COMPARISON OF THE WAIS AND THE WAIS-R WITH SS OF HIGH INTELLIGENCE

The performance of highly intelligent Mensa Ss [subjects] on the WAIS [Wechsler Adult Intelligence Scale] and WAIS-R [Wechsler Adult Intelligence Scale-Revised] was compared. Tests were administered in counterbalanced order with .apprx. 3 wk between testings. No significant difference was found between initial WAIS and WAIS-R scores, in contrast to the 7.8 point differences in favor of the WAIS IQ scores reported in the WAIS-R manual. Order of administration had the following effect: WAIS/WAIS-R Ss gained a mean of 3 FS [full scale] points upon retesting, in contrast to an average 9-point gain for WAIS-R/WAIS testing. Combined order of administration data appeared to distort comparisons of WAIS and WAIS-R with this population.