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Haney, Joanne D. Hager – 1971
The purposes of this study include: (1) determining whether socioeconomic status (SES) or verbal ability (VA) exerts greater influence on childrens' performance of Piagetian tasks; (2) devising an instrument for measuring childrens' level of cognitive development which does not depend on verbal ability alone; and (3) adapting materials for teacher…
Descriptors: Child Development, Cognitive Development, Cognitive Measurement, Conservation (Concept)