Centre for Policy on Ageing



Clock drawing is sensitive to executive control — a comparison of six methods
Author(s)	Donald R Royall, Amy R Mulroy, Laura K Chiodo
Journal title	The Journals of Gerontology Series B: Psychological Sciences and Social Sciences, vol 54B, no 5, September 1999
Pages	pp P328-333
Keywords	Dementia ; Assessment procedures for mental patients ; Comparison ; United States of America.
Annotation	The authors examined the clock-drawing task (CDT) scoring system relative to the Executive Interview (EXIT25, a measure of executive control function - ECF) and the Mini-Mental State Examination (MMSE). Subjects included 33 National Institute of Neurological, Communicative Disorders, and Stroke "probable" Alzheimer's disease (AD) cases, and 52 independent living controls. AD cases and controls differed on the EXIT25, MMSE and all CDTs. All CDTs were significantly correlated with the EXIT25. These associations generally persisted after adjusting for age, education, and MMSE scores. In backwards stepwise linear multivariate regression models, only CLOX: an executive clock-drawing task scores contribute significantly to EXIT25 scores and MMSE scores. Clock Drawing draws upon both executive and general cognitive resources. CLOX explains incrementally more variance in ECF than other CDTs. (RH).
Accession Number	CPA-991220222 A
Classmark	EA: DA:4C: 48: 7T
Data © Centre for Policy on Ageing

...from the Ageinfo database published by Centre for Policy on Ageing.