| Abstract: | Confidence intervals for the WAIS-R were computed for the Verbal, Performance, and Full Scale IQ scores. IQ intervals for the 85, 90, 95, and 99% levels of confidence are reported for each of the 9 standardization sample age groups and the entire sample. Differences between Verbal and Performance IQ scores required for 90 and 99% levels of significance are also reported. All values are computed on the basis of the standard errors of measurement reported in the WAIS-R manual for the standardization sample. (5 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved) |
