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| Developmental Psychology | 2 |
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| Journal Articles | 1 |
| Reports - Research | 1 |
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Peer reviewedBradley, Robert H.; And Others – Developmental Psychology, 1979
Descriptors: Cognitive Development, Family Environment, Infant Behavior, Infants
Peer reviewedCicirelli, Victor G. – Developmental Psychology, 1973
One hundred sixty sibling pairs from two child families were sampled for sibling interaction behaviors as they relate to measures of categorization style. The study provides additional evidence of the importance of a child's siblings to his cognitive development. (Editor/RK)
Descriptors: Age Differences, Classification, Cognitive Development, Concept Teaching
