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| Cognitive Development | 1 |
| Cognitive Processes | 1 |
| Developmental Stages | 1 |
| Infant Behavior | 1 |
| Infants | 1 |
| Longitudinal Studies | 1 |
| Mediation Theory | 1 |
| Object Permanence | 1 |
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| Developmental Psychology | 1 |
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Peer reviewedCampos, Joseph J.; Ramsay, Douglas S. – Developmental Psychology, 1978
Attempts to determine whether infants' performance in two search tasks is related to their entry into Stage 6 of object permanence development (thereby testing Piaget's claim that only Stage 6 infants possess the capacity for representation). (BD)
Descriptors: Cognitive Development, Cognitive Processes, Developmental Stages, Infant Behavior
