• Publications
  • Influence
Investigating population heterogeneity with factor mixture models.
Sources of population heterogeneity may or may not be observed. If the sources of heterogeneity are observed (e.g., gender), the sample can be split into groups and the data analyzed with methods forExpand
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  • Open Access
Performance of Factor Mixture Models as a Function of Model Size, Covariate Effects, and Class-Specific Parameters.
Abstract Factor mixture models are designed for the analysis of multivariate data obtained from a population consisting of distinct latent classes. A common factor model is assumed to hold withinExpand
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  • Open Access
Applying Multigroup Confirmatory Factor Models for Continuous Outcomes to Likert Scale Data Complicates Meaningful Group Comparisons
Treating Likert rating scale data as continuous outcomes in confirmatory factor analysis violates the assumption of multivariate normality. Given certain requirements pertaining to the number ofExpand
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  • Open Access
Estimating the Genetic Variance of Major Depressive Disorder Due to All Single Nucleotide Polymorphisms
Genome-wide association studies of psychiatric disorders have been criticized for their lack of explaining a considerable proportion of the heritability established in twin and family studies.Expand
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Distinguishing Between Latent Classes and Continuous Factors with Categorical Outcomes: Class Invariance of Parameters of Factor Mixture Models
  • G. Lubke, M. Neale
  • Medicine, Mathematics
  • Multivariate behavioral research
  • 19 December 2008
Factor mixture models are latent variable models with categorical and continuous latent variables that can be used as a model-based approach to clustering. A previous article covered the results of aExpand
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  • Open Access
Relationship of family environment and parental psychiatric diagnosis to impairment in ADHD.
OBJECTIVE Family environmental factors as well as parental attention-deficit/hyperactivity disorder (ADHD) status have shown associations with variability in ADHD. The purpose of the present studyExpand
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Subtypes versus severity differences in attention-deficit/hyperactivity disorder in the Northern Finnish Birth Cohort.
OBJECTIVE To investigate whether behaviors of inattention, hyperactivity, and impulsivity among adolescents in Northern Finland reflect qualitatively distinct subtypes of ADHD, variants along aExpand
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  • Open Access
Genome-wide association study of lifetime cannabis use based on a large meta-analytic sample of 32 330 subjects from the International Cannabis Consortium
Cannabis is the most widely produced and consumed illicit psychoactive substance worldwide. Occasional cannabis use can progress to frequent use, abuse and dependence with all known adverse physical,Expand
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  • Open Access
Temperament and character profiles and the dopamine D4 receptor gene in ADHD.
OBJECTIVE This study was designed to investigate the link among attention deficit hyperactivity disorder (ADHD) in adults, novelty-seeking temperament, and the 48-base pair (bp) dopamine D4 receptorExpand
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  • Open Access
Latent Class Detection and Class Assignment: A Comparison of the MAXEIG Taxometric Procedure and Factor Mixture Modeling Approaches
Taxometric procedures such as MAXEIG and factor mixture modeling (FMM) are used in latent class clustering, but they have very different sets of strengths and weaknesses. Taxometric procedures,Expand
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