Scoring and validation of the Clock Face Test in psychometric assessment of elderly subjects
Montani, C.; Bouati, N.; Pélissier, C.; Couturier, P.; Jasso-Mosqueda, G.; Hugonot, R.; Franco, A.
L'Encephale 23(3): 194-199
1997
ISSN/ISBN: 0013-7006 PMID: 9333550 Document Number: 481480
To propose an original evaluation and validation of the Clock Face Test (CFT). Outpatients; 163 elderly people, aged over 65 years. Factory analysis, Student's test. The test shows a positive correlation with Folstein's MMSE (r = 0.769) and Signoret's BEC 96 (r = 0.644), a good specificity (75% with MMSE; 79% with BEC 96) and a good sensitivity (87% with MMSE; 74% with BEC 96). Four factors are identified by factory analysis; 74% of the variancy is explained by the first three factors. The CFT is a valid tool, easy to conduct. Several applications are possible for diagnosis, psychometric control and therapeutic trials.