Reports

Cognitive Capacity of Very Young Children

Science  06 Oct 1967:
Vol. 158, Issue 3797, pp. 141-142
DOI: 10.1126/science.158.3797.141

Abstract

Children between 2 years, 6 months old and 3 years, 2 months old correctly discriminate the relative number of objects in two rows; between 3 years, 2 months and 4 years, 6 months they indicate a longer row with fewer objects to have "more"; after 4 years, 6 months they again discriminate correctly. The discriminative ability of the younger children shows that the logical capacity for cognitive operations exists earlier than previously acknowledged.

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