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| Gopnik, Alison | 1 |
| Meltzoff, Andrew | 1 |
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Peer reviewedGopnik, Alison; Meltzoff, Andrew – Child Development, 1987
Changes in children's categorization behavior between 15 and 21 months of age and the relation of these changes to developments in language, object permanence, and means-end understanding are reported. (PCB)
Descriptors: Behavior Change, Classification, Cognitive Development, Infant Behavior
