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Vaidya, N. – 1980
Research is described concerning a factor analytic view of adolescent thought in Piagetian context. Included are a description of Piagetian tasks used for determining stage of mental development, studies concerning Piagetian task factor analysis, and the current factorial structure of adolescent thought. (DS)
Descriptors: Adolescent Development, Cognitive Development, Cognitive Measurement, Cognitive Processes
Klausmeier, Herbert J.; And Others – 1976
Piaget's model of children's conceptual learning and development was compared with Klausmeier's Conceptual Learning and Development (CLD) model in a longitudinal study. The CLD model suggests four successive levels of concept learning: (1) concrete--recognizing an object which has been encountered previously; (2) identity--recognizing a known…
Descriptors: Abstract Reasoning, Classification, Cognitive Development, Cognitive Measurement