Faculty Articles
Assessing The Cognitive Abilities That Differentiate Patients with Alzheimer’s Disease From Normals: Single And Multiple Factor Models
Document Type
Article
Publication Date
3-2004
Publication Title
International Journal of Geriatric Psychiatry
Volume
19
Issue/Number
3
First Page
232
ISSN
0885-6230
Last Page
242
Abstract/Excerpt
Background: Understanding the structure of cognitive abilities in Alzheimer's disease (AD) has considerable practical and theoretical importance. Some investigators have argued that a single cognitive process underlies the deficits seen in AD, while others have argued for multiple cognitive processes. As deficits in cognitive abilities may reflect the pathological process or processes occurring in AD, determination of the structure of abilities in AD is important.
Objectives: The purpose of this study was to assess the utility of single and multiple ability factor models in differentiating patients with AD from normals.
Results: Findings show that although a single factor model accounts for a large part of the variability of a battery of measures used to differentiate patients and normals, a multiple factor model performed substantially better based on multiple fit criteria.
Conclusions: At least in this sample, a multiple ability factor model of cognitive abilities fit data better than a single factor model in differentiating patients with AD from normals.
DOI
10.1002/gps.1056
NSUWorks Citation
Ownby, R. L.,
Loewenstein, D. A.,
Schram, L.,
Acevedo, A.
(2004). Assessing The Cognitive Abilities That Differentiate Patients with Alzheimer’s Disease From Normals: Single And Multiple Factor Models. International Journal of Geriatric Psychiatry, 19(3), 232-242.
Available at: https://nsuworks.nova.edu/cps_facarticles/626