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Genetic and environmental components of adolescent adjustment and parental behavior: a multivariate analysis
John C Loehlin1, Jenae M Neiderhiser, David Reiss
1University of Texas at Austin, Department of Psychology A8000, 1 University Station, Austin, Texas 78712, USA. loehlin@psy.utexas.edu
Abstract:
Adolescent adjustment measures may be related to each other and to the social environment in various ways. Are these relationships similar in genetic and environmental sources of covariation, or different? A multivariate behavior-genetic analysis was made of 6 adjustment and 3 treatment composites from the study Nonshared Environment in Adolescent Development, using 674 same-sex adolescent sibling pairs aged 9-11. Cholesky decompositions of the total covariance matrix yielded additive and nonadditive genetic, and shared and nonshared environmental matrices. Factor analyses led to 3 factors for all but shared environment. The first 2 factors resembled Neuroticism and Extraversion factors typically found for personality; the third factor, parental monitoring and control, appeared to have different associations in different matrices.
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