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| Age Differences | 1 |
| Cognitive Development | 1 |
| Cognitive Processes | 1 |
| Concept Formation | 1 |
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| Infants | 1 |
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| Child Development | 1 |
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| Baillargeon, Renee | 1 |
| DeVos, Julie | 1 |
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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
