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Wahlsten, 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
Meyer, William J.; Egeland, Byron – 1968
This evaluation of cognitive change in Head Start children focused on changes in performance as opposed to changes in competence; specifically, that Binet test performance improves as a function of experience with Binet examiners. The study involved 93 children assigned to four groups who were tested for IQ gains during a 6-week Head Start program…
Descriptors: Blacks, Cognitive Ability, Cognitive Development, Disadvantaged
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Cole, Kevin N.; Coggins, Truman E.; Vanderstoep, Cheryl – Language, Speech, and Hearing Services in Schools, 1999
This study examined effects of intervention on discourse skills on 13 children (ages 3-7) with language delays and cognitive performance above language performance, and 14 children with delays in both language and cognitive performance. The children with lower IQ performance benefited more from the intervention. Service implications are discussed.…
Descriptors: Cognitive Ability, Communication Skills, Developmental Delays, Instructional Effectiveness