Centre for Policy on Ageing



A study of the reliability and validity of the Chinese version of the Dementia Rating Scale
Author(s)	Irene H L Chan, Andrew M H Siu
Journal title	International Psychogeriatrics, vol 17, no 1, March 2005
Pages	pp 69-80
Source	http://journals.cambridge.org
Keywords	Dementia ; Evaluation ; Chinese language ; Reliability ; Hong Kong.
Annotation	The Dementia Rating Scale (DRS) was translated into Chinese and its content validity was evaluated by an 11-member expert panel. To assess reliability and concurrent validity, 52 subjects with dementia were recruited from Hong Kong medical and psychogeriatric settings using purposive sampling. With percentage of agreement as an indicator, 28 out of 36 items (78%) had satisfactory content validity. Items with a percentage of agreement below 70% were reviewed and modified, based on the comments of the experts. The CDRS had excellent test-retest and inter-rater reliability, with intra-class correlation coefficient (ICC) at 0.94 and 0.93 respectively. Intra-class correlation coefficients ranged between 0.75 and 0.89 for the subscales. The CDRS had high correlation with the Chinese Mini-Mental State Examination (r=0.8 for total score, r=0.58 to 0.84 for subscales).The CDRS is a valid instrument for the assessment of dementia in Chinese-speaking subjects. (RH).
Accession Number	CPA-050609202 A
Classmark	EA: 4C: 6WS: 5HC: 7DR
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...from the Ageinfo database published by Centre for Policy on Ageing.