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Chapman, Michael – International Journal of Behavioral Development, 1987
Explores development of cognitive representation in 20 infants 12 to 24 months of age with regard to (l) their understanding of agency in symbolic play (agent use), (2) recognition of their own mirror image, and (3) object permanence. Results were generally consistent with developmental sequences predicted by Fischer's Skill Theory for agent use…
Descriptors: Cognitive Processes, Developmental Stages, Infants, Object Permanence