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Clinical Issues

Mayo Older Americans Normative Studies: Factor Analysis of an Expanded Neuropsychological Battery

, , , &
Pages 7-20 | Accepted 02 Jan 2008, Published online: 10 Jun 2009
 

Abstract

The Mayo Cognitive Factor Scores were derived from a “core battery” consisting of the WAIS-R, WMS-R, and Auditory Verbal Learning Test. The present study sought to clarify the factor structure of an expanded neuropsychological battery in normal elderly controls. Confirmatory factor analysis was performed on the WAIS-III, WRAT-3 Reading, Boston Naming Test, Controlled Oral Word Association Test, Category Fluency, Rey-Osterreith Complex Figure, Visual Form Discrimination, and Trail Making Test A & B. A base four-factor model consistent with the WAIS-III factor structure was utilized. Only one novel five-factor model differentiating processing and motor speed tests improved upon this base model. Other models did not, including a factor for executive function, division of construction/visuospatial ability, or “hold”/“no hold” language abilities.

Acknowledgments

Supported in part by NIA grant, Robert H. and Clarice Smith and Abigail Van Buren Alzheimer's Disease Research Program of the Mayo Foundation, Mayo Alzheimer's Disease Research Center P50 AG16574, and the Mayo Alzheimer's Disease Patient Registry UO1 AG06786

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