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Clin Neuropsychol. 2009 Apr;23(3):479-500. doi: 10.1080/13854040802368684. Epub 2008 Sep 12.

Cognitive abilities and functional capacity in older adults: results from the modified Scales of Independent Behavior-Revised.

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  • 1Department of Psychology, University of Victoria, Victoria, BC, Canada.


The relationship between cognitive and functional abilities was examined in a sample of community-dwelling older adults. Self and informant (e.g., spouse) reports of participants' functional status were obtained on the modified Scales of Independent Behavior-Revised (mSIB-R). Participants also completed measures of processing speed, episodic memory, executive functioning, and verbal ability. Results showed that the mSIB-R correlated positively with cognitive variables. Hierarchical regression analyses suggested that each mSIB-R factor is predicted by somewhat different cognitive variables, after adjusting for demographic, health, and motor variables. This report-based measure was as accurate as a performance-based measure in classifying cognitive groups. Informant social/cognitive engagement and self physical/environment engagement factors showed the most promise in this regard. The findings reveal links between cognitive and functional abilities in a sample with varying degrees of cognitive impairment.

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