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Robertson, Anne De Shazo; Youniss, James – Child Develop, 1969
Research supported in part by grants 1484-S and 198-T from U.S. Rehabilitation Services Administration.
Descriptors: Cognitive Development, Deafness, Handicapped Children, Hearing (Physiology)
D'Mello, Sydney; Willemsen, Eleanor – Child Develop, 1969
Descriptors: Abstract Reasoning, Elementary School Students, Mathematical Concepts, Number Concepts