WAIS-R test-retest reliability in a normal elderly sample

We examined the 1-year test-retest reliability of WAIS-R Verbal, Performance, and Full-Scale IQs in a sample of 101 older normal individuals (mean age = 67.1). The respective Pearson rs were .86, .85, and .90. The median retest reliability coefficient for the WAIS-R subtests was .71. The test-retest...

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Bibliographic Details
Published inJournal of clinical and experimental neuropsychology Vol. 11; no. 4; p. 423
Main Authors Snow, W G, Tierney, M C, Zorzitto, M L, Fisher, R H, Reid, D W
Format Journal Article
LanguageEnglish
Published England 01.08.1989
Subjects
Aged
Aging - psychology
Female
Follow-Up Studies
Humans
Intelligence
Male
Prospective Studies
Reference Values
Wechsler Scales
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Summary:We examined the 1-year test-retest reliability of WAIS-R Verbal, Performance, and Full-Scale IQs in a sample of 101 older normal individuals (mean age = 67.1). The respective Pearson rs were .86, .85, and .90. The median retest reliability coefficient for the WAIS-R subtests was .71. The test-retest reliability for the Verbal-Performance Discrepancy was .69. These data indicate that IQ scores are reliable in older normal individuals for this retest interval, but less confidence can be placed in the reliability of subtest scores and the Verbal-Performance Discrepancy.
ISSN:1380-3395
DOI:10.1080/01688638908400903