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Reynolds, Cecil R.; Jensen, Arthur R. – Journal of Educational Psychology, 1983
Groups of 270 Black and 270 White children drawn from the national stratified random sample used in the standardization of the Wechsler Intelligence Scale for Children-Revised (WISC-R) were matched on age, sex, and WISC-R Full-Scale Intelligence Quotient to facilitate investigation of the patterns of specific cognitive abilities. (Author)
Descriptors: Age Differences, Behavior Patterns, Black Students, Cognitive Ability

Svanum, Soren; Bringle, Robert G. – Journal of Educational Psychology, 1980
The confluence model of cognitive development was tested on 7,060 children. Family size, sibling order within family sizes, and hypothesized age-dependent effects were tested. Findings indicated an inverse relationship between family size and the cognitive measures; age-dependent effects and other confluence variables were found to be…
Descriptors: Academic Achievement, Age Differences, Birth Order, Cognitive Development