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| Adoption | 1 |
| Cognitive Ability | 1 |
| Cognitive Development | 1 |
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| Developmental Psychology | 1 |
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| DeFries, J. C. | 1 |
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Peer reviewedDeFries, J. C.; And Others – Developmental Psychology, 1987
A path model of genetic and family environmental transmission was fitted to published twin correlations and to general cognitive ability data from adoptive and nonadoptive families in which children were tested yearly through the fourth year. Longitudinal genetic correlations from infancy to adulthood were modeled explicitly, as were effects of…
Descriptors: Adoption, Cognitive Ability, Cognitive Development, Comparative Analysis
