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Perceptual and Motor Skills | 2 |
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Rohles, Frederick H., Jr. – Perceptual and Motor Skills, 1971
Attempts to determine the age at which the concept of middleness," or intermediately positioned object, emerges and is functional. (MB)
Descriptors: Age Differences, Child Development, Cognitive Development, Cognitive Processes

Renner, Vivian; Renner, John C. – Perceptual and Motor Skills, 1971
Descriptors: Affective Behavior, Behavior Change, Cognitive Development, Cognitive Processes