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Peer reviewedKamin, Leon J. – Psychological Bulletin, 1980
This article reviews sex studies of children of cousin marriages and three studies of children of incestuous matings. It is argued that these studies, taken as a whole, provide no substantial evidence for an inbreeding depression effect within the polygenic system commonly asserted to determine IQ. (Author/DB)
Descriptors: Children, Genetics, Heredity, Intelligence
