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Youssef, Zakhour I.; Guardo, Carol J. – Journal of Genetic Psychology, 1972
These results support Piaget's position that preoperational children respond to the perceptual lack of equality but not to the lack of conceptual equivalence in class-inclusion problems. (Authors)
Descriptors: Abstract Reasoning, Cognitive Processes, Concept Formation, Cues
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Saltz, Eli; And Others – Child Development, 1972
Two major trends in the development of natural language concepts were found in the present study: (1) there was a clear indication that such concepts exist in a relatively fragmented form in young children; (2) young children showed a strong dependence on perceptual attributes in their definitions of concepts. (Author/CB)
Descriptors: Age Differences, Cognitive Processes, Concept Formation, Developmental Psychology
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Odom, Richard; Buzman, Richard D. – Developmental Psychology, 1972
It was shown that hierarchies change with development and that relative salience of a dimension is negatively associated with both reaction time of choice and number of errors on the identity task. (Authors)
Descriptors: Cognitive Processes, Data Analysis, Elementary School Students, Perceptual Development