Updating the Cognitive Performance Scale. (January 2016)

• Record Type: Journal Article
• Authors: Morris, John N.; Howard, Elizabeth P.; Steel, Knight; Perlman, Christopher; Fries, Brant E.; Garms-Homolová, Vjenka; Henrard, Jean-Claude; Hirdes, John P.; Ljunggren, Gunnar; Gray, Len; Szczerbińska, Katarzyna
• Is Part Of: Journal of geriatric psychiatry and neurology. Volume 29:Number 1(2016)
• Page Start: 47
• Page End: 55
• Publication Date: 2016-01
• Subjects: cognitive decline -- cognitive impairment -- geriatrics -- elderly; Geriatric neurology -- Periodicals; Geriatric neuropsychiatry -- Periodicals; Geriatric psychiatry -- Periodicals; Nervous system -- Diseases -- Periodicals; 618.97689
• DOI: 10.1177/0891988715598231
• Languages: English
• ISSNs: 0891-9887

Abstract

This study presents the first update of the Cognitive Performance Scale (CPS) in 20 years. Its goals are 3-fold: extend category options; characterize how the new scale variant tracks with the Mini-Mental State Examination; and present a series of associative findings. Secondary analysis of data from 3733 older adults from 8 countries was completed. Examination of scale dimensions using older and new items was completed using a forward-entry stepwise regression. The revised scale was validated by examining the scale's distribution with a self-reported dementia diagnosis, functional problems, living status, and distress measures. Cognitive Performance Scale 2 extends the measurement metric from a range of 0 to 6 for the original CPS, to 0 to 8. Relating CPS2 to other measures of function, living status, and distress showed that changes in these external measures correspond with increased challenges in cognitive performance. Cognitive Performance Scale 2 enables repeated assessments, sensitive to detect changes particularly in early levels of cognitive decline.