Prorating IQ scores for older adults: Validation of a seven-subtest WAIS-R with the Mayo older Americans normative sample

David Schretlen, Robert J. Ivnik

Research output: Contribution to journalArticle

11 Scopus citations


Concurrent validity of a seven-subtest short form (7SF) of the revised edition of the Wechsler Adult Intelligence Scale (WAIS-R) was examined in 733 cognitively normal adults between 56 and 99 years of age who participated in Mayo's Older Americans Normative Studies (MOANS). Pearson correlation coefficients between actual and prorated MAYO Verbal, Performance, and Full Scale IQ scores ranged from r = .93 to r = .97. Actual and prorated FSIQ scores differed by 6 points or less for 98% of participants, and the observed deviations did not vary as a function of age. These results support the use of this WAIS-R short form to prorate MAYO IQ scores for older adults.

Original languageEnglish (US)
Pages (from-to)411-416
Number of pages6
Issue number4
StatePublished - 1996


ASJC Scopus subject areas

  • Psychology(all)
  • Clinical Psychology

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