J Neuropsychiatry Clin Neurosci 17:98-105, February 2005
© 2005 American Psychiatric Press, Inc.
Self-Administered Screening for Mild Cognitive Impairment: Initial Validation of a Computerized Test Battery
Jane B. Tornatore, Ph.D.,
Emory Hill, Ph.D.,
Jo Anne Laboff, M.S.W. and
Mary E. McGann, M.P.H., M.S.W.
Received February 21, 2003; revised July 13, 2003; accepted July 21, 2003. From Screen Inc., Seattle, Washington; and Bastyr University, Seattle, Washington. Address correspondence to Dr. Tornatore, Screen Inc. 3511 46th Ave. NE, Seattle, WA 98105; JBTornatore{at}comcast.net (E-mail).
The Computer-Administered Neuropsychological Screen for Mild Cognitive Impairment (CANS-MCI), a computer administered, scored, and interpreted touch screen battery was evaluated for its ability to detect mild cognitive impairment. Subjects were three hundred ten community-dwelling elders who enrolled in an National Institute on Aging (NIA)-funded study. One-month test-retest reliability correlations were all significant (p<0.05–p<0.001). Concurrent validity correlations were all significant (p<0.001). A high level of diagnostic validity was attained relative to the Weschler Memory Scale-Revised (WMS-R) LMS-II test (p<0.001). Confirmatory factor analysis supported a three-factor model indicating the tests measure the intended cognitive dimensions of memory, language/spatial fluency, and executive function/mental control. Goodness-of-fit indicators were strong (Bentler Comparative Fit Index = 0.99; Root Mean Square Error of Approximation=0.055). Initial validation analyses indicate that the CANS-MCI shows promise of being a reliable, valid screening tool in determining whether more intensive testing for early cognitive impairment is warranted.
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