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| Child Development | 1 |
| Cognitive Development | 1 |
| Cognitive Processes | 1 |
| Conservation (Concept) | 1 |
| Elementary School Students | 1 |
| Intellectual Development | 1 |
| Maturation | 1 |
| Performance Factors | 1 |
| Responses | 1 |
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| Psychological Reports | 1 |
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| Iran | 1 |
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Peer reviewedBat-Haee, Mohammad Ali; Hosseini, A. A. – Psychological Reports, 1971
Descriptors: Child Development, Cognitive Development, Cognitive Processes, Conservation (Concept)
