| Literature DB >> 15355167 |
Stephen A Petrill1, Paul A Lipton, John K Hewitt, Robert Plomin, Stacey S Cherny, Robin Corley, John C DeFries.
Abstract
The genetic and environmental contributions to the development of general cognitive ability throughout the first 16 years of life were examined using sibling data from the Colorado Adoption Project. Correlations were analyzed along with structural equation models to characterize the genetic and environmental influences on longitudinal stability and instability. Intraclass correlations reflected both considerable genetic influence at each age and modest shared environmental influence within and across ages. Modeling results suggested that genetic factors mediated phenotypic stability throughout this entire period, whereas most age-to-age instability appeared to be due to nonshared environmental influences. Copyright 2004 American Psychological AssociationMesh:
Year: 2004 PMID: 15355167 PMCID: PMC3710702 DOI: 10.1037/0012-1649.40.5.805
Source DB: PubMed Journal: Dev Psychol ISSN: 0012-1649