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| Developmental Psychology | 3 |
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Peer reviewedBrainerd, Charles J. – Developmental Psychology, 1973
On the basis of these findings, both the measurement techniques of previous studies and Piaget's analysis of seriation are challenged. (Author)
Descriptors: Age, Cognitive Development, Concept Formation, Conservation (Concept)
Peer reviewedMacKay, C. K.; And Others – Developmental Psychology, 1972
One finding is that the children in this study did not reach a level in the development of these concepts expected by Piaget of 9-year-olds. (Authors/CB)
Descriptors: Concept Formation, Conservation (Concept), Developmental Tasks, Difficulty Level
Peer reviewedCorter, Carl M.; And Others – Developmental Psychology, 1972
The present study investigated some properties of the environment that control an infant's response to his mother's departure and, in particular, the readiness with which he follows her. (Authors)
Descriptors: Behavioral Science Research, Data Analysis, Family Environment, Infant Behavior
