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| Research article summary (published 27 Feb 2003): |
Genetic influences on childhood competencies: a twin study.
Full Abstract
OBJECTIVE:
To estimate genetic, environmental, and rater contrast influences on parental reports of Activities, Social, School, and Total Competence scales of the Child Behavior Checklist (CBCL).
METHOD:
Parents of 492 twin pairs aged 8-12 years completed CBCLs. Genetic, shared and unique environmental, and rater bias effects were estimated for the Activities, Social, School, and Total Competence scales. Data on boys and girls were analyzed separately.
RESULTS:
Moderate genetic influences were found only for the School scale (60%-76%), while shared environment accounted for most of the variance in Activities, Social, and Total Competence scales. Gender differences are reported. Similar to a prior twin study of CBCL problem syndromes, there was no evidence of rater bias.
CONCLUSIONS:
Estimates of genetic influence on these child competence domains were high for School Competence, while social competence and activity competence evidenced higher levels of shared environmental influences. Organization and wording of CBCL items may avoid rater biases in reporting. These findings have implications for interventions to improve school, social, and activities competence.
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Author information
Author/s: Hudziak, James J (JJ); Copeland, William (W); Rudiger, Lawrence P (LP); Achenbach, Thomas M (TM); Heath, Andrew C (AC); Todd, Richard D (RD);
Affiliation: University of Vermont College of Medicine, Burlington, USA. jhudziak@zoo.uvm.edu
Grants: MH 40305 (Agency:United States NIMH) ; MH 52813 (Agency:United States NIMH)
Journal and publication information
Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S.; Twin Study
Journal: Journal of the American Academy of Child and Adolescent Psychiatry (J Am Acad Child Adolesc Psychiatry), published in United States. (Language: eng)
Reference: 2003-Mar; vol 42 (issue 3) : pp 357-63
Dates: Created 2003/02/21; Completed 2003/04/23; Revised 2007/11/14;
PMID: 12595790, status: MEDLINE (last retrieval date: 11/6/2008)
Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.
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