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The concurrent validity and test-retest reliability of a visuospatial working memory task
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A genetic two-factor model of the covariation among a subset of Multidimensional Aptitude Battery and Wechsler Adult Intelligence Scale - Revised subtests
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Abstract:
The phenotypic and genetic factor structure of performance on five Multidimensional Aptitude Battery (MAB) subtests and one Wechsler Adult Intelligence Scale-Revised (WAIS-R) subtest was explored in 390 adolescent twin pairs (184 monozygotic [MZ]; 206 dizygotic (DZ)). The temporal stability of these measures was derived from a subsample of 49 twin pairs, with test-retest correlations ranging from .67 to .85. A phenotypic factor model, in which performance and verbal factors were correlated, provided a good fit to the data. Genetic modeling was based on the phenotypic factor structure, but also took into account the additive genetic (A), common environmental (C), and unique environmental (E) parameters derived from a fully saturated ACE model. The best fitting model was characterized by a genetic correlated two-factor structure with specific effects, a general common environmental factor, and overlapping unique environmental effects. Results are compared to multivariate genetic models reported in children and adults, with the most notable difference being the growing importance of common genes influencing diverse abilities in adolescence. (C) 2003 Elsevier Inc. All rights reserved.
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Keyword:
380102 Learning; 780108 Behavioural and cognitive sciences; C1; Cognition and Language; Cognitive Ability; Cognitive-abilities; Colorado-adoption-project; Developmental-change; Mab; Memory; Multidisciplinary; Multivariate Genetic Analysis; Psychology; Standardization Sample; Twin Study; Wais-r
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URL: https://espace.library.uq.edu.au/view/UQ:67323
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Lateralization of speech production using verbal/manual dual tasks: meta-analysis of sex differences and practice effects
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Lateralisation of speech production using verbal/manual dual tsks: Sex differences and practice effects, a meta-analytic review
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Working memory in children with Tourette syndrome (TS): Dual task performance and sentence comprehension
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