Test-retest stability on the WRAT-3 reading subtest in geriatric cognitive evaluations.
The primary goal of this study was to establish the stability of the Wide Range Achievement Test (WRAT-3) Reading score across two annual assessments of aging individuals. Participants were classified as controls (n = 200), mild cognitive impairment (MCI; n = 137), or possible or probable Alzheimer's disease (AD; n = 41). Test-retest stability was acceptable to high for all diagnostic groups. The descriptive classification (e.g., "average") remained consistent for only 74% of participants. Results indicated that WRAT-3 Reading scores are appropriate for use with older adults, though the use of categorical descriptors to describe premorbid ability based on these scores is not supported.
Ashendorf
Lee
L
Department of Neurology, Alzheimer's Disease Center, Boston University School of Medicine, Boston, MA 02118-2526, USA.
Jefferson
Angela L
AL
Green
Robert C
RC
Stern
Robert A
RA
D000368:Aged; D000544:Alzheimer Disease / Q000175:diagnosis / Q000503:physiopathology / Q000523:psychology; D003071:Cognition / Q000502:physiology*; D003072:Cognition Disorders / Q000175:diagnosis / Q000503:physiopathology / Q000523:psychology; D005260:Female; D015577:Geriatric Assessment; D006801:Humans; D008297:Male; D009483:Neuropsychological Tests; D011932:Reading; D015203:Reproducibility of Results