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Cognitive Development	2
Discrimination Learning	2
Conceptual Tempo	1
Elementary School Students	1
Hypothesis Testing	1
Intelligence Differences	1
Intelligence Quotient	1
Longitudinal Studies	1
Mental Retardation	1
Preschool Children	1
Preschool Education	1
Problem Solving	1
Research	1
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Developmental Psychology	1
Journal of Experimental Child…	1

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Weisz, John R.	2
Achenbach, Thomas M.	1

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Impulsivity-Reflectivity and Cognitive Development in Preschoolers: A Longitudinal Analysis of Developmental and Trait Variance

Peer reviewed

Achenbach, Thomas M.; Weisz, John R. – Developmental Psychology, 1975

Descriptors: Cognitive Development, Conceptual Tempo, Discrimination Learning, Hypothesis Testing

A Follow-Up Developmental Study of Hypothesis Behavior Among Mentally Retarded and Nonretarded Children

Peer reviewed

Weisz, John R. – Journal of Experimental Child Psychology, 1977

To clarify the roles of IQ and mental age (MA) in hypotheses behavior, MA-matched subjects at three levels of IQ and three levels of MA received blank trial discrimination learning problems using procedures designed to discourage position-oriented responding. (Author/BD)

Descriptors: Cognitive Development, Discrimination Learning, Elementary School Students, Intelligence Differences