
ERIC Number: EJ078406
Record Type: Journal
Publication Date: 1973
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Conservation of Part and Whole in the Acquisition of Class Inclusion
Sheppard, John L.
Child Development, 44, 2, 380-3, June 73
Support for the operation of internal factors in cognitive development was provided by an obtained increase from first to second posttest scores. Two conservations were considered to be involved--conservation of the whole and of the part. (Author)
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