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Brown, Lynn – Child Develop, 1969
Research supported by research grant MH-03008 from NIMH, U.S. Public Health Service.
Descriptors: Age Differences, Child Development, Discrimination Learning, Problem Solving
Kendler, Tracy S.; Kendler, Howard H. – Child Develop, 1970
Studied developmental changes in optional shift discriminations using kindergartners, second graders, sixth graders, and college students. (DR)
Descriptors: Behavior, Child Development, Developmental Tasks, Discrimination Learning