text:
of two modes of administration (face-to-face and remote electronic) for the time trade-off. METHOD: Data were collected from a convenience sample of adults (n = 135) randomised to either a face-to-face time trade-off or a remote electronic tool. Patterns of responses were considered. For each sample, standard regression analysis was undertaken to generate a valuation set, which were then contrasted. RESULTS: The pattern of responses differed by mode of administration, with the electronic tool yielding larger standard deviations and higher proportions of responses at -1, 0 and 1. The impact of this on the regression was difficult to disentangle from the high variability around individual scores of states, which is a common feature of responses to time trade-off tasks. Under the scoring algorithms generated by mode of administration, the difference between scores exceeded 0.1 for 100 of the 243 EQ-5D health states. CONCLUSIONS: This comparison demonstrates that variability arising from mode of administration needs to be considered in developing health state valuations. While electronic administration has considerable cost advantages, particular attention to the design of the task is required. This has wider implications, as all modes of administration may have mode-specific impacts on the distribution of valuation responses.},
affiliation = {Centre for Health Economics Research and Evaluation (CHERE), University of Technology Sydney, PO BOX 123, 2007, Broadway, Australia. richard.norman@chere.uts.edu.au},
number = {4},
pages = {499--508},
volume = {19},
year = {2010},
month = {May},
language = {eng},
date-added = {2010-04-14 06:39:09 +0200},
date-modified = {2010-07-29 19:48:29 +0200},
doi = {10.1007/s11136-010-9609-5},
pmid = {20174998},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Norman-2010-Qual%20Life%20Res_Does%20mode%20of%20adminis.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11002},
rating = {0}
}

@phdthesis{Duval:2006,
author = {J Duval},
journal = {PhD Thesis},
title = {R{\'E}CUP{\'E}RATION DU QUOTIENT INTELLECTUEL SUITE {\`A} UNE L{\'E}SION C{\'E}R{\'E}BRALE UNILAT{\'E}RALE : EFFET DE L'{\^A}GE {\`A} LA L{\'E}SION, DES CARACT{\'E}RISTIQUES L{\'E}SIONNELLES ET DE LA M{\'E}THODOLOGIE},
affiliation = {Universit{\'e} du Qu{\'e}bec {\`a} Montr{\'e}al},
year = {2006},
month = {Nov},
date-added = {2010-01-10 11:33:09 +0100},
date-modified = {2010-01-10 11:33:25 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Duval-2006-PhD%20Thesis_R%C3%89CUP%C3%89RATION%20DU%20QUOT.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2161},
rating = {0}
}

@article{Loehlin:2005p1854,
author = {J C Loehlin and S E Medland and G W Montgomery and N G Martin},
journal = {Personality and Individual Differences},
title = {Eysenck's Psychoticism and the X-linked androgen receptor gene CAG polymorphism in additional Australian samples},
abstract = {Data from existing Brisbane samples of adult women, and of adolescents of both sexes, were examined in an effort to replicate the Canberra finding of Turakulov, Jorm, Jacomb, Tan, and Easteal (2004); namely, an association between scores on Eysenck{\~O}s Psychoticism (P) scale and short CAG sequences on the andro- gen receptor gene. They found a significant association in this direction in males, and a similar (although nonsignificant) one in females. Some support was found for a relationship between P scores and short CAG sequences in the Brisbane female samples, but the adolescent boys showed differences which, although small, tended to lie in the opposite direction. Correlations of CAG sequence length with P suggested that the sequence length, at best, accounted for only a very small proportion of the variance of P.},
affiliation = {Department of Psychology, University of Texas, Austin, TX 78712, USA},
pages = {661--667},
volume = {39},
year = {2005},
keywords = {Testosterone, Psychoticism, Androgen receptor, Eysenck, CAG repeats},
date-added = {2010-01-10 11:29:42 +0100},
date-modified = {2010-01-10 11:31:37 +0100},
doi = {10.1016/j.paid.2005.02.016},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Loehlin-2005-Personality%20and%20Individual%20Differences_Eysenck's%20Psychotici.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1854},
rating = {0}
}

@article{Plomin:2001p5763,
author = {R Plomin and S M Kosslyn},
journal = {Nat Neurosci},
title = {Genes, brain and cognition},
number = {12},
pages = {1153--4},
volume = {4},
year = {2001},
month = {Dec},
language = {eng},
keywords = {Genetic Variation, Cerebral Cortex, Brain Mapping, Body Patterning, Intelligence, Cognition, Twin Studies as Topic, Humans, Twins, Gene Expression Regulation: Developmental},
date-added = {2010-02-15 20:29:20 +0100},
date-modified = {2010-07-29 19:40:39 +0200},
doi = {10.1038/nn1201-1153},
pii = {nn1201-1153},
pmid = {11723454},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Plomin-2001-Nat%20Neurosci_Genes%20brain%20and%20cog.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5763},
read = {Yes},
rating = {4}
}

@article{Ark:2001,
author = {L Andries van der Ark},
journal = {Applied Psychological Measurement},
title = {Relationships and properties of polytomous item response theory models},
number = {3},
pages = {273--282},
volume = {25},
year = {2001},
date-added = {2010-01-10 11:33:23 +0100},
date-modified = {2010-07-29 20:42:55 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Andries%20van%20der%20Ark-2001-Applied%20Psychological%20Measurement_Relationships%20and%20pr.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2194},
rating = {0}
}

@article{Strauss:2000p7934,
author = {R S Strauss},
journal = {JAMA},
title = {Adult functional outcome of those born small for gestational age: twenty-six-year follow-up of the 1970 British Birth Cohort},
abstract = {CONTEXT: Although studies have documented cognitive impairment in children who were born small for gestational age (SGA), other studies have not demonstrated differences in IQ or other cognitive scores. The need exists for long-term studies of such children to assess functional outcomes not measurable with standardized testing. OBJECTIVE: To determine the long-term functional outcome of SGA infants. DESIGN: Prospective cohort study. SETTING AND PARTICIPANTS: A total of 14,189 full-term infants born in the United Kingdom on April 5 through 11, 1970, were studied as part of the 1970 British Birth Cohort; 1064 were SGA (birth weight less than the fifth percentile for age at term). Follow-up at 5, 10, 16, and 26 years was 93%, 80%, 72%, and 53%, respectively. MAIN OUTCOME MEASURES: School performance and achievement, assessed at 5, 10, and 16 years; and years of education, occupational status, income, marital status, life satisfaction, disability, and height, assessed at 26 years, comparing persons born SGA with those who were not. RESULTS: At 5, 10, and 16 years of age, those born SGA demonstrated small but significant deficits in academic achievement. In addition, teachers were less likely to rate those born SGA in the top 15th percentile of the class at 16 years (13% vs 20%; P<.01) and more likely to recommend special education (4.9% vs 2.3%; P<.01) compared with those born at normal birth weight (NBW). At age 26 years, adults who were SGA did not demonstrate any differences in years of education, employment, hours of work per week, marital status, or satisfaction with life. However, adults who were SGA were less likely to have professional or managerial jobs (8.7% vs 16.4%; P<.01) and reported significantly lower levels of weekly income (mean [SD], 185 [91] vs 206 [102] pound sterling; P<.01) than adults who were NBW. Adults who were SGA also reported significant height deficits compared with those who were NBW (mean [SD] z score, -0.55 [0.98] vs 0.08 [1.02]; P<.001). Similar results were also obtained after adjusting for social class, sex, region of birth, and the presence of fetal or neonatal distress. CONCLUSIONS: In this cohort, adults who were born SGA had significant differences in academic achievement and professional attainment compared with adults who were NBW. However, there were no long-term social or emotional consequences of being SGA: these adults were as likely to be employed, married, and satisfied with life.},
affiliation = {Department of Pediatrics, University of Medicine and Dentistry of New Jersey-Robert Wood Johnson School of Medicine, New Brunswick 08903-0019, USA. strausrs@rwja.umdnj.edu},
number = {5},
pages = {625--32},
volume = {283},
year = {2000},
month = {Feb},
language = {eng},
keywords = {Self Assessment (Psychology), Humans, Child Development, Follow-Up Studies, Infant: Small for Gestational Age, Female, Child: Preschool, Social Class, Great Britain, Infant: Newborn, Educational Status, Adult, Multivariate Analysis, Prospective Studies, Adolescent, Child, Socioeconomic Factors, Quality of Life, Body Height, Logistic Models, Male},
date-added = {2010-03-20 19:25:55 +0100},
date-modified = {2010-03-20 19:25:55 +0100},
pii = {joc90907},
pmid = {10665702},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7934},
rating = {0}
}

@article{Kriegeskorte:2010p12336,
author = {N Kriegeskorte and M A Lindquist and T E Nichols and R A Poldrack and E Vul},
title = {Everything you never wanted to know about circular analysis -- but were afraid to ask},
abstract = {Over the last year a heated discussion about "circular" or "non-independent" analyses in brain imaging has emerged in the literature. An analysis is circular (or non-independent) if it is based on data that was selected for showing the effect of interest, or a related effect. The authors of this paper are researchers that have contributed to the discussion and span a range of viewpoints. In order to clarify points of agreement and disagreement in the community, we have collaboratively assembled a series of questions on circularity here, to which we provide our individual current answers in 100 words or less per question. While divergent views remain on some of the questions, there is also a substantial convergence of opinion, which we have summarized in a consensus box. The box provides the best current answers the five authors could agree upon.},
date-added = {2010-06-12 10:15:06 +0200},
date-modified = {2010-06-12 10:16:12 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Kriegeskorte--_Everything%20you%20never.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12336},
rating = {4}
}

@article{Baldwin:2006p1747,
author = {P Baldwin},
journal = {Annual meeting of the National Council on Measurement in Education},
title = {A Modified IRT Model Intended to Improve Parameter Estimates under Small Sample Conditions},
abstract = {This study examines the feasibility and effectiveness of grouping dichotomous test items into overlapping subsets with relatively homogeneous discriminating power and estimating subset-specific a-parameters for the purpose of improving item-specific parameter estimates when sample size is small. The current study only considers the 2-pl case, however, the use of Bayesian generic priors with the conventional 2-pl already provides sufficiently high-quality estimates for most small sample applications. Therefore, the purpose of this study was not to evaluate an alternate 2-pl model but rather to investigate whether the proposed strategy showed enough promise to extend to the more complicated 3-pl case. Under almost all conditions, the modified 2-pl method did as well or better than the conventional 1-pl and 2-pl IRT models. The results of this study suggest the extension to the 3-pl is warranted.},
year = {2006},
date-added = {2010-01-09 20:44:51 +0100},
date-modified = {2010-01-09 20:45:35 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Baldwin-2006-Annual%20meeting%20of%20the%20National%20Council%20on%20Measurement%20in%20Education_A%20Modified%20IRT%20Model.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1747},
rating = {0}
}

@article{Katigbak:2002p11624,
author = {Marcia S Katigbak and A Timothy Church and Ma Angeles Guanzon-Lape{\~n}a and Annadaisy J Carlota and PilarGregorioH del},
journal = {J Pers Soc Psychol},
title = {Are indigenous personality dimensions culture specific? Philippine inventories and the five-factor model},
abstract = {The authors addressed the culture specificity of indigenous personality constructs, the generalizability of the 5-factor model (FFM), and the incremental validity of indigenous measures in a collectivistic culture. Filipino college students (N = 508) completed 3 indigenous inventories and the Filipino version of the Revised NEO Personality Inventory (NEO-PI-R). On the basis of the factor and regression analyses, they concluded that (a) most Philippine dimensions are well encompassed by the FFM and thus may not be very culture specific: (b) a few indigenous constructs are less well accounted for by the FFM: these constructs are not unknown in Western cultures, but they may be particularly salient or composed somewhat differently in the Philippines; (c) the structure of the NEO-PI-R FFM replicates well in the Philippines: and (d) Philippine inventories add modest incremental validity beyond the FFM in predicting selected culture-relevant criteria.},
affiliation = {Department of Educational Leadership and Counseling Psychology, Washington State University, Pullman 99164-2136, USA.},
number = {1},
pages = {89--101},
volume = {82},
year = {2002},
month = {Jan},
language = {eng},
keywords = {Adolescent, Ethnic Groups, Humans, Culture, Female, Male, Personality Development, Personality Inventory, Reproducibility of Results, Adult},
date-added = {2010-05-11 22:45:34 +0200},
date-modified = {2010-05-11 22:45:34 +0200},
pmid = {11811638},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11624},
rating = {4}
}

@article{Zupan:2000p1848,
author = {Blaz Zupan and J Demsar and D Smrke and K Bozikov and V Stankovski and I Bratko and J Robert Beck},
title = {Predicting patient's long term clinical status after hip arthroplasty using hierarchical decision modelling and data mining},
year = {2000},
date-added = {2010-01-10 11:15:54 +0100},
date-modified = {2010-07-29 20:46:31 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Zupan-2000-_Predicting%20patient's.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1848},
rating = {0}
}

@article{Anonymous:2003p13996,
title = {The origins and development of the Edinburgh Postnatal Depression Scale},
year = {2003},
date-added = {2010-08-04 09:23:04 +0200},
date-modified = {2010-08-04 09:23:36 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/2003-_The%20origins%20and%20deve.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13996},
rating = {0}
}

@article{Kalichman:2010p13255,
author = {Seth C Kalichman and Leickness C Simbayi and Demetria Cain},
journal = {Eur J Public Health},
title = {HIV transmission risk behaviours among HIV seropositive sexually transmitted infection clinic patients in Cape Town, South Africa},
abstract = {BACKGROUND: South Africa has one of the fastest growing HIV epidemics in the world and new infections may often result from people who have tested HIV positive. This study examined the sexual practices and risk behaviours of men and women living with HIV/AIDS being treated for a co-occurring sexually transmitted infection (STI). METHODS: A sample of men and women receiving services at three South African STI clinics completed a computer administered behavioural assessment. RESULTS: Among the 218 HIV positive STI clinic patients, 34 (16%) had engaged in unprotected vaginal or anal intercourse with uninfected or unknown HIV status sex partners in the previous month. A multivariate logistic regression indicated that unprotected sex with uninfected or unknown HIV status partners was independently associated with older age, female gender, alcohol use, and other drug use, and drug use in sexual contexts. CONCLUSIONS: People living with HIV/AIDS who contract co-occurring STI are at significant risk for transmitting HIV to uninfected partners. Positive prevention interventions are urgently needed for South Africa.},
affiliation = {Department of Psychology, University of Connecticut, Storrs, CT 06269, USA. seth.k@uconn.edu},
number = {2},
pages = {202--6},
volume = {20},
year = {2010},
month = {Apr},
language = {eng},
date-added = {2010-07-01 18:18:01 +0200},
date-modified = {2010-07-01 18:18:01 +0200},
doi = {10.1093/eurpub/ckp127},
pii = {ckp127},
pmid = {19726591},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Kalichman-2010-Eur%20J%20Public%20Health_HIV%20transmission%20ris.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13255},
rating = {0}
}

@article{Toplak:2010p4878,
author = {Marko Toplak and Tomaz Curk and Janez Demsar and Blaz Zupan},
journal = {BMC Genomics},
title = {Does replication groups scoring reduce false positive rate in SNP interaction discovery?},
abstract = {ABSTRACT: BACKGROUND: Computational methods that infer single nucleotide polymorphism (SNP) interactions from phenotype data may uncover new biological mechanisms in non-Mendelian diseases. However, practical aspects of such analysis face many problems. Present experimental studies typically use SNP arrays with hundreds of thousands of SNPs but record only hundreds of samples. Candidate SNP pairs inferred by interaction analysis may include a high proportion of false positives. Recently, Gayan et al. (2008) proposed to reduce the number of false positives by combining results of interaction analysis performed on subsets of data (replication groups), rather than analyzing the entire data set directly. If performing as hypothesized, replication groups scoring could improve interaction analysis and also any type of feature ranking and selection procedure in systems biology. Because Gayan et al. do not compare their approach to the standard interaction analysis techniques, we here investigate if replication groups indeed reduce the number of reported false positive interactions. RESULTS: A set of simulated and false interaction-imputed experimental SNP data sets were used to compare the inference of SNP-SNP interactions by means of replication groups to the standard approach where the entire data set was directly used to score all candidate SNP pairs. In all our experiments, the inference of interactions from the entire data set (e.g. without using the replication groups) reported fewer false positives. CONCLUSIONS: With respect to the direct scoring approach the utility of replication groups does not reduce false positive rates, and may, depending on the data set, often perform worse.},
number = {1},
pages = {58},
volume = {11},
year = {2010},
month = {Jan},
language = {ENG},
date-added = {2010-02-02 11:16:02 +0100},
date-modified = {2010-07-29 19:20:00 +0200},
doi = {10.1186/1471-2164-11-58},
pii = {1471-2164-11-58},
pmid = {20092660},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Toplak-2010-BMC%20Genomics_Does%20replication%20gro-1.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4878},
rating = {0}
}

@article{Gadaras:2009p808,
author = {Ioannis Gadaras and Ludmil Mikhailov},
journal = {Artif Intell Med},
title = {An interpretable fuzzy rule-based classification methodology for medical diagnosis},
abstract = {OBJECTIVE: The aim of this paper is to present a novel fuzzy classification framework for the automatic extraction of fuzzy rules from labeled numerical data, for the development of efficient medical diagnosis systems. METHODS AND MATERIALS: The proposed methodology focuses on the accuracy and interpretability of the generated knowledge that is produced by an iterative, flexible and meaningful input partitioning mechanism. The generated hierarchical fuzzy rule structure is composed by linguistic; multiple consequent fuzzy rules that considerably affect the model comprehensibility. RESULTS AND CONCLUSION: The performance of the proposed method is tested on three medical pattern classification problems and the obtained results are compared against other existing methods. It is shown that the proposed variable input partitioning leads to a flexible decision making framework and fairly accurate results with a small number of rules and a simple, fast and robust training process.},
affiliation = {University of Manchester, School of Computer Science, Manchester, United Kingdom. i.gadaras@student.manchester.ac.uk},
number = {1},
pages = {25--41},
volume = {47},
year = {2009},
month = {Sep},
language = {eng},
keywords = {Reproducibility of Results, Artificial Intelligence, Breast Neoplasms, Young Adult, Pregnancy, Indians: North American, Female, Diagnosis: Computer-Assisted, Liver Function Tests, Diabetes Mellitus, Genetics, Algorithms, Humans, Hematologic Tests, Fuzzy Logic, Data Collection, Classification, Arizona},
date-added = {2010-01-03 17:15:03 +0100},
date-modified = {2010-01-03 17:15:03 +0100},
doi = {10.1016/j.artmed.2009.05.003},
pii = {S0933-3657(09)00081-5},
pmid = {19540096},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Gadaras-2009-Artif%20Intell%20Med_An%20interpretable%20fuz.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p808},
rating = {0}
}

@article{Scharinger:2010p8816,
author = {Christian Scharinger and Ulrich Rabl and Harald H Sitte and Lukas Pezawas},
journal = {Neuroimage},
title = {Imaging genetics of mood disorders},
abstract = {Mood disorders are highly heritable and have been linked to brain regions of emotion processing. Over the past few years, an enormous amount of imaging genetics studies has demonstrated the impact of risk genes on brain regions and systems of emotion processing in vivo in healthy subjects as well as in mood disorder patients. While sufficient evidence already exists for several monaminergic genes as well as for a few non-monoaminergic genes, such as brain-derived neurotrophic factor (BDNF) in healthy subjects, many others only have been investigated in single studies so far. Apart from these studies, the present review also covers imaging genetics studies applying more complex genetic disease models of mood disorders, such as epistasis and gene-environment interactions, and their impact on brain systems of emotion processing. This review attempts to provide a comprehensive overview of the rapidly growing field of imaging genetics studies in mood disorder research.},
affiliation = {Division of Biological Psychiatry, Department of Psychiatry and Psychotherapy, Medical University of Vienna, Waehringer Guertel 18-20, A-1090 Vienna, Austria.},
pages = {},
year = {2010},
month = {Feb},
language = {ENG},
date-added = {2010-03-22 12:32:02 +0100},
date-modified = {2010-03-22 12:32:02 +0100},
doi = {10.1016/j.neuroimage.2010.02.019},
pii = {S1053-8119(10)00187-4},
pmid = {20156570},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Scharinger-2010-Neuroimage_Imaging%20genetics%20of-1.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p8816},
rating = {0}
}

@article{Warnecke:7,
author = {RB Warnecke and TP Johnson and N Chavez and S Sudman and DP O'Rourke and L Lacey},
journal = {Annals of Epidemiology},
title = {Improving question wording in surveys of culturally diverse populations},
abstract = {PURPOSE: The purpose of this paper is to briefly describe a theoretical model articulating cognitive theory and sources of potential response bias resulting from racial or ethnic cultural experience to survey questions that deal with health behavior. The theory components are then evaluated using questions obtained from national health surveys conducted by the National Center for Health Statistics and Centers for Disease Control and Prevention. The analysis explores the effects of four cognitive tasks involved in responding to questions as specified by the model: question interpretation, information retrieval from memory, judgment formation, and response editing. Implications for epidemiological research are considered. METHODS: Data were collected from a purposive sample of 423 adults aged 18 through 50 who were recruited to ensure equal numbers of African American, Puerto Rican, Mexican American, and non-Hispanic white respondents, stratified by age, gender, and education. Individual questions were selected for evaluation to ensure variation by topic and question format. Probes related to each of the cognitive tasks were designed to obtain insight into the underlying cognitive processes used by respondents to answer survey questions. All statistical analyses used logistic regression or ordinary least squares multiple regression as appropriate. RESULTS: Variation by race/ethnicity was found in the way respondents defined physical activity in a series of questions used in the Centers for Disease Control and Prevention Behavioral Risk Factor Surveillance System (BRFSS). Gender and race/ethnicity appeared to influence interpretation in the absence of specific cues in the question format about how to respond. Strategies used to retrieve information from memory did not appear to be influenced by respondent culture; however, frequency of the event was associated with the recall strategy in that more frequent or regular events were more likely to result in estimates about frequency, whereas unusual or seldom occurring events were counted. Effects of race/ethnicity on judgment formation seem to be reflected in the propensity of respondents' willingness to use extreme response categories. Most effects due to race/ethnicity were found in respondent editing of answers. Race/ethnicity was found to be associated with a social desirability trait; with willingness to disclose socially undesirable behavior, particularly to interviews from racial or ethnic groups that differed from the respondent; and with the tendency to overreport socially desirable behavior. CONCLUSIONS: Overall, the results of this research suggest several ways in which the validity of questions about risk behavior can be improved. In designing such questions, the investigator should envision the interview as a structured conversation in which ordinary conversational norms apply. Thus, questions that might request redundant information or that are threatening to the respondent need to be asked in ways that minimize these effects. Using interviewers of the same racial or ethnic group is important. Attending to the order of questions to ensure that redundant information is not requested is important. Writing questions to ensure that where response cues occur they lead the respondent to answer in unbiased ways is also important. Testing questions for potential racial or ethnic bias before using them is also important, even if the questions have been used successfully with population groups other than that or those included in a study.},
number = {334-342},
volume = {5},
year = {7},
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/p934},
rating = {0}
}

@article{Gingnell:2010p12796,
author = {Malin Gingnell and Erika Comasco and Lars Oreland and Mats Fredrikson and Inger Sundstr{\"o}m-Poromaa},
journal = {Arch Womens Ment Health},
title = {Neuroticism-related personality traits are related to symptom severity in patients with premenstrual dysphoric disorder and to the serotonin transporter gene-linked polymorphism 5-HTTPLPR},
abstract = {Neuroticism has been linked to a functional polymorphism in the serotonin transporter gene (5-HTTLPR), with short-allele carriers being overrepresented among high-scorers on neuroticism. Studies evaluating neuroticism-related personality traits in relation to the 5-HTTLPR polymorphism among patients with premenstrual dysphoric disorder (PMDD) and are lacking. The primary aim of this study was to evaluate the relationship between PMDD and neuroticism-related personality traits, and secondly, to relate the personality trait scores of PMDD patients to experienced symptom severity and to the 5-HTTLPR short allele. Thirty PMDD patients and 55 asymptomatic healthy controls were included in the study. The Swedish Universities Scale of Personality was used to evaluate personality traits. Genotype analyses were available in 27 PMDD patients and 18 healthy controls. Women with PMDD displayed higher levels of neuroticism-related personality traits (psychic trait anxiety, somatic trait anxiety, embitterment, stress susceptibility and mistrust) than healthy controls, and these effects were most prominent in women with more severe luteal phase symptoms. Furthermore, PMDD patients with at least one copy of the short allele of the 5-HTTLPR polymorphism scored higher on psychic trait anxiety and lack of assertiveness than PMDD patients who were homozygous for the long allele. PMDD patients who suffer from more severe luteal phase symptoms also display increased scores of neuroticism-related personality traits in comparison with healthy controls. Within the group of PMDD patients, differences in certain personality trait scores are associated with the short allele of the 5-HTTLPR polymorphism.},
affiliation = {Department of Women's and Children's Health, Uppsala University, 751 85, Uppsala, Sweden, malin.gingnell@kbh.uu.se.},
pages = {},
year = {2010},
month = {May},
language = {ENG},
date-added = {2010-06-18 21:18:50 +0200},
date-modified = {2010-07-29 19:17:21 +0200},
doi = {10.1007/s00737-010-0164-4},
pmid = {20440524},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Gingnell-2010-Arch%20Womens%20Ment%20Health_Neuroticism-related.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12796},
rating = {0}
}

@article{Noftle:2006p13155,
author = {E Noftle and P R Shaver},
journal = {Journal of Research in Personality},
title = {Attachment dimensions and the big five personality traits: Associations and comparative ability to predict relationship quality},
abstract = {Several studies have explored associations between measures of adult attachment style and the Big Five personality traits or factors, but the studies have not included current dimensional measures of attachment style (Brennan, Clark, {\&} Shaver, 1998) or the most complete (NEO- PI-R; Costa {\&} McCrae, 1992) and frequently used (BFI; John, Donahue, {\&} Kentle, 1991) measures of the Big Five. Moreover, most studies after Shaver and Brennan's (1992) have not compared attachment style and Big Five measures as predictors of relationship quality. Here, we summarize past research and report two studies comparing Brennan et al.'s two-dimen- sional measure of attachment style with the BFI and NEO-PI-R measures of the Big Five. There are consistent and theoretically meaningful associations between the attachment-style and personality trait measures, but attachment-style dimensions still predict relationship qual- ity better than measures of the Big Five. Implications are discussed.},
pages = {179--208},
volume = {40},
year = {2006},
date-added = {2010-06-26 11:13:43 +0200},
date-modified = {2010-07-29 19:36:11 +0200},
doi = {10.1016/j.jrp.2004.11.003},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Noftle-2006-Journal%20of%20Research%20in%20Personality_Attachment%20dimension.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13155},
rating = {0}
}

@article{Kopec:2008p7366,
author = {Jacek A Kopec and Eric C Sayre},
journal = {Journal of Clinical Epidemiology},
title = {ROC area discrimination (ROCAD) curve: a new method of evaluating the discriminating ability of ordinal scales},
abstract = {Objective: The area under the receiver operating characteristic (ROC) curve has been frequently used to assess the ability of diagnostic tests to discriminate between individuals with and without a disease. In this paper, we propose to use the ROC area to evaluate the discriminating power of ordinal measures, such as many subjective ratings or multioption questionnaire items. STUDY DESIGN AND SETTING: Applications of the method are illustrated with examples from a study designed to select multioption items for a quality-of-life questionnaire in persons with arthritis. Results: DISCRIMINATION was defined as the ability to discriminate between subjects above and below a given threshold value for the attribute being measured. The ROC curve for an ordinal scale was obtained for each observed value of the attribute and the areas under the ROC curves were estimated and plotted on a graph. The resultant curve is referred to as the ROC Area Discrimination (ROCAD) curve. In contrast to standard measures of validity for ordinal scales, such as a correlation coefficient, the ROCAD curve describes the performance of the scale for each point along the spectrum of the measured attribute. CONCLUSION: ROCAD curves can be useful in evaluating the discriminating power of ordinal scales.},
affiliation = {Department of Health Care and Epidemiology, University of British Columbia, Arthritis Research Centre of Canada, Vancouver, BC, Canada. jkopec@arthritisresearch.ca},
number = {10},
pages = {997--1003.e1},
volume = {61},
year = {2008},
month = {Oct},
language = {eng},
keywords = {Reproducibility of Results, Activities of Daily Living, Arthritis, Humans, ROC Curve, Pain Measurement, Questionnaires, Data Interpretation: Statistical},
date-added = {2010-03-10 20:31:27 +0100},
date-modified = {2010-03-10 20:31:27 +0100},
doi = {10.1016/j.jclinepi.2007.11.016},
pii = {S0895-4356(07)00448-9},
pmid = {18539430},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Kopec-2008-Journal%20of%20Clinical%20Epidemiology_ROC%20area%20discriminat.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7366},
rating = {0}
}

@article{Helmchen:2000p5594,
author = {H Helmchen and M Linden},
journal = {Compr Psychiatry},
title = {Subthreshold disorders in psychiatry: clinical reality, methodological artifact, and the double-threshold problem},
abstract = {The introduction of modern operationalized classification systems for mental disorders has led to the issue of subthreshold disorders. Definitions for illness do not at the same time define health, e.g., in the sense of the World Health Organization (WHO) definition from 1947. The threshold not only to define disorders but also to define health is open to discussion. So-called subthreshold disorders require the definition of 2 thresholds. Empirical research has suggested that these "between-threshold disorders" are associated with increased disability and many other negative consequences. Part of the problem with subthreshold disorders is methodological in nature. Psychopathology and the Gestalt characteristic of psychopathological signs are ignored, and categorical instead of dimensional concepts are used. Thus, the distinction between syndromes and disorders, as well as the hierarchical structure of disorders, is not taken into account, and statistical problems with the prognostic power, which is dependent on the epidemiological distribution, are not solved. Variations in threshold definitions have important consequences for the individual and for society, be it because of the negative effects of "diagnostic labeling" or because of the costs to the health care system. Treatment options are presently rather insufficient, although modern sequential treatment algorithms and newer treatments (e.g., selective serotonin reuptake inhibitors [SSRIs] and Saint-John's-wort) promise interesting perspectives. Also in this context, self-help should become an important area of medical treatment research.},
affiliation = {Department of Psychiatry, Free University of Berlin, Germany.},
number = {2 Suppl 1},
pages = {1--7},
volume = {41},
year = {2000},
month = {Jan},
language = {eng},
keywords = {Depressive Disorder, Psychiatric Status Rating Scales, Anxiety Disorders, Mental Disorders, World Health Organization, Humans, Psychometrics, Prognosis},
date-added = {2010-02-12 15:38:54 +0100},
date-modified = {2010-02-12 15:38:54 +0100},
pmid = {10746897},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5594},
rating = {0}
}

@article{Pigeot:2010p5048,
author = {Iris Pigeot and Stefaan De Henauw and Ronja Foraita and Ingeborg Jahn and Wolfgang Ahrens},
journal = {BMC Med Res Methodol},
title = {Primary prevention from the epidemiology perspective: Three examples from the practice},
abstract = {ABSTRACT: BACKGROUND: Primary prevention programmes are of increasing importance to reduce the impact of chronic diseases on the individual, institutional and societal level. However, most initiatives that develop and implement primary prevention programmes are not evaluated with scientific rigor. On the basis of three different projects we discuss necessary steps on the road to evidence-based primary prevention. DISCUSSION: We first discuss how to identify suitable target groups exploiting sophisticated statistical methods. This is illustrated using data from a health survey conducted in a federal state of Germany. A literature review is the more typical approach to identify target groups that is demonstrated using a European project on the prevention of childhood obesity. In the next step, modifiable risk factors and realistic targets of the intervention have to be specified. These determine the outcome measures that in turn are used for effect evaluation. Both, the target groups and the outcome measures, lay the ground for the study design and the definition of comparison groups as can be seen in our European project. This project also illustrates the development and implementation of a prevention programme. These may require active involvement of participants which can be achieved by participatory approaches taking into account the socio-cultural and living environment. Evaluation is of utmost importance for any intervention to assess structure, process and outcome according to rigid scientific criteria. Different approaches used for this are discussed and illustrated by a methodological project developed within a health promotion programme in a deprived area. Eventually the challenge of transferring an evidence-based intervention into practice and to achieve its sustainability is addressed. SUMMARY: This article describes a general roadmap to primary prevention comprising (1) the identification of target groups and settings, (2) the identification of modifiable risk factors and endpoints, (3) the development and implementation of an intervention programme, (4) the evaluation of structure, process and outcome and (5) the transfer of an evidence-based intervention into practice.},
number = {1},
pages = {10},
volume = {10},
year = {2010},
month = {Feb},
language = {ENG},
date-added = {2010-02-05 20:00:47 +0100},
date-modified = {2010-02-05 20:00:48 +0100},
doi = {10.1186/1471-2288-10-10},
pii = {1471-2288-10-10},
pmid = {20128907},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Pigeot-2010-BMC%20Med%20Res%20Methodol_Primary%20prevention%20f.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5048},
rating = {0}
}

@article{DiStefano:2009p11574,
author = {C DiStefano and M Zhu and D Mindrila},
journal = {Practical Assessment Research {\&} Evaluation},
title = {Understanding and Using Factor Scores: Considerations for the Applied Researcher},
abstract = {Following an exploratory factor analysis, factor scores may be computed and used in subsequent analyses. Factor scores are composite variables which provide information about an individual's placement on the factor(s). This article discusses popular methods to create factor scores under two different classes: refined and non-refined. Strengths and considerations of the various methods, and for using factor scores in general, are discussed.},
number = {14},
volume = {20},
year = {2009},
date-added = {2010-05-09 18:17:54 +0200},
date-modified = {2010-07-29 19:44:42 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/DiStefano-2009-Practical%20Assessment%20Research%20%20&%20Evaluation_Understanding%20and%20Us.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11574},
rating = {0}
}

@article{Gagne:2009p7671,
author = {Jeffrey R Gagne and Kimberly J Saudino},
journal = {Behav Genet},
title = {Wait For It! A Twin Study of Inhibitory Control in Early Childhood},
abstract = {Inhibitory control (IC) is a dimension of child temperament that emerges in toddlerhood and involves the ability to regulate behavior in response to instructions or expectations. In general, children with low levels of IC have more cognitive and social difficulties, and higher levels of problem behaviors. Unfortunately, there is a paucity of research on the heritability of this important behavioral dimension. The present study used a twin design to examine the extent to which genetic and environmental factors contribute to individual differences in IC. Laboratory and parent assessments of IC were conducted on 294 same-sex twin pairs (133 MZ, 161 DZ) at 24 months of age. Model-fitting analyses showed that genetic factors accounted for 38 and 58% of the variance in laboratory- and parent-rated IC, respectively. Multivariate genetic analyses also revealed that the covariance between observed and parent-assessed IC could be predominantly explained by common genetic influences.},
affiliation = {Department of Psychology, University of Wisconsin-Madison, 1202 West Johnson Street, Madison, WI, 53706-1611, USA, jgagne@wisc.edu.},
pages = {},
year = {2009},
month = {Nov},
language = {ENG},
date-added = {2010-03-15 23:45:27 +0100},
date-modified = {2010-07-29 20:09:06 +0200},
doi = {10.1007/s10519-009-9316-6},
pmid = {19936910},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Gagne-2009-Behav%20Genet_Wait%20For%20It!%20A%20Twin.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7671},
rating = {0}
}

@article{Hagell:2010p10684,
author = {Peter Hagell and Per-Johan Hedin and David M Meads and Lennart Nyberg and Stephen P McKenna},
journal = {Value Health},
title = {Effects of Method of Translation of Patient-Reported Health Outcome Questionnaires: A Randomized Study of the Translation of the Rheumatoid Arthritis Quality of Life (RAQoL) Instrument for Sweden},
abstract = {ABSTRACT Aims: To compare two versions of a questionnaire translated using forward-backward (FB) translation and dual-panel (DP) methodologies regarding preference of wording and psychometric properties. Methods: The Rheumatoid Arthritis Quality of Life instrument was adapted into Swedish by two independent groups using FB and DP methodologies, respectively. Seven out of thirty resulting items were identical. Nonidentical items were evaluated regarding preference of wording by 23 bilingual Swedes, 50 people with rheumatoid arthritis (RA), and 2 lay panels (n = 11). Psychometric performance was assessed from a postal survey of 200 people with RA randomly assigned to complete one version first and the other 2 weeks later. Results: Preference did not differ among the 23 bilinguals (P = 0.196), whereas patients and lay people preferred DP over FB item versions (P < 0.0001). Postal survey response rates were 74% (FB) and 75% (DP). There were more missing item responses in the FB than the DP version (6.9% vs. 5.6%; P < 0.0001). Floor/ceiling effects were small (FB, 6.1/0%; DP, 4.4/0.7%) and reliability was 0.92 for both versions. Construct validity was similar for both versions. Differential item functioning by version was detected for five items but cancelled out and did not affect estimated person measures. Conclusions: The DP approach showed advantages over FB translation in terms of preference by the target population and by lay people, whereas there were no obvious psychometric differences. This suggests advantages of DP over FB translation from the patients' perspective, and does not support the commonly held view that FB translation is the "gold standard."},
affiliation = {Department of Health Sciences, Lund University, Lund, Sweden.},
pages = {},
year = {2010},
month = {Jan},
language = {ENG},
date-added = {2010-04-07 11:58:54 +0200},
date-modified = {2010-04-07 11:58:54 +0200},
doi = {10.1111/j.1524-4733.2009.00677.x},
pii = {VHE677},
pmid = {20070642},
URL = {http://www3.interscience.wiley.com/journal/123236508/abstract},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p10684},
rating = {0}
}

@article{Unwin:2007p2436,
author = {A Unwin and C H Chen and W H{\"a}rdle},
title = {Computational Statistics and Data Visualization},
year = {2007},
date-added = {2010-01-11 23:45:46 +0100},
date-modified = {2010-01-11 23:46:36 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Unwin-2007-_Computational%20Statis.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2436},
rating = {0}
}

@article{Fleishman:2004p4756,
author = {J A Fleishman},
title = {Using MIMIC Models to Assess the Influence of Differential Item Functioning},
year = {2004},
date-added = {2010-02-01 12:36:34 +0100},
date-modified = {2010-06-24 17:31:34 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Fleishman-2004-_Using%20MIMIC%20Models%20t.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4756},
rating = {5}
}

@article{Zwicker:2009p5138,
author = {Jill G Zwicker and Cheryl Missiuna and Lara A Boyd},
journal = {J Child Neurol},
title = {Neural correlates of developmental coordination disorder: a review of hypotheses},
abstract = {Affecting 5% to 6% of school-age children, developmental coordination disorder is characterized by a marked impairment of motor coordination that significantly interferes with activities of daily living and academic achievement. Little is known about the etiology of developmental coordination disorder, but the disorder often coexists with attention-deficit hyperactivity disorder (ADHD), speech/language impairment, and/or reading disability. This comprehensive review examines the literature supporting or refuting hypothesized neural correlates of developmental coordination disorder and suggests directions for future research. Potential sources of neuropathology include the cerebellum, parietal lobe, corpus callosum, and basal ganglia. Comorbidities and deficits associated with developmental coordination disorder are highly suggestive of cerebellar dysfunction; yet, given the heterogeneity of this disorder, it is likely that the cerebellum is not the only neural correlate. Neuroimaging studies and behavioral investigations of learning-related change in motor behavior are the next critical step in enhancing our understanding of developmental coordination disorder.},
affiliation = {Faculty of Medicine, Rehabilitation Sciences, University of British Columbia, Vancouver, British Columbia, Canada. jzwicker@interchange.ubc.ca},
number = {10},
pages = {1273--81},
volume = {24},
year = {2009},
month = {Oct},
language = {eng},
keywords = {Motor Skills Disorders, Animals, Brain Diseases, Learning Disorders, Language Disorders, Brain, Humans, Attention Deficit Disorder with Hyperactivity},
date-added = {2010-02-05 20:19:43 +0100},
date-modified = {2010-07-29 19:32:28 +0200},
doi = {10.1177/0883073809333537},
pii = {0883073809333537},
pmid = {19687388},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5138},
rating = {0}
}

@article{Waaijenborg:2007p1557,
author = {Sandra Waaijenborg and Aeilko H Zwinderman},
journal = {BMC Proc},
title = {Penalized canonical correlation analysis to quantify the association between gene expression and DNA markers},
abstract = {Inter-individual variation in gene expression levels can arise as an effect of variation in DNA markers. When associating multiple gene expression variables with multiple DNA marker variables, multivariate techniques, such as canonical correlation analysis, should be used to deal with the effect of co-regulating genes. We adapted the elastic net, a penalized approach proposed for variable selection in regression context, to canonical correlation analysis. The number of variables within each canonical component could be greatly reduced without too much loss of information, so the canonical components become easier to interpret. Another advantage is that it groups co-regulating genes, so that they end up in the same canonical components. Furthermore, our adaptation works well in situations where the number of variables greatly exceeds the number of subjects.},
affiliation = {Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Academic Medical Center, P,O, Box 22700, 1100 DE Amsterdam, The Netherlands. s.waaijenborg@amc.uva.nl},
pages = {S122},
volume = {1 Suppl 1},
year = {2007},
month = {Jan},
language = {eng},
date-added = {2010-01-07 16:43:35 +0100},
date-modified = {2010-07-29 19:21:18 +0200},
pmid = {18466464},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Waaijenborg-2007-BMC%20Proc_Penalized%20canonical.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1557},
read = {Yes},
rating = {0}
}

@inproceedings{Bestgen:2002,
author = {Yves Bestgen and Anne-Fran{\c c}oise Cabiaux},
journal = {Proceedings},
title = {L'analyse s{\'e}mantique latente et l'identification des m{\'e}taphores},
year = {2002},
date-added = {2010-01-10 11:33:25 +0100},
date-modified = {2010-01-10 11:33:25 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Bestgen-2002-Proceedings_L'analyse%20s%C3%A9mantique.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2015},
rating = {0}
}

@article{Girardi:2009p6803,
author = {E Girardi and C Angeletti and V Puro and R Sorrentino and N Magnavita and D Vincenti and S Carrara and O Butera and A M Ciufoli and S Squarcione and G Ippolito and D Goletti},
journal = {Euro Surveill},
title = {Estimating diagnostic accuracy of tests for latent tuberculosis infection without a gold standard among healthcare workers},
abstract = {The evaluation of diagnostic accuracy of new in vitro diagnostic assays for tuberculosis infection has been hampered by the lack of a standard reference test. The aim of this study was to compare sensitivity and specificity of interferon gamma assays for latent tuberculosis infection by assessing the association of test results with tuberculosis occupational exposure and by using latent class analysis. We analysed data from 115 healthcare workers on whom tuberculin skin test (TST) and the following in vitro tests were performed: in-house ELISPOT for RD1 proteins, T.SPOT-TB and Quantiferon-TB Gold. Results of all tests were associated with increased occupational risk of exposure to Mycobacterium tuberculosis, but only TST was associated with Bacillus Calmette-Guerin (BCG) vaccination. Sensitivity/specificity (95% confidence intervals) estimated by a latent class model were: 99.9%/64.2% (53.0-74.1) for TST, 95.3% (61.8-99.6)/87.5% (78.0-93.2) for in-house ELISPOT, 96.7% (69.3-99.7)/85.6%(75.3-92.0) for T.SPOT-TB, and 76.3% (55.9-89.1)/93.6% (85.4-97.3) for Quantiferon. The estimated specificity of in vitro assays was higher than that of TST also among individuals who were not BCG-vaccinated. In conclusion, when used in healthcare workers, in vitro assays may provide a significant increase of specificity for tuberculosis infection compared to TST, even among non vaccinated individuals, at the cost of some sensitivity.},
affiliation = {Department of Epidemiology and Preclinical Research, Istituto Nazionale per le Malattie Infettive Lazzaro Spallanzani, IRCCS (National Institute for Infectious Diseases Lazzaro Spallanzani), Rome, Italy. girardi@inmi.it},
number = {43},
volume = {14},
year = {2009},
month = {Jan},
language = {eng},
keywords = {Interferon-gamma, Male, Adult, Italy, Tuberculosis, Reproducibility of Results, Humans, Medical Staff, Female, Sensitivity and Specificity},
date-added = {2010-03-05 22:31:25 +0100},
date-modified = {2010-03-05 22:31:25 +0100},
pmid = {19883555},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6803},
rating = {0}
}

@article{Muthen:2006p1228,
author = {Bengt Muth{\'e}n and Tihomir Asparouhov and Irene Rebollo},
journal = {Twin research and human genetics : the official journal of the International Society for Twin Studies},
title = {Advances in behavioral genetics modeling using Mplus: applications of factor mixture modeling to twin data},
abstract = {This article discusses new latent variable techniques developed by the authors. As an illustration, a new factor mixture model is applied to the monozygotic-dizygotic twin analysis of binary items measuring alcohol-use disorder. In this model, heritability is simultaneously studied with respect to latent class membership and within-class severity dimensions. Different latent classes of individuals are allowed to have different heritability for the severity dimensions. The factor mixture approach appears to have great potential for the genetic analyses of heterogeneous populations. Generalizations for longitudinal data are also outlined.},
affiliation = {Graduate School of Education {\&} Information Studies, University of California, Los Angeles, 90095, USA. bmuthen@ucla.edu},
number = {3},
pages = {313--24},
volume = {9},
year = {2006},
month = {Jun},
language = {eng},
keywords = {Humans, Alcoholism, Adult, Twins: Monozygotic, Psychometrics, Male, Phenotype, Software, Diseases in Twins, Models: Genetic, Twins: Dizygotic, Models: Statistical, Biometry, Australia, Genetics: Behavioral},
date-added = {2010-01-03 19:51:14 +0100},
date-modified = {2010-01-03 19:51:14 +0100},
doi = {10.1375/183242706777591317},
pmid = {16790142},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Muth%C3%A9n-2006-Twin%20research%20and%20human%20genetics%20the%20official%20journal%20of%20the%20International%20Society%20for%20Twin%20Studies_Advances%20in%20behavior.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1228},
rating = {0}
}

@article{Anonymous:2005p11755,
title = {Misinterpretations of Significance: How Significance Tests Should be Presented to Students},
year = {2005},
date-added = {2010-05-23 09:55:10 +0200},
date-modified = {2010-05-23 09:56:07 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/2005-_Misinterpretations%20o.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11755},
read = {Yes},
rating = {0}
}

@article{Cordell:2009p5279,
author = {Heather J Cordell},
journal = {Genomics},
title = {Estimation and testing of gene-environment interactions in family-based association studies},
abstract = {Gene-environment interactions are of interest in genetic association studies for several reasons. First, the power to detect genetic effects may be substantially decreased if those effects differ according to environmental exposure and if no account is taken of this interaction with environmental exposure in the analysis. Second, such interactions may indicate a phenomenon of genuine biological interest (whereby a particular genetic effect operates only in the presence of an environmental trigger, or vice versa), understanding of which can lead us to a greater understanding of possible mechanisms and pathways in disease progression. Here I discuss the testing and estimation of gene-environment interactions via the case/pseudocontrol and related approaches. As originally proposed, the case/pseudocontrol approach applies to case/parents trios with no missing genotype data. I discuss some recent extensions that allow larger pedigree structures with some missing genotype data and present computer simulations to compare the performance of several competing approaches.},
affiliation = {Institute of Human Genetics, Newcastle University, Newcastle upon Tyne NE1 3BZ, UK. heather.cordell@newcastle.ac.uk},
number = {1},
pages = {5--9},
volume = {93},
year = {2009},
month = {Jan},
language = {eng},
keywords = {Genetic Predisposition to Disease, Genotype, Environment, Humans, Models: Genetic, Computer Simulation, Child, Case-Control Studies, Pedigree, Family, Research Design, Adult},
date-added = {2010-02-09 22:28:40 +0100},
date-modified = {2010-02-09 22:28:40 +0100},
doi = {10.1016/j.ygeno.2008.05.002},
pii = {S0888-7543(08)00095-5},
pmid = {18538979},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5279},
rating = {0}
}

@article{Distel:2009p7010,
author = {Marijn A Distel and Irene Rebollo-Mesa and Gonneke Willemsen and Catherine A Derom and Timothy J Trull and Nicholas G Martin and Dorret I Boomsma},
journal = {PLoS ONE},
title = {Familial resemblance of borderline personality disorder features: genetic or cultural transmission?},
abstract = {Borderline personality disorder is a severe personality disorder for which genetic research has been limited to family studies and classical twin studies. These studies indicate that genetic effects explain 35 to 45% of the variance in borderline personality disorder and borderline personality features. However, effects of non-additive (dominance) genetic factors, non-random mating and cultural transmission have generally not been explored. In the present study an extended twin-family design was applied to self-report data of twins (N = 5,017) and their siblings (N = 1,266), parents (N = 3,064) and spouses (N = 939) from 4,015 families, to estimate the effects of additive and non-additive genetic and environmental factors, cultural transmission and non-random mating on individual differences in borderline personality features. Results showed that resemblance among biological relatives could completely be attributed to genetic effects. Variation in borderline personality features was explained by additive genetic (21%; 95% CI 17-26%) and dominant genetic (24%; 95% CI 17-31%) factors. Environmental influences (55%; 95% CI 51-60%) explained the remaining variance. Significant resemblance between spouses was observed, which was best explained by phenotypic assortative mating, but it had only a small effect on the genetic variance (1% of the total variance). There was no effect of cultural transmission from parents to offspring.},
affiliation = {Department of Biological Psychology, VU University Amsterdam, Amsterdam, The Netherlands. ma.distel@psy.vu.nl},
number = {4},
pages = {e5334},
volume = {4},
year = {2009},
month = {Jan},
language = {eng},
keywords = {Borderline Personality Disorder, Models: Genetic, Male, Phenotype, Female, Twins, Humans, Social Environment, Cultural Characteristics, Genetic Variation},
date-added = {2010-03-06 19:46:35 +0100},
date-modified = {2010-03-06 19:46:35 +0100},
doi = {10.1371/journal.pone.0005334},
pmid = {19390632},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Distel-2009-PLoS%20ONE_Familial%20resemblance.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p7010},
rating = {0}
}

@article{Wickham:2006p10901,
author = {H Wickham},
title = {Exploratory model analysis with R and GGobi},
year = {2006},
date-added = {2010-04-11 13:48:11 +0200},
date-modified = {2010-04-11 13:48:31 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Wickham-2006-_Exploratory%20model%20an.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p10901},
rating = {0}
}

@article{Burns:2006p2322,
author = {P Burns},
journal = {Statistical Consulting Group: UCLA Academic Technology Services},
title = {R Relative to Statistical Packages: Comment 1 on Technical Report Number 1 (Version 1.0) Strategically using General Purpose Statistics Packages: A Look at Stata, SAS and SPSS},
year = {2006},
date-added = {2010-01-10 12:45:13 +0100},
date-modified = {2010-01-10 12:46:50 +0100},
URL = {http://www.ats.ucla.edu/stat/technicalreports/},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Burns-2006-Statistical%20Consulting%20Group%20UCLA%20Academic%20Technology%20Services_R%20Relative%20to%20Statis.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2322},
rating = {0}
}

@article{deLeeuw:1985p13753,
author = {Jan de Leeuw},
title = {The permutational limit distribution of generalized canonical correlations},
year = {1985},
date-added = {2010-07-24 12:44:54 +0200},
date-modified = {2010-07-29 20:45:39 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/de%20Leeuw-1985-_The%20permutational%20li.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13753},
rating = {0}
}

@article{Casey:2004p4393,
author = {Patricia Casey and Gail Birbeck and Catherine McDonagh and Ann Horgan and Chris Dowrick and Odd Dalgard and Ville Lethinen and Jose Luis Ayuso-Mateos and Graham Dunn and Helen Page and Claire Wilkinson and Greg Wilkinson and Jose Luis Vazquez-Barquero and ODIN Group},
journal = {J Affect Disord},
title = {Personality disorder, depression and functioning: results from the ODIN study},
abstract = {BACKGROUND: There is little information of the prevalence of personality disorder (PD) in those with depressive disorder in community samples; neither is there any data on the impact of PD on service utilisation or outcome in this setting. METHODS: A two stage screening study to identify cases of depressive disorder using SCAN in five European countries. Personality assessed 6 months after the diagnostic interview. Follow-up for 1 year using symptom and social function measures. RESULTS: Personality disorder is present in 22% of a community sample with depressive disorders but the range varied from 13.7% to 33.3% across countries. Cluster C formed 43% of the total. Long-term psychotropic drug use was more common in the PD group even after depression was controlled. Those with PD had higher symptom scores at the outset and, although the PD group was more likely to be cases at follow-up, this disappeared when the depression score was co-varied. Only initial social function predicted outcome at 6 and 12 months. LIMITATIONS: The use of a non-treatment seeking population may limit the application of the findings to clinical populations. CONCLUSIONS: PD is common even in a non-treatment seeking population with depressive disorder. It impacts upon outcome at 6 and 12 months but this is related to the initial severity of depressed mood. Social function is the only independent predictor of outcome and should be assessed separately.},
affiliation = {Mater Misericordiae Hospital, Department of Psychiatry/University College Dublin, Eccles St., Dublin 7, Ireland. apsych@mater.ie},
number = {2},
pages = {277--83},
volume = {82},
year = {2004},
month = {Oct},
language = {eng},
keywords = {Bipolar Disorder, Depressive Disorder, Female, Adult, Male, Outcome Assessment (Health Care), Drug Utilization, Socioeconomic Factors, Primary Health Care, Middle Aged, Cross-Cultural Comparison, Personality Disorders, Activities of Daily Living, Adolescent, Adjustment Disorders, Psychotropic Drugs, Utilization Review, Humans, Mass Screening, Social Adjustment, Comorbidity, Personality Assessment},
date-added = {2010-01-28 16:31:55 +0100},
date-modified = {2010-01-28 16:31:55 +0100},
doi = {10.1016/j.jad.2003.11.009},
pii = {S0165032703003136},
pmid = {15488258},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4393},
rating = {0}
}

@article{Mislevy:2001p4259,
author = {R J Mislevy and L S Steinberg and R G Almond and F J Breyer and L Johnson},
title = {Making sense of data from complex assessments},
year = {2001},
date-added = {2010-01-23 21:07:26 +0100},
date-modified = {2010-01-23 21:08:24 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Mislevy-2001-_Making%20sense%20of%20data.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4259},
rating = {0}
}

@article{Prasad:2008p13272,
author = {Konasale M Prasad and Matcheri S Keshavan},
journal = {Schizophr Bull},
title = {Structural cerebral variations as useful endophenotypes in schizophrenia: do they help construct "extended endophenotypes"?},
abstract = {Endophenotypes represent intermediate phenotypes on the putative causal pathway from the genotype to the phenotype. They offer a potentially valuable strategy to examine the molecular etiopathology of complex behavioral phenotypes such as schizophrenia. Neurocognitive and neurophysiological impairments that suggest functional impairments associated with schizophrenia have been proposed as endophenotypes. However, few studies have examined the structural variations in the brain that might underlie the functional impairments as useful endophenotypes for schizophrenia. Over the past three decades, there has been an impressive body of literature supporting brain structural alterations in schizophrenia. We critically reviewed the extant literature on the neuroanatomical variations in schizophrenia in this paper to evaluate their candidacy as endophenotypes and how useful they are in furthering the understanding of etiology and pathophysiology of schizophrenia. Brain morphometric measures meet many of the criteria set by different investigators, such as being robustly associated with schizophrenia, heritable, quantifiable, and present in unaffected family members more frequently than in the general population. We conclude that the brain morphometric alterations appear largely to meet the criteria for endophenotypes in psychotic disorders. Some caveats for the utility of endophenotypes are discussed. A proposal to combine more than one endophenotype ("extended endophenotype") is suggested. Further work is needed to examine how specific genes and their interactions with the environment may produce alterations in brain structure and function that accompany psychotic disorders.},
affiliation = {Western Psychiatric Institute and Clinic, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA.},
number = {4},
pages = {774--90},
volume = {34},
year = {2008},
month = {Jul},
language = {eng},
keywords = {Family, Evoked Potentials: Auditory, Startle Reaction, Humans, Magnetic Resonance Imaging, Phenotype, Schizophrenia, Cognition Disorders, Brain, Bipolar Disorder, Genotype, Genetic Predisposition to Disease, Schizophrenic Psychology, Event-Related Potentials: P300, Diseases in Twins, Biological Markers, Genetic Variation},
date-added = {2010-07-01 18:23:03 +0200},
date-modified = {2010-07-29 19:50:01 +0200},
doi = {10.1093/schbul/sbn017},
pii = {sbn017},
pmid = {18408230},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Prasad-2008-Schizophr%20Bull_Structural%20cerebral.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13272},
rating = {0}
}

@article{deGeus:2001p12625,
author = {E J de Geus and M J Wright and N G Martin and Dorret I Boomsma},
journal = {Behav Genet},
title = {Genetics of brain function and cognition},
abstract = {There is overwhelming evidence for the existence of substantial genetic influences on individual differences in general and specific cognitive abilities, especially in adults. The actual localization and identification of genes underlying variation in cognitive abilities and intelligence has only just started, however. Successes are currently limited to neurological mutations with rather severe cognitive effects. The current approaches to trace genes responsible for variation in the normal ranges of cognitive ability consist of large scale linkage and association studies. These are hampered by the usual problems of low statistical power to detect quantitative trait loci (QTLs) of small effect. One strategy to boost the power of genomic searches is to employ endophenotypes of cognition derived from the booming field of cognitive neuroscience. This special issue of Behavior Genetics reports on one of the first genome-wide association studies for general IQ. A second paper summarizes candidate genes for cognition, based on animal studies. A series of papers then introduces two additional levels of analysis in the "black box" between genes and cognitive ability: (1) behavioral measures of information-processing speed (inspection time, reaction time, rapid naming) and working memory capacity (performance on on single or dual tasks of verbal and spatio-visual working memory), and (2) electrophyiosological derived measures of brain function (e.g., event-related potentials). The obvious way to assess the reliability and validity of these endophenotypes and their usefulness in the search for cognitive ability genes is through the examination of their genetic architecture in twin family studies. Papers in this special issue show that much of the association between intelligence and speed-of-information processing/brain function is due to a common gene or set of genes, and thereby demonstrate the usefulness of considering these measures in gene-hunting studies for IQ.},
number = {6},
pages = {489--95},
volume = {31},
year = {2001},
month = {Nov},
language = {eng},
keywords = {Twin Studies as Topic, Humans, Quantitative Trait: Heritable, Phenotype, Brain, Twins, Intelligence},
date-added = {2010-06-15 22:37:58 +0200},
date-modified = {2010-07-29 20:25:51 +0200},
pmid = {11838528},
local-url = {file://localhost/Users/chl/Dropbox/Papers/de%20Geus-2001-Behav%20Genet_Genetics%20of%20brain%20fu.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12625},
rating = {0}
}

@phdthesis{Komarek:2004,
author = {P Komarek},
journal = {PhD Thesis},
title = {Logistic Regression for Data Mining and High-Dimensional Classification},
affiliation = {Carnegie Mellon University},
year = {2004},
date-added = {2010-01-10 11:33:17 +0100},
date-modified = {2010-01-10 11:33:25 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Komarek-2004-PhD%20Thesis_Logistic%20Regression.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2143},
rating = {0}
}

@article{Stone:2004p2681,
author = {C A Stone},
journal = {Applied Psychological Measurement},
title = {IRTFIT-RESAMPLE: A Computer Program for Assessing Goodness of Fit of Item Response Theory Models Based on Posterior Expectations},
number = {2},
pages = {143--144},
volume = {28},
year = {2004},
date-added = {2010-01-13 09:58:03 +0100},
date-modified = {2010-07-29 19:16:53 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Stone-2004-Applied%20Psychological%20Measurement_IRTFIT-RESAMPLE%20A%20C.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2681},
rating = {0}
}

@article{Rosipal:2003p4755,
author = {R Rosipal},
title = {Kernel Partial Least Squares for Nonlinear Regression and Discrimination},
abstract = {This paper summarizes recent results on applying the method of par- tial least squares (PLS) in a reproducing kernel Hilbert space (RKHS). A previously proposed nonlinear kernel-based PLS regression model has proven to be competitive with other regularized regression methods in RKHS. In this paper the use of kernel PLS for discrimination is discussed. A new methodology for classification is then proposed. This is based on kernel PLS dimensionality reduction of the original data space followed by a support vector classifier. Good results using this method on a two-class classification problem are reported here.},
year = {2003},
date-added = {2010-02-01 12:09:31 +0100},
date-modified = {2010-02-01 12:09:59 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Rosipal-2003-_Kernel%20Partial%20Least.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4755},
rating = {0}
}

@article{Hoefling:2009p12314,
author = {H Hoefling},
title = {Supplement to A path algorithm for the Fused Lasso Signal Approximator},
year = {2009},
date-added = {2010-06-12 09:33:39 +0200},
date-modified = {2010-06-12 09:34:14 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Hoefling-2009-_Supplement%20to%20A%20path.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12314},
rating = {0}
}

@article{vanBuuren:2007p13982,
author = {Stef van Buuren},
journal = {Stat Methods Med Res},
title = {Multiple imputation of discrete and continuous data by fully conditional specification},
abstract = {The goal of multiple imputation is to provide valid inferences for statistical estimates from incomplete data. To achieve that goal, imputed values should preserve the structure in the data, as well as the uncertainty about this structure, and include any knowledge about the process that generated the missing data. Two approaches for imputing multivariate data exist: joint modeling (JM) and fully conditional specification (FCS). JM is based on parametric statistical theory, and leads to imputation procedures whose statistical properties are known. JM is theoretically sound, but the joint model may lack flexibility needed to represent typical data features, potentially leading to bias. FCS is a semi-parametric and flexible alternative that specifies the multivariate model by a series of conditional models, one for each incomplete variable. FCS provides tremendous flexibility and is easy to apply, but its statistical properties are difficult to establish. Simulation work shows that FCS behaves very well in the cases studied. The present paper reviews and compares the approaches. JM and FCS were applied to pubertal development data of 3801 Dutch girls that had missing data on menarche (two categories), breast development (five categories) and pubic hair development (six stages). Imputations for these data were created under two models: a multivariate normal model with rounding and a conditionally specified discrete model. The JM approach introduced biases in the reference curves, whereas FCS did not. The paper concludes that FCS is a useful and easily applied flexible alternative to JM when no convenient and realistic joint distribution can be specified.},
affiliation = {TNO Quality of Life, Leiden, The Netherlands and University of Utrecht, The Netherlands. stef.vanbuuren@tno.nl},
number = {3},
pages = {219--42},
volume = {16},
year = {2007},
month = {Jun},
language = {eng},
keywords = {Netherlands, Data Interpretation: Statistical, Biomedical Research, Bias (Epidemiology), Child, Female, Humans, Adolescent, Adult, Models: Statistical, Male, Growth and Development},
date-added = {2010-07-30 21:33:05 +0200},
date-modified = {2010-07-30 21:33:05 +0200},
doi = {10.1177/0962280206074463},
pii = {16/3/219},
pmid = {17621469},
local-url = {file://localhost/Users/chl/Dropbox/Papers/van%20Buuren-2007-Stat%20Methods%20Med%20Res_Multiple%20imputation.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13982},
rating = {0}
}

@article{Toores:2008p1850,
author = {G J Toores and R B Basnet and A H Sung and S Mukkamala and B M Ribeiro},
journal = {Proceedings of World Academy of Science, Engineering and Technology},
title = {A Similarity Measure for Clustering and its Applications},
abstract = {This paper introduces a measure of similarity between two clusterings of the same dataset produced by two different algorithms, or even the same algorithm (K-means, for instance, with different initializations usually produce different results in clustering the same dataset). We then apply the measure to calculate the similarity between pairs of clusterings, with special interest directed at comparing the similarity between various machine clusterings and human clustering of datasets. The similarity measure thus can be used to identify the best (in terms of most similar to human) clustering algorithm for a specific problem at hand. Experimental results pertaining to the text categorization problem of a Portuguese corpus (wherein a translation-into-English approach is used) are presented, as well as results on the well-known benchmark IRIS dataset. The significance and other potential applications of the proposed measure are discussed.},
pages = {490--496},
volume = {31},
year = {2008},
date-added = {2010-01-10 11:19:13 +0100},
date-modified = {2010-01-10 11:21:24 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Toores-2008-Proceedings%20of%20World%20Academy%20of%20Science%20Engineering%20and%20Technology_A%20Similarity%20Measure.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1850},
rating = {0}
}

@article{Boomsma:2000p2923,
author = {A Boomsma},
journal = {Structural Equation Modeling},
title = {Reporting Analyses of Covariance Structures},
abstract = {This contribution is focused on how to write a research paper when structural equation models are being used in empirical work. The main question to be answered is what information should be reported and what results can be deleted without much loss of judgment about the quality of research and the validity of conclusions being made. The major conjecture is that all information should be reported, or referred to, that enables each member of the scientific community, at least in principle, to replicate the analysis as it is published. The recommendations are ordered in the framework of the empirical research cycle. They are meant for authors, in particular students employing structural equation models for their dissertation, as well as for editors and reviewers.},
affiliation = {Department of Statistics, Measurement Theory {\&} Information Technology University of Groningen},
number = {3},
pages = {461--483},
volume = {7},
year = {2000},
date-added = {2010-01-13 22:09:38 +0100},
date-modified = {2010-07-29 19:51:13 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Boomsma-2000-Structural%20Equation%20Modeling_Reporting%20Analyses%20o.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2923},
rating = {0}
}

@article{Gonen:2006p3698,
author = {M G{\"o}nen},
journal = {SUGI 31},
title = {Receiver Operating Characteristic (ROC) Curves},
abstract = {Assessment of predictive accuracy is a critical aspect of evaluating and comparing models, algorithms or technologies that produce the predictions. In the field of medical diagnosis, receiver operating characteristic (ROC) curves have become the standard tool for this purpose and its use is becoming increasingly common in other fields such as finance, atmospheric science and machine learning. There are surprisingly few built-in options in SAS for ROC curves, but several procedures in SAS/STAT can be tailored with little effort to produce a wide variety of ROC analyses. This talk will focus on the use of SAS/STAT procedures FREQ, LOGISTIC, MIXED and NLMIXED to perform ROC analyses, including estimation of sensitivity and specificity, estimation of an ROC curve and computing the area under the ROC curve. In addition, several macros will be introduced to facilitate graphical presentation and complement existing statistical capabilities of SAS with regard to ROC curves. Real data from clinical applications will be used to demonstrate the methods.},
year = {2006},
date-added = {2010-01-16 20:50:57 +0100},
date-modified = {2010-01-16 20:51:31 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/G%C3%B6nen-2006-SUGI%2031_Receiver%20Operating%20C.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3698},
rating = {0}
}

@article{Morgan:2005p4745,
author = {S L Morgan and D J Harding},
title = {Matching Estimators of Causal Effects: From Stratification and Weighting to Practical Data Analysis Routines},
abstract = {As the counterfactual model of causality has increased in popularity, sociologists have returned to matching as a research methodology. In this paper, advances over the past two decadesinmatchingestimatorsareexplained. Afterpresentingthefundamentalconceptsofthe counterfactual model of causality, we introduce matching methods by focusing first on ideal scenarios in which stratification and reweighting procedures can warrant causal inference. Then, we discuss how matching is often undertaken in practice, offering an overview of various algorithms. Finally, we discuss how the assumptions behind matching estimators can break down in practice. In conclusion, we outline some practical advice on matching, and discuss the combination of matching with regression methods.},
year = {2005},
date-added = {2010-02-01 11:38:43 +0100},
date-modified = {2010-02-01 11:39:51 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Morgan-2005-_Matching%20Estimators.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4745},
rating = {0}
}

@article{CabreroGarcia:2008p10564,
author = {Julio Cabrero-Garc{\'\i}a and Jos{\'e} Antonio L{\'o}pez-Pina},
journal = {Qual Life Res},
title = {Aggregated measures of functional disability in a nationally representative sample of disabled people: analysis of dimensionality according to gender and severity of disability},
abstract = {OBJECTIVE: To determine (i) the dimensional invariance of instrumental and basic activities of daily living (IADL/ADL) by gender subgroups, and (ii) the extent to which ADL dimensionality varies with the inclusion or exclusion of nondisabled people. METHODS: Data were taken from the 1999 Spanish Survey on Disability, Impairment and State of Health. The analysis focussed on 6,522 people aged over 65 years who received help to perform or were unable to perform IADL/ADL items. Unidimensional and multidimensional item response theory (IRT) models were applied to this sample. RESULTS: In the female sample, IADL/ADL items formed a scale with sufficient unidimensionality to fit a two-parameter logistic IRT model. In the male sample, the structure was bidimensional: self-care and mobility, and household activities. When the sample was composed of IADL/ADL disabled people, ADL items formed a unidimensional scale; when it was composed only of ADL disabled people, they formed a bidimensional structure: self-care and mobility. CONCLUSIONS: IADL/ADL items can be combined in a single scale to measure severity of functional disability in females, but not in males. Separate aggregated scores must be considered for each subdomain, basic mobility and self-care, in order to measure the severity of ADL disability.},
affiliation = {Department of Nursing, University of Alicante, Campus de San Vicente del Raspeig, Ap. 99, 03080 Alicante, Spain. julio.cabrero@ua.es},
number = {3},
pages = {425--36},
volume = {17},
year = {2008},
month = {Apr},
language = {eng},
keywords = {Aged: 80 and over, Health Surveys, Male, Spain, Aged, Sex Factors, Health Status Indicators, Activities of Daily Living, Logistic Models, Disabled Persons, Disability Evaluation, Female, Severity of Illness Index, Models: Statistical, Humans},
date-added = {2010-04-07 11:34:50 +0200},
date-modified = {2010-07-29 19:48:29 +0200},
doi = {10.1007/s11136-008-9313-x},
pmid = {18264797},
URL = {http://www.springerlink.com/content/04n67475357t2115/},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Cabrero-Garc%C3%ADa-2008-Qual%20Life%20Res_Aggregated%20measures.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p10564},
rating = {4}
}

@article{Myhren:2010p13056,
author = {Hilde Myhren and {\O}ivind Ekeberg and Olav Stokland},
journal = {Crit Care Med},
title = {Health-related quality of life and return to work after critical illness in general intensive care unit patients: a 1-year follow-up study},
abstract = {OBJECTIVE: To study how health-related quality of life of intensive care unit survivors compares with the general population, changes over time, and association with an optimistic personality trait and posttraumatic stress. Further, to explore differences in health-related quality of life between medical, trauma, and surgical patients and to assess return to work/school at 1 yr. DESIGN: Prospective 1-yr follow-up study. SETTING: University-affiliated trauma center hospital. PATIENTS: At 1-yr, 194 patients participated. Mean age was 49 yrs and 60% were males. MEASUREMENTS AND MAIN RESULTS: Health-related quality of life was assessed by the Short Form 36, which measures health-related quality of life in eight separate dimensions (0=worst health state, 100=best health state). At 1 yr, significantly lower scores compared to the general population were seen in all eight scales (p<.001). The decrease in Short Form 36 scores between before intensive care unit and 1-yr measurements was significant for all eight dimensions (p<.01). The multivariate regression analyses adjusted for gender, age (beta, -0.3), optimism (beta, 0.9), medical disease (beta, 12.2), length of stay in intensive care unit (beta, -0.4), being employed/student/retired before intensive care unit stay (beta, 12.5), and posttraumatic stress symptoms (beta, -9.1; all p<.05) were independent predictors of the dimension physical functioning (adjusted r=.22). For mental health, adjusted for age and gender, independent predictors were optimism (beta, 1.4), being employed/student/retired before intensive care unit stay (beta, 14.9), and posttraumatic stress symptoms (beta, -11.6; all p<.001; adjusted r=.35). Before intensive care unit admission, 122 (63%) patients were students/working, among these, 67 (55%) had returned to work/school at 1-yr follow-up. CONCLUSION: Intensive care unit survivors had significantly lower health-related quality of life at 1 yr compared to the general population and significantly reduced compared to their states before intensive care unit admission. Less posttraumatic stress and optimism were predictors of higher health-related quality of life and return to work/school. Trauma patients had the largest decrease in both physical and mental scores. Only half of the patients had returned to work/school.},
affiliation = {Intensive Care Unit, Department of Acute Medicine, Ullev{\aa}l, Oslo University Hospital and Department of Behavioural Sciences in Medicine, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, Norway. himy@uus.no},
number = {7},
pages = {1554--61},
volume = {38},
year = {2010},
month = {Jul},
language = {eng},
date-added = {2010-06-26 10:17:40 +0200},
date-modified = {2010-06-26 10:17:40 +0200},
doi = {10.1097/CCM.0b013e3181e2c8b1},
pmid = {20473149},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p13056},
rating = {0}
}

@article{Demidenko:2008p6909,
author = {Eugene Demidenko},
journal = {Stat Med},
title = {Sample size and optimal design for logistic regression with binary interaction},
abstract = {There is no consensus on what test to use as the basis for sample size determination and power analysis. Some authors advocate the Wald test and some the likelihood-ratio test. We argue that the Wald test should be used because the Z-score is commonly applied for regression coefficient significance testing and therefore the same statistic should be used in the power function. We correct a widespread mistake on sample size determination when the variance of the maximum likelihood estimate (MLE) is estimated at null value. In our previous paper, we developed a correct sample size formula for logistic regression with single exposure (Statist. Med. 2007; 26(18):3385-3397). In the present paper, closed-form formulas are derived for interaction studies with binary exposure and covariate in logistic regression. The formula for the optimal control-case ratio is derived such that it maximizes the power function given other parameters. Our sample size and power calculations with interaction can be carried out online at www.dartmouth.edu/ approximately eugened.},
affiliation = {Dartmouth Medical School, Hanover, NH 03755, U.S.A. eugened@dartmouth.edu},
number = {1},
pages = {36--46},
volume = {27},
year = {2008},
month = {Jan},
language = {eng},
keywords = {Genetics, Logistic Models, Environment, Humans, Case-Control Studies, Sample Size, Research Design, Asthma, Likelihood Functions},
date-added = {2010-03-06 12:23:12 +0100},
date-modified = {2010-03-06 12:23:12 +0100},
doi = {10.1002/sim.2980},
pmid = {17634969},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Demidenko-2008-Stat%20Med_Sample%20size%20and%20opti.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6909},
rating = {0}
}

@misc{Jansen:2007,
author = {I Jansen and G Molenberghs},
journal = {Miscellaneous},
title = {Modelling strategies for longitudinal data with missingness},
year = {2007},
date-added = {2010-01-03 19:37:35 +0100},
date-modified = {2010-07-29 19:40:14 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Jansen-2007-Miscellaneous_Modelling%20strategies.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1100},
rating = {0}
}

@article{Roberson:1995p14212,
author = {Paula K Roberson and Sarah J Shema and Daniel J Mundfrom and Talmage M Holmes},
journal = {Family Medicine},
title = {Analyse of paired Likert data: How to evaluate change and preference questions},
number = {10},
pages = {671--675},
volume = {27},
year = {1995},
date-added = {2010-08-22 20:27:02 +0200},
date-modified = {2010-08-22 20:28:53 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Roberson-1995-Family%20Medicine_Analyse%20of%20paired%20Li.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p14212},
rating = {0}
}

@article{Foddy:1998,
author = {W Foddy},
journal = {Sociological Methods {\&} Research},
title = {An empirical evaluation of in-depth probes used to pretest survey questions},
abstract = {A growing number of survey methodologists have advocated the use of in-depth probes for identifying comprehension problems, inadequate response categories, the perspectives adopted by respondents, and the strategies respondents employ when retrieving information from memory. This article reports the results of an empirical evaluation of the relative effectiveness of a number of the probes that have been used for the first three of these tasks. This work confirms that the traditional practice of field testing a questionnaire on a subsample drawn from the population of interest is not an effective way of detecting shortcomings in survey questions. It also indicates that the effectiveness of a probe is directly related to its specificity; the most effective comprehension probes are those directed at exploring the ways in which respondents interpret key concepts; probes designed to get at respondents' interpretations of key concepts are the most effective means of identifying perspectives respondents have adopted; and well-educated respondents are most likely to make substantive responses to in-depth probes.},
pages = {103--133},
volume = {27},
year = {1998},
date-added = {2010-01-03 19:34:17 +0100},
date-modified = {2010-07-29 19:50:37 +0200},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p957},
rating = {0}
}

@article{Verkuilen:2005p6251,
author = {J Verkuilen},
journal = {Sociological Methods {\&} Research},
title = {Assigning Membership in a Fuzzy Set Analysis},
abstract = {This article provides a largely nontechnical discussion of the acquisition of membership values in fuzzy set analyses. First the basic properties of a membership are discussed. Then the three common strategies of membership assignment---direct subjective assign- ment, indirect subjective assignment, and transformation---are critically examined in turn. Examples are used to illustrate the techniques. The connection with existing psy- chometric and statistical methods is particularly emphasized, focusing on the notion of a membership value as a random variable as a means to assess uncertainty in assignment.},
number = {4},
pages = {462--496},
volume = {33},
year = {2005},
date-added = {2010-02-19 21:26:59 +0100},
date-modified = {2010-07-29 19:50:37 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Verkuilen-2005-Sociological%20Methods%20&%20Research_Assigning%20Membership.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p6251},
rating = {0}
}

@article{Bilder:2009p4074,
author = {Robert M Bilder and Fred W Sabb and D Stott Parker and Donald Kalar and Wesley W Chu and Jared Fox and Nelson B Freimer and Russell A Poldrack},
journal = {Cogn Neuropsychiatry},
title = {Cognitive ontologies for neuropsychiatric phenomics research},
abstract = {Now that genome-wide association studies (GWAS) are dominating the landscape of genetic research on neuropsychiatric syndromes, investigators are being faced with complexity on an unprecedented scale. It is now clear that phenomics, the systematic study of phenotypes on a genome-wide scale, comprises a rate-limiting step on the road to genomic discovery. To gain traction on the myriad paths leading from genomic variation to syndromal manifestations, informatics strategies must be deployed to navigate increasingly broad domains of knowledge and help researchers find the most important signals. The success of the Gene Ontology project suggests the potential benefits of developing schemata to represent higher levels of phenotypic expression. Challenges in cognitive ontology development include the lack of formal definitions of key concepts and relations among entities, the inconsistent use of terminology across investigators and time, and the fact that relations among cognitive concepts are not likely to be well represented by simple hierarchical "tree" structures. Because cognitive concept labels are labile, there is a need to represent empirical findings at the cognitive test indicator level. This level of description has greater consistency, and benefits from operational definitions of its concepts and relations to quantitative data. Considering cognitive test indicators as the foundation of cognitive ontologies carries several implications, including the likely utility of cognitive task taxonomies. The concept of cognitive "test speciation" is introduced to mark the evolution of paradigms sufficiently unique that their results cannot be "mated" productively with others in meta-analysis. Several projects have been initiated to develop cognitive ontologies at the Consortium for Neuropsychiatric Phenomics (www.phenomics.ucla.edu), in the hope that these ultimately will enable more effective collaboration, and facilitate connections of information about cognitive phenotypes to other levels of biological knowledge. Several free web applications are available already to support examination and visualisation of cognitive concepts in the literature (PubGraph, PubAtlas, PubBrain) and to aid collaborative development of cognitive ontologies (Phenowiki and the Cognitive Atlas). It is hoped that these tools will help formalise inference about cognitive concepts in behavioural and neuroimaging studies, and facilitate discovery of the genetic bases of both healthy cognition and cognitive disorders.},
affiliation = {Jane {\&} Terry Semel Institute for Neuroscience {\&} Human Behavior at UCLA, Los Angeles, CA 90095, USA. rbilder@mednet.ucla.edu},
number = {4-5},
pages = {419--50},
volume = {14},
year = {2009},
month = {Jan},
language = {eng},
keywords = {Nervous System Diseases, Mental Disorders, Cognition Disorders, Humans, Phenotype, Terminology as Topic, Cognition},
date-added = {2010-01-19 15:51:38 +0100},
date-modified = {2010-01-19 15:51:38 +0100},
doi = {10.1080/13546800902787180},
pii = {913383678},
pmid = {19634038},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p4074},
rating = {0}
}

@article{Winkler:2009p12280,
author = {Anderson M Winkler and Peter Kochunov and John Blangero and Laura Almasy and Karl Zilles and Peter T Fox and Ravindranath Duggirala and David C Glahn},
journal = {Neuroimage},
title = {Cortical thickness or grey matter volume? The importance of selecting the phenotype for imaging genetics studies},
abstract = {Choosing the appropriate neuroimaging phenotype is critical to successfully identify genes that influence brain structure or function. While neuroimaging methods provide numerous potential phenotypes, their role for imaging genetics studies is unclear. Here we examine the relationship between brain volume, grey matter volume, cortical thickness and surface area, from a genetic standpoint. Four hundred and eighty-six individuals from randomly ascertained extended pedigrees with high-quality T1-weighted neuroanatomic MRI images participated in the study. Surface-based and voxel-based representations of brain structure were derived, using automated methods, and these measurements were analysed using a variance-components method to identify the heritability of these traits and their genetic correlations. All neuroanatomic traits were significantly influenced by genetic factors. Cortical thickness and surface area measurements were found to be genetically and phenotypically independent. While both thickness and area influenced volume measurements of cortical grey matter, volume was more closely related to surface area than cortical thickness. This trend was observed for both the volume-based and surface-based techniques. The results suggest that surface area and cortical thickness measurements should be considered separately and preferred over gray matter volumes for imaging genetic studies.},
affiliation = {Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA; Olin Neuropsychiatry Research Center, The Institute of Living, Hartford, CT, USA.},
pages = {},
year = {2009},
month = {Dec},
language = {ENG},
date-added = {2010-06-09 20:10:40 +0200},
date-modified = {2010-07-11 09:37:49 +0200},
doi = {10.1016/j.neuroimage.2009.12.028},
pii = {S1053-8119(09)01316-0},
pmid = {20006715},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Winkler-2009-Neuroimage_Cortical%20thickness%20o-1.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p12280},
rating = {3}
}

@article{Jones:1994,
author = {P Jones and B Rodgers and R Murray and M Marmot},
journal = {Lancet},
title = {Child development risk factors for adult schizophrenia in the British 1946 birth cohort},
abstract = {Schizophrenia has been linked with childhood psychological abnormalities since it was first described, but studies of associations have not used population samples and so may be subject to bias. We have studied associations between adult-onset schizophrenia and childhood sociodemographic, neurodevelopmental, cognitive, and behavioural factors within a cohort of 5362 people born in the week March 3-9, 1946. Childhood data were gathered prospectively and case ascertainment was independent of routine follow-up of this cohort. 30 cases of schizophrenia arose between ages 16 and 43 years (cumulative risk 0.63% [95% CI 0.41-0.86%]). Milestones of motor development were reached later in cases than in controls, particularly walking (difference in means 1.2 months [0.1-2.3], p = 0.005), and up to age 15, cases had more speech problems than had controls (odds ratio 2.8 [0.9-7.8], p = 0.04). Low educational test scores at ages 8, 11, and 15 years were a risk factor, with significant linear trends across population distributions; risk was not confined to very low scores. Solitary play preference at ages 4 and 6 years predicted schizophrenia (odds ratios 2.1, 2.5, p = 0.05). At 13 years cases rated themselves as less socially confident (p for trend, 0.04). At 15 years, teachers rated cases as being more anxious in social situations (p for trend 0.003), independent of intelligence quotient. A health visitor's rating of the mother as having below average mothering skills and understanding of her child at age 4 years was a predictor of schizophrenia in that child (odds ratio 5.8 [0.8-31.8], p = 0.02). Differences between children destined to develop schizophrenia as adults and the general population were found across a range of developmental domains. As with some other adult illnesses, the origins of schizophrenia may be found in early life.},
number = {8934},
pages = {1398--1402},
volume = {344},
year = {1994},
date-added = {2010-01-03 19:36:10 +0100},
date-modified = {2010-07-29 19:38:44 +0200},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1086},
rating = {0}
}

@article{Yacubian:2009p3075,
author = {J Yacubian and C B{\"u}chel},
journal = {Neuroscience},
title = {The genetic basis of individual differences in reward processing and the link to addictive behavior and social cognition},
abstract = {Dopaminergic neurotransmission is widely recognized to be critical to the neurobiology of reward, motivation and addiction. Interestingly, social interactions and related behavior also activate the same neuronal system. Consequently, genetic variations of dopamine neurotransmission are thought influence reward processing that in turn may affect distinctive social behavior and susceptibility to addiction. This review focuses on advances made to date in an effort to link genetic individual variations and reward processing as a possible basis for addictive behaviors.},
affiliation = {Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, Hamburg, Germany. j.yacubian@uke.uni-hamburg.de},
number = {1},
pages = {55--71},
volume = {164},
year = {2009},
month = {Nov},
language = {eng},
keywords = {Catechol O-Methyltransferase, Dopamine Plasma Membrane Transport Proteins, Reward, Humans, Signal Transduction, Animals, Social Behavior, Behavior: Addictive, Dopamine},
date-added = {2010-01-14 19:54:35 +0100},
date-modified = {2010-07-29 19:41:38 +0200},
doi = {10.1016/j.neuroscience.2009.05.015},
pii = {S0306-4522(09)00797-0},
pmid = {19446009},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p3075},
rating = {3}
}

@article{Veresciagina:2007p5424,
author = {Kotryna Veresciagina and Kazys Vytautas Ambrozaitis and Bronius Spakauskas},
journal = {Medicina (Kaunas)},
title = {Health-related quality-of-life assessment in patients with low back pain using SF-36 questionnaire},
abstract = {OBJECTIVE: For complete assessment of benefits of the surgical intervention, it is essential to provide evidence of the impact on patients in terms of health status and health-related quality of life. In the present study, the preoperative 36-item Short Form (SF-36) Health Survey scores were determined in patients before lumbar microdiscectomy due to better preoperative screening likewise in the control group--almost healthy population taken into account any habitual ailments experienced in an appropriate age. PATIENTS AND METHODS: In the present study, we investigated a cohort of 100 patients with disc herniation causing low back pain and another hundred of the control subjects, matched by age and gender. The short form 36 general health questionnaire (SF-36) was applied. RESULTS: Estimation of the SF-36 scores showed that (1) all of the domain values were considerably lower in the preoperative patient group than in the second one (P<0.01); (2) the bodily pain scores were closely correlated to the social function scores (R=0.7, P<0.01), whereas the physical function was less related to the bodily pain (R=0.6, P<0.01). The weakest correlation was observed between bodily pain and mental health and general health (R=0.4, P<0.01). CONCLUSION: The present study showed that the generic instrument, SF-36 Health Survey, was optimized paraclinical method for patients predisposed to surgical treatment of the lumbar disc herniation disease likewise for normal population individuals, matched by age and sex, in the assessment of health-related quality of life.},
affiliation = {Department of Neurosurgery, Kaunas University of Medicine, Kaunas, Lithuania. cotryna@gmail.com},
number = {8},
pages = {607--13},
volume = {43},
year = {2007},
month = {Jan},
language = {eng},
keywords = {Pain Measurement, Adult, Low Back Pain, Quality of Life, Mental Health, Humans, Questionnaires, Tomography: X-Ray Computed, Data Interpretation: Statistical, Lumbar Vertebrae, Intervertebral Disk Displacement, Male, Cohort Studies, Aged, Health Status, Middle Aged, Female},
date-added = {2010-02-11 10:39:04 +0100},
date-modified = {2010-02-11 10:39:04 +0100},
pii = {0708-02e},
pmid = {17895635},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Veresciagina-2007-Medicina%20(Kaunas)_Health-related%20quali.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p5424},
read = {Yes},
rating = {0}
}

@article{Dong:2003p11906,
author = {F Dong and S Pilli and S Pivirotto and J Van Domelen},
journal = {SUGI 28},
title = {StARScope: A Web-based SAS{\textregistered} Prototype for Clinical Data Visualization},
abstract = {StARScope is a dynamic, clinical trial data visualization prototype. It was developed with SAS{\textregistered} version 8.2, including SAS/IntrNet, SAS Graphics and SAS ODS, and is a web-based application. The web server is on a Unix machine and the user interface is Internet Explorer (5.0 or above) running on any desktop machine. In developing the prototype, we took advantage of the SAS/IntrNet and SAS Output Delivery System to publish graphic reports with hyperlinks to relevant data. We also utilized the newly developed Pfizer corporate data standard- -Global Reporting and Data Exchange Standards (GRADES), which follows the proposed pharmaceutical industry standards defined by the Clinical Data Interchange Standards Consortium (CDISC) group. This way, the prototype can be used by any clinical trial studies that comply with the GRADES. StARScope provides interactive access to clinical trial data to non- programmer clients, including clinicians, statisticians, and medical	writers.	StARScope	heavily	utilizes	graphic presentations to help clients quickly capture salient information from the database in a pictorial fashion. Programmers can also use StARScope for data checking on the research report tables.},
year = {2003},
date-added = {2010-05-23 11:53:09 +0200},
date-modified = {2010-05-23 11:54:33 +0200},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Dong-2003-SUGI%2028_StARScope%20A%20Web-bas.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p11906},
rating = {0}
}

@inproceedings{Grim:2005,
author = {B J Grim and L M Semali},
journal = {Proceedings},
title = {Checking for Nonresponse Bias in Web-Only Surveys of Special Populations using a Mixed-Mode (Web-with-Mail) Design},
year = {2005},
date-added = {2010-01-10 11:33:21 +0100},
date-modified = {2010-01-10 11:33:25 +0100},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Grim-2005-Proceedings_Checking%20for%20Nonresp.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p2093},
rating = {0}
}

@article{Price:2008p1821,
author = {Alkes L Price and Nick Patterson and Dustin C Hancks and Simon Myers and David Reich and Vivian G Cheung and Richard S Spielman},
journal = {PLoS Genet},
title = {Effects of cis and trans genetic ancestry on gene expression in African Americans},
abstract = {Variation in gene expression is a fundamental aspect of human phenotypic variation. Several recent studies have analyzed gene expression levels in populations of different continental ancestry and reported population differences at a large number of genes. However, these differences could largely be due to non-genetic (e.g., environmental) effects. Here, we analyze gene expression levels in African American cell lines, which differ from previously analyzed cell lines in that individuals from this population inherit variable proportions of two continental ancestries. We first relate gene expression levels in individual African Americans to their genome-wide proportion of European ancestry. The results provide strong evidence of a genetic contribution to expression differences between European and African populations, validating previous findings. Second, we infer local ancestry (0, 1, or 2 European chromosomes) at each location in the genome and investigate the effects of ancestry proximal to the expressed gene (cis) versus ancestry elsewhere in the genome (trans). Both effects are highly significant, and we estimate that 12+/-3% of all heritable variation in human gene expression is due to cis variants.},
affiliation = {Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts, United States of America. aprice@hsph.harvard.edu},
number = {12},
pages = {e1000294},
volume = {4},
year = {2008},
month = {Dec},
language = {eng},
keywords = {Male, Female, European Continental Ancestry Group, African Continental Ancestry Group, Genome: Human, Humans, Genetics: Population, Evolution: Molecular, Gene Expression, Genetic Variation},
date-added = {2010-01-09 22:59:30 +0100},
date-modified = {2010-01-09 22:59:30 +0100},
doi = {10.1371/journal.pgen.1000294},
pmid = {19057673},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Price-2008-PLoS%20Genet_Effects%20of%20cis%20and%20t.pdf},
uri = {papers://58407365-8DEB-4C7D-995B-6322E39C7022/Paper/p1821},
rating = {0}
}

@article{Marsh:2003p882,
author = {A Marsh and L Smith and J Piek and B Saunders},
journal = {Educational and Psychological Measurement},
title = {The purpose in life scale: Psychometric properties for social drinkers and drinkers in alcohol treatment},
abstract = {The aim of the present research was to further investigate (a) the structure of the Purpose inLifetest(PIL)usingconfirmatoryfactoranalytictechniques,(b)thereliabilityofPIL scores,and(c)thevalidityofthePIL.Participantswere357socialdrinkers(notinalco- hol treatment) and 137 treatment drinkers (in alcohol treatment). With the exclusion of 3 items,aunidimensionalmeasurementmodelforthePILprovidedanadequatefitfor social and treatment drinkers. Model invariance analysis indicated that 6 of 17 PIL items had different pattern coefficients for the two groups of drinkers. The 17 items of the PIL demonstrated good measurement reliability for both groups of drinkers and good criterion- related validity.},
affiliation = {Curtin University of Technology, Australia},
number = {5},
pages = {859--871},
volume = {63},
year = {2003},
keywords = {psychometric properties, Purpose in Life, treatment drinkers, social drinkers, impaired control over drinking},
date-added = {2010-01-03 18:11:42 +0100},
date-modified = {2010-01-03 18:14:26 +0100},
doi = {10.1177/0013164402251040},
local-url = {file://localhost/Users/chl/Dropbox/Papers/Marsh-2003-Educational%20and%20Psychological%20Measurement_The%20purpose%20in%20life.pdf

license: MIT

license_type: permissive

branch_name: refs/heads/master

extension: bib