TY - JOUR
T1 - Clock drawing is sensitive to executive control
T2 - A comparison of six methods
AU - Royall, Donald R.
AU - Mulroy, Amy R.
AU - Chiodo, Laura K.
AU - Polk, Marsha J.
PY - 1999/9
Y1 - 1999/9
N2 - We examined six clock-drawing task (CDT) scoring systems relative to the Executive Interview (EXIT25, a measure of Executive Control Function [ECF]) and the Mini-Mental State Exam (MMSE). Subjects included n = 33 National Institute of Neurological, Communicative Disorders, and Stroke 'probable' Alzheimer's disease (AD) eases and n = 52 independent living controls. AD cases and controls differed on the EXIT25, MMSE, and all CDTs. All CDTs were significantly correlated with the EXIT25 (ranging from r = .56 to r = .78). 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 (R2 = .68) and MMSE scores (R2 = .72). Clock drawing draws upon both executive and general cognitive resources. CLOX explains incrementally more variance in ECF than other CDTs.
AB - We examined six clock-drawing task (CDT) scoring systems relative to the Executive Interview (EXIT25, a measure of Executive Control Function [ECF]) and the Mini-Mental State Exam (MMSE). Subjects included n = 33 National Institute of Neurological, Communicative Disorders, and Stroke 'probable' Alzheimer's disease (AD) eases and n = 52 independent living controls. AD cases and controls differed on the EXIT25, MMSE, and all CDTs. All CDTs were significantly correlated with the EXIT25 (ranging from r = .56 to r = .78). 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 (R2 = .68) and MMSE scores (R2 = .72). Clock drawing draws upon both executive and general cognitive resources. CLOX explains incrementally more variance in ECF than other CDTs.
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U2 - 10.1093/geronb/54B.5.P328
DO - 10.1093/geronb/54B.5.P328
M3 - Article
C2 - 10542825
AN - SCOPUS:0032846036
SN - 1079-5014
VL - 54
SP - P328-P333
JO - Journals of Gerontology - Series B Psychological Sciences and Social Sciences
JF - Journals of Gerontology - Series B Psychological Sciences and Social Sciences
IS - 5
ER -