Validity of the Slosson and Otis-Lennon in Predicting Achievement of Gifted Students

Abstract

The efficacy of the Slosson Intelligence Test and the Otis-Lennon Mental Ability Test to predict academic achievement as measured by selected subtests of the Stanford Achievement Test (SAT) was examined. Subjects consisted of children referred, evaluated, and subsequently placed in a program for intellectually gifted students. The results of a multivariate multiple regression analysis indicated that the Slosson and Otis-Lennon significantly predict SAT Vocabulary, Reading Comprehension, and Mathematical Concepts subtests, with the Otis-Lennon in comparison with the Slosson accounting for a significantly higher proportion of the variance with SAT scores. Regression equations are provided for determining expected SAT scores based upon observed Otis-Lennon and Slosson IQs. Implications of the findings with regard to the screening of students for gifted programs are delineated.

Get full access to this article

View all access options for this article.

References

Baum, D. D. and Kelly, T. O. The validity of the Slosson Intelligence Test with LD kindergartners. Journal of Learning Disabilities, 1979, 12, 268-270.

Covin, T. and Lubimiv, A. Concurrent validity of the WRAT. Perceptual and Motor Skills, 1976, 43, 573-574.

Finn, J. D. A general model for multivariate analysis. New York: Holt, Rinehart, and Winston, 1974.

Grossman, F. M. and Johnson, K. M. WISC-R factor scores as predictors of WRAT performance: A multivariate analysis. Psychology in the Schools, in press.

Hale, R. L. The WISC-R as a predictor of WRAT performance . Psychology in the Schools, 1978, 15, 172-175.

Hartlage, L. and Steele, C. WISC and WISC-R correlates of academic achievement. Psychology in the Schools, 1977, 14, 15-18.

Karnes, F. and Brown, K. Comparison of the SIT with the WISC-R for gifted students. Psychology in the Schools, 1979, 16, 478-482.

Madden, R. , Gardner, E. R. , Rudman, H. C. , Karlsen, B. , and Merwin, J. C. Stanford Achievement Test. New York: Harcourt Brace, 1973.

Otis, A. S. and Lennon, R. T. Otis-Lennon Mental Ability Test: Technical handbook. New York: Harcourt, Brace and World, 1969.

10.

Sattler, J. M. Assessment of children's intelligence and special abilities (2nd ed.). Boston: Allyn and Bacon, 1982.

11.

Slosson, R. L. Slosson Intelligence Test. East Aurora, N. Y.: Slosson Educational Publications, 1963.

12.

Vernon, P. E. , Adamson, G. , and Vernon, D. F. The psychology and education of gifted children. London: Methuen, 1977.