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Peer reviewedWatson, John S.; And Others – Child Development, 1979
Seventy-four lower- and middle-class children aged 2 1/2, 3 1/2, and 4 1/2 years, who were successful at unidimensional sorting of two objects by either color or form, were given feedback for correct bidimensional sorting of three objects, two of which had been used in unidimensional testing. Results indicate that Piagetian centration is a task-…
Descriptors: Age Differences, Classification, Feedback, Lower Class
Melton, Richard S.; And Others – 1968
The papers in this document represent preliminary results of a study which is part of a 3-year project being conducted by the Educational Testing Service in cooperation with the New York City Board of Education, with support from the Carnegie Corporation of New York. This document is divided into seven sections: (1) Introduction, (2)…
Descriptors: Basic Skills, Child Language, Classification, Cognitive Development
