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The test‐retest reliability and stability of the WAIS‐R in a sample of mentally retarded adults
Author(s) -
WATKINS C. E.,
CAMPBELL V. L.
Publication year - 1992
Publication title -
journal of intellectual disability research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.941
H-Index - 104
eISSN - 1365-2788
pISSN - 0964-2633
DOI - 10.1111/j.1365-2788.1992.tb00514.x
Subject(s) - wechsler adult intelligence scale , mentally retarded , psychology , reliability (semiconductor) , test (biology) , clinical psychology , intelligence quotient , sample (material) , psychometrics , developmental psychology , psychiatry , cognition , paleontology , power (physics) , physics , quantum mechanics , biology , chemistry , chromatography
. 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.