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| Racial Differences | 2 |
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| Ability | 1 |
| Adopted Children | 1 |
| Adoptive Parents | 1 |
| Age Differences | 1 |
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| Intelligence | 3 |
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Peer reviewedRushton, J. Philippe; And Others – Intelligence, 1991
Calculation of cranial capacities for the means from 4 Mongoloid and 20 Caucasoid samples (raw data from 57,378 individuals in 1978) found larger brain size for Mongoloids, a finding discussed in evolutionary terms. The conclusion is disputed by L. Willerman but supported by J. P. Rushton. (SLD)
Descriptors: Anatomy, Anthropology, Evolution, Measurement Techniques
Peer reviewedLevin, Michael; And Others – Intelligence, 1994
Michael Levin argues that data from the study are consistent with a black/white IQ difference that is significantly genetic. Richard Lynn maintains that adoption by middle-class, white families has no effect on intelligence. Waldman, Weinberg, and Scarr respond to these criticisms and support the original conclusions. (SLD)
Descriptors: Adopted Children, Adoptive Parents, Blacks, Genetics
Peer reviewedSpitz, Herman H.; And Others – Intelligence, 1993
H.H. Spitz argues that interesting results from the preschool intervention of the Abecedarian Project continue to be disregarded. C.T. Ramey reiterates his earlier objections to Spitz's conclusions, and H.H. Spitz rejoins with specific objections to Ramey. (SLD)
Descriptors: Ability, Age Differences, Control Groups, Criticism
