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Taylor, Lloyd A. – 1967
Mentally retarded children were studied for their conceptual development and movement from the ability to perceive persons as separate entities but not in significant interaction (aprasia) to group activity. A quasi-projection technique was used to test six groups of 20 boys each, including institutionalized and family-based normals (aged 6 and…
Descriptors: Abstract Reasoning, Child Development, Cognitive Processes, Concept Formation