Scores on the Wechsler Intelligence Scale for Children (WISC) were compared with those on the revised (WISC-R) edition. Five northern Texas schools provided 40 students aged 6 to 15 yr. who had Full Scale IQs between 52 and 145. Each subject was administered the WISC, followed in 28 days by the WISC-R. Correlations between scores on all comparable WISC and WISC-R subtests, except Arithmetic and Coding, were significant but small. The Verbal, Performance, and Full Scale IQs correlated .55, .58, and .62, respectively. Low correlations for this sample dictate caution in comparison and interpretation of scores on these two scales.
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