Longitudinal stability of cognitive ability from infancy to early childhood: genetic and environmental etiologies

A path model of genetic and shared family environmental transmission was fitted to general cognitive ability data from 1-, 2-, 3-, and 4-year-old adopted and nonadopted children and their parents in order to assess the etiology of longitudinal stability from infancy to early childhood. Stability acr...

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Bibliographic Details
Published in:Child development 1986-10, Vol.57 (5), p.1142-1150
Main Authors: LaBuda, M.C, DeFries, J.C, Plomin, R, Fulker, D.W
Format: Article
Language:English
Subjects:
Adopted children
Adoption
Adoptive parents
Behavioral genetics
Biological and medical sciences
child development
Child, Preschool
Childhood
cognitive development
Correlations
Covariance matrices
Differential and comparative psychology
Environment
etiology
family relations
Fundamental and applied biological sciences. Psychology
genetic factors
Human genetics
Humans
Infancy
Infant
infant development
Intelligence
Longitudinal Studies
Mathematics
Models, Genetic
Parents
Parents - psychology
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
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Summary:A path model of genetic and shared family environmental transmission was fitted to general cognitive ability data from 1-, 2-, 3-, and 4-year-old adopted and nonadopted children and their parents in order to assess the etiology of longitudinal stability from infancy to early childhood. Stability across years is moderate and is due mainly to influences not predicted by parental IQ. Results of the present study, in conjunction with those of previous twin studies, suggest substantial genetic stability from infancy and early childhood to adulthood.
ISSN:0009-3920
1467-8624
DOI:10.2307/1130438