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Peer reviewedWahlsten, Douglas – Alberta Journal of Educational Research, 1995
Criticizes claims in "The Bell Curve" that a high value for heritability of intelligence constrains the extent to which environmental changes can increase intelligence. Cites adoption studies and the increasing intelligence of successive cohorts of U.S. children as evidence that intelligence can increase substantially without heroic…
Descriptors: Adopted Children, Cognitive Ability, Family Environment, Heredity
Nuttall, Ronald L.; Nuttall, Ena Vazquez – 1978
This study focuses on the effects of family size and spacing on intellectual, social, and personality development of children. The sample consisted of 533 suburban, middle class, large family (five or more) and small two child family children. The children, 233 boys and 300 girls, were teenagers attending either junior or senior high school.…
Descriptors: Academic Aspiration, Age Differences, Behavioral Science Research, Birth Order
