Coon, H., Fulker, D. W., DeFries, J. C., & Plomin, R. (1990). Home Environment and Cognitive Ability of 7-year-old Children. Developmental Psychology, 26(3), 459-468.
Reviewed by Joyce Jordan-DeCarbo, Ph.D.
Do genetics or environment most affect the cognitive ability of young children? An interesting research study regarding the home environment in early childhood addressed the issue of whether parental genotype or the home environment contributes most to cognitive development from birth to age seven. Although not a recent study, the researchers used a highly sophisticated model of path analysis of data obtained over a 7-year period of time.
The study by Coon, Fulker, DeFries, and Plomin (1990) is one investigation of a series of longitudinal studies utilizing data generated from the Colorado Adoption Project, which was initiated in 1975 to investigate genetic and environmental aspects of behavioral development. Adopted children were…