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Bonfield, John R.	1
Chletsos, Peter N.	1

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Cognitive Assessment of Proportional Reasoning Strategies.

Peer reviewed

Chletsos, Peter N.; And Others – Journal of Research and Development in Education, 1989

This article presents evidence of the reliability and validity of a new paper-and-pencil test of proportional reasoning, Paper-and-Pencil Balance Beam Test. A Total of 627 individuals, aged 8-47, participated in the 3 studies discussed. Results support previous research which correlates performance on proportional reasoning problems with…

Descriptors: Age Differences, Cognitive Development, Elementary Secondary Education, Formal Operations

Predictors of Achievement for Educable Mentally Retarded Children. Final Report.

Bonfield, John R. – 1968

A study of institutionalized educable mentally handicapped children (EMR's aged 6-7 to 12-6) was designed to evaluate the use of subtest combinations and learning tasks as predictors of achievement compared to single individual and group tests. Fifty-one subjects received a pretest battery of six individual tests, one group test, three learning…

Descriptors: Achievement, Achievement Tests, Age Differences, Arithmetic