A comparison of the Wechsler Adult Intelligence Scale-Revised and Kaufman's Short Form 3.

Abstract

This study investigated the relationships between the complete battery of the Wechsler Adult Intelligence ScaleRevised (WAIS-R) and Kaufman's Short Form 3 (SF3). Twenty-five men and 25 women, ages 18 to 25, were administered the complete WAIS-R from which scores were extracted for three subtests, Information, Picture Completion, and Digit Span, (i.e., SF3). For the total sample the mean WAIS-R Verbal (V), Performance (P), and Full Scale (FS) IQs were 109.00, 109.42, and 110.18, respectively. For the women the V, P, and FS IQs were 109.00, 111.00, 111.00, respectively, and for the men 108.16, 108.20, and 109.40, respectively. The mean IQs for the SF3 estimates of the Full Scale IQ were 102.00 for the entire sample, 101.04 for the women, and 103.00 for the men. The Pearson product-moment correlation coefficients between the Full Scale WAIS-R scores and the SF3 were .74 for the complete sample, .76 for the men, and .74 for the women. The correlations between the SF3 and the Verbal WAIS-R scores were .66 for the complete sample, .72 for the men, and .56 for the women. The correlations between the SF3 and the Performance WAIS-R scores were .66 for the complete sample, .67 for the men, and .71 for the women. The results of this study indicated that the SF3 may be used to estimate WAIS-R IQ scores when used with 18 to 25 year olds.