581},
pmid = {19695009},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Norman-2009-Value%20Health_International%20Compar.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11802},
rating = {0}
}

@article{Scheetz:2009p1537,
author = {Linda J Scheetz and Juan Zhang and John Kolassa},
journal = {Artif Intell Med},
title = {Classification tree modeling to identify severe and moderate vehicular injuries in young and middle-aged adults},
abstract = {OBJECTIVES: Motor vehicle crashes are a leading cause of mortality and morbidity worldwide. Even though trauma centers provide the gold standard of care for motor vehicle crash patients with life- or limb-threatening injuries, many whose lives might be saved by trauma center care are treated instead at non-trauma center hospitals. Triage algorithms, designed to identify patients with life- or limb-threatening injuries who should be transported to a trauma center, lack appropriate sensitivity to many of these injuries. The challenge to the trauma community is differentiating patients with life- or limb-threatening injuries from those with less severe injuries at the crash scene so that the patients can be transported to the most appropriate level of care. The purpose of this study was to use crash scene data available to emergency responders to classify adults with moderate and severe injuries. These classifiers might be useful to guide triage decision making. METHODS AND MATERIAL: Records of 74,626 adults, age 18-64 years, from the National Automotive Sampling System Crashworthiness Data Systems database were analyzed using classification and regression trees (CART) analysis. Both CART models (moderate injury and severe injury) included 13 predictor variables. The response variables were the targeted injury severity score cut points for moderate and severe injury. Two final classification trees were developed: one that classified occupants based on moderate injury and the other on severe injury. Misclassification costs were manipulated to achieve the best model fit for each tree. RESULTS: The moderate injury classification tree had three splitters: police-estimated injury severity, restraint use, and number of persons injured. The severe injury classification tree had four splitters: police-estimated injury severity, manner of collision, number of persons injured in the crash, and age. Sensitivity and specificity of the classification trees were 93.70%, 77.53% (moderate) and 99.18%, 73.96% (severe), respectively. CONCLUSIONS: CART analysis can be used to classify injury severity using crash scene information that is available to emergency responders. This procedure offers an opportunity to examine alternative methods of identifying injury severity that might assist emergency responders to differentiate more accurately persons who should receive trauma center care from those who can be treated safely at a non-trauma center hospital.},
affiliation = {New York University College of Nursing, 246 Greene Street, New York, NY 10003, USA. Ljs13@nyu.edu},
number = {1},
pages = {1--10},
volume = {45},
year = {2009},
month = {Jan},
language = {eng},
keywords = {Databases: Factual, Wounds and Injuries, Adolescent, Models: Theoretical, Humans, Algorithms, Middle Aged, Adult, Accidents: Traffic, Severity of Illness Index},
date-added = {2010-01-07 16:21:24 +0100},
date-modified = {2010-07-29 19:17:26 +0200},
doi = {10.1016/j.artmed.2008.11.002},
pii = {S0933-3657(08)00174-7},
pmid = {19091533},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Scheetz-2009-Artif%20Intell%20Med_Classification%20tree.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1537},
rating = {0}
}

@article{Lagergren:2007p7473,
author = {Pernilla Lagergren and Peter Fayers and Thierry Conroy and Hubert J Stein and Orhan Sezer and Richard Hardwick and Eva Hammerlid and Andrew Bottomley and Eric Van Cutsem and Jane M Blazeby and European Organisation for Research Treatment of Cancer Gastrointestinal and Quality of Life Groups},
journal = {Eur J Cancer},
title = {Clinical and psychometric validation of a questionnaire module, the EORTC QLQ-OG25, to assess health-related quality of life in patients with cancer of the oesophagus, the oesophago-gastric junction and the stomach},
abstract = {AIM: To combine and test the EORTC questionnaires for assessing quality of life (HRQL) for oesophageal (QLQ-OES18) and stomach cancer (QLQ-STO22), into a single questionnaire for tumours of the oesophagus, oesophago-gastric junction or stomach. METHODS: The QLQ-OES18, QLQ-STO22 and seven modified items were administered to 300 patients with oesophageal (n=148), junctional (n=66), or gastric cancer (n=86). Semi-structured interviews assessed item and scale preference and multi-trait scaling analyses confirmed the scale structure of the new module (QLQ-OG25). This was further tested for validity. RESULTS: The QLQ-OG25 has six scales, dysphagia, eating restrictions, reflux, odynophagia, pain and anxiety. Scales have good reliability (alpha range 0.67-0.87) and they distinguish between tumour sites and disease stage. Scales do not correlate highly with scores from the core questionnaire, thus indicating that the module was addressing separate HRQL aspects. CONCLUSION: The QLQ-OG25 is recommended to supplement the EORTC QLQ-C30 when assessing HRQL in patients with oesophageal, junctional or gastric cancer.},
affiliation = {Department of Social Medicine at South Bristol, University of Bristol, Bristol, United Kingdom.},
number = {14},
pages = {2066--73},
volume = {43},
year = {2007},
month = {Sep},
language = {eng},
keywords = {Adult, Quality of Life, Stomach Neoplasms, Esophagogastric Junction, Male, Aged: 80 and over, Eating Disorders, Prospective Studies, Anxiety, Health Status, Gastroesophageal Reflux, Sensitivity and Specificity, Pain, Female, Questionnaires, Esophageal Neoplasms, Humans, Middle Aged, Psychometrics, Aged},
date-added = {2010-03-10 20:45:02 +0100},
date-modified = {2010-03-10 20:45:02 +0100},
doi = {10.1016/j.ejca.2007.07.005},
pii = {S0959-8049(07)00528-X},
pmid = {17702567},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7473},
rating = {0}
}

@article{Narr:2009p8838,
author = {Katherine L Narr and Philip R Szeszko and Todd Lencz and Roger P Woods and Liberty S Hamilton and Owen Phillips and Delbert Robinson and Katherine E Burdick and Pamela DeRosse and Raju Kucherlapati and Paul M Thompson and Arthur W Toga and Anil K Malhotra and Robert M Bilder},
journal = {Hum Brain Mapp},
title = {DTNBP1 is associated with imaging phenotypes in schizophrenia},
abstract = {Dystrobrevin binding protein 1 (DTNBP1) has been identified as putative schizophrenia susceptibility gene, but it remains unknown whether polymorphisms relate to altered cerebral structure. We examined relationships between a previously implicated DTNBP1 risk variant [P1578] and global and segmented brain tissue volumes and regional cortical thickness in schizophrenia (n = 62; 24 risk carriers) and healthy subjects (n = 42; 11 risk carriers), across ethnic groups and within Caucasians. Schizophrenia patients showed similar brain volumes, but significantly reduced brain-size adjusted gray matter and CSF volumes and cortical thinning in a widespread neocortical distribution compared to controls. DTNBP1 risk was found associated with reduced brain volume, but not with tissue sub-compartments. Cortical thickness, which was weakly associated with brain size, showed regional variations in association with genetic risk, although effects were dominated by highly significant genotype by diagnosis interactions over broad areas of cortex. Risk status was found associated with regional cortical thinning in patients, particularly in temporal networks, but with thickness increases in controls. DTNBP1 effects for brain volume and cortical thickness appear driven by different neurobiological processes. Smaller brain volumes observed in risk carriers may relate to previously reported DTNBP1/cognitive function relationships irrespective of diagnosis. Regional cortical thinning in patient, but not in control risk carriers, may suggest that DTNBP1 interacts with other schizophrenia-related risk factors to affect laminar thickness. Alternatively, DTNBP1 may influence neural processes for which individuals with thicker cortex are less vulnerable. Although DTNBP1 relates to cortical thinning in schizophrenia, morphological changes in the disorder are influenced by additional genetic and/or environmental factors.},
affiliation = {Laboratory of Neuro Imaging and Ahmanson-Lovelace Brain Mapping Center, Department of Neurology, Geffen School of Medicine at UCLA, Los Angeles, California 90095, USA. narr@loni.ucla.edu},
number = {11},
pages = {3783--94},
volume = {30},
year = {2009},
month = {Nov},
language = {eng},
keywords = {Female, Phenotype, Models: Neurological, Young Adult, Linear Models, Adult, Male, Schizophrenia, Carrier Proteins, Magnetic Resonance Imaging, Cerebral Cortex, Risk Factors, Brain Mapping, Imaging: Three-Dimensional, Psychiatric Status Rating Scales, Humans, Genetic Predisposition to Disease},
date-added = {2010-03-22 12:34:40 +0100},
date-modified = {2010-03-22 12:34:41 +0100},
doi = {10.1002/hbm.20806},
pmid = {19449336},
URL = {http://www3.interscience.wiley.com/journal/122385648/abstract},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Narr-2009-Hum%20Brain%20Mapp_DTNBP1%20is%20associated.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8838},
rating = {0}
}

@article{Krishnamurthy:2009p12334,
author = {V Krishnamurthy and A d'Aspremont},
title = {A Pathwise Algorithm for Covariance Selection},
abstract = {Covariance selection seeks to estimate a covariance matrix by maximum likelihood while restricting the number of nonzero inverse covariance matrix coefficients. A single penalty pa- rameter usually controls the tradeoff between log likelihood and sparsity in the inverse matrix. We describe an efficient algorithm for computing a full regularization path of solutions to this problem.},
year = {2009},
date-added = {2010-06-12 10:13:20 +0200},
date-modified = {2010-06-12 10:13:55 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Krishnamurthy-2009-_A%20Pathwise%20Algorithm.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12334},
rating = {0}
}

@article{Hoh2000,
author = {J Hoh and J Ott},
journal = {Proceedings of the National Academy of Sciences},
title = {Scan statistics to scan markers for susceptibility genes},
pages = {9615--9617},
volume = {97},
year = {2000},
date-added = {2010-01-12 14:26:52 +0100},
date-modified = {2010-01-12 14:26:52 +0100},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2556},
rating = {0}
}

@article{Hansenne:1999p12223,
author = {M Hansenne and J Reggers and E Pinto and K Kjiri and A Ajamier and Marc Ansseau},
journal = {J Psychiatr Res},
title = {Temperament and character inventory (TCI) and depression},
abstract = {Although several studies have assessed the relationships between the temperament dimensions of the Cloninger model of personality and depression, little is known about the role played by the character dimensions proposed by the seven-factor model of Cloninger in depression. In this study, the relationships between the Temperament and Character Inventory (TCI) and depression were examined in a sample of 40 major depressive patients and 40 healthy controls. Depressed patients exhibit higher harm avoidance and self-transcendence scores as well as lower self-directedness and cooperativeness scores as compared to healthy controls. However, the three other dimensions do not differ between depressive patients and controls. Among the depressive group, harm avoidance, self-directedness and cooperativeness dimensions are related to the severity of depression as assessed by the Hamilton scale. This study confirms the state dependence of the harm avoidance dimension and suggests a relationship between the character dimensions of the Cloninger model and depression.},
affiliation = {Psychiatric Unit, Centre Hospitalier Universitaire du Sart Tilnan, Li{\`e}ge, Belgium. michel.hansenne@ulg.ac.be},
number = {1},
pages = {31--6},
volume = {33},
year = {1999},
month = {Jan},
language = {eng},
keywords = {Depressive Disorder, Humans, Male, Cooperative Behavior, Character, Exploratory Behavior, Psychiatric Status Rating Scales, Questionnaires, Adult, Middle Aged, Personality Inventory, Temperament, Female},
date-added = {2010-05-30 10:48:05 +0200},
date-modified = {2010-07-29 20:42:00 +0200},
pii = {S0022-3956(98)00036-3},
pmid = {10094237},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Hansenne-1999-J%20Psychiatr%20Res_Temperament%20and%20char.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12223},
rating = {0}
}

@article{Mariano:2005p12800,
author = {L T Mariano and M Orlando and B Ghosh-Dastidar},
journal = {ASA Section on Bayesian Statistical Science},
title = {A Bayesian IRT Model for Comparative Item Performance Under Dual Administration Modes},
abstract = {Ordinal scale response items are often used in quantifying a latent trait. The mode in which these items are administered may effect an item's characteristics, such as the item's location on the latent scale and the efficiency of the item in discriminating between different values of the latent trait. We present the Bayesian Differential Mode Effects Model (BDMEM), a Bayesian Item Response Theory (IRT) model for the detection and quantification of mode of administration effects at both the item and form level. To illustrate the BDMEM, we present an example of a mental health survey administered both by telephone and self-administered questionnaire. The BDMEM is compared to the popular approach of IRT differ- ential item functioning (DIF) evaluation, and its advantages over DIF are highlighted.},
year = {2005},
date-added = {2010-06-18 21:23:47 +0200},
date-modified = {2010-06-18 21:24:38 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Mariano-2005-ASA%20Section%20on%20Bayesian%20Statistical%20Science_A%20Bayesian%20IRT%20Model.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12800},
rating = {0}
}

@article{Briggs:2007p4095,
author = {D C Briggs},
title = {Using Explanatory Item Response Models to Analyze Group Differences in Science Achievement},
abstract = {This paper illustrates the use of an explanatory item response modeling (EIRM) approach in the context of measuring group differences in science achievement. The distinction between item response models and EIRMs, recently elaborated by De Boeck {\&} Wilson (2004), is presented within the statistical framework of generalized linear mixed models. It is shown that the EIRM approach provides a powerful framework for both a psychometric and statistical analysis of group differences. This is contrasted with the more typical two-step approach, in which psychometric analysis (i.e., measurement) and statistical analysis (i.e., explanation) occur independently. The two approaches are each used to describe and explain racial/ethnic gaps on a standardized science test. It is shown that the EIRM approach results in estimated racial/ethnic achievement gaps that are larger than those found in the two-step approach. In addition, when science achievement is examined by subdomains, the magnitude of racial/ethnic gap estimates under the EIRM approach are more variable and sensitive to the inclusion of contextual variables. These differences stem from the fact that the EIRM approach allows for disattenuated estimates of group level parameters, while the two-step approach depends upon estimates of science achievement that are shrunken as a function of measurement error.},
year = {2007},
date-added = {2010-01-19 23:27:00 +0100},
date-modified = {2010-01-19 23:27:32 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Briggs-2007-_Using%20Explanatory%20It.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4095},
rating = {0}
}

@article{Smits:2003a,
author = {D J M Smits and Paul De Boeck},
journal = {Multivariate Behavioral Research},
title = {A Componential IRT Model for Guilt},
number = {2},
pages = {161--188},
volume = {38},
year = {2003},
date-added = {2010-01-10 11:33:18 +0100},
date-modified = {2010-07-29 20:46:12 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Smits-2003-Multivariate%20Behavioral%20Research_A%20Componential%20IRT%20M.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2032},
rating = {0}
}

@article{DiazUriarte:2006p2575,
author = {Ram{\'o}n D{\'\i}az-Uriarte and Sara Alvarez de Andr{\'e}s},
journal = {BMC Bioinformatics},
title = {Gene selection and classification of microarray data using random forest},
abstract = {BACKGROUND: Selection of relevant genes for sample classification is a common task in most gene expression studies, where researchers try to identify the smallest possible set of genes that can still achieve good predictive performance (for instance, for future use with diagnostic purposes in clinical practice). Many gene selection approaches use univariate (gene-by-gene) rankings of gene relevance and arbitrary thresholds to select the number of genes, can only be applied to two-class problems, and use gene selection ranking criteria unrelated to the classification algorithm. In contrast, random forest is a classification algorithm well suited for microarray data: it shows excellent performance even when most predictive variables are noise, can be used when the number of variables is much larger than the number of observations and in problems involving more than two classes, and returns measures of variable importance. Thus, it is important to understand the performance of random forest with microarray data and its possible use for gene selection. RESULTS: We investigate the use of random forest for classification of microarray data (including multi-class problems) and propose a new method of gene selection in classification problems based on random forest. Using simulated and nine microarray data sets we show that random forest has comparable performance to other classification methods, including DLDA, KNN, and SVM, and that the new gene selection procedure yields very small sets of genes (often smaller than alternative methods) while preserving predictive accuracy. CONCLUSION: Because of its performance and features, random forest and gene selection using random forest should probably become part of the "standard tool-box" of methods for class prediction and gene selection with microarray data.},
affiliation = {Bioinformatics Unit, Biotechnology Programme, Spanish National Cancer Centre (CNIO), Melchor Fernandez Almagro 3, Madrid, 28029, Spain. rdiaz@ligarto.org},
pages = {3},
volume = {7},
year = {2006},
month = {Jan},
language = {eng},
keywords = {Computer Simulation, Gene Expression Profiling, Algorithms, Oligonucleotide Array Sequence Analysis, Models: Statistical, Models: Genetic, Cluster Analysis, Pattern Recognition: Automated},
date-added = {2010-01-12 22:23:40 +0100},
date-modified = {2010-07-29 20:21:27 +0200},
doi = {10.1186/1471-2105-7-3},
pii = {1471-2105-7-3},
pmid = {16398926},
local-url = {file://localhost/Users/chl/Dropbox/Papers/D%C3%ADaz-Uriarte-2006-BMC%20Bioinformatics_Gene%20selection%20and%20c.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2575},
rating = {0}
}

@article{Holman:2005p2768,
author = {R Holman and C A W Glas},
journal = {British Journal of Mathematical {\&} Statistical Psychology},
title = {Modelling non-ignorable missing-data mechanisms with item response theory models},
abstract = {A model-based procedure for assessing the extent to which missing data can be ignored and handling non-ignorable missing data is presented. The procedure is based on item response theory modelling. As an example, the approach is worked out in detail in conjunction with item response data modelled using the partial credit and generalized partial credit models. Simulation studies are carried out to assess the extent to which the bias caused by ignoring the missing-data mechanism can be reduced. Finally, the feasibility of the procedure is demonstrated using data from a study to calibrate a medical disability scale.},
affiliation = {Department of Clinical Epidemiology and Biostatistics, Amsterdam Medical Center, The Netherlands},
pages = {1--17},
volume = {58},
year = {2005},
date-added = {2010-01-13 14:24:48 +0100},
date-modified = {2010-07-29 19:22:12 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Holman-2005-British%20Journal%20of%20Mathematical%20&%20Statistical%20Psychology_Modelling%20non-ignora.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2768},
rating = {0}
}

@article{Dolan:1998p11421,
author = {C V Dolan and H J van der Maas},
journal = {Psychometrika},
title = {Fitting multivariate normal finite mixtures subject to structural equation modeling},
abstract = {This paper is about fitting multivariate normal mixture distributions subject to structural equation modeling. The general model comprises commonfactor and structural regression models. The introduction of covariance and meanstructure models reduces the numberof parameters to be estimated in fitting the mixture and enables one to investigate a variety of substantive hypotheses concerning the differences between the components in the mixture. Within the general model, individual parameters can be subjected to equality, nonlinear and simple bounds constraints. Confidenceintervals are based on the inverse of the Hessian and on the likelihood profile. Several illustrations	are given and results	of a simulation study concerning the confidence intervals	are reported.},
number = {3},
pages = {227--253},
volume = {63},
year = {1998},
date-added = {2010-05-01 16:47:04 +0200},
date-modified = {2010-05-01 16:50:53 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Dolan-1998-Psychometrika_Fitting%20multivariate.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11421},
rating = {0}
}

@article{Johnson:2002p11465,
author = {Wendy Johnson and Robert F Krueger and Thomas J Bouchard and Matt McGue},
journal = {Twin Res},
title = {The personalities of twins: just ordinary folks},
abstract = {Twin studies have demonstrated that personality traits show moderate genetic influence. The conclusions drawn from twin studies rely on the assumptions that twins are representative of the population at large and that monozygotic and dizygotic twins are comparable in every way that might have bearing on the traits being studied. To evaluate these assumptions, we used Multidimensional Personality Questionnaire (MPQ) data from three samples drawn from the Minnesota Twin Registry (totaling 12,971 respondents) to examine the effect sizes associated with mean differences on the 11 MPQ scales and 3 higher-order MPQ factors for singletons versus twins and MZ twins versus DZ twins. The singletons in the samples were family members of the participating twins. We also used ratios of scale variances to examine the significance of variance differences. The only mean or variance difference replicated across all three samples was greater Social Closeness (about.1 standard deviation) for twins than for singletons. This difference was obtained for both males and females. It would appear that, with respect to personality, twins are not systematically different from other people. Our results also highlight the importance of replication in psychological research because each of our large samples showed differences not replicated in other samples.},
affiliation = {University of Minnesota, Twin Cities, Minnetonka, MN 55391, USA. john4350@tc.umn.edu},
number = {2},
pages = {125--31},
volume = {5},
year = {2002},
month = {Apr},
language = {eng},
keywords = {Male, Female, Analysis of Variance, Personality, Questionnaires, Twins, Personality Assessment, Twins: Monozygotic, Humans, Twins: Dizygotic},
date-added = {2010-05-01 17:23:50 +0200},
date-modified = {2010-05-01 17:23:50 +0200},
doi = {10.1375/1369052022992},
pmid = {11931690},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11465},
rating = {0}
}

@article{Legendre:2010p5008,
author = {P Legendre},
journal = {Encyclopedia of Research Design},
title = {Coefficient of concordance},
year = {2010},
date-added = {2010-02-05 00:09:33 +0100},
date-modified = {2010-02-05 00:10:05 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Legendre-2010-Encyclopedia%20of%20Research%20Design_Coefficient%20of%20conco.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5008},
rating = {0}
}

@article{Meuleners:2003p6626,
author = {Lynn B Meuleners and Andy H Lee and Colin W Binns and Anthony Lower},
journal = {Qual Life Res},
title = {Quality of life for adolescents: assessing measurement properties using structural equation modelling},
abstract = {Assessments for quality of life (QOL) of the adolescent have received relatively little attention in the literature. Although there is no consensus on the definition of adolescent QOL and what aspects should be measured, it is generally accepted that QOL is a multidimensional construct. The objective of this study is to determine the measurement properties of the latent factors underlying adolescent QOL based on a second-order confirmatory factor analysis (CFA). A recursive structural equation model (SEM) is then proposed to determine the direction and magnitude of the interdependent effects among the latent factors. The questionnaire used was the Quality of Life Profile-Adolescent Version (QOLPAV). A sample of 363 adolescents was recruited from 20 secondary schools in Perth, Australia. The second-order CFA suggested that adolescent QOL may be measured by five underlying constructs namely social, environment, psychological, health, and opportunities for growth. The interdependent relations among these constructs identified the environment factor as primary, exerting both direct and indirect effects on the other four factors.},
affiliation = {School of Public Health, Curtin University of Technology, Perth, WA, Australia.},
number = {3},
pages = {283--90},
volume = {12},
year = {2003},
month = {May},
language = {eng},
keywords = {Questionnaires, Factor Analysis: Statistical, Social Environment, Adolescent, Psychometrics, Self Assessment (Psychology), Humans, Western Australia, Quality of Life, Students, Attitude, Models: Psychological},
date-added = {2010-03-03 20:33:31 +0100},
date-modified = {2010-07-29 19:48:29 +0200},
pmid = {12769141},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Meuleners-2003-Qual%20Life%20Res_Quality%20of%20life%20for.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6626},
rating = {0}
}

@article{Steiger:1990p2431,
author = {J H Steiger},
journal = {Multivariate Behavioral Research},
title = {Some additional thoughts on components, factors, and factor indeterminacy},
number = {1},
pages = {41--45},
volume = {25},
year = {1990},
date-added = {2010-01-11 23:33:55 +0100},
date-modified = {2010-01-11 23:37:58 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Steiger-1990-Multivariate%20Behavioral%20Research_Some%20additional%20thou.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2431},
rating = {0}
}

@article{Dittrich:2005p14291,
author = {R Dittrich and B Francis and R Hatzinger and W Katzenbeisser},
title = {A Paired Comparison Approach for the Analysis of Sets of Likert Scale Responses},
abstract = {This paper provides an alternative methodology for the analysis of a set of Likert responses measured on a common attitudinal scale when the primary focus of interest is on the relative importance of items in the set. The method makes fewer assumptions about the distribution of the responses than the more usual approaches such as comparisons of means, MANOVA or ordinal data methods. The approach transforms the Likert responses into paired comparison responses between the items. The complete multivariate pattern of responses thus produced can be analysed by an appropriately reformulated paired comparison model. The dependency structure between item responses can also be modelled flexibly. The advan- tage of this approach is that sets of Likert responses can be analysed simultaneously within the Generalized Linear Model framework, providing standard likelihood based inference for model selection. This method is applied to a recent international survey on the importance of environmental problems.},
year = {2005},
date-added = {2010-08-22 21:18:09 +0200},
date-modified = {2010-08-22 21:19:40 +0200},
URL = {http://statmath.wu-wien.ac.at/},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Dittrich-2005-_A%20Paired%20Comparison.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p14291},
rating = {0}
}

@article{McGinnis:2010p12456,
author = {Ralph E McGinnis and Panos Deloukas and William M McLaren and Michael Inouye},
journal = {Hum Mol Genet},
title = {Visualizing chromosome mosaicism and detecting ethnic outliers by the method of "rare" heterozygotes and homozygotes (RHH)},
abstract = {We describe a novel approach for evaluating SNP genotypes of a genome-wide association scan to identify "ethnic outlier" subjects whose ethnicity is different or admixed compared to most other subjects in the genotyped sample set. Each ethnic outlier is detected by counting a genomic excess of "rare" heterozygotes and/or homozygotes whose frequencies are low (<1%) within genotypes of the sample set being evaluated. This method also enables simple and striking visualization of non-Caucasian chromosomal DNA segments interspersed within the chromosomes of ethnically admixed individuals. We show that this visualization of the mosaic structure of admixed human chromosomes gives results similar to another visualization method (SABER) but with much less computational time and burden. We also show that other methods for detecting ethnic outliers are enhanced by evaluating only genomic regions of visualized admixture rather than diluting outlier ancestry by evaluating the entire genome considered in aggregate. We have validated our method in the Wellcome Trust Case Control Consortium (WTCCC) study of 17,000 subjects as well as in HapMap subjects and simulated outliers of known ethnicity and admixture. The method's ability to precisely delineate chromosomal segments of non-Caucasian ethnicity has enabled us to demonstrate previously unreported non-Caucasian admixture in two HapMap Caucasian parents and in a number of WTCCC subjects. Its sensitive detection of ethnic outliers and simple visual discrimination of discrete chromosomal segments of different ethnicity implies that this method of rare heterozygotes and homozygotes (RHH) is likely to have diverse and important applications in humans and other species.},
affiliation = {Wellcome Trust Sanger Institute, Cambridge, UK. rm2@sanger.ac.uk},
number = {13},
pages = {2539--53},
volume = {19},
year = {2010},
month = {Jul},
language = {eng},
date-added = {2010-06-15 17:34:23 +0200},
date-modified = {2010-07-29 19:28:52 +0200},
doi = {10.1093/hmg/ddq102},
pii = {ddq102},
pmid = {20211853},
local-url = {file://localhost/Users/chl/Dropbox/Papers/McGinnis-2010-Hum%20Mol%20Genet_Visualizing%20chromoso.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12456},
rating = {0}
}

@article{Carvalho:2009p3287,
author = {B Carvalho and T A Louis and R A Irizarry},
journal = {Johns Hopkins University, Dept. of Biostatistics Working Papers},
title = {Quantifying uncertainty in genotype calls},
abstract = {Genome-wide association studies (GWAS) are used to discover genes underlying complex, heritable disorders for which less powerful study designs have failed in the past. The number of GWAS has skyrocketed recently with findings reported in top journals and the mainstream media. Mircorarrays are the genotype calling technology of choice in GWAS as they permit exploration of more than a million single nucleotide polymorphisms (SNPs)simultaneously. The starting point for the statistical analyses used by GWAS, to determine association between loci and disease, are genotype calls (AA, AB, or BB). However, the raw data, microarray probe intensities, are heavily processed before arriving at these calls. Various so- phisticated statistical procedures have been proposed for transforming raw data into genotype calls. We find that variability in microarray output quality across different SNPs, different arrays, and different sample batches has substantial in- uence on the accuracy of genotype calls made by existing algorithms. Failure to account for these sources of variability, GWAS run the risk of adversely affect- ing the quality of reported findings. In this paper we present solutions based on a multi-level mixed model. Software implementation of the method described in this paper is available as free and open source code in the crlmm R/BioConductor.},
number = {180},
year = {2009},
date-added = {2010-01-14 21:18:48 +0100},
date-modified = {2010-01-14 21:19:52 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Carvalho-2009-Johns%20Hopkins%20University%20Dept.%20of%20Biostatistics%20Working%20Papers_Quantifying%20uncertai.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3287},
rating = {0}
}

@article{Revelle:1979,
author = {W Revelle},
journal = {Multivariate Behavioral Research},
title = {Hierarchical Cluster Analysis and the Internal Structure of Tests},
abstract = {Hierarchical cluster analysis is shown to be an effective method for forming scales from sets of items. Comparisons with factor analytic techniques suggest that hierarchical analysis is superior in some respects for scale construction},
number = {1},
pages = {57--74},
volume = {14},
year = {1979},
date-added = {2010-01-03 19:38:21 +0100},
date-modified = {2010-01-03 19:38:22 +0100},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1177},
read = {Yes},
rating = {0}
}

@article{Flieller:1994,
author = {A Flieller},
journal = {Math{\'e}matiques {\&} Sciences Humaines},
title = {M{\'e}thodes d'{\'e}tude de l'ad{\'e}quation au mod{\`e}le logistique {\`a} un param{\`e}tre (mod{\`e}le de Rasch)},
pages = {19--47},
volume = {127},
year = {1994},
date-added = {2010-01-03 19:38:21 +0100},
date-modified = {2010-07-29 19:39:20 +0200},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1134},
read = {Yes},
rating = {4}
}

@article{Varni:2007p8503,
author = {James W Varni and Christine Limbers and Tasha M Burwinkle},
journal = {J Pediatr Psychol},
title = {Literature review: health-related quality of life measurement in pediatric oncology: hearing the voices of the children},
abstract = {OBJECTIVES: The objective of this literature review is to provide an overview of the evidence for pediatric patient self-report in pediatric oncology. Methods A review of the general literature on pediatric health-related quality of life (HRQOL) measurement as background, with pediatric patient self-report data from the Journal of Pediatric Psychology during the past 5 years in pediatric oncology summarized. Utilizing the PedsQL available at (http://www.pedsql.org), data are presented to illustrate child and parent reports in pediatric oncology. Results Data demonstrate that children as young as 5 years of age can reliably and validly self-report their HRQOL when an age-appropriate instrument is utilized. Conclusions The evidence supports including pediatric patients' perspectives in clinical trials. Parent proxy-report is recommended when pediatric patients are too young, too cognitively impaired, too ill or fatigued to complete a HRQOL instrument, but not as a substitute for child self-report when the child is willing and able to provide their perspective.},
affiliation = {College of Architecture, Texas A{\&}M University, 3137 TAMU, College Station, TX 77843-3137 USA. jvarni@archmail.tamu.edu},
number = {9},
pages = {1151--63},
volume = {32},
year = {2007},
month = {Oct},
language = {eng},
keywords = {Humans, Quality of Life, Neoplasms, Health Status, Attitude to Health, Child},
date-added = {2010-03-21 18:07:41 +0100},
date-modified = {2010-07-29 19:35:17 +0200},
doi = {10.1093/jpepsy/jsm008},
pii = {jsm008},
pmid = {17347186},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Varni-2007-J%20Pediatr%20Psychol_Literature%20review%20h.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8503},
rating = {0}
}

@article{Simpson:2008p12566,
author = {Helen Blair Simpson and Eva Petkova and Jianfeng Cheng and Jonathan Huppert and Edna Foa and Michael R Liebowitz},
journal = {J Psychiatr Res},
title = {Statistical choices can affect inferences about treatment efficacy: a case study from obsessive-compulsive disorder research},
abstract = {Longitudinal clinical trials in psychiatry have used various statistical methods to examine treatment effects. The validity of the inferences depends upon the different method's assumptions and whether a given study violates those assumptions. The objective of this paper was to elucidate these complex issues by comparing various methods for handling missing data (e.g., last observation carried forward [LOCF], completer analysis, propensity-adjusted multiple imputation) and for analyzing outcome (e.g., end-point analysis, repeated-measures analysis of variance [RM-ANOVA], mixed-effects models [MEMs]) using data from a multi-site randomized controlled trial in obsessive-compulsive disorder (OCD). The trial compared the effects of 12 weeks of exposure and ritual prevention (EX/RP), clomipramine (CMI), their combination (EX/RP{\&}CMI) or pill placebo in 122 adults with OCD. The primary outcome measure was the Yale-Brown Obsessive Compulsive Scale. For most comparisons, inferences about the relative efficacy of the different treatments were impervious to different methods for handling missing data and analyzing outcome. However, when EX/RP was compared to CMI and when CMI was compared to placebo, traditional methods (e.g., LOCF, RM-ANOVA) led to different inferences than currently recommended alternatives (e.g., multiple imputation based on estimation-maximization algorithm, MEMs). Thus, inferences about treatment efficacy can be affected by statistical choices. This is most likely when there are small but potentially clinically meaningful treatment differences and when sample sizes are modest. The use of appropriate statistical methods in psychiatric trials can advance public health by ensuring that valid inferences are made about treatment efficacy.},
affiliation = {Department of Psychiatry, Columbia University, USA. simpson@nyspi.cpmc.columbia.edu},
number = {8},
pages = {631--8},
volume = {42},
year = {2008},
month = {Jul},
language = {eng},
keywords = {Obsessive-Compulsive Disorder, Research Design, Clomipramine, Choice Behavior, Adult, Combined Modality Therapy, Middle Aged, Serotonin Uptake Inhibitors, Aged, Cognitive Therapy, Randomized Controlled Trials as Topic, Statistics as Topic, Humans, Treatment Outcome, Outcome Assessment (Health Care), Longitudinal Studies, Placebos, Adolescent},
date-added = {2010-06-15 22:19:50 +0200},
date-modified = {2010-06-15 22:19:50 +0200},
doi = {10.1016/j.jpsychires.2007.07.012},
pii = {S0022-3956(07)00125-2},
pmid = {17892885},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12566},
rating = {0}
}

@article{Koene:2009p8864,
author = {S Koene and T L Kozicz and R J T Rodenburg and C M Verhaak and M C de Vries and S Wortmann and L van de Heuvel and J A M Smeitink and E Morava},
journal = {J Affect Disord},
title = {Major depression in adolescent children consecutively diagnosed with mitochondrial disorder},
abstract = {A higher incidence of major depression has been described in adults with a primary oxidative phosphorylation disease. Intriguingly however, not all patients carrying the same mutation develop symptoms of major depression, pointing out the significance of the interplay of genetic and non-genetic factors in the etiology. In a series of paediatric patients evaluated for mitochondrial dysfunction, out of 35 children with a biochemically and genetically confirmed mitochondrial disorder, we identified five cases presenting with major depression prior to the diagnosis. The patients were diagnosed respectively with mutations in MTTK, MTND1, POLG1, PDHA1 and the common 4977 bp mtDNA deletion. Besides cerebral lactic acidemia protein and glucose concentrations, immunoglobins, anti-gangliosides and neurotransmitters were normal. No significant difference could be confirmed in the disease progression or the quality of life, compared to the other, genetically confirmed mitochondrial patients. In three out of our five patients a significant stress life event was confirmed. We propose the abnormal central nervous system energy metabolism as the underlying cause of the mood disorder in our paediatric patients. Exploring the genetic etiology in children with mitochondrial dysfunction and depression is essential both for safe medication and adequate counselling.},
affiliation = {Nijmegen Center for Mitochondrial Disorders, Department of Pediatrics, The Netherlands.},
number = {1-3},
pages = {327--32},
volume = {114},
year = {2009},
month = {Apr},
language = {eng},
keywords = {Mitochondrial Diseases, Psychiatric Status Rating Scales, Phenotype, Depressive Disorder: Major, Sequence Deletion, Genetic Predisposition to Disease, Humans, Male, Adolescent, Magnetic Resonance Imaging, Child, Child: Preschool, DNA: Mitochondrial, Netherlands, Female, Genotype, Comorbidity},
date-added = {2010-03-22 12:40:45 +0100},
date-modified = {2010-07-29 19:31:26 +0200},
doi = {10.1016/j.jad.2008.06.023},
pii = {S0165-0327(08)00279-6},
pmid = {18692904},
URL = {http://linkinghub.elsevier.com/retrieve/pii/S0165-0327(08)00279-6},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Koene-2009-J%20Affect%20Disord_Major%20depression%20in.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8864},
rating = {0}
}

@article{Waaijenborg:2009p4011,
author = {Sandra Waaijenborg and Aeilko H Zwinderman},
journal = {BMC Proc},
title = {Associating multiple longitudinal traits with high-dimensional single-nucleotide polymorphism data: application to the Framingham Heart Study},
abstract = {ABSTRACT : Cardiovascular diseases are associated with combinations of phenotypic traits, which are in turn caused by a combination of environmental and genetic factors. Because of the diversity of pathways that may lead to cardiovascular diseases, we examined the so-called intermediate phenotypes, which are often repeatedly measured. We developed a penalized nonlinear canonical correlation analysis to associate multiple repeatedly measured traits with high-dimensional single-nucleotide polymorphism data.},
affiliation = {Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Academic Medical Center, Amsterdam, PO Box 22700, 1100 DE, The Netherlands. s.waaijenborg@amc.uva.nl.},
pages = {S47},
volume = {3 Suppl 7},
year = {2009},
month = {Jan},
language = {eng},
date-added = {2010-01-18 14:59:18 +0100},
date-modified = {2010-07-29 19:21:19 +0200},
pmid = {20018039},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Waaijenborg-2009-BMC%20Proc_Associating%20multiple.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4011},
rating = {0}
}

@article{Hirsh:2009p13859,
author = {Jacob B Hirsh and Colin G DeYoung and Jordan B Peterson},
journal = {J Pers},
title = {Metatraits of the Big Five differentially predict engagement and restraint of behavior},
abstract = {Although initially believed to contain orthogonal dimensions, the Big Five personality taxonomy appears to have a replicable higher-order structure, with the metatrait of Plasticity reflecting the shared variance between Extraversion and Openness/Intellect, and the metatrait of Stability reflecting the shared variance among Neuroticism, Agreeableness, and Conscientiousness. These higher order traits have been theorized to relate to individual differences in the functioning of the dopamine and serotonin systems, respectively. As dopamine is associated with exploration and incentive-related action, and serotonin with satiety and constraint, this neuropharmacological trait theory has behavioral implications, which we tested in 307 adults by examining the association of a large number of behavioral acts with multi-informant reports of the metatraits. The frequencies of acts were consistently positively correlated with Plasticity and negatively correlated with Stability. At the broadest level of description, variation in human personality appears to reflect engagement and restraint of behavior.},
affiliation = {Department of Psychology, Sidney Smith Hall, University of Toronto, Toronto, ON M5S3G3, Canada. jacob.hirsh@utoronto.ca},
number = {4},
pages = {1085--102},
volume = {77},
year = {2009},
month = {Aug},
language = {eng},
keywords = {Male, Internal-External Control, Self Concept, Psychometrics, Social Environment, Humans, Factor Analysis: Statistical, Reproducibility of Results, Personality, Extraversion (Psychology), Adult, Personality Assessment, Introversion (Psychology), Interpersonal Relations, Female},
date-added = {2010-07-29 17:44:21 +0200},
date-modified = {2010-07-29 17:44:22 +0200},
doi = {10.1111/j.1467-6494.2009.00575.x},
pii = {JOPY575},
pmid = {19558442},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13859},
rating = {0}
}

@article{Terwee:2007p7359,
author = {Caroline B Terwee and Sandra D M Bot and Michael R de Boer and Dani{\"e}lle A W M van der Windt and Dirk L Knol and Joost Dekker and Lex M Bouter and Henrica C W de Vet},
journal = {Journal of Clinical Epidemiology},
title = {Quality criteria were proposed for measurement properties of health status questionnaires},
abstract = {OBJECTIVES: Recently, an increasing number of systematic reviews have been published in which the measurement properties of health status questionnaires are compared. For a meaningful comparison, quality criteria for measurement properties are needed. Our aim was to develop quality criteria for design, methods, and outcomes of studies on the development and evaluation of health status questionnaires. STUDY DESIGN AND SETTING: Quality criteria for content validity, internal consistency, criterion validity, construct validity, reproducibility, longitudinal validity, responsiveness, floor and ceiling effects, and interpretability were derived from existing guidelines and consensus within our research group. RESULTS: For each measurement property a criterion was defined for a positive, negative, or indeterminate rating, depending on the design, methods, and outcomes of the validation study. CONCLUSION: Our criteria make a substantial contribution toward defining explicit quality criteria for measurement properties of health status questionnaires. Our criteria can be used in systematic reviews of health status questionnaires, to detect shortcomings and gaps in knowledge of measurement properties, and to design validation studies. The future challenge will be to refine and complete the criteria and to reach broad consensus, especially on quality criteria for good measurement properties.},
affiliation = {EMGO Institute, VU University Medical Center, Van der Boechorststraat 7, 1081 BT Amsterdam, The Netherlands. cb.terwee@vumc.nl},
number = {1},
pages = {34--42},
volume = {60},
year = {2007},
month = {Jan},
language = {eng},
keywords = {Reproducibility of Results, Review Literature as Topic, Humans, Psychometrics, Research Design, Questionnaires, Evaluation Studies as Topic, Health Status Indicators},
date-added = {2010-03-10 20:29:15 +0100},
date-modified = {2010-03-10 20:29:15 +0100},
doi = {10.1016/j.jclinepi.2006.03.012},
pii = {S0895-4356(06)00174-0},
pmid = {17161752},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Terwee-2007-Journal%20of%20Clinical%20Epidemiology_Quality%20criteria%20wer.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7359},
rating = {0}
}

@article{Nicodemus:2010p5844,
author = {Kristin K Nicodemus and Joseph H Callicott and Rachel G Higier and Augustin Luna and Devon C Nixon and Barbara K Lipska and Radhakrishna Vakkalanka and Ina Giegling and Dan Rujescu and David St Clair and Pierandrea Muglia and Yin Yao Shugart and Daniel R Weinberger},
journal = {Hum Genet},
title = {Evidence of statistical epistasis between DISC1, CIT and NDEL1 impacting risk for schizophrenia: biological validation with functional neuroimaging},
abstract = {The etiology of schizophrenia likely involves genetic interactions. DISC1, a promising candidate susceptibility gene, encodes a protein which interacts with many other proteins, including CIT, NDEL1, NDE1, FEZ1 and PAFAH1B1, some of which also have been associated with psychosis. We tested for epistasis between these genes in a schizophrenia case-control study using machine learning algorithms (MLAs: random forest, generalized boosted regression and Monte Carlo logic regression). Convergence of MLAs revealed a subset of seven SNPs that were subjected to 2-SNP interaction modeling using likelihood ratio tests for nested unconditional logistic regression models. Of the (7)C(2) = 21 interactions, four were significant at the alpha = 0.05 level: DISC1 rs1411771-CIT rs10744743 OR = 3.07 (1.37, 6.98) p = 0.007; CIT rs3847960-CIT rs203332 OR = 2.90 (1.45, 5.79) p = 0.003; CIT rs3847960-CIT rs440299 OR = 2.16 (1.04, 4.46) p = 0.038; one survived Bonferroni correction (NDEL1 rs4791707-CIT rs10744743 OR = 4.44 (2.22, 8.88) p = 0.00013). Three of four interactions were validated via functional magnetic resonance imaging (fMRI) in an independent sample of healthy controls; risk associated alleles at both SNPs predicted prefrontal cortical inefficiency during the N-back task, a schizophrenia-linked intermediate biological phenotype: rs3847960-rs440299; rs1411771-rs10744743, rs4791707-rs10744743 (SPM5 p < 0.05, corrected), although we were unable to statistically replicate the interactions in other clinical samples. Interestingly, the CIT SNPs are proximal to exons that encode the DISC1 interaction domain. In addition, the 3' UTR DISC1 rs1411771 is predicted to be an exonic splicing enhancer and the NDEL1 SNP is ~3,000 bp from the exon encoding the region of NDEL1 that interacts with the DISC1 protein, giving a plausible biological basis for epistasis signals validated by fMRI.},
affiliation = {Genes, Cognition and Psychosis Program, Intramural Research Program, National Institute of Mental Health, National Institutes of Health, Room 4S-235, 10 Center Drive, Bethesda, MD, 20892, USA, kristin.nicodemus@well.ox.ac.uk.},
pages = {},
year = {2010},
month = {Jan},
language = {ENG},
date-added = {2010-02-17 10:18:26 +0100},
date-modified = {2010-07-29 19:28:44 +0200},
doi = {10.1007/s00439-009-0782-y},
pmid = {20084519},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Nicodemus-2010-Hum%20Genet_Evidence%20of%20statisti.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5844},
rating = {0}
}

@article{Saavalainen:2006p8634,
author = {Pia Saavalainen and Laila Luoma and Dermot Bowler and Tero Timonen and Sara M{\"a}{\"a}tt{\"a} and Eila Laukkanen and Eila Herrg{\aa}rd},
journal = {Dev Med Child Neurol},
title = {Naming skills of children born preterm in comparison with their term peers at the ages of 9 and 16 years},
abstract = {The linguistic abilities of children born preterm at 32 weeks' gestation or earlier at Kuopio University Hospital during 1984 to 1986 were evaluated during successive phases of a prospective study. The study protocol included the Rapid Automatic Naming test and Wechsler Intelligence Scale for Children - Revised at 9 years of age and a modified Stroop Color-Word test and the Wechsler Intelligence Scale - Revised at the age of 16 years. Fifty-one children born preterm (26 males, 25 females) and 51 age-matched and sex-matched term controls (26 males, 25 females) were studied at the age of 9 years. At the age of 16 years, 40 children born preterm (19 males, 21 females) and 31 term controls (14 males, 17 females) participated in the study. The children born preterm scored significantly lower in two naming tasks than the controls at the age of 9 years. However, there was no difference between the study groups in naming skills at the age of 16 years or in verbal IQ in either study phase. Maternal education level was not associated with naming skills. Thus, the consequences of preterm birth seem to be minor in relation to linguistic skills during school age and diminish by adolescence.},
affiliation = {Department of Psychology, University of Joensuu, Finland. pia.saavalainen@kuh.fi},
number = {1},
pages = {28--32},
volume = {48},
year = {2006},
month = {Jan},
language = {eng},
keywords = {Child, Infant: Premature, Male, Prospective Studies, Intelligence Tests, Child Development, Semantics, Neuropsychological Tests, Female, Follow-Up Studies, Adolescent, Longitudinal Studies, Disability Evaluation, Humans, Educational Status, Infant: Newborn, Adolescent Development},
date-added = {2010-03-22 00:27:05 +0100},
date-modified = {2010-03-22 00:27:05 +0100},
doi = {10.1017/S0012162206000077},
pii = {S0012162206000077},
pmid = {16359591},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Saavalainen-2006-Developmental%20medicine%20and%20child%20neurology_Naming%20skills%20of%20chi.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8634},
rating = {0}
}

@article{Unalan:2008p5390,
author = {Demet Unalan and Ferhan Soyuer and Ahmet Ozturk and Selcuk Mistik},
journal = {Neurol India},
title = {Comparison of SF-36 and WHOQOL-100 in patients with stroke},
abstract = {BACKGROUND AND AIMS: Two widely used evaluation tools for the quality of life are the 36-item Short-Form Health Survey (SF-36) and World Health Organization Quality of Life Assessment (100-item version) (WHOQOL-100), however, these tools have not been compared for patients with stroke to date. The specific objectives of this study were: 1) to study the effect of stroke on quality of life (QOL) as measured by the SF-36 and by the WHOQOL-100, and 2) to compare these two instruments. SETTINGS AND DESIGN: Seventy patients who were admitted to the neurology clinic six months after stroke were included in this study. PATIENTS AND METHODS: As a data-collecting device, the SF-36 and WHOQOL-100 scales were used. An additional questionnaire was administered to obtain demographic data. STATISTICAL ANALYSIS: Pearson correlation analysis was performed and Blant-Altman Plots were used. Psychometric analysis was performed. RESULTS: In stroke, the most flustered domains of quality of life were vitality and general health perception fields in the SF-36 and in the WHOQL-100, independence level field, overall QOL and general health perceptions. While there was a fair degree of relationship (r= 0.25-0.50) between general health perceptions, physical, social and mental fields that were similar fields of scales, a fair and moderate to good relationship was found between different fields. Limits of agreement in similar domains of the two instruments were very large. In all four demonstrated Bland-Altman plots, there was agreement of the scales in the measurements of similar fields of quality of life. CONCLUSION: This study demonstrated that both the SF-36 and WHOQOL-100 quality of life scales are useful in the practical evaluation of patients with stroke.},
affiliation = {Erciyes University Halil Bayraktar Health Services Vocational College, TR-38039, Kayseri, Turkey. dunalan@erciyes.edu.tr},
number = {4},
pages = {426--32},
volume = {56},
year = {2008},
month = {Jan},
language = {eng},
keywords = {Aged, Young Adult, Stroke, Humans, Questionnaires, Middle Aged, Female, Reproducibility of Results, Male, Adult, Quality of Life},
date-added = {2010-02-11 10:36:28 +0100},
date-modified = {2010-02-11 10:36:28 +0100},
pmid = {19127037},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5390},
rating = {0}
}

@article{Pejtersen:2010p1515,
author = {J H Pejtersen and J B Bjorner and P Hasle},
journal = {Scandinavian Journal of Public Health},
title = {Determining minimally important score differences in scales of the Copenhagen Psychosocial Questionnaire},
abstract = {Aim: To determine minimally important differences (MIDs) for scales in the first version of the Copenhagen Psychosocial Questionnaire (COPSOQ). Methods: Data were taken from two separate studies: a national population survey (N 1⁄4 1062), and an intervention study at 14 workplaces (N 1⁄4 1505). On the basis of the population survey, the MID for each COPSOQ scale was calculated as one-half of a standard deviation (0.5 SD). For the core COPSOQ scales on ``Quantitative demands'', ``Influence at work'', ``Predictability'', ``Social support (from colleagues and supervisors, respectively)'', and ``Job satisfaction'', the MIDs were evaluated in the intervention study, where score differences for the scales were linked to the respondents' global self-evaluation of the impact of the interventions. The scales were scored from 0 to 100 in both studies. Results: The MIDs calculated as 0.5 SD were, on average, 9.2 (range 6.8--14.9) for the long version scales, and 10.8 (range 7.6--14.9) for the medium-length version scales. The analysis of the self-evaluated changes on the scale scores for the core COPSOQ scales showed that the anchor-based estimates of MID were generally lower than 0.5 SD. Conclusions: We recommend the following MID values for the COPSOQ scales: ``Quantitative demands'', 0.3 SD; ``Influence'', 0.2 SD; ``Predictability'', 0.3 SD; ``Social support from colleagues'', 0.3 SD; ``Social support from supervisor'', 0.7 SD; and ``Job satisfaction'', 0.4 SD. For all other COPSOQ scales, where we do not have anchor-based results, we recommend the conventional MID value of 0.5 SD.},
affiliation = {National Research Centre for the Working Environment, Lers{\o} Parkalle ́ 105, DK 2100 Copenhagen, Denmark},
pages = {33--41},
volume = {38},
year = {2010},
keywords = {psychosocial factors, questionnaire, minimally important difference, Meaningful change, psychosocial work environment},
date-added = {2010-01-07 12:43:09 +0100},
date-modified = {2010-01-07 12:49:34 +0100},
doi = {10.1177/1403494809347024},
URL = {http://sjp.sagepub.com/cgi/content/abstract/38/3_suppl/33},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Pejtersen-2010-Scandinavian%20Journal%20of%20Public%20Health_Determining%20minimall.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1515},
rating = {0}
}

@article{Duncan:2010p4925,
author = {C E Duncan and M J Webster and D A Rothmond and S Bahn and M Elashoff and C S Weickert},
journal = {J Psychiatr Res},
title = {Prefrontal GABAA receptor a-subunit expression in normal postnatal human development and schizophrenia},
abstract = {Cortical GABA deficits that are consistently reported in schizophrenia may reflect an etiology of failed normal postnatal neurotransmitter maturation. Previous studies have found prefrontal cortical GABAA receptor a subunit alterations in schizophrenia, yet their relationship to normal developmental expres- sion profiles in the human cortex has not been determined. The aim of this study was to quantify GABAA receptor a-subunit mRNA expression patterns in human dorsolateral prefrontal cortex (DLPFC) during normal postnatal development and in schizophrenia cases compared to controls. Transcript levels of GABAA receptor a subunits were measured using microarray and qPCR analysis of 60 normal individuals aged 6 weeks to 49 years and in 37 patients with schizophrenia/schizoaffective disorder and 37 matched controls. We detected robust opposing changes in cortical GABAA receptor a1 and a5 subunits during the first few years of postnatal development, with a 60% decrease in a5 mRNA expression and a doubling of a1 mRNA expression with increasing age. In our Australian schizophrenia cohort we detected decreased GAD67 mRNA expression (p = 0.0012) and decreased a5 mRNA expression (p = 0.038) in the DLPFC with no significant change of other a subunits. Our findings confirm that GABA deficits (reduced GAD67) are a consistent feature of schizophrenia postmortem brain studies. Our study does not confirm alterations in cortical a1 or a2 mRNA levels in the schizophrenic DLPFC, as seen in previous studies, but instead we report a novel down-regulation of a5 subunit mRNA suggesting that post-synaptic alterations of inhibi- tory receptors are an important feature of schizophrenia but may vary between cohorts.},
year = {2010},
date-added = {2010-02-02 11:33:26 +0100},
date-modified = {2010-07-29 19:35:54 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Duncan-2010-J%20Psychiatr%20Res_Prefrontal%20GABAA%20rec.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4925},
rating = {0}
}

@article{Pan:2010p9847,
author = {Yi Pan and Jingjing Gao and Michael Haber and Huiman X Barnhart},
journal = {Computer methods and programs in biomedicine},
title = {Estimation of coefficients of individual agreement (CIAs) for quantitative and binary data using SAS and R},
abstract = {The coefficients of individual agreement (CIAs), which are based on the ratio of the intra- and inter-observer disagreement, provide a general approach for evaluating agreement between two fixed methods of measurements or human observers. In this paper, programs in both SAS and R are presented for estimation of the CIAs between two observers with quantitative or binary measurements. A detailed illustration of the computations, macro variable definitions, input and output for the SAS and R programs are also included in the text. The programs provide estimations of CIAs, their standard errors as well as confidence intervals, for the cases with or without a reference method. Data from a carotid stenosis screening study is used as an example of quantitative measurements. Data from a study involving the evaluation of mammograms by ten radiologists is used to illustrate a binary data example.},
affiliation = {Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, 1518 Clifton Road NE, Atlanta, GA, 30322, United States.},
pages = {},
year = {2010},
month = {Jan},
language = {ENG},
date-added = {2010-03-26 19:28:09 +0100},
date-modified = {2010-03-26 19:28:58 +0100},
doi = {10.1016/j.cmpb.2009.12.002},
pii = {S0169-

repository: sergiud/bibtex-spirit

repo_name: sergiud/bibtex-spirit

gha_license_id: MIT