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Melnick, Gerald I. – Child Development, 1973
An extension of discrimination-learning theory based on the inhibition of stimulus intensity was proposed and supported as a mechanism of cognitive development. Among 48 normal and 37 educable mentally retarded children the predominant category of transistional children conserved at a low level of stimulus intensity but failed to conserve at a…
Descriptors: Age Differences, Cognitive Development, Conservation (Concept), Cues