Validity of the Wonderlic Personnel Test as a brief IQ measure in psychiatric patients.

100 male psychiatric inpatient referrals (mean age 41.18 yrs) for psychological testing were administered the Wonderlic Personnel Test and the Wechsler Adult Intelligence Scale—Revised (WAIS—R) in a counterbalanced order. In this clinical context, the Wonderlic proved not to be an acceptable alternative to the WAIS—R. The tests correlated only moderately (.75), differed in mean IQ level, and agreed in IQ classification in only 40% of the cases. Efforts to improve these results by devising new IQ correction factors resulted in only slight improvements. (6 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)