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Psychometric evaluation of the Chinese version of the Activities of Daily Living Questionnaire (ADLQ-CV)

Published online by Cambridge University Press:  29 July 2008

Thomas K. C. Chu  and
Jenny C. C. Chung
Thomas K. C. Chu*
Affiliation:
Tung Wah Hospital, Hong Kong Hospital Authority, Hong Kong
Jenny C. C. Chung
Affiliation:
Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong
*
Correspondence should be addressed to: Thomas K.C. Chu, Occupational Therapy Department, Tung Wah Hospital, 12 Po Yan Street, Sheung Wan, Hong Kong. Phone: +852 25898272; Fax: +852 25898574. Email: [email protected].
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Abstract

Background: This study examines the psychometric properties of the Chinese version of the Activities of Daily Living Questionnaire (ADLQ-CV) in a sample of older Hong Kong Chinese adults with dementia.

Method: The ADLQ-CV was administered to primary family caregivers of 125 community-dwelling individuals with dementia. Assessments were then made of the scale's reliability, validity and factor structure.

Results: Factor analysis yielded six factors that closely resembled the six subscales proposed in the original scale. The ADLQ-CV demonstrated excellent convergent validity with the Chinese version of the Disability Assessment for Dementia (rp = −0.92, p < 0.001). The internal consistency of the ADLQ-CV was good (Cronbach's α = 0.81). Excellent test-retest reliability (ICC = 0.998) and inter-rater reliability (ICC = 0.997) of the ADLQ-CV were obtained. The ADLQ-CV showed a significant negative association with global mental states (rp = −0.80, p < 0.001), but it did not correlate with the age or educational level of individuals with dementia.

Conclusion: The findings suggest that the ADLQ-CV is a valid and reliable instrument for evaluating the functional abilities of Hong Kong Chinese people with dementia. The brevity and simplicity of administration make ita potentially useful tool for routine assessment of functional status of people with dementia in community or hospital outpatient settings.

Keywords

dementiaactivities of daily livingfunctional assessmentChinese version of ADLQ
Type
Research Article
Information
International Psychogeriatrics , Volume 20 , Issue 6 , December 2008 , pp. 1251 - 1261
Copyright
Copyright © International Psychogeriatric Association 2008

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