Updating the Cognitive Performance Scale

• Published in: Journal of geriatric psychiatry and neurology Vol. 29; no. 1; p. 47
• Main 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
• Format: Journal Article
• Language: English
• Published: United States 01.01.2016
• Subjects: Aged; Aged, 80 and over; Cognition - physiology; Cognition Disorders - diagnosis; Dementia - diagnosis; Female; Geriatric Assessment - methods; Humans; Male; Memory, Short-Term - physiology; Neuropsychological Tests - standards; Reproducibility of Results; Sensitivity and Specificity; geriatrics; cognitive impairment; cognitive decline; elderly
• ISSN: 0891-9887; 1552-5708
• DOI: 10.1177/0891988715598231

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.