text:
tomous items: the generalized partial credit model, the sequential model, and the graded response model. The test can also be used in the framework of multidimensional ability parameters. It is shown that the Lagrange multiplier statistic can take both the effects of estimation of the item parameters and the estimation of the person parameters into account. The Lagrange multiplier statistic has an asymptotic χ2-distribution. The Type I error rate and power are investigated using simulation studies. Results show that test statistics that ignore the effects of estimation of the persons' ability parameters have decreased Type I error rates and power. Incorporating a correction to account for the effects of the estimation of the persons' ability parameters results in acceptable Type I error rates and power characteristics; incorporating a correction for the estimation of the item parameters has very little additional effect. It is investigated to what extent the three models give comparable results, both in the simulation studies and in an example using data from the NEO Personality Inventory-Revised.},
number = {2},
pages = {159--180},
volume = {72},
year = {2007},
keywords = {model fit, polytomous items, person fit, Type I error, power, item response theory, multidimensional item response theory},
date-added = {2010-01-03 14:18:10 +0100},
date-modified = {2010-01-03 14:22:49 +0100},
doi = {10.1007/s11336-003-1081-5},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Glas-2007-Psychometrika_A%20person-fit%20test%20fo-1.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p548},
rating = {3}
}

@article{Casanova:2007p1706,
author = {Ramon Casanova and Ryali Srikanth and Aaron Baer and Paul J Laurienti and Jonathan H Burdette and Satoru Hayasaka and Lynn Flowers and Frank Wood and Joseph A Maldjian},
journal = {Neuroimage},
title = {Biological parametric mapping: A statistical toolbox for multimodality brain image analysis},
abstract = {In recent years, multiple brain MR imaging modalities have emerged; however, analysis methodologies have mainly remained modality-specific. In addition, when comparing across imaging modalities, most researchers have been forced to rely on simple region-of-interest type analyses, which do not allow the voxel-by-voxel comparisons necessary to answer more sophisticated neuroscience questions. To overcome these limitations, we developed a toolbox for multimodal image analysis called biological parametric mapping (BPM), based on a voxel-wise use of the general linear model. The BPM toolbox incorporates information obtained from other modalities as regressors in a voxel-wise analysis, thereby permitting investigation of more sophisticated hypotheses. The BPM toolbox has been developed in Matlab with a user-friendly interface for performing analyses, including voxel-wise multimodal correlation, ANCOVA, and multiple regression. It has a high degree of integration with the SPM (statistical parametric mapping) software relying on it for visualization and statistical inference. Furthermore, statistical inference for a correlation field, rather than a widely used T-field, has been implemented in the correlation analysis for more accurate results. An example with in vivo data is presented, demonstrating the potential of the BPM methodology as a tool for multimodal image analysis.},
affiliation = {Advanced Neuroscience Imaging Research (ANSIR) Laboratory, Department of Radiology, Wake Forest University School of Medicine, USA. casanova@wfubmc.edu},
number = {1},
pages = {137--43},
volume = {34},
year = {2007},
month = {Jan},
language = {eng},
keywords = {Humans, Software, Brain Mapping, Brain, Statistics as Topic},
date-added = {2010-01-09 19:16:05 +0100},
date-modified = {2010-01-09 19:16:06 +0100},
doi = {10.1016/j.neuroimage.2006.09.011},
pii = {S1053-8119(06)00946-3},
pmid = {17070709},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Casanova-2007-Neuroimage_Biological%20parametri.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1706},
rating = {0}
}

@article{Grant:2009p1548,
author = {M C Grant and L Zhang and M Damiano},
title = {An Evaluation of Kernel Equating: Parallel Equating With Classical Methods in the SAT Subject TestsTM Program},
year = {2009},
date-added = {2010-01-07 16:33:05 +0100},
date-modified = {2010-01-07 16:33:41 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Grant-2009-_An%20Evaluation%20of%20Ker.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1548},
rating = {0}
}

@article{May:2006,
author = {H May},
journal = {Journal of Educational and Behavioral Statistics},
title = {A Multilevel Bayesian Item Response Theory Method for Scaling Socioeconomic Status in International Studies of Education},
abstract = {In this article, a new method is presented and implemented for deriving a scale of socioeconomic status (SES) from international survey data using a multilevel Bayesian item response theory (IRT) model. The proposed model incorporates both international anchor items and nation-specific items and is able to (a) produce student family SES scores that are internationally comparable, (b) reduce the influence of irrelevant national differences in culture on the SES scores, and (c) effectively and efficiently deal with the problem of missing data in a manner similar to Rubin's (1987) multiple imputation approach. The results suggest that this model is superior to conventional models in terms of its fit to the data and its ability to use information collected via international surveys.},
number = {1},
pages = {63--79},
volume = {31},
year = {2006},
date-added = {2010-01-03 19:38:21 +0100},
date-modified = {2010-07-29 19:33:45 +0200},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1150},
read = {Yes},
rating = {0}
}

@article{Tari:2009p2374,
author = {Luis Tari and Chitta Baral and Seungchan Kim},
journal = {J Biomed Inform},
title = {Fuzzy c-means clustering with prior biological knowledge},
abstract = {We propose a novel semi-supervised clustering method called GO Fuzzy c-means, which enables the simultaneous use of biological knowledge and gene expression data in a probabilistic clustering algorithm. Our method is based on the fuzzy c-means clustering algorithm and utilizes the Gene Ontology annotations as prior knowledge to guide the process of grouping functionally related genes. Unlike traditional clustering methods, our method is capable of assigning genes to multiple clusters, which is a more appropriate representation of the behavior of genes. Two datasets of yeast (Saccharomyces cerevisiae) expression profiles were applied to compare our method with other state-of-the-art clustering methods. Our experiments show that our method can produce far better biologically meaningful clusters even with the use of a small percentage of Gene Ontology annotations. In addition, our experiments further indicate that the utilization of prior knowledge in our method can predict gene functions effectively. The source code is freely available at http://sysbio.fulton.asu.edu/gofuzzy/.},
affiliation = {School of Computing and Informatics, Department of Computer Science and Engineering, Ira A. Fulton School of Engineering, Arizona State University, P.O. Box 878809, Tempe, AZ 85287-8809, USA. luis.tari@asu.edu},
number = {1},
pages = {74--81},
volume = {42},
year = {2009},
month = {Feb},
language = {eng},
keywords = {Genes: Fungal, Computational Biology, Saccharomyces cerevisiae, Genes, Software, Cluster Analysis, Fuzzy Logic, Databases: Genetic, Algorithms, Reproducibility of Results, Gene Expression Profiling, Oligonucleotide Array Sequence Analysis, Normal Distribution, Internet},
date-added = {2010-01-10 19:28:31 +0100},
date-modified = {2010-01-10 19:28:31 +0100},
doi = {10.1016/j.jbi.2008.05.009},
pii = {S1532-0464(08)00079-8},
pmid = {18595779},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Tari-2009-J%20Biomed%20Inform_Fuzzy%20c-means%20cluste.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2374},
rating = {0}
}

@article{Caruso:2000,
author = {J C Caruso},
journal = {Educational and Psychological Measurement},
title = {Reliability Generalization of the NEO personality scales},
pages = {236--254},
volume = {60},
year = {2000},
date-added = {2010-01-10 11:33:21 +0100},
date-modified = {2010-01-10 11:33:25 +0100},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2134},
rating = {0}
}

@article{Pearl:2009p4090,
author = {J Pearl and A Paz},
title = {Confounding Equivalence in Observational Studies (or, when are two measurements equally valuable for effect estimation?)},
abstract = {The paper provides a simple test for deciding, from a given causal diagram, whether two sets of covariates have the same bias-reducing potential under adjustment. The test requires that one of the following two conditions holds: either (1) both sets are admissible (i.e., satisfy the back-door criterion) or (2) the Markov boundaries surrounding the treatment variable(s) are identical in both sets. Applications to covariate selection and model testing are discussed.},
year = {2009},
date-added = {2010-01-19 23:04:51 +0100},
date-modified = {2010-01-19 23:05:32 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Pearl-2009-_Confounding%20Equivale.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4090},
rating = {0}
}

@book{CoE:2005,
author = {CoE},
journal = {Book},
title = {The Common European Framework},
year = {2005},
date-added = {2010-01-10 11:33:19 +0100},
date-modified = {2010-01-10 11:33:25 +0100},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2215},
rating = {0}
}

@article{Myers:2007p7793,
author = {Amanda J Myers and J Raphael Gibbs and Jennifer A Webster and Kristen Rohrer and Alice Zhao and Lauren Marlowe and Mona Kaleem and Doris Leung and Leslie Bryden and Priti Nath and Victoria L Zismann and Keta Joshipura and Matthew J Huentelman and Diane Hu-Lince and Keith D Coon and David W Craig and John V Pearson and Peter Holmans and Christopher B Heward and Eric M Reiman and Dietrich Stephan and John Hardy},
journal = {Nat Genet},
title = {A survey of genetic human cortical gene expression},
abstract = {It is widely assumed that genetic differences in gene expression underpin much of the difference among individuals and many of the quantitative traits of interest to geneticists. Despite this, there has been little work on genetic variability in human gene expression and almost none in the human brain, because tools for assessing this genetic variability have not been available. Now, with whole-genome SNP genotyping arrays and whole-transcriptome expression arrays, such experiments have become feasible. We have carried out whole-genome genotyping and expression analysis on a series of 193 neuropathologically normal human brain samples using the Affymetrix GeneChip Human Mapping 500K Array Set and Illumina HumanRefseq-8 Expression BeadChip platforms. Here we present data showing that 58% of the transcriptome is cortically expressed in at least 5% of our samples and that of these cortically expressed transcripts, 21% have expression profiles that correlate with their genotype. These genetic-expression effects should be useful in determining the underlying biology of associations with common diseases of the human brain and in guiding the analysis of the genomic regions involved in the control of normal gene expression.},
affiliation = {Laboratory of Neurogenetics, National Institute on Aging, Porter Neuroscience Building, National Institutes of Health Main Campus, Bethesda, Maryland 20892, USA. amyers@med.miami.edu},
number = {12},
pages = {1494--9},
volume = {39},
year = {2007},
month = {Dec},
language = {eng},
keywords = {Aged, Gene Expression Profiling, Genetic Variation, Aged: 80 and over, Polymorphism: Single Nucleotide, Humans, Cerebral Cortex, Oligonucleotide Array Sequence Analysis},
date-added = {2010-03-17 20:59:13 +0100},
date-modified = {2010-03-17 20:59:13 +0100},
doi = {10.1038/ng.2007.16},
pii = {ng.2007.16},
pmid = {17982457},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Myers-2007-Nat%20Genet_A%20survey%20of%20genetic.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7793},
read = {Yes},
rating = {0}
}

@article{Holland:1990p6272,
author = {P W Holland},
journal = {Psychometrika},
title = {The Dutch Identity: A new tool for the study of item response models},
abstract = {The Dutch Identity is a useful way to reexpress the basic equations of item response models that relate the manifest probabilities to the item response functions (IRFs) and the latent trait distribution. The identity may be exploited in several ways. For example: (a) to suggest how item response models behave for large numbers of items--they are approximate submodels of second-order loglinear models for 2J tables; (b) to suggest new ways to assess the dimen- sionality of the latent trait--principle components analysis of matrices composed of second- order interactions from loglinear models; (c) to give insight into the structure of latent class models; and (d) to illuminate the problem of identifying the IRFs and the latent trait distribution from sample data.},
number = {1},
pages = {5--18},
volume = {55},
year = {1990},
date-added = {2010-02-20 17:20:21 +0100},
date-modified = {2010-02-20 17:21:56 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Holland-1990-Psychometrika_The%20Dutch%20Identity.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6272},
rating = {0}
}

@article{Petrov:2000p14180,
author = {Alexander A Petrov and John R Anderson},
title = {ANCHOR: A Memory-Based Model of Category Rating},
abstract = {This paper attempts to draw a bridge between psychophys- ics and memory research by proposing a memory-based model of category rating. The model is based on the cogni- tive architecture ACT-R and uses anchors stored in memory that serve as prototypes for the stimuli classified within a response category. The anchors are retrieved by a partial matching mechanism and updated dynamically by an in- cremental learning mechanism. Anchors also have base- level activations that reflect the frequency and recency of the responses. These mechanisms give rise to sequential effects and nonuniform response distributions. A psycho- logical experiment involving category rating of physical length is reported and the predictions of the model are compared against the empirical data. The psychophysical implications of the model are discussed.},
year = {2000},
date-added = {2010-08-22 20:16:07 +0200},
date-modified = {2010-08-22 20:16:59 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Petrov-2000-_ANCHOR%20A%20Memory-Bas.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p14180},
rating = {0}
}

@article{Clark:1989,
author = {HH Clark and EF Schaeffer},
journal = {Cognitive Science},
title = {Contributing to discourse},
abstract = {For people to contribute to discourse, they must do more than utter the tight sentence at the right time. The basic requirement is that they add to their common ground in an orderly way. To do this, we argue, they try to establish for each utterance the mutual belief that the addressees have understood what the speaker meant well enough for current purposes. We present a model of contributions and show how it accounts for a variety of features of everyday conversations},
pages = {259--294},
volume = {13},
year = {1989},
date-added = {2010-01-03 19:34:17 +0100},
date-modified = {2010-01-03 19:34:18 +0100},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1008},
rating = {0}
}

@article{Hartley:1971p6319,
author = {H O Hartley and J N K Rao},
journal = {The American Statistician},
title = {Foundations of Survey Sampling (A Don Quixote Tragedy)},
number = {1},
pages = {21--27},
volume = {25},
year = {1971},
date-added = {2010-02-20 21:14:06 +0100},
date-modified = {2010-07-29 19:51:39 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Hartley-1971-The%20American%20Statistician_Foundations%20of%20Surve.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6319},
rating = {0}
}

@article{Johnsen:2010p9809,
author = {Erik Johnsen and Rune A Kroken and Tore Wentzel-Larsen and Hugo A Jorgensen},
journal = {BMC Psychiatry},
title = {Effectiveness of second-generation antipsychotics: a naturalistic, randomized comparison of olanzapine, quetiapine, risperidone, and ziprasidone},
abstract = {ABSTRACT: Background No clear recommendations exist regarding which antipsychotic drug should be prescribed first for a patient suffering from psychosis. The primary aims of this naturalistic study were to assess the head-to-head effectiveness of first-line second-generation antipsychotics with regards to time until drug discontinuation, duration of index admission, time until readmission, change of psychopathology scores and tolerability outcomes. Methods Patients 18 years or more of age admitted to the emergency ward for symptoms of psychosis were consecutively randomized to risperidone (n=53), olanzapine (n=52), quetiapine (n=50), or ziprasidone (n=58), and followed for up to 2 years. Results A total of 213 patients were included, of which 68% were males. The sample represented a diverse population suffering from psychosis. At admittance the mean Positive and Negative Syndrome Scale (PANSS) total score was 74 points and 44% were antipsychotic drug naive. The primary intention-to-treat analyses revealed no substantial differences between the drugs regarding the times until discontinuation of initial drug, until discharge from index admission, or until readmission. Quetiapine was superior to risperidone and olanzapine in reducing the PANSS total score and the positive subscore. Quetiapine was superior to the other drugs in decreasing the PANSS general psychopathology subscore; in decreasing the Clinical Global Impression - Severity of Illness scale score (CGI-S); and in increasing the Global Assessment of Functioning - Split version, Functions scale score (GAF-F). Ziprasidone was superior to risperidone in decreasing the PANSS positive symptoms subscore and the CGI-S score, and in increasing the GAF-F score. The drugs performed equally with regards to most tolerability outcomes except a higher increase of hip-circumference per day for olanzapine compared to risperidone, and more galactorrhoea for risperidone compared to the other groups. Conclusions Quetiapine appears to be a good starting drug candidate in this sample of patients admitted to hospital for symptoms of psychosis. Trial Registration ClinicalTrials.gov ID; URL: http://www.clinicaltrials.gov/: NCT00932529.},
number = {1},
pages = {26},
volume = {10},
year = {2010},
month = {Mar},
language = {ENG},
date-added = {2010-03-26 19:21:33 +0100},
date-modified = {2010-03-26 19:21:33 +0100},
doi = {10.1186/1471-244X-10-26},
pii = {1471-244X-10-26},
pmid = {20334680},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Johnsen-2010-BMC%20Psychiatry_Effectiveness%20of%20sec-1.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p9809},
rating = {0}
}

@article{Schafer:2009p7877,
author = {Robin J Schafer and Cheryl Lacadie and Betty Vohr and Shelli R Kesler and Karol H Katz and Karen C Schneider and Kenneth R Pugh and Robert W Makuch and Allan L Reiss and R Todd Constable and Laura R Ment},
journal = {Brain},
title = {Alterations in functional connectivity for language in prematurely born adolescents},
abstract = {Recent data suggest recovery of language systems but persistent structural abnormalities in the prematurely born. We tested the hypothesis that subjects who were born prematurely develop alternative networks for processing language. Subjects who were born prematurely (n = 22; 600-1250 g birth weight), without neonatal brain injury on neonatal cranial ultrasound, and 26 term control subjects were examined with a functional magnetic resonance imaging (fMRI) semantic association task, the Wechsler Intelligence Scale for Children-III (WISC-III) and the Clinical Evaluation of Language Fundamentals (CELF). In-magnet task accuracy and response times were calculated, and fMRI data were evaluated for the effect of group on blood oxygen level dependent (BOLD) activation, the correlation between task accuracy and activation and the functional connectivity between regions activating to task. Although there were differences in verbal IQ and CELF scores between the preterm (PT) and term control groups, there were no significant differences for either accuracy or response time for the in-magnet task. Both groups activated classic semantic processing areas including the left superior and middle temporal gyri and inferior frontal gyrus, and there was no significant difference in activation patterns between groups. Clear differences between the groups were observed in the correlation between task accuracy and activation to task at P < 0.01, corrected for multiple comparisons. Left inferior frontal gyrus correlated with accuracy only for term controls and left sensory motor areas correlated with accuracy only for PT subjects. Left middle temporal gyri correlated with task accuracy for both groups. Connectivity analyses at P < 0.001 revealed the importance of a circuit between left middle temporal gyri and inferior frontal gyrus for both groups. In addition, the PT subjects evidenced greater connectivity between traditional language areas and sensory motor areas but significantly fewer correlated areas within the frontal lobes when compared to term controls. We conclude that at 12 years of age, children born prematurely and children born at term had no difference in performance on a simple lexical semantic processing task and activated similar areas. Connectivity analyses, however, suggested that PT subjects rely upon different neural pathways for lexical semantic processing when compared to term controls. Plasticity in network connections may provide the substrate for improving language skills in the prematurely born.},
affiliation = {Department of Diagnostic Imaging, Magnetic Resonance Research Center, Yale University School of Medicine, PO Box 208043, New Haven, CT 06520, USA. rschafer01@gmail.com},
number = {Pt 3},
pages = {661--70},
volume = {132},
year = {2009},
month = {Mar},
language = {eng},
keywords = {Language Tests, Semantics, Intelligence, Case-Control Studies, Brain Mapping, Frontal Lobe, Temporal Lobe, Infant: Newborn, Neuronal Plasticity, Language Development, Neural Pathways, Magnetic Resonance Imaging, Birth Weight, Child, Infant: Premature, Male, Female, Humans},
date-added = {2010-03-20 19:16:33 +0100},
date-modified = {2010-03-20 19:16:33 +0100},
doi = {10.1093/brain/awn353},
pii = {awn353},
pmid = {19158105},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Schafer-2009-Brain_Alterations%20in%20funct.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7877},
rating = {0}
}

@article{Moss:2010p13660,
author = {Sue Moss},
journal = {Stat Methods Med Res},
title = {Design issues in cancer screening trials},
abstract = {Randomised controlled trials avoid many of the potential biases associated with the evaluation of cancer screening. Nevertheless there are many issues concerning the design of such trials that require careful consideration and that will influence interpretation of the results. This article discusses issues related to recruitment and randomisation, which will affect the extent to which the population studied, is representative of the eventual target population of a screening programme. It addresses sample size considerations, the use of appropriate outcome measures and the timing of the intervention. Finally, issues related to ensuring appropriate analyses are discussed.},
affiliation = {Cancer Screening Evaluation Unit, Institute of Cancer Research, Sutton, Surrey, UK.},
pages = {},
year = {2010},
month = {May},
language = {ENG},
date-added = {2010-07-11 09:03:33 +0200},
date-modified = {2010-07-11 09:03:33 +0200},
doi = {10.1177/0962280209359846},
pii = {0962280209359846},
pmid = {20442197},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Moss-2010-Stat%20Methods%20Med%20Res_Design%20issues%20in%20can.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13660},
rating = {0}
}

@article{Knop:2009p1252,
author = {Joachim Knop and Elizabeth C Penick and Elizabeth J Nickel and Erik L Mortensen and Margaret A Sullivan and Syed Murtaza and Per Jensen and Ann M Manzardo and William F Gabrielli},
journal = {Journal of studies on alcohol and drugs},
title = {Childhood ADHD and conduct disorder as independent predictors of male alcohol dependence at age 40},
abstract = {OBJECTIVE: The Danish Longitudinal Study on Alcoholism was designed to identify antecedent predictors of adult male alcoholism. The influence of premorbid behaviors consistent with childhood conduct disorder (CD) and attention-deficit/hyperactivity disorder (ADHD) on the development of alcohol misuse was examined. METHOD: Subjects were selected from a Danish birth cohort (9,125), which included 223 sons of alcoholic fathers (high risk) and 106 matched sons of nonalcoholic fathers (low risk). These subjects have been studied systematically over the past 40 years. They were evaluated in their teens (n=238), later as adults at age 30 (n=241), and more recently at age 40 (n=202). At 19-year/20-year follow-ups, an ADHD scale was derived from teacher ratings and a CD scale was derived from a social worker interview. At 30-year and 40-year follow-ups, a psychiatrist used structured interviews and criteria from the Diagnostic and Statistical Manual of Mental Disorders, Third Edition, Revised, to quantify lifetime alcoholism severity and to diagnose alcohol-use disorder. Of the original subjects, 110 had complete data for the two childhood measures and the adult alcoholism outcomes. RESULTS: In this smaller subsample, paternal risk did not predict adult alcohol dependence. Subjects who were above a median split on both the ADHD and the CD scales were more than six times more likely to develop alcohol dependence than subjects who scored below the median on both. Although the two childhood measures were correlated, a multiple regression showed that each independently predicted a measure of lifetime alcoholism severity. CONCLUSIONS: ADHD comorbid with CD was the strongest predictor of later alcohol dependence.},
affiliation = {Institute of Preventive Medicine, Center for Health and Society, Copenhagen University Hospital, Oster Sogade 18, 1.floor, DK-1357 Copenhagen K, Denmark. jk@ipm.regionh.dk},
number = {2},
pages = {169--77},
volume = {70},
year = {2009},
month = {Mar},
language = {eng},
keywords = {Diagnosis: Dual (Psychiatry), Follow-Up Studies, Fathers, Male, Conduct Disorder, Aging, Predictive Value of Tests, Adult, Genetic Predisposition to Disease, Longitudinal Studies, Attention Deficit Disorder with Hyperactivity, Risk Factors, Humans, Alcoholism},
date-added = {2010-01-07 11:23:29 +0100},
date-modified = {2010-01-07 11:23:29 +0100},
pmid = {19261228},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1252},
rating = {0}
}

@article{Li:2009p1538,
author = {Jiuyong Li and Ada Wai-chee Fu and Paul Fahey},
journal = {Artif Intell Med},
title = {Efficient discovery of risk patterns in medical data},
abstract = {OBJECTIVE: This paper studies a problem of efficiently discovering risk patterns in medical data. Risk patterns are defined by a statistical metric, relative risk, which has been widely used in epidemiological research. METHODS: To avoid fruitless search in the complete exploration of risk patterns, we define optimal risk pattern set to exclude superfluous patterns, i.e. complicated patterns with lower relative risk than their corresponding simpler form patterns. We prove that mining optimal risk pattern sets conforms an anti-monotone property that supports an efficient mining algorithm. We propose an efficient algorithm for mining optimal risk pattern sets based on this property. We also propose a hierarchical structure to present discovered patterns for the easy perusal by domain experts. RESULTS: The proposed approach is compared with two well-known rule discovery methods, decision tree and association rule mining approaches on benchmark data sets and applied to a real world application. The proposed method discovers more and better quality risk patterns than a decision tree approach. The decision tree method is not designed for such applications and is inadequate for pattern exploring. The proposed method does not discover a large number of uninteresting superfluous patterns as an association mining approach does. The proposed method is more efficient than an association rule mining method. A real world case study shows that the method reveals some interesting risk patterns to medical practitioners. CONCLUSION: The proposed method is an efficient approach to explore risk patterns. It quickly identifies cohorts of patients that are vulnerable to a risk outcome from a large data set. The proposed method is useful for exploratory study on large medical data to generate and refine hypotheses. The method is also useful for designing medical surveillance systems.},
affiliation = {School of Computer and Information Science, University of South Australia, Mawson Lakes, Adelaide 5095, South Australia, Australia. jiuyong.li@unisa.edu.au},
number = {1},
pages = {77--89},
volume = {45},
year = {2009},
month = {Jan},
language = {eng},
keywords = {Male, Female, Decision Trees, Middle Aged, Algorithms, Adult, Humans, Risk Assessment},
date-added = {2010-01-07 16:21:40 +0100},
date-modified = {2010-07-29 19:17:26 +0200},
doi = {10.1016/j.artmed.2008.07.008},
pii = {S0933-3657(08)00090-0},
pmid = {18783927},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Li-2009-Artif%20Intell%20Med_Efficient%20discovery.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1538},
rating = {0}
}

@techreport{Antonietti:2006,
author = {J-P Antonietti},
journal = {Techreport},
title = {Mesures objectives de traits latents},
affiliation = {Institut de Math{\'e}matiques Appliqu{\'e}es},
year = {2006},
month = {Nov},
date-added = {2010-01-10 11:33:20 +0100},
date-modified = {2010-01-10 11:33:25 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Antonietti-2006-Techreport_Mesures%20objectives%20d.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1993},
rating = {0}
}

@article{Crawford:2009p3274,
author = {A V Crawford and S B Green and R Levy},
journal = {AERA},
title = {Evaluation of Parallel Analysis Methods for Determining the Number of Factors},
abstract = {Population and sample simulation approaches were used to compare the performance of parallel
analysis using principal component analysis (PA-PCA) and parallel analysis using principal axis factoring (PA-PAF) to identify the number of underlying factors. Additionally, the accuracy of the mean eigenvalue and the 95th percentile eigenvalue criteria was examined. PA-PCA tended to perform as well or better than PA-PAF for models with zero factors, one factor, or multiple uncorrelated factors. PA-PAF generally outperformed PA-PCA to the extent that factors were correlated or strong general factor(s) as well as group factors were present. The 95th percentile criterion was preferable for assessing the first eigenvalue, while the mean eigenvalue criterion tended to perform as well or better for subsequent eigenvalues.},
year = {2009},
date-added = {2010-01-14 21:07:44 +0100},
date-modified = {2010-01-14 21:08:26 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Crawford-2009-AERA_Evaluation%20of%20Parall.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3274},
rating = {0}
}

@article{Jacobs:2009p914,
author = {Kevin B Jacobs and Meredith Yeager and Sholom Wacholder and David Craig and Peter Kraft and David J Hunter and Justin Paschal and Teri A Manolio and Margaret Tucker and Robert N Hoover and Gilles D Thomas and Stephen J Chanock and Nilanjan Chatterjee},
journal = {Nat Genet},
title = {A new statistic and its power to infer membership in a genome-wide association study using genotype frequencies},
abstract = {Aggregate results from genome-wide association studies (GWAS), such as genotype frequencies for cases and controls, were until recently often made available on public websites because they were thought to disclose negligible information concerning an individual's participation in a study. Homer et al. recently suggested that a method for forensic detection of an individual's contribution to an admixed DNA sample could be applied to aggregate GWAS data. Using a likelihood-based statistical framework, we developed an improved statistic that uses genotype frequencies and individual genotypes to infer whether a specific individual or any close relatives participated in the GWAS and, if so, what the participant's phenotype status is. Our statistic compares the logarithm of genotype frequencies, in contrast to that of Homer et al., which is based on differences in either SNP probe intensity or allele frequencies. We derive the theoretical power of our test statistics and explore the empirical performance in scenarios with varying numbers of randomly chosen or top-associated SNPs.},
number = {11},
pages = {1253--7},
volume = {41},
year = {2009},
month = {Nov},
language = {eng},
keywords = {Sensitivity and Specificity, Genotype, Models: Statistical, Likelihood Functions, Models: Genetic, Humans, Polymorphism: Single Nucleotide, Genome-Wide Association Study},
date-added = {2010-01-03 19:00:32 +0100},
date-modified = {2010-01-03 19:00:32 +0100},
doi = {10.1038/ng.455},
pii = {ng.455},
pmid = {19801980},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Jacobs-2009-Nat%20Genet_A%20new%20statistic%20and.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p914},
rating = {0}
}

@article{Jorgenson:2006p3916,
author = {Eric Jorgenson and John S Witte},
journal = {Am J Hum Genet},
title = {Coverage and power in genomewide association studies},
abstract = {The ability of genomewide association studies to decipher genetic traits is driven in part by how well the measured single-nucleotide polymorphisms "cover" the unmeasured causal variants. Estimates of coverage based on standard linkage-disequilibrium measures, such as the average maximum squared correlation coefficient (r2), can lead to inaccurate and inflated estimates of the power of genomewide association studies. In contrast, use of the "cumulative r2 adjusted power" measure presented here gives more-accurate estimates of power for genomewide association studies.},
affiliation = {Department of Epidemiology and Biostatistics, Center for Human Genetics, University of California-San Francisco, San Francisco, CA 94143-0794, USA. jorg@itsa.ucsf.edu},
number = {5},
pages = {884--8},
volume = {78},
year = {2006},
month = {May},
language = {eng},
keywords = {Genome: Human, Quantitative Trait: Heritable, Linkage Disequilibrium, Genetic Variation, Chromosome Mapping, Humans, Polymorphism: Single Nucleotide, Models: Statistical},
date-added = {2010-01-16 21:05:14 +0100},
date-modified = {2010-01-16 21:05:15 +0100},
doi = {10.1086/503751},
pii = {S0002-9297(07)63822-1},
pmid = {16642443},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3916},
rating = {3}
}

@article{deLeeuw:2010p4265,
author = {Jan de Leeuw and P Mair},
title = {Homogeneity Analysis in R: The Package homals},
abstract = {Homogeneity analysis combines maximizing the correlations between variables of a multivariate data set with that of optimal scaling. In this article we present methodological and practical issues of the R package homals which performs homogeneity analysis and various extensions. By setting rank constraints nonlinear principal component analysis can be performed. The variables can be partitioned into sets such that homogeneity analysis is extended to nonlinear canonical correlation analysis or to predictive models which emulate discriminant analysis and regression models. For each model the scale level of the variables can be taken into account by setting level constraints. All algorithms allow for missing values.},
date-added = {2010-01-23 21:27:59 +0100},
date-modified = {2010-07-29 20:45:39 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/de%20Leeuw--_Homogeneity%20Analysis.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4265},
rating = {0}
}

@article{Tenenhaus:1995p1547,
author = {M Tenenhaus and J P Gauchi and C M{\'e}nardo},
journal = {Revue de Statistique Appliqu{\'e}e},
title = {R{\'e}gression PLS et applications},
number = {1},
pages = {7--63},
volume = {43},
year = {1995},
date-added = {2010-01-07 16:32:05 +0100},
date-modified = {2010-01-07 16:32:48 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Tenenhaus-1995-Revue%20de%20Statistique%20Appliqu%C3%A9e_R%C3%A9gression%20PLS%20et%20ap.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1547},
rating = {0}
}

@article{Glas:2005p1746,
author = {C A W Glas and I Hendrawan},
journal = {Multivariate Behavioral Research},
title = {Testing Linear Models for Ability Parameters in Item Response Models},
abstract = {Methods for testing hypotheses concerning the regression parameters in linear mod- els for the latent person parameters in item response models are presented. Three tests are outlined: A likelihood ratio test, a Lagrange multiplier test and a Wald test. The tests are derived in a marginal maximum likelihood framework. They are explic- itly formulated for the 3-parameter logistic model, but it is shown that the approach applies to a broad class of item response models. Since the distributions of the test statistics are derived asymptotically, simulation studies were performed to assess the Type I error rates of the tests for small realistic sample sizes. Overall, the Type I error rates for the null hypothesis that a regression coefficient equals zero, were close to the nominal significance level. A number of power studies were conducted. It is ar- gued that on theoretical grounds the power of the Lagrange multiplier test might be less than the power of the other two tests, but this expectation was not corroborated.
The robustness of the tests to violation of the item response model was investi- gated with simulation studies of the power and Type I error rate. The results showed that the performance of the tests was acceptable in the cases where local independ- ence and the constancy of the discrimination parameters over treatment groups were violated to the same extent for all treatment groups. The simulation studies also showed that the tests were biased if local independence was violated for one of the treatment groups.},
number = {1},
pages = {25--51},
volume = {40},
year = {2005},
date-added = {2010-01-09 20:37:56 +0100},
date-modified = {2010-01-09 20:43:05 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Glas-2005-Multivariate%20Behavioral%20Research_Testing%20Linear%20Model.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1746},
rating = {0}
}

@article{Glas:2003p7441,
author = {Afina S Glas and Jeroen G Lijmer and Martin H Prins and Gouke J Bonsel and Patrick M M Bossuyt},
journal = {Journal of Clinical Epidemiology},
title = {The diagnostic odds ratio: a single indicator of test performance},
abstract = {Diagnostic testing can be used to discriminate subjects with a target disorder from subjects without it. Several indicators of diagnostic performance have been proposed, such as sensitivity and specificity. Using paired indicators can be a disadvantage in comparing the performance of competing tests, especially if one test does not outperform the other on both indicators. Here we propose the use of the odds ratio as a single indicator of diagnostic performance. The diagnostic odds ratio is closely linked to existing indicators, it facilitates formal meta-analysis of studies on diagnostic test performance, and it is derived from logistic models, which allow for the inclusion of additional variables to correct for heterogeneity. A disadvantage is the impossibility of weighing the true positive and false positive rate separately. In this article the application of the diagnostic odds ratio in test evaluation is illustrated.},
affiliation = {Department of Clinical Epidemiology {\&} Biostatistics, University of Amsterdam, Academic Medical Center, Post Office Box 22700, 100 DE Amsterdam, The Netherlands. a.s.glas@amc.uva.nl},
number = {11},
pages = {1129--35},
volume = {56},
year = {2003},
month = {Nov},
language = {eng},
keywords = {Diagnosis, Sensitivity and Specificity, Predictive Value of Tests, Humans, Logistic Models, Odds Ratio, Meta-Analysis as Topic},
date-added = {2010-03-10 20:40:19 +0100},
date-modified = {2010-03-10 20:40:20 +0100},
pii = {S089543560300177X},
pmid = {14615004},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Glas-2003-Journal%20of%20Clinical%20Epidemiology_The%20diagnostic%20odds.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7441},
rating = {0}
}

@article{Cleveland:1988p10912,
author = {W S Cleveland and S J Devlin},
journal = {JAMA},
title = {Locally Weighted Regression: An Approach to Regression Analysis by Local Fitting},
number = {403},
pages = {596--610},
volume = {83},
year = {1988},
date-added = {2010-04-11 21:37:32 +0200},
date-modified = {2010-07-29 20:01:35 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Cleveland-1988-JAMA_Locally%20Weighted%20Reg.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p10912},
rating = {0}
}

@article{Spycher:2009p2980,
author = {B D Spycher and C E Minder and C E Kuehni},
journal = {Stat Med},
title = {Multivariate modelling of responses to conditional items: New possibilities for latent class analysis},
abstract = {Questionnaire data may contain missing values because certain questions do not apply to all respondents. For instance, questions addressing particular attributes of a symptom, such as frequency, triggers or seasonality, are only applicable to those who have experienced the symptom, while for those who have not, responses to these items will be missing. This missing information does not fall into the category 'missing by design', rather the features of interest do not exist and cannot be measured regardless of survey design. Analysis of responses to such conditional items is therefore typically restricted to the subpopulation in which they apply. This article is concerned with joint multivariate modelling of responses to both unconditional and conditional items without restricting the analysis to this subpopulation. Such an approach is of interest when the distributions of both types of responses are thought to be determined by common parameters affecting the whole population. By integrating the conditional item structure into the model, inference can be based both on unconditional data from the entire population and on conditional data from subjects for whom they exist. This approach opens new possibilities for multivariate analysis of such data. We apply this approach to latent class modelling and provide an example using data on respiratory symptoms (wheeze and cough) in children. Conditional data structures such as that considered here are common in medical research settings and, although our focus is on latent class models, the approach can be applied to other multivariate models.},
affiliation = {Institute of Social and Preventive Medicine, University of Bern, Finkenhubelweg 11, Bern, Switzerland. bspycher@ispm.unibe.ch},
number = {14},
pages = {1927--39},
volume = {28},
year = {2009},
month = {Jun},
language = {eng},
keywords = {Respiratory Sounds, Phenotype, Child, Cough, Questionnaires, Infant, Effect Modifiers (Epidemiology), Likelihood Functions, Data Interpretation: Statistical, Classification, Skin Tests, Common Cold, Humans, Models: Statistical, Algorithms, Child: Preschool, Multivariate Analysis},
date-added = {2010-01-13 23:13:14 +0100},
date-modified = {2010-01-13 23:13:14 +0100},
doi = {10.1002/sim.3550},
pmid = {19205074},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Spycher-2009-Stat%20Med_Multivariate%20modelli.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2980},
rating = {0}
}

@article{Grove:2005p13813,
author = {William M Grove},
journal = {J Clin Psychol},
title = {Clinical versus statistical prediction: the contribution of Paul E. Meehl},
abstract = {The background of Paul E. Meehl's work on clinical versus statistical prediction is reviewed, with detailed analyses of his arguments. Meehl's four main contributions were the following: (a) he put the question, of whether clinical or statistical combinations of psychological data yielded better predictions, at center stage in applied psychology; (b) he convincingly argued, against an array of objections, that clinical versus statistical prediction was a real (not concocted) problem needing thorough study; (c) he meticulously and even-handedly dissected the logic of clinical inference from theoretical and probabilistic standpoints; and (c) he reviewed the studies available in 1954 and thereafter, which tested the validity of clinical versus statistical predictions. His early conclusion that the literature strongly favors statistical prediction has stood up extremely well, and his conceptual analyses of the prediction problem (especially his defense of applying aggregate-based probability statements to individual cases) have not been significantly improved since 1954.},
affiliation = {University of Minnesota, Twin Cities Campus. MN 55455-0344, USA. groove001@umn.edu},
number = {10},
pages = {1233--43},
volume = {61},
year = {2005},
month = {Oct},
language = {eng},
keywords = {Minnesota, Statistics as Topic, Humans, Psychology: Clinical, History: 20th Century, Forecasting, United States},
date-added = {2010-07-29 12:37:55 +0200},
date-modified = {2010-07-29 12:37:55 +0200},
doi = {10.1002/jclp.20179},
pmid = {16041780},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13813},
rating = {0}
}

@misc{Holmes:2005,
author = {S Holmes},
journal = {Miscellaneous},
title = {Multivariate data analysis: The french way},
year = {2005},
date-added = {2010-01-10 11:33:20 +0100},
date-modified = {2010-01-10 11:33:25 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Holmes-2005-Miscellaneous_Multivariate%20data%20an.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2056},
rating = {0}
}

@article{Strauss:2009p5938,
author = {Milton E Strauss and Gregory T Smith},
journal = {Annual review of clinical psychology},
title = {Construct validity: advances in theory and methodology},
abstract = {Measures of psychological constructs are validated by testing whether they relate to measures of other constructs as specified by theory. Each test of relations between measures reflects on the validity of both the measures and the theory driving the test. Construct validation concerns the simultaneous process of measure and theory validation. In this article, we review the recent history of validation efforts in clinical psychological science that has led to this perspective, and we review the following recent advances in validation theory and methodology of importance for clinical researchers. These are: the emergence of nonjustificationist philosophy of science; an increasing appreciation for theory and the need for informative tests of construct validity; valid construct representation in experimental psychopathology; the need to avoid representing multidimensional constructs with a single score; and the emergence of effective new statistical tools for the evaluation of convergent and discriminant validity.},
affiliation = {Department of Psychology, University of New Mexico, Albuquerque, New Mexico 87131-0001, USA. milton.strauss@gmail.com},
pages = {1--25},
volume = {5},
year = {2009},
month = {Jan},
language = {eng},
keywords = {Humans, Psychology: Clinical, Biomedical Research, Models: Psychological, Psychological Theory},
date-added = {2010-02-18 23:16:07 +0100},
date-modified = {2010-02-18 23:16:07 +0100},
doi = {10.1146/annurev.clinpsy.032408.153639},
pii = {10.1146/annurev.clinpsy.032408.153639},
pmid = {19086835},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Strauss-2009-Annual%20review%20of%20clinical%20psychology_Construct%20validity.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5938},
rating = {0}
}

@article{Mewton:2010p10668,
author = {Louise Mewton and Maree Teesson and Tim Slade},
journal = {Addict Behav},
title = {"Youthful epidemic" or diagnostic bias? Differential item functioning of DSM-IV cannabis use criteria in an Australian general population survey},
abstract = {BACKGROUND: Prevalence rates of cannabis abuse and dependence are higher for younger adults when compared with older adults. It is necessary to examine the performance of criteria across age groups to establish whether these differences in prevalence rates are a result of diagnostic bias. The current study aims to investigate whether there is any age-related differential item functioning in the DSM-IV diagnostic criteria for cannabis use disorders using an item response theory approach. METHOD: The sample consisted of 10,641 participants in a population-based survey of Australian adults aged 18 years and older. DSM-IV cannabis use disorders were assessed in all respondents who had used cannabis more than five times in the previous twelve months (n=722). Age-based differential item functioning was assessed in each of the DSM-IV criteria for cannabis use disorders. RESULTS: Age-based differential item functioning was only detected in the Hazard criterion of the DSM-IV cannabis use disorders. The Hazard criterion was found to be more discriminating for those aged 18-24 when compared with those aged 25 and over. CONCLUSIONS: The DSM-IV criteria for cannabis use disorders appear to function similarly across age groups. Differential item functioning was only detected in the alpha parameter for the Hazard criterion. These results are discussed with regard to implications for future editions of the DSM system.},
affiliation = {National Drug and Alcohol Research Centre, University of New South Wales, NSW 2052, Australia. louisem@unsw.edu.au},
number = {5},
pages = {408--13},
volume = {35},
year = {2010},
month = {May},
language = {eng},
date-added = {2010-04-07 11:48:06 +0200},
date-modified = {2010-07-29 19:12:35 +0200},
doi = {10.1016/j.addbeh.2009.12.001},
pii = {S0306-4603(09)00324-4},
pmid = {20071097},
URL = {http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VC9-4XY4K4J-1&_user=2432700&_coverDate=05%252F31%252F2010&_rdoc=1&_fmt=high&_orig=search&_sort=d&_docanchor=&view=c&_acct=C000057263&_version=1&_urlVersion=0&_userid=2432700&md5=67921bf421972730b7ed6c38ed472b5b},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Mewton-2010-Addict%20Behav_%22Youthful%20epidemic%22.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p10668},
rating = {4}
}

@article{Rossier:2007p8318,
author = {J{\'e}r{\^o}me Rossier and Anton Aluja and Luis F Garc{\'\i}a and Alois Angleitner and Vilfredo De Pascalis and Wei Wang and Michael Kuhlman and Marvin Zuckerman},
journal = {J Pers Assess},
title = {The cross-cultural generalizability of Zuckerman's alternative five-factor model of personality},
abstract = {The aim of this study was to analyze the cross-cultural generalizability of the Alternative five-factor model (AFFM; Zuckerman, Kuhlman, {\&} Camac, 1988). The total sample was made up of 9,152 subjects from six countries: China, Germany, Italy, Spain, Switzerland, and the United States. The internal consistencies for all countries were generally similar to those found for the normative American sample. Factor analyses within cultures showed that the normative American structure was replicated in all cultures; however, the congruence coefficients were slightly lower in China and Italy. A similar analysis at the facet level confirmed the high cross-cultural replicability of the AFFM. Mean-level comparisons did not always show the hypothesized effects. The mean score differences across countries were very small.},
affiliation = {Institute of Psychology, University of Lausanne, Switzerland. Jerome.Rossier@unil.ch},
number = {2},
pages = {188--96},
volume = {89},
year = {2007},
month = {Oct},
language = {eng},
keywords = {Reproducibility of Results, Cross-Cultural Comparison, Humans, Switzerland, Germany, Spain, Personality Assessment, Psychometrics, Questionnaires, Female, Italy, Adult, Models: Psychological, China, Psychiatric Status Rating Scales, United States, Personality Inventory, Personality, Factor Analysis: Statistical, Male},
date-added = {2010-03-20 20:11:27 +0100},
date-modified = {2010-03-20 20:11:27 +0100},
doi = {10.1080/00223890701468618},
pmid = {17764395},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8318},
rating = {0}
}

@book{Tourangeau:2000,
author = {R Tourangeau and LJ Rips and K Rasinski},
journal = {Book},
title = {The psychology of survey response},
year = {2000},
date-added = {2010-01-03 19:34:17 +0100},
date-modified = {2010-07-29 19:21:41 +0200},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p961},
rating = {0}
}

@article{DesJarlais:2004p9369,
author = {Don C Des Jarlais and Cynthia Lyles and Nicole Crepaz and TREND Group},
journal = {Am J Public Health},
title = {Improving the reporting quality of nonrandomized evaluations of behavioral and public health interventions: the TREND statement},
abstract = {Developing an evidence base for making public health decisions will require using data from evaluation studies with randomized and nonrandomized designs. Assessing individual studies and using studies in quantitative research syntheses require transparent reporting of the study, with sufficient detail and clarity to readily see differences and similarities among studies in the same area. The Consolidated Standards of Reporting Trials (CONSORT) statement provides guidelines for transparent reporting of randomized clinical trials. We present the initial version of the Transparent Reporting of Evaluations with Nonrandomized Designs (TREND) statement. These guidelines emphasize the reporting of theories used and descriptions of intervention and comparison conditions, research design, and methods of adjusting for possible biases in evaluation studies that use nonrandomized designs.},
affiliation = {Baron Edmond de Rothschild Chemical Dependency Institute, Beth Israel Medical Center, New York City, USA. dcdesjarla@aol.com},
number = {3},
pages = {361--6},
volume = {94},
year = {2004},
month = {Mar},
language = {eng},
keywords = {Epidemiologic Research Design, Decision Making, Program Evaluation, Intervention Studies, Behavioral Research, Information Dissemination, Humans, Evidence-Based Medicine, Quality Control, Publishing, Public Health Practice, Periodicals as Topic},
date-added = {2010-03-23 18:42:00 +0100},
date-modified = {2010-07-29 19:14:25 +0200},
pmid = {14998794},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Des%20Jarlais-2004-Am%20J%20Public%20Health_Improving%20the%20report.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p9369},
rating = {0}
}

@article{Niida:2010p13185,
author = {Atsushi Niida and Seiya Imoto and Rui Yamaguchi and Masao Nagasaki and Satoru Miyano},
journal = {PLoS ONE},
title = {Gene set-based module discovery decodes cis-regulatory codes governing diverse gene expression across human multiple tissues},
abstract = {Decoding transcriptional programs governing transcriptomic diversity across human multiple tissues is a major challenge in bioinformatics. To address this problem, a number of computational methods have focused on cis-regulatory codes driving overexpression or underexpression in a single tissue as compared to others. On the other hand, we recently proposed a different approach to mine cis-regulatory codes: starting from gene sets sharing common cis-regulatory motifs, the method screens for expression modules based on expression coherence. However, both approaches seem to be insufficient to capture transcriptional programs that control gene expression in a subset of all samples. Especially, this limitation would be serious when analyzing multiple tissue data. To overcome this limitation, we developed a new module discovery method termed BEEM (Biclusering-based Extraction of Expression Modules) in order to discover expression modules that are functional in a subset of tissues. We showed that, when applied to expression profiles of human multiple tissues, BEEM finds expression modules missed by two existing approaches that are based on the coherent expression and the single tissue-specific differential expression. From the BEEM results, we obtained new insights into transcriptional programs controlling transcriptomic diversity across various types of tissues. This study introduces BEEM as a powerful tool for decoding regulatory programs from a compendium of gene expression profiles.},
affiliation = {Human Genome Center, Institute of Medical Science, University of Tokyo, Tokyo, Japan. aniida@ims.u-tokyo.ac.jp},
number = {6},
pages = {e10910},
volume = {5},
year = {2010},
month = {Jan},
language = {eng},
date-added = {2010-06-26 11:20:39 +0200},
date-modified = {2010-06-26 11:20:39 +0200},
doi = {10.1371/journal.pone.0010910},
pmid = {20544005},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Niida-2010-PLoS%20ONE_Gene%20set-based%20modul.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13185},
rating = {0}
}

@article{Santos:2007p13988,
author = {In{\'a} S Santos and Alicia Matijasevich and Beatriz Franck Tavares and Alu{\'\i}sio J D Barros and Iara Picinini Botelho and Catherine Lapolli and Pedro Vieira da Silva Magalh{\~a}es and Ana Paula Pereira Neto Barbosa and Fernando C Barros},
journal = {Cad Saude Publica},
title = {Validation of the Edinburgh Postnatal Depression Scale (EPDS) in a sample of mothers from the 2004 Pelotas Birth Cohort Study},
abstract = {The aim of this study was to evaluate the Edinburgh Postnatal Depression Scale (EPDS) for screening and diagnosis of postpartum depression. Three months after delivery, EPDS was administered to 378 mothers from the 2004 Pelotas Birth Cohort Study, Rio Grande do Sul State, Brazil. Up to 15 days later, mothers were re-interviewed by mental health care professionals using a semi-structured interview based on ICD-10 (gold standard). We calculated the sensitivity and specificity of each cutoff point, and values were plotted as a receiver operator characteristic curve. The best cutoff point for screening postpartum depression was > 10, with 82.6% (75.3-89.9%) sensitivity and 65.4% (59.8-71.1%) specificity. For screening moderate and severe cases, the best cutoff point was > 11, with 83.8% (73.4-91.3%) sensitivity and 74.7% (69.4-79.5%) specificity. For diagnosis, EPDS was valid only for prevalence of postpartum depression in the 20-25% range, with 60% PPV for the > 13 cutoff point (59.5% sensitivity; 88.4% specificity). The specificities and PPVs for all cutoff points were below those reported by other authors. Small numbers and the calculation of PPV in samples with overrepresentation of cases in the majority of studies appear to account for these differences.},
affiliation = {Faculdade de Medicina, Universidade Federal de Pelotas, Avenida Duque de Caxias 250, Pelotas, RS, Brazil.},
number = {11},
pages = {2577--88},
volume = {23},
year = {2007},
month = {Nov},
language = {eng},
keywords = {Humans, Questionnaires, Brazil, Socioeconomic Factors, Female, Sensitivity and Specificity, Mass Screening, Adult, Mothers, Cross-Sectional Studies, Mental Status Schedule, Depression: Postpartum},
date-added = {2010-08-04 09:19:48 +0200},
date-modified = {2010-08-04 09:19:49 +0200},
pii = {S0102-311X2007001100005},
pmid = {17952250},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Santos-2007-Cad%20Saude%20Publica_Validation%20of%20the%20Ed.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13988},
rating = {0}
}

@article{Kvam:2010p14046,
author = {Ann K Kvam and Finn Wisloff and Peter M Fayers},
journal = {Health Qual Life Outcomes},
title = {Minimal important differences and response shift in health-related quality of life; a longitudinal study in patients with multiple myeloma},
abstract = {ABSTRACT: BACKGROUND: We previously reported that changes of 6-17 percent in the EORTC QLQ-C30 scores are considered important by patients with multiple myeloma and thus may be considered as Minimal Important Differences (MIDs). However, patients' internal standard of measurement may have changed over time (response shift, RS). In the present work, we evaluated whether myeloma patients experience RS and if this could affect the MID-estimates. METHODS: Between 2006 and 2008, 239 patients with multiple myeloma completed the EORTC QLQ-C30 at inclusion (T1) and after three months (T2). At T2, patients were asked if they had noticed any change in the domains pain, fatigue, physical function and global quality of life. They were also asked to give a retrospective judgment of their health-related quality of life at T1 for the four domains. RESULTS: We found clear evidence of RS in myeloma patients. However, there were differences in both magnitude and direction between patients who stated that they improved and those who deteriorated. Deteriorating patients retrospectively reported better health-related quality of life at T1 for the domains pain, fatigue and physical function. In these patients, MIDs adjusted for RS were observed to increase up to 12 percentage points. In contrast, for patients stating that they improved, we only found evidence of statistically significant RS in global quality of life. CONCLUSIONS: MIDs estimated from pre-test/post-test data appeared to be robust against RS in patients reporting improvement over 3-months. This could indicate that RS has a minimal impact on the results in patients who respond to treatment, and that RS may not have an important impact on interpretation of changes reported in clinical trials where an improvement occurs. Although the effect sizes of the RSs were small, RS in deteriorating patients may have an important impact on the interpretation of changes reported in clinical trials. Trial registration: The study is registered at clinicaltrials.gov, identifier NCT00290095.},
number = {1},
pages = {79},
volume = {8},
year = {2010},
month = {Aug},
language = {ENG},
date-added = {2010-08-10 12:43:51 +0200},
date-modified = {2010-08-10 12:43:51 +0200},
doi = {10.1186/1477-7525-8-79},
pii = {1477-7525-8-79},
pmid = {20678240},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Kvam-2010-Health%20Qual%20Life%20Outcomes_Minimal%20important%20di.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p14046},
rating = {0}
}

@article{Tavano:2009p5154,
author = {Alessandro Tavano and Renato Borgatti},
journal = {Cortex},
title = {Evidence for a link among cognition, language and emotion in cerebellar malformations},
abstract = {We compared the neurobehavioral profiles of children with Joubert syndrome (JS participants), a rare autosomal recessive condition characterized on magnetic resonance imaging (MRI) by hypoplasia of the cerebellar vermis and midbrain-hindbrain malformations, and children with malformations confined to the cerebellar vermis and one or both hemispheres (Cerebellar malformations - CM participants). We aimed at investigating the influence of anatomo-clinical similarities (vermian malformation) and differences (intact cerebellar hemispheres vs sparing of the pons, respectively) with respect to cognitive, linguistic and emotional development, assuming as a reference framework the Cerebellar Cognitive Affective Syndrome (CCAS). Results show that severe to moderate mental retardation is infrequent in JS children, while it is present in more than half the sample of CM children. Affect development was generally preserved in JS, in high-functioning CM individuals and also in some of the CM children with moderate mental retardation, which raised questions as to the role of a cerebellar vermis lesion in determining affect disorders. Further, cognitive and linguistic profiles on both intellectual and neuropsychological evaluations provided evidence for distinct patterns of peaks and valleys in the two groups, with JS children being significantly more impaired in language and verbal working memory and CM individuals showing a significant impairment of executive functions and emotional development. The overall evidence provides support for an important role of cerebellar structures per se in shaping emotional, cognitive and linguistic development, when vermian lesions are associated to cerebellar hemispheric lesions. Cerebellar vermis and brainstem lesions instead appear to have a major impact on motor-related skills, including oro-motor abilities and verbal working memory.},
affiliation = {"Eugenio Medea" Scientific Institute, Department of Child Neuropsychiatry and Neurorehabilitation, Bosisio Parini (LC), Italy.},
pages = {},
year = {2009},
month = {Sep},
language = {ENG},
date-added = {2010-02-05 20:19:43 +0100},
date-modified = {2010-02-05 20:19:44 +0100},
doi = {10.1016/j.cortex.2009.07.017},
pii = {S0010-9452(09)00258-5},
pmid = {19857864},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5154},
rating = {0}
}

@article{Cella:1996p9555,
author = {D F Cella and N L McCain and A H Peterman and F Mo and D Wolen},
journal = {Qual Life Res},
title = {Development and validation of the Functional Assessment of Human Immunodeficiency Virus Infection (FAHI) quality of life instrument},
abstract = {The Functional Assessment of Human Immuno-deficiency Virus (HIV) Infection (FAHI) quality of life instrument was developed using a combination of conceptual and empirical strategies. The core, general health-related quality of life instrument is the Functional Assessment of Cancer Therapy-General (FACT-G) questionnaire. The FACT-G was selected to enable comparison of data across two similar, life-threatening conditions and because of its desirable psychometric properties. Initial data on both the relevance (applicability) of the FACT-G to the HIV population and the generation and testing of questions for an HIV-specific subscale were encouraging. Consequently, the FACT-G and a 9-item HIV-specific subscale were combined and tested in 196 patients in three categories: an English-speaking stress management sample from Chicago, illinois (n = 110); an English-speaking urban, mixed race sample from Chicago (n = 71); and a Spanish-speaking urban sample from Chicago and San Juan, Puerto Rico (n = 64). With the exception of the Social Well-being subscale, the subscales of the FACT-G demonstrated good internal consistency reliability across all three samples (alpha range = 0.72-0.88). Total FAHI scores produced consistently high alpha coefficients (0.89-0.91). Concurrent validity data included moderately strong associations with other measures of similar concepts and an ability to distinguish groups of patients by activity level and disease severity. Sensitivity to change in mood disturbance and responsiveness to a stress management intervention were also evident. The 9-item HIV-specific subscale demonstrated relatively low alpha coefficients (range = 0.53-0.71) and marginal sensitivity to change, leading to supplementation of content with an additional 11 items, creating a 20-item HIV-specific subscale that is currently being tested. Clinical trial and clinical practice investigators are encouraged to use the FACT-G in its current (version 3) form when evaluating group differences and within-group change over time. It should prove particularly useful when comparing clinical trial and clinical practice data for cancer vs. HIV-infected patients and in the evaluation of treatments for HIV disease and HIV-related malignancy. The supplemental 20 questions comprising the revised HIV-specific subscale are undergoing further testing, and may ultimately enhance the value of this measurement system.},
affiliation = {Division of Psychosocial Oncology, Rush-Presbyterian-St. Luke's Medical Center, Chicago, IL 60612, USA.},
number = {4},
pages = {450--63},
volume = {5},
year = {1996},
month = {Aug},
language = {eng},
keywords = {Female, HIV Infections, Quality of Life, Middle Aged, Adult, Aged, Humans, Health Status Indicators, Questionnaires, Male, Adolescent, Reproducibility of Results},
date-added = {2010-03-23 20:51:04 +0100},
date-modified = {2010-07-29 19:48:29 +0200},
pmid = {8840825},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p9555},
rating = {0}
}

@article{Trepalin:2008p515,
author = {Sergei V Trepalin and Alexander V Yarkov},
journal = {Algorithms},
title = {Hierarchical Clustering of Large Databases and Classification of Antibiotics at High Noise Levels},
abstract = {A new algorithm for divisive hierarchical clustering of chemical compounds based on 2D structural fragments is suggested. The algorithm is deterministic, and given a random ordering of the input, will always give the same clustering and can process a database up to 2 million records on a standard PC. The algorithm was used for classification of 1,183 antibiotics mixed with 999,994 random chemical structures. Similarity threshold, at which best separation of active and non active compounds took place, was estimated as 0.6. 85.7% of the antibiotics were successfully classified at this threshold with 0.4% of inaccurate compounds. A .sdf file was created with the probe molecules for clustering of external databases.},
affiliation = {Institute of Physiologically Active Compounds, Russian Academy of Sciences, 142432, Chernogolovka, Moscow Region, Russia},
pages = {183--200},
volume = {1},
year = {2008},
keywords = {algorithm, classification of antibiotics, Molecular structure, hierarchical clustering},
date-added = {2010-01-03 13:07:47 +0100},
date-modified = {2010-01-03 13:10:01 +0100},
doi = {10.3390/a1020183},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Trepalin-2008-Algorithms_Hierarchical%20Cluster.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p515},
rating = {0}
}

@article{Chachamovich:2009p6381,
author = {Eduardo Chachamovich and Marcelo P Fleck and Mick Power},
journal = {Journal of Clinical Epidemiology},
title = {Literacy affected ability to adequately discriminate among categories in multipoint Likert Scales},
abstract = {OBJECTIVES: To assess the effect of inability to read on a five-point Likert scale, using the WHOQOL-BREF response scale. It is hypothesized that inability to read is related to loss of discriminant power among the five-category response scale. STUDY DESIGN AND SETTING: In a cross-sectional design, nonreaders (n=141) and subjects educated at a graduate level (n-907) were assessed. Statistical analyses combined classic and modern psychometric approaches (Confirmatory factor analysis and Rasch analysis). RESULTS: There is a remarkable difference in the psychometric performance of items across the two subgroups. Fit indexes proved to be closer to the ideal for the graduate group, but not for the nonreader group. Reducing the number of response categories improved the model exclusively for the nonreader sample. Nonreaders do not interpret the scale as a true five-category scale, but exhibit a response pattern indicative that only three categories are in fact considered. CONCLUSION: These results confirm the hypothesis that a multiple-category response scale is not suitable for nonreaders. They suggest that a simpler response scale should be adopted to achieve a more reliable and satisfactory psychometric performance in this population. This effect seems to be stronger when more abstract and subjective constructs are involved.},
affiliation = {Post-Graduate Program on Psychiatry, University Federal of Rio Grande do Sul, Rua Florencio Ygartua, 391/308, Porto Alegre - RS, CEP 90430-010, Brazil. echacha.ez@terra.com.br},
number = {1},
pages = {37--46},
volume = {62},
year = {2009},
month = {Jan},
language = {eng},
keywords = {World Health, Aged: 80 and over, Humans, Factor Analysis: Statistical, Aptitude, Aged, Reading, Psychometrics, Cross-Cultural Comparison, Female, Male, Cross-Sectional Studies, Questionnaires, Educational Status, Middle Aged},
date-added = {2010-02-23 08:22:42 +0100},
date-modified = {2010-02-23 08:22:42 +0100},
doi = {10.1016/j.jclinepi.2008.03.002},
pii = {S0895-4356(08)00064-4},
pmid = {18619806},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Chachamovich-2009-Journal%20of%20Clinical%20Epidemiology_Literacy%20affected%20ab.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6381},
rating = {4}
}

@article{Smyth:1996p823,
author = {P Smyth},
journal = {Proceedings of the Second International Conference on Knowledge Discovery and Data Mining (KDD-96)},
title = {Clustering using Monte-Carlo cross-validation},
pages = {126--133},
year = {1996},
date-added = {2010-01-03 17:45:36 +0100},
date-modified = {2010-01-03 17:47:10 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Smyth-1996-Proceedings%20of%20the%20Second%20International%20Conference%20on%20Knowledge%20Discovery%20and%20Data%20Mining%20(KDD-96)_Clustering%20using%20Mon.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p823},
rating = {0}
}

@article{Hrisos:2009p6428,
author = {Susan Hrisos and Martin P Eccles and Jill J Francis and Marije Bosch and Rob Dijkstra and Marie Johnston and Richard Grol and Eileen F S Kaner and Ian N Steen},
journal = {BMC Health Serv Res},
title = {Using psychological theory to understand the clinical management of type 2 diabetes in Primary Care: a comparison across two European countries},
abstract = {BACKGROUND: Long term management of patients with Type 2 diabetes is well established within Primary Care. However, despite extensive efforts to implement high quality care both service provision and patient health outcomes remain sub-optimal. Several recent studies suggest that psychological theories about individuals' behaviour can provide a valuable framework for understanding generalisable factors underlying health professionals' clinical behaviour. In the context of the team management of chronic disease such as diabetes, however, the application of such models is less well established. The aim of this study was to identify motivational factors underlying health professional teams' clinical management of diabetes using a psychological model of human behaviour. METHODS: A predictive questionnaire based on the Theory of Planned Behaviour (TPB) investigated health professionals' (HPs') cognitions (e.g., beliefs, attitudes and intentions) about the provision of two aspects of care for patients with diabetes: prescribing statins and inspecting feet.General practitioners and practice nurses in England and the Netherlands completed parallel questionnaires, cross-validated for equivalence in English and Dutch. Behavioural data were practice-level patient-reported rates of foot examination and use of statin medication. Relationships between the cognitive antecedents of behaviour proposed by the TPB and healthcare teams' clinical behaviour were explored using multiple regression. RESULTS: In both countries, attitude and subjective norm were important predictors of health professionals' intention to inspect feet (Attitude: beta = .40; Subjective Norm: beta = .28; Adjusted R2 = .34, p < 0.01), and their intention to prescribe statins (Attitude: beta = .44; Adjusted R2 = .40, p < 0.01). Individuals' self-reported intention did not predict practice-level performance of either clinical behaviour. CONCLUSION: Using the TPB, we identified modifiable factors underlying health professionals' intentions to perform two clinical behaviours, providing a rationale for the development of targeted interventions. However, we did not observe a relationship between health professionals' intentions and our proxy measure of team behaviour. Significant methodological issues were highlighted concerning the use of models of individual behaviour to explain behaviours performed by teams. In order to investigate clinical behaviours performed by teams it may be necessary to develop measures that reflect the collective cognitions of the members of the team to facilitate the application of these theoretical models to team behaviours.},
affiliation = {Institute of Health and Society, Newcastle University, Newcastle Upon Tyne, UK. susan.hrisos@ncl.ac.uk},
pages = {140},
volume = {9},
year = {2009},
month = {Jan},
language = {eng},
keywords = {Adult, Diabetes Mellitus: Type 2, Humans, Europe, Primary Health Care, Diabetic Foot, Hydroxymethylglutaryl-CoA Reductase Inhibitors, Psychological Theory, Health Personnel, Cross-Sectional Studies, Disease Management, Mass Screening, Aged: 80 and over},
date-added = {2010-02-23 08:27:38 +0100},
date-modified = {2010-02-23 08:27:38 +0100},
doi = {10.1186/1472-6963-9-140},
pii = {1472-6963-9-140},
pmid = {19656372},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6428},
rating = {0}
}

@article{Richardson:2005p12972,
author = {Alexandra J Richardson and Paul Montgomery},
journal = {Pediatrics},
title = {The Oxford-Durham study: a randomized, controlled trial of dietary supplementation with fatty acids in children with developmental coordination disorder},
abstract = {BACKGROUND: Developmental coordination disorder (DCD) affects approximately 5% of school-aged children. In addition to the core deficits in motor function, this condition is associated commonly with difficulties in learning, behavior, and psychosocial adjustment that persist into adulthood. Mounting evidence suggests that a relative lack of certain polyunsaturated fatty acids may contribute to related neurodevelopmental and psychiatric disorders such as dyslexia and attention-deficit/hyperactivity disorder. Given the current lack of effective, evidence-based treatment options for DCD, the use of fatty acid supplements merits investigation. METHODS: A randomized, controlled trial of dietary supplementation with omega-3 and omega-6 fatty acids, compared with placebo, was conducted with 117 children with DCD (5-12 years of age). Treatment for 3 months in parallel groups was followed by a 1-way crossover from placebo to active treatment for an additional 3 months. RESULTS: No effect of treatment on motor skills was apparent, but significant improvements for active treatment versus placebo were found in reading, spelling, and behavior over 3 months of treatment in parallel groups. After the crossover, similar changes were seen in the placebo-active group, whereas children continuing with active treatment maintained or improved their progress. CONCLUSIONS: Fatty acid supplementation may offer a safe efficacious treatment option for educational and behavioral problems among children with DCD. Additional work is needed to investigate whether our inability to detect any improvement in motor skills reflects the measures used and to assess the durability of treatment effects on behavior and academic progress.},
affiliation = {University Laboratory of Physiology, Parks Road, Oxford OX1 3PT, United Kingdom. alex.richardson@physiol.ox.ac.uk},
number = {5},
pages = {1360--6},
volume = {115},
year = {2005},
month = {May},
language = {eng},
keywords = {Dietary Supplements, Motor Skills, Motor Skills Disorders, Child Behavior, Cross-Over Studies, Child, Language Arts, Fatty Acids: Omega-3, Fatty Acids: Omega-6, Attention Deficit Disorder with Hyperactivity, Humans},
date-added = {2010-06-25 22:28:01 +0200},
date-modified = {2010-06-25 22:28:01 +0200},
doi = {10.1542/peds.2004-2164},
pii = {115/5/1360},
pmid = {15867048},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12972},
rating = {0}
}

@article{Bech:1997p6855,
author = {P Bech and K B Stage and N P Nair and J K Larsen and P Kragh-S{\o}rensen and A Gjerris},
journal = {J Affect Disord},
title = {The Major Depression Rating Scale (MDS). Inter-rater reliability and validity across different settings in randomized moclobemide trials. Danish University Antidepressant Group},
abstract = {The Major Depression Rating Scale (MDS) has been derived from the Hamilton Depression Scale and the Melancholia Scale. The MDS contains the nine DSM-IV items for major depression which all have anchoring scores from 0 to 4; hence, the theoretical score range is up to 36. The Major Depression Rating Scale has in this study been psychometrically analysed in randomized moclobemide trials. The results showed that the MDS had higher internal validity than the Hamilton Depression Scale. Thus, the homogeneity of the items was higher; factor analysis identified only one general depression factor (after 4 weeks of treatment explaining more than 50% of the variance). The inter-rater reliability of the two scales was of the same high level. The ability to measure changes (external validity) was tested in randomized clinical trials with moclobemide versus tricyclics (clomipramine and notriptyline) performed in Denmark in the psychiatric setting as well as in the general practice. The results showed that in the psychiatric setting tricyclics were superior to moclobemide with effect sizes ranging between 0.43 and 0.53. The highest effect size was obtained with the Melancholia Scale and the Major Depression Rating Scale, while the Hamilton Depression Scale was below 0.50. In the general practice setting no difference was found between moclobemide and clomipramine. In conclusion, the Major Depression Rating Scale has been found to have a more homogeneous factor structure than the Hamilton Depression Scale, but still with the same level of reliability and external validity. However, studies are needed to standardize the scale, especially in the general practice setting.},
affiliation = {Psychiatric Institute, Frederiksborg General Hospital, Hiller{\o}d, Denmark. slej@login.dknet.dk},
number = {1},
pages = {39--48},
volume = {42},
year = {1997},
month = {Jan},
language = {eng},
keywords = {Psychometrics, Moclobemide, Benzamides, Antidepressive Agents, Humans, Depressive Disorder, Clomipramine, Nortriptyline, Reproducibility of Results, Observer Variation, Personality Inventory, Drug Therapy: Combination, Isocarboxazid},
date-added = {2010-03-06 10:32:21 +0100},
date-modified = {2010-07-29 19:31:26 +0200},
pii = {S0165032796000948},
pmid = {9089057},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Bech-1997-J%20Affect%20Disord_The%20Major%20Depression.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6855},
rating = {0}
}

@article{Jones:2009p14036,
author = {B Jones and CF Nachtshein},
journal = {Journal of Quality Technology},
title = {Split-Plot Designs: What, Why, and How},
abstract = {The past decade has seen rapid advances in the development of new methods for the design and analysis of split-plot experiments. Unfortunately, the value of these designs for industrial experimentation has not been fully appreciated. In this paper, we review recent developments and provide guidelines for the use of split-plot designs in industrial applications.},
number = {4},
pages = {340--361},
volume = {41},
year = {2009},
date-added = {2010-08-09 10:06:40 +0200},
date-modified = {2010-08-09 10:07:56 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Jones-2009-Journal%20of%20Quality%20Technology_Split-Plot%20Designs.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p14036},
rating = {0}
}

@article{Capraro:2002,
author = {R M Capraro and M M Capraro},
journal = {Educational and Psychological Measurement},
title = {Myers-Briggs Type Indicator score reliability across studies: A meta-analytic Reliability Generalization study},
pages = {659--673},
volume = {62},
year = {2002},
date-added = {2010-01-10 11:33:21 +0100},
date-modified = {2010-01-10 11:33:25 +0100},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2203},
rating = {0}
}

@article{Kooperberg:2001p473,
author = {C Kooperberg and I Ruczinski and M L LeBlanc and L Hsu},
journal = {Genet Epidemiol},
title = {Sequence analysis using logic regression},
abstract = {Logic Regression is a new adaptive regression methodology that attempts to construct predictors as Boolean combinations of (binary) covariates. In this paper we use this algorithm to deal with single-nucleotide polymorphism (SNP) sequence data. The predictors that are found are interpretable as risk factors of the disease. Significance of these risk factors is assessed using techniques like cross-validation, permutation tests, and independent test sets. These model selection techniques remain valid when data is dependent, as is the case for the family data used here. In our analysis of the Genetic Analysis Workshop 12 data we identify the exact locations of mutations on gene 1 and gene 6 and a number of mutations on gene 2 that are associated with the affected status, without selecting any false positives.},
affiliation = {Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue N, MP-1002, Seattle, WA 98109-1024, USA.},
pages = {S626--31},
volume = {21 Suppl 1},
year = {2001},
month = {Jan},
language = {eng},
keywords = {Logistic Models, Polymorphism: Single Nucleotide, Algorithms, Female, Humans, Chromosome Mapping, Male, Quantitative Trait: Heritable, Models: Genetic, DNA Mutational Analysis, Genetic Predisposition to Disease},
date-added = {2010-01-03 12:30:44 +0100},
date-modified = {2010-01-03 12:30:44 +0100},
pmid = {11793751},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Kooperberg-2001-Genet%20Epidemiol_Sequence%20analysis%20us.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p473},
rating = {0}
}

@article{Christensen:2003p2367,
author = {K B Christensen and J B Bjorner},
title = {SAS macros for Rasch based latent variable modelling},
abstract = {This paper describes SAS macros that can be used to estimate item parameters using CML, test the assumption of unidimensionality, and fit regression models where either outcome variables or covariates are latent variables measured using (log linear) Rasch models.},
year = {2003},
date-added = {2010-01-10 13:43:30 +0100},
date-modified = {2010-01-10 13:44:08 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Christensen-2003-_SAS%20macros%20for%20Rasch.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2367},
rating = {0}
}

@article{Chun:2009p2565,
author = {Hyonho Chun and S{\"u}nd{\"u}z Keles},
journal = {Genetics},
title = {Expression quantitative trait loci mapping with multivariate sparse partial least squares regression},
abstract = {Expression quantitative trait loci (eQTL) mapping concerns finding genomic variation to elucidate variation of expression traits. This problem poses significant challenges due to high dimensionality of both the gene expression and the genomic marker data. We propose a multivariate response regression approach with simultaneous variable selection and dimension reduction for the eQTL mapping problem. Transcripts with similar expression are clustered into groups, and their expression profiles are viewed as a multivariate response. Then, we employ our recently developed sparse partial least-squares regression methodology to select markers associated with each cluster of genes. We demonstrate with extensive simulations that our eQTL mapping with multivariate response sparse partial least-squares regression (M-SPLS eQTL) method overcomes the issue of multiple transcript- or marker-specific analyses, thereby avoiding potential elevation of type I error. Additionally, joint analysis of multiple transcripts by multivariate response regression increases power for detecting weak linkages. We illustrate that M-SPLS eQTL compares competitively with other approaches and has a number of significant advantages, including the ability to handle highly correlated genotype data and computational efficiency. We provide an application of this methodology to a mouse data set concerning obesity and diabetes.},
affiliation = {Department of Biostatistics and Medical Informatics, University of Wisconsin, Madison, Wisconsin 53705, USA.},
number = {1},
pages = {79--90},
volume = {182},
year = {2009},
month = {May},
language = {eng},
keywords = {Animals, Genetic Markers, Diabetes Mellitus, Mice: Obese, Least-Squares Analysis, Gene Expression, Linkage (Genetics), Gene Expression Profiling, Mice, Computer Simulation, Quantitative Trait Loci, Oligonucleotide Array Sequence Analysis, Chromosomes: Mammalian, Models: Statistical, Bayes Theorem},
date-added = {2010-01-12 22:21:32 +0100},
date-modified = {2010-07-29 19:27:13 +0200},
doi = {10.1534/genetics.109.100362},
pii = {genetics.109.100362},
pmid = {19270271},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Chun-2009-Genetics_Expression%20quantitat.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2565},
rating = {0}
}

@article{Fabbri:2004p7716,
author = {D Fabbri and C Monfardini and R Radice},
title = {Testing exogeneity in the bivariate probit model: Monte Carlo evidence and an application to health economics},
abstract = {Many economic applications involve the modeling of a binary variable as simultaneously determined with one of its dycotomous regressors. In this paper we deal with a prominent health economics case study, that of cesarean section delivery utilization across public and private hospitals. Estimating the probability of cesarean section in a univariate framework neglecting the potential endogeneity of the hospital type dummy might lead to invalid inference. Since little is known about the exact sampling properties of alternative statistics for testing exogeneity of a dycotomous regressor in probit models, we conduct an extensive Monte Carlo exper- iment. Equipped with the simulation results we apply a comprehensive battery of tests to an Italian sample of women and find clear evidence against exogeneity of the hospital type dummy. We speculate on the economic implications of these results and discuss the misleading inter- pretation arising from the adoption of either univariate probit model or seemingly unrelated bivariate probit model.},
year = {2004},
date-added = {2010-03-17 20:48:13 +0100},
date-modified = {2010-03-17 20:48:48 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Fabbri-2004-_Testing%20exogeneity%20i.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7716},
rating = {0}
}

@article{Bollen:1995p11757,
author = {K A Bollen},
title = {Apparent And Nonapparent Significance Tests},
year = {1995},
date-added = {2010-05-23 09:57:09 +0200},
date-modified = {2010-05-23 09:57:48 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Bollen-1995-_Apparent%20And%20Nonappa.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11757},
rating = {0}
}

@article{Vanderveen:2008p9634,
author = {Joseph W Vanderveen and Lee M Cohen and David R M Trotter and Frank L Collins},
journal = {Addict Behav},
title = {Impulsivity and the role of smoking-related outcome expectancies among dependent college-aged cigarette smokers},
abstract = {The relationship between trait-impulsivity and smoking expectancies on smoking progression in undergraduate college students was examined over a 48-hour period of smoking abstinence. Participants were forty-nine college-aged dependent cigarette smokers who completed measures designed to assess impulsivity, nicotine dependence, and smoking expectancies. Using a series of multilevel models, impulsivity by time analyses indicated significant differences in positive reinforcement expectancies, [F (2, 94)=3.19, p<.05], but not in negative reinforcement expectancies, [F (2, 94)=0.49, p=.61]. Simple slopes analyses indicated that heightened trait-impulsivity predicted greater increases in positive reinforcement outcome expectancies at 48 h of abstinence. Level of impulsivity, however, was not related to changes in negative reinforcement expectancies. Results indicate that during an abstinence period, college students higher in trait-impulsivity may be more prone to relapse due to stronger beliefs about the positive effects from smoking a cigarette. These findings highlight the importance of understanding the interaction of personality and cognitive factors when working with young adult smokers wishing to quit this health-compromising behavior.},
affiliation = {Texas Tech University, Department of Psychology, Lubbock, TX 79409-2051, USA.},
number = {8},
pages = {1006--11},
volume = {33},
year = {2008},
month = {Aug},
language = {eng},
keywords = {Young Adult, Students, Questionnaires, Male, Adolescent, Female, Reinforcement (Psychology), Smoking, Universities, Impulsive Behavior, Humans, Smoking Cessation, Motivation, Tobacco Use Disorder, Choice Behavior},
date-added = {2010-03-25 14:47:58 +0100},
date-modified = {2010-07-29 19:12:35 +0200},
doi = {10.1016/j.addbeh.2008.03.007},
pii = {S0306-4603(08)00084-1},
pmid = {18474413},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Vanderveen-2008-Addict%20Behav_Impulsivity%20and%20the.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p9634},
rating = {0}
}

@article{Verguts:2001,
author = {Tom Verguts and Paul De Boeck},
journal = {Journal of Mathematical and Statistical Psychology},
title = {Some Mantel-Haenszel tests of Rasch model assumptions},
pages = {21--37},
volume = {54},
year = {2001},
date-added = {2010-01-10 11:33:23 +0100},
date-modified = {2010-07-29 20:46:12 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Verguts-2001-Journal%20of%20Mathematical%20and%20Statistical%20Psychology_Some%20Mantel-Haenszel.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1970},
rating = {0}
}

@article{Furnkranz:2002p4609,
author = {J F{\"u}rnkranz},
title = {Pairwise Classification as an Ensemble Technique},
abstract = {In this paper we investigate the performance of pairwise (or round robin) classification, originally a technique for turning multi-class problems into two-class problems, as a general ensemble technique. In particular, we show that the use of round robin ensembles will also increase the classification performance of decision tree learners, even though they can directly handle multi-class prob- lems. The performance gain is not as large as for bagging and boosting, but on the other hand round robin ensembles have a clearly defined semantics. Furthermore, we show that the advantage of pairwise classification over direct multi-class clas- sification and one-against-all binarization increases with the number of classes, and that round robin ensembles form an interesting alternative for problems with ordered class values.},
affiliation = {Austrian Research Institute for Artificial Intelligence Schottengasse 3, A-1010 Wien, Austria},
year = {2002},
date-added = {2010-01-30 15:08:34 +0100},
date-modified = {2010-01-30 15:09:10 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/F%C3%BCrnkranz-2002-_Pairwise%20Classificat.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4609},
rating = {0}
}

@misc{Rizopoulos:2005,
author = {Dimitris Rizopoulos},
journal = {Miscellaneous},
title = {Nonlinear effects in generalized latent variable models},
year = {2005},
date-added = {2010-01-10 11:33:23 +0100},
date-modified = {2010-01-10 11:33:25 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Rizopoulos-2005-Miscellaneous_Nonlinear%20effects%20in.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1909},
rating = {0}
}

@misc{Eggen:2005,
author = {Theo Eggen},
journal = {Miscellaneous},
title = {Computerized adaptive testing},
year = {2005},
date-added = {2010-01-10 11:33:24 +0100},
date-modified = {2010-01-10 11:33:25 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Eggen-2005-Miscellaneous_Computerized%20adaptiv.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2115},
rating = {0}
}

@article{RavensSieberer:2006p7947,
author = {Ulrike Ravens-Sieberer and Michael Erhart and Nora Wille and Ralf Wetzel and Jennifer Nickel and Monika Bullinger},
journal = {Pharmacoeconomics},
title = {Generic health-related quality-of-life assessment in children and adolescents: methodological considerations},
abstract = {The health-related quality of life (HR-QOL) of children and adolescents is increasingly considered a relevant topic for research. Instruments to assess quality of life in children and adolescents of a generic as well as disease- or condition-specific nature are being developed and applied in epidemiological surveys, clinical studies, quality assurance and health economics. This paper attempts to give an overview on the state of the art of HR-QOL assessment in children as it relates to methodological and conceptual challenges. Instruments available in international or cross-cultural research to assess HR-QOL in generic terms were identified and described according to psychometric data provided and the width of application. In an initial literature search, several challenges in the assessment of child and adolescent HR-QOL were identified, ranging from conceptual and methodological to practical aspects. Seven specific major issues were considered: (i) What are the dimensions of HR-QOL relevant for children and adolescents, and do suitable instruments for their measurement exist? (ii) Can these dimensions be collected in a cross-culturally comparable way? (iii) What advantages and disadvantages do self-rated versus externally evaluated HR-QOL measurements of children and adolescents have? (iv) How can HR-QOL be assessed in an age-appropriate way? (v) What are the advantages and disadvantages of disease-specific and generic data collection? (vi) What advantages and disadvantages do profile and index instruments have? (vii) How can HR-QOL be connected with utility- preference values? In a second literature search we identified nine generic HR-QOL instruments and four utility health state classification systems that complied with the prespecified inclusion criteria. It was concluded that (i) HR-QOL instruments are available to assess the dimensions of the construct relevant to children and adolescents; (ii) provided that an instrument was constructed in an appropriate way, the dimensions of HR-QOL can be measured in an interculturally comparable manner; (iii) the HR-QOL of children and adolescents can and should be ascertained by self-rating; (iv) the measurement instruments used have to consider maturity and cognitive development; (v) only generic quality-of-life instruments allow for an assessment of HR-QOL in both healthy and chronically ill children and adolescents; (vi) the representation of HR-QOL achieved through a singular index value is connected to strict psychometric conditions: the index instrument has to be tailored to these psychometric conditions; (vii) how far utility measures are employable with children and adolescents has to be investigated in further studies. The problem aspects identified indicate the necessity for further research. Nevertheless, instruments for assessing the HR-QOL of children and adolescents can be identified that meet the requirements mentioned above.},
affiliation = {Research Unit Psychosocial Health, Robert Koch-Institut, Berlin, Germany. Ravens-SiebererU@rki.de},
number = {12},
pages = {1199--220},
volume = {24},
year = {2006},
month = {Jan},
language = {eng},
keywords = {Child: Preschool, Quality of Life, Humans, Child, Health, Adolescent, Age Factors, Models: Statistical, Cross-Cultural Comparison},
date-added = {2010-03-20 19:31:31 +0100},
date-modified = {2010-03-20 19:31:31 +0100},
pii = {24125},
pmid = {17129075},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7947},
rating = {0}
}

@article{Torgersen:2009p9057,
author = {Svenn Torgersen},
journal = {Scand J Psychol},
title = {The nature (and nurture) of personality disorders},
abstract = {Personality disorders have a long history in the literature but a short scientific history. The point prevalence of personality disorders is 10%, but the lifetime prevalence is probably 30-40%. Genetic factors contribute to around 40-50% of the variation in the development of personality disorders. The effect of shared environment is very small or non-existent. Some researchers have tried to promote gene-environment interaction. However, in reality, the studies investigated gene-situation interaction, as the "environment" may in reality be partly of a genetic nature. Thus, we are dealing with an unknown part of gene-gene interaction. Gene-experience (not gene-environment) correlations are the rule in human life. Personality disorders co-occur (are comorbid) with symptom disorders (Axis I) and correlate with common personality dimensions. Possibly, the concept of personality disorder could merge with dysfunctional personality types. But it is likely that the concept will survive on its own.},
affiliation = {Department of Psychology, University of Oslo, Oslo, Norway. svenn.torgersen@psykologi.uio.no},
number = {6},
pages = {624--32},
volume = {50},
year = {2009},
month = {Dec},
language = {eng},
keywords = {Personality Disorders, Genetic Predisposition to Disease, Social Environment, Risk Factors, Life Change Events, Humans, Prevalence},
date-added = {2010-03-22 13:18:51 +0100},
date-modified = {2010-07-29 19:49:57 +0200},
doi = {10.1111/j.1467-9450.2009.00788.x},
pii = {SJOP788},
pmid = {19930262},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Torgersen-2009-Scand%20J%20Psychol_The%20nature%20(and%20nurt.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p9057},
rating = {0}
}

@article{Dennis:2004p12746,
author = {Cindy-Lee Dennis},
journal = {J Affect Disord},
title = {Can we identify mothers at risk for postpartum depression in the immediate postpartum period using the Edinburgh Postnatal Depression Scale?},
abstract = {BACKGROUND: Postpartum depression is a major health issue for many women around the world with well-documented negative health consequences for the mother, child and family. While research has demonstrated the amenability of postpartum depression to treatment, there is preliminary evidence suggesting maternal mood in the immediate postpartum period may be predictive of postpartum depression such that secondary preventive interventions may be implemented. METHODS: A population-based sample of 594 mothers completed the Edinburgh Postnatal Depression Scale (EPDS) at 1, 4 and 8 weeks postpartum. The sensitivity, specificity and predictive power of the 1-week EPDS in relation to identifying mothers with elevated EPDS scores at 4 and 8 weeks was determined. The predictive power of the 1-week EPDS was further assessed using odds ratios and receiver operator characteristic (ROC) curves. RESULTS: At 1 week postpartum, 29.5% of mothers scored >9 on the EPDS, decreasing to 23% at 4 weeks and 20.5% at 8 weeks. Using the cut-off score of 9/10, the 1-week EPDS accurately classified 85.4% mothers at 4 weeks and 82.5% mothers at 8 weeks with or without postpartum depression symptomatology. The 1-week EPDS was significantly correlated to the 4-week (r=0.72, P<0.001) and 8-week (r=0.65, P<0.001) EPDS. Mothers with a 1-week EPDS score >9 were 30.3 times more likely at 4 weeks (95% CI=17.5-42.3) and 19.1 times more likely at 8 weeks (95% CI=11.0-32.9) to exhibit postpartum depression symptomatology. LIMITATIONS: Psychiatric interviews were not completed in collaboration with the EPDS. CONCLUSION: The EPDS administered in the 1st week postpartum was predictive of maternal mood at 4 and 8 weeks postpartum. To identify mothers at high risk for postpartum depression, health care professionals could consider screening all new mothers in the immediate postpartum period such that secondary preventive interventions may be implemented.},
affiliation = {Faculty of Nursing, University of Toronto, 50 St. George Street, Toronto, Ont., Canada M5S 3H4. cindylee.dennis@utoronto.ca},
number = {2},
pages = {163--9},
volume = {78},
year = {2004},
month = {Feb},
language = {eng},
keywords = {Adolescent, Mothers, Mass Screening, Follow-Up Studies, Adult, Male, Depression: Postpartum, Risk Factors, Questionnaires, Reproducibility of Results, Female, Humans, ROC Curve},
date-added = {2010-06-15 22:49:48 +0200},
date-modified = {2010-06-15 22:49:59 +0200},
pii = {S0165032702002999},
pmid = {14706728},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Dennis-2004-J%20Affect%20Disord_Can%20we%20identify%20moth.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12746},
rating = {3}
}

@article{Luke:1995p8218,
author = {B Luke and S Leurgans and L Keith and D Keith},
journal = {Acta Genet Med Gemellol (Roma)},
title = {The childhood growth of twin children},
abstract = {The objective of this study was to assess the childhood growth of twin children in terms of the effects of intrauterine growth retardation (IUGR) and discordancy at birth on the incidence and severity of stunting and discordancy in current height and weight. The study was part of a cross-sectional field project conducted at the Annual Twins Days Festival in Twinsburg. Ohio, USA, during 1990, 1991, and 1993, and including all twin children between 2 and 12 years of age. Mothers of twins were interviewed regarding their children's birthweights and gestational age; the twin children were measured for their current heights and weights. The study population included 990 twin children, including 555 boys and 435 girls, of which there were 254 boy pairs and 194 girls pairs. Birthweight for gestational age and current weight and height were each converted into Z-scores and characterized as severe (Z-score < -2,0), or moderate IUGR or stunting (Z-score > -2.0 and < -1.2). For the present study discordancy in birthweight, and current height and weight was calculated for like-gender twin pairs. Only twin children with severe IUGR at birth showed an increased risk of stunting in their current height or weight, and this risk was only for moderate, not severe, stunting. Boy twins with severe IUGR at birth were at increased risk of moderate stunting in their current weight (OR 2.67, 95% CI 1.55, 4.58, p = 0.002), while girl twins with severe IUGR at birth were at increased risk of moderate stunting in their current height (OR 4.09, 95% CI 1.49, 10.99, p = 0.003). Among like-gender twin pairs, there were no differences in mean or categories of birthweight or current weight discordancy, but boy twin pairs did show a significantly greater proportion of current weight discordancy compared to girl twin pairs (p = 0.005). Overall, there was a significant tendency for differences in height and weight between like-gender twin pairs to disappear over time, with the effect being greater for boy twin pairs. We conclude from these findings that twin children tend to overcome growth retardation and discordancy present at birth, and although children who had severe IUGR or discordancy at birth were more likely to have some residual moderate stunting or discordancy in height or weight, they still tended to be within normal values for their gender and current age.},
affiliation = {Department of Obstetrics and Gynecology, University of Michigan Medical School, Ann Arbor, USA.},
number = {3-4},
pages = {169--78},
volume = {44},
year = {1995},
month = {Jan},
language = {eng},
keywords = {Child: Preschool, Body Weight, United States, Follow-Up Studies, Body Height, Growth, Twins: Dizygotic, Humans, Male, Twins: Monozygotic, Twins, Female, Fetal Growth Retardation, Child, Cohort Studies},
date-added = {2010-03-20 19:54:41 +0100},
date-modified = {2010-03-20 19:54:41 +0100},
pmid = {8739728},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Luke-1995-Acta%20Genet%20Med%20Gemellol%20(Roma)_The%20childhood%20growth.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8218},
rating = {0}
}

@article{Bartels:2003p1359,
author = {M Bartels and J J Hudziak and E J C G van den Oord and C E M van Beijsterveldt and M J H Rietveld and Dorret I Boomsma},
journal = {Behav Genet},
title = {Co-occurrence of aggressive behavior and rule-breaking behavior at age 12: multi-rater analyses},
abstract = {Aggressive Behavior (AGG) and Rule-Breaking Behavior (RB) are two of the eight CBCL syndromes. The phenotypic correlation between AGG and RB ranges from.48 to.76, and varies depending on the rater and the sex of the child. Prevalence of AGG and RB (i.e., T > or = 67) is in the range of 6%-7% in both boys and girls. Fifty percent to 60% of the children who are deviant on AGG are also deviant on RB and vice versa. Why so many children show problem behavior in the clinical range for both syndromes is unclear. This co-occurrence could be due to genetic factors influencing both traits, to environmental factors influencing both traits, or to both. The purpose of this study is to use a genetically informative sample to estimate genetic and environmental influences on AGG and RB and to investigate the etiology of the co-occurrence of both behaviors. We do this using multiple informants to take into account underlying sources of parental agreement and disagreement in ratings of their offspring. To this end, mother and father ratings of AGG and RB were collected by using the Child Behavior Checklist in a large sample of 12-year-old twins. Parental agreement is represented by an interparent correlation in the range of .53-.76, depending on phenotype (AGG or RB) and sex of the child. Genetic influences account for 79% and 69% of the individual differences in RB and AGG behavior (defined as AGG and RB on which both parents do agree) in boys. In girls 56% and 72% of the variance in RB and AGG are accounted for by genetic factors. Shared environmental influences are significant for RB in girls only, explaining 23% of the total variance. Eighty percent of the covariance between AGG and RB, similarly assessed by both parents, can be explained by genetic influences. So, co-occurrence in AGG and RB is mainly caused by a common set of genes. Parental disagreement seems to be a combination of so-called rater bias and of parental specific views.},
affiliation = {Dept. of Psychology, Vrije Universiteit, Amsterdam, The Netherlands.},
number = {5},
pages = {607--21},
volume = {33},
year = {2003},
month = {Sep},
language = {eng},
keywords = {Male, Models: Genetic, Models: Psychological, Mental Disorders, Female, Phenotype, Observer Variation, Incidence, Netherlands, Aggression, Humans, Child},
date-added = {2010-01-07 11:52:51 +0100},
date-modified = {2010-07-29 20:25:51 +0200},
pii = {470351},
pmid = {14574136},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Bartels-2003-Behav%20Genet_Co-occurrence%20of%20agg.pdf},
uri = {

license: MIT

license_type: permissive

branch_name: refs/heads/master

extension: bib