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Kesler, Mary S.; And Others – Human Development, 1976
Groups of middle-aged and elderly men and women were compared on three problem solving tasks, including written problems, the 20-questions procedure, and problems administered on a Heuristic Evaluation Problem Programmer. (MS)
Descriptors: Age Differences, Educational Background, Intelligence Differences, Middle Aged Adults

Reyes-Lagunes, Isabel; And Others – Human Development, 1979
Reports on the findings of a comparative study of mental abilities of Mexican and American children. Discusses age, sex, social class, and urban-rural differences, as well as cultural differences. (SS)
Descriptors: Age Differences, Children, Cognitive Development, Cross Cultural Studies