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Cognitive Development2
Infants2
Motor Development2
Object Permanence2
Eye Fixations1
Novelty (Stimulus Dimension)1
Object Manipulation1
Perceptual Motor Coordination1
Research Methodology1
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Child Development2
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Rader, Nancy1
Willatts, Peter1
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Performance on a Stage IV Object-Permanence Task with Standard and Nonstandard Covers.
Peer reviewed Peer reviewed
And Others; Rader, Nancy – Child Development, 1979
Examined the role of perceptual-motor development in a typical Stage IV task. The performance of ten infants was compared on a Stage IV object permanence task when a cloth cover was used and when a small card cover was used. (JMB)
Descriptors: Cognitive Development, Infants, Motor Development, Object Permanence
Adjustment of Reaching to Change in Object Position by Young Infants.
Peer reviewed Peer reviewed
Willatts, Peter – Child Development, 1979
Descriptors: Cognitive Development, Eye Fixations, Infants, Motor Development