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| Concept Formation | 3 |
| Infants | 3 |
| Object Permanence | 3 |
| Cognitive Development | 2 |
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| Child Development | 1 |
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| Child Development | 3 |
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| Baillargeon, Renee | 1 |
| DeVos, Julie | 1 |
| Gopnik, Alison | 1 |
| Levine, Michael P. | 1 |
| Meltzoff, Andrew N. | 1 |
| Smolak, Linda | 1 |
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| Journal Articles | 3 |
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Peer reviewedGopnik, Alison; Meltzoff, Andrew N. – Child Development, 1986
Compares two types of semantic development (the acquisition of disappearance words and success-failure words) to performance on two types of cognitive tasks (object-permanence and means-ends tasks) among infants. (HOD)
Descriptors: Child Development, Cognitive Development, Concept Formation, Developmental Stages
Peer reviewedSmolak, Linda; Levine, Michael P. – Child Development, 1984
Studies 40 children ages 1 to 3 with respect to stage 6 object permanence, representational language, and symbolic play. Examines methodological problems in investigations of Piaget's model of cognitive-linguistic relationships related to the definition of these variables and associated with the use of correlations for data analysis. (Author/CB)
Descriptors: Concept Formation, Developmental Stages, Infants, Language Acquisition
Peer reviewedBaillargeon, Renee; DeVos, Julie – Child Development, 1991
Observed the reactions of 3.5-month-old infants looking at a carrot that should have but did not appear in a window after passing behind a screen. The results of this and several similar experiments indicated that 3.5-month-old infants are able to represent and reason about hidden objects. (BC)
Descriptors: Age Differences, Cognitive Development, Cognitive Processes, Concept Formation
