Comparison of Otis-Lennon Mental Ability Test,Elementary i Level and WISC-R IQs among Suspected Mental Retardates

Abstract

Correlations of .72, .59, and .76 were computed between the Otis-Lennon I and WISC-R Verbal, Performance, and Full Scale IQs respectively for a group of 119 public school students suspected to be mentally retarded. On this basis, WISC-R Verbal and Full Scales seem to be more sensitive than the WISC-R Performance Scale to the mental processes measured by the Otis-Lennon I. Mean differences were not significant for Full Scale IQs (p < .05). Moderate correlations between the subtest scaled scores were reported. Correlations and t tests for stratified samples by race were also computed. Values for Comprehension, Picture Completion scaled scores and Performance scaled scores were very low for Negro children (.18, −.01, .05).

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References

Otis

A. S.

Lennon

R. T.

Technical handbook. New York: Harcourt, Brace & World, 1969.

Wechsler

Wechsler Intelligence Scale for Children. New York: Psychological Corp., 1949.

Wechsler

Wechsler Intelligence Scale for Children—Revised. New York: Psychological Corp., 1974.