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Peer reviewed Peer reviewed
Greenberg, David J.; O'Donnell, William J. – Child Development, 1972
Study attempted to determine the viability of optimal level theory as it pertains to infant perceptual and cognitive development. (Authors)
Descriptors: Age Differences, Cognitive Development, Data Analysis, Infants
Peer reviewed Peer reviewed
Turnure, Cynthia – Developmental Psychology, 1971
Descriptors: Affective Behavior, Age Differences, Auditory Stimuli, Cognitive Development