Han Gao1, Ulrika Söderhamn2, Christina Cliffordson3, Lina Guo1, Qiyun Guo1, Kun Liu1. 1. College of Nursing, Jinzhou Medical University, Jinzhou City, Liaoning Province, China. 2. Center for Caring Research-Southern Norway, Faculty of Health and Sport Sciences, University of Agder, Kristiansand, Norway. 3. Department of Health Sciences, University West, Trollhättan, Sweden.
Abstract
AIMS AND OBJECTIVES: To translate the Self-care Ability Scale for the Elderly into Simplified Chinese and to test the Chinese version of the scale regarding its reliability and validity among older people. BACKGROUND: Self-care is an important topic in nursing. When assessing older people's self-care ability, it is essential that a reliable and valid instrument is used. DESIGN: This study employed across-sectional design. METHODS: We translated the English version of the Self-care Ability Scale for the Elderly into Simplified Chinese according to Brislin's translation guidelines and carried out a questionnaire survey among 610 older people, including both community-dwelling people and hospital patients, in Jinzhou City, People's Republic of China. Eighty participants completed the instrument twice for test-retest reliability. Data analyses were performed using spss 17.0 and Mplus, version 5, to assess reliability and validity. RESULTS: A Cronbach's alpha coefficient of .89 and statistically significant item-to-total correlations showed evidence of homogeneity. An intraclass correlation coefficient of .99 for the test-retest between total scores and intraclass correlation coefficients between .87-.99 for the test-retest scores of each item explained the almost perfect test-retest reliability noted in this study. Content validity was found to be good, and a three-factor model was obtained in an exploratory factor analysis (explaining a variance of 57%) and modified in a confirmatory factor analysis (χ2 = 261.559, df = 98, root mean square error of approximation = 0.074; standardised root mean square residual = 0.059), which reflected an acceptable construct validity. CONCLUSIONS: This study shows that the Chinese version of the Self-care Ability Scale for the Elderly has sufficient psychometric properties for assessing self-care ability among older people in China. RELEVANCE TO CLINICAL PRACTICE: A reliable and valid instrument is available to assess the self-care ability of older Chinese people.
AIMS AND OBJECTIVES: To translate the Self-care Ability Scale for the Elderly into Simplified Chinese and to test the Chinese version of the scale regarding its reliability and validity among older people. BACKGROUND: Self-care is an important topic in nursing. When assessing older people's self-care ability, it is essential that a reliable and valid instrument is used. DESIGN: This study employed across-sectional design. METHODS: We translated the English version of the Self-care Ability Scale for the Elderly into Simplified Chinese according to Brislin's translation guidelines and carried out a questionnaire survey among 610 older people, including both community-dwelling people and hospital patients, in Jinzhou City, People's Republic of China. Eighty participants completed the instrument twice for test-retest reliability. Data analyses were performed using spss 17.0 and Mplus, version 5, to assess reliability and validity. RESULTS: A Cronbach's alpha coefficient of .89 and statistically significant item-to-total correlations showed evidence of homogeneity. An intraclass correlation coefficient of .99 for the test-retest between total scores and intraclass correlation coefficients between .87-.99 for the test-retest scores of each item explained the almost perfect test-retest reliability noted in this study. Content validity was found to be good, and a three-factor model was obtained in an exploratory factor analysis (explaining a variance of 57%) and modified in a confirmatory factor analysis (χ2 = 261.559, df = 98, root mean square error of approximation = 0.074; standardised root mean square residual = 0.059), which reflected an acceptable construct validity. CONCLUSIONS: This study shows that the Chinese version of the Self-care Ability Scale for the Elderly has sufficient psychometric properties for assessing self-care ability among older people in China. RELEVANCE TO CLINICAL PRACTICE: A reliable and valid instrument is available to assess the self-care ability of older Chinese people.