A genetic two-factor model of the covariation among a subset of Multidimensional Aptitude Battery and Wechsler Adult Intelligence Scale - Revised subtests

Luciano, M., Wright, M. J., Geffen, G. M., Geffen, L. B., Smith, G. A., Evans, D. M. and Martin, N. G. (2003) A genetic two-factor model of the covariation among a subset of Multidimensional Aptitude Battery and Wechsler Adult Intelligence Scale - Revised subtests. Intelligence, 31 6: 589-605. doi:10.1016/S0160-2896(03)00057-6


Author Luciano, M.
Wright, M. J.
Geffen, G. M.
Geffen, L. B.
Smith, G. A.
Evans, D. M.
Martin, N. G.
Title A genetic two-factor model of the covariation among a subset of Multidimensional Aptitude Battery and Wechsler Adult Intelligence Scale - Revised subtests
Journal name Intelligence   Check publisher's open access policy
ISSN 0160-2896
Publication date 2003
Sub-type Article (original research)
DOI 10.1016/S0160-2896(03)00057-6
Volume 31
Issue 6
Start page 589
End page 605
Total pages 17
Editor D. Detterman
Place of publication New York, USA
Publisher Elsevier
Collection year 2003
Language eng
Subject C1
380102 Learning, Memory, Cognition and Language
780108 Behavioural and cognitive sciences
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.
Keyword Psychology, Multidisciplinary
Mab
Wais-r
Multivariate Genetic Analysis
Twin Study
Cognitive Ability
Colorado-adoption-project
Cognitive-abilities
Standardization Sample
Developmental-change
Q-Index Code C1

 
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Created: Wed, 15 Aug 2007, 02:38:02 EST