The test-retest reliability and stability of the WAIS-R in a sample of mentally retarded adults.
Fifty mentally retarded adults were administered the Wechsler Adult Intelligence Scale-Revised (WAIS-R) on two separate occasions, with the mean amount of time between testings being 2 years, 8 months. The data were examined in an effort to study the test-retest reliability and stability of the WAIS-R with the mentally retarded. Based on correlational, t-value and percentage of scale score change information, the authors concluded that the WAIS-R IQs appeared to possess good test-retest reliability and stability over an approximate 2.5 year period for the present sample of mentally retarded adults.
Watkins
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CE
Psychology Department, University of North Texas, Denton 76203-3587.
Campbell
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VL
D000328:Adult; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000175:diagnosis* / Q000523:psychology; D007360:Intelligence; D008297:Male; D011594:Psychometrics; D015203:Reproducibility of Results; D014888:Wechsler Scales / Q000706:statistics & numerical data*