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Peer reviewedCardon, Lon R.; And Others – Intelligence, 1990
Genetic and environmental etiologies of individual differences in tests of intelligence and school achievement were investigated in a study from the Colorado Adoption Project. A multivariate conditional path model was fitted to general cognitive ability and reading performance data from 119 adoptive and 120 nonadoptive families. (SLD)
Descriptors: Academic Achievement, Achievement Tests, Adopted Children, Cognitive Ability
