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Peer reviewed Peer reviewed
Pallrand, George J. – Journal of Research in Science Teaching, 1979
Examines the transition from concrete to formal thought in Piagetian theory. The questions investigated relate to the abruptness of the transition period, the simultaneity of changes across schemes, and the influence of one scheme of development on another. (SA)
Descriptors: Cognitive Development, Cognitive Measurement, Cognitive Processes, Developmental Stages
Peer reviewed Peer reviewed
Kishta, Mohammed A. – Journal of Research in Science Teaching, 1979
Discussed are the influences of a student's gender, grade level, country of origin, and urban/rural environment in performance of proportional and combinatorial Piagetian tasks. (Author/SA)
Descriptors: Cognitive Development, Cross Cultural Studies, Cultural Influences, Developmental Stages