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Pettersson, Erik; Anckarsäter, Henrik; Gillberg, Christopher; Lichtenstein, Paul – Journal of Child Psychology and Psychiatry, 2013
Background: Although neurodevelopmental disorders are demarcated as discrete entities in the Diagnostic Statistical Manual of mental disorders, empirical evidence indicates that there is a high degree of overlap among them. The first aim of this investigation was to explore if a single general factor could account for the large degree of observed…
Descriptors: Foreign Countries, Twins, Interviews, Symptoms (Individual Disorders)
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Weston, Rebecca; Gore, Paul A., Jr. – Counseling Psychologist, 2006
To complement recent articles in this journal on structural equation modeling (SEM) practice and principles by Martens and by Quintana and Maxwell, respectively, the authors offer a consumer's guide to SEM. Using an example derived from theory and research on vocational psychology, the authors outline six steps in SEM: model specification,…
Descriptors: Structural Equation Models, Goodness of Fit, Guides, Statistical Analysis