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Jordan, Valerie Barnes; Jordan, Lawrence A. – 1975
This paper reviews studies in which scores on Piagetian tests of logical thought were correlated with IQ, mental age (MA) and chronological age (CA), and examines the possible effects of the size of the age range and mean age of subjects on these correlations. The data included 44 groups of subjects obtained from 36 studies in which Piagetian and…
Descriptors: Age, Age Differences, Cognitive Development, Cognitive Measurement