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Cohen, Herbert G. – 1979
Six Piagetian-type tasks, designed to examine associated topological groupings, were examined to determine if a hierarchical relationship existed among them. The groupings examined were: the partitioning of sets and addition of subsets, reciprocity of proximities, one-to-one multiplication of elements, order of placement, symmetrical interval…
Descriptors: Cognitive Ability, Cognitive Development, Cognitive Tests, Developmental Stages
