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Alp, I. Ercan – International Journal of Behavioral Development, 1994
Investigated development of working memory in the transitional period from infancy to preschool years. The age-related increase in scores on the Imitation Sorting Task (IST) appeared to be about one unit every six months. Results suggest that the IST has a good construct validity. (AA)
Descriptors: Age Differences, Cognitive Development, Cognitive Processes, Developmental Stages