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Peer reviewedHumphreys, Lloyd G.; And Others – Developmental Psychology, 1985
Since early research had shown that a total score on 27 Piagetian tasks was very highly correlated with a Wechsler and achievement composite, a study investigated the possibility of shortening the Piagetian test by means of classical analysis methodology. (HOD)
Descriptors: Academic Achievement, Adolescents, Children, Cognitive Development
Peer reviewedWeisz, John R.; Yeates, Keith Owen – Psychological Bulletin, 1981
Surveys 30 studies involving 104 separate tests of the "similar structure hypothesis" which holds that, when nonorganically impaired retarded and nonretarded persons are similar in developmental level, they are also similar in the processes and concepts by which they reason. (Researchers distinguished between studies that excluded…
Descriptors: Cognitive Development, Comparative Analysis, Conservation (Concept), Hypothesis Testing
