Master's Theses

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Date of Award

Summer 1969

Degree Name

Master of Science (MS)

Department

Psychology

Advisor

John D. King

Abstract

The purpose of this study was to determine the degree of interrelationship among the Wechsler Preschool and Primary Test of Intelligence (WPPSI), the Wechsler Intelligence Scale for Children (WISC), and the Stanford-Binet, Form L-M(S-B) when all three tests were administered to a population of kindergarten children. The S-B was used as a criterion measure against which to compare the results of the WPPSI and WISC. Ss were 24 randomly selected kindergarten children from the Hays, Kansas Public Schools. All Ss were administered the WPPSI, WISC, and S-B. Rank Difference correlation coefficients were calculated between WPPSI (V, P & FS), WISC (Y, P, & FS), and S-B IQs. Differences between correlations were determined by Hotelling's t formula for non independent r’s (Guilford, 1965). The significance of difference between mean IQs was computed by t tests and Dunnett's Test (Edwards, 1960). No significant differences were found between correlations. It was therefore concluded that S-B scores could be predicted equally well from performance on either the WPPSI or the WISC. In comparing the various mean IQs it was found that the mean WISC V IQ was significantly lower than both the mean S-B and mean WPPSI V IQs. In addition, the mean WISC FS IQ was significantly lower than the mean S-B IQ. However, no significant differences were obtained between the mean WPPSI (V, P & FS) IQs and the mean S-B IQ. Therefore, in terms of mean IQs, the WPPSI more closely approximated the S-B than did the WISC. It was concluded that the results of this study offer only marginal statistical support in favor of the WPPSI. Further research was recommended. In the meantime, the author states that the question as to which test to use remains personal and practical.

Rights

Copyright 1969 Robert A. Eckman

Comments

Notice: This material may be protected by copyright law (Title 17 U.S. Code).

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