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| Cognitive Development | 2 |
| Cognitive Processes | 2 |
| Problem Solving | 2 |
| Sex Differences | 2 |
| Affective Behavior | 1 |
| Age Differences | 1 |
| Behavior Change | 1 |
| Child Development | 1 |
| College Students | 1 |
| Concept Formation | 1 |
| Creativity | 1 |
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| Perceptual and Motor Skills | 2 |
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Peer reviewedRohles, 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
Peer reviewedRenner, Vivian; Renner, John C. – Perceptual and Motor Skills, 1971
Descriptors: Affective Behavior, Behavior Change, Cognitive Development, Cognitive Processes


