ERIC Number: EJ667259
Record Type: CIJE
Publication Date: 2003
Development Genetic Analysis of General Cognitive Ability from 1 to 12 Years in a Sample of Adoptees, Biological Siblings, and Twins.
Bishop, E. G.; Cherny, Stacey S.; Corley, Robin; Plomin, Robert; DeFries, John C.; Hewitt, John K.
Intelligence, v31 n1 p31-49 2003
Studied continuity and change in general cognitive ability from infancy to adolescence in adoptees (107 children), biological siblings (87 pairs), and twins (224 monozygotic and 189 dyzygotic pairs). Findings generally support previous findings about genetic and environmental factors, with the exception that in the transition to adolescence, genetic factors no longer contribute to change. (SLD)
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A
Note: Research supported by grant MH43899 from the National Institute of Mental Health, grant HD10333 from the National Institute of Child Health and Development, and the John D. and Catherine T. MacArthur Foundation.