Psychometric properties of a Korean version of the summary of diabetes self-care activities measure
Eun Jin Choi ; Moonsuk Nam ; Sang Hui Chu ; Ji Soo Yoo ; Deborah J. Toobert ; Chang Gi Park ; So Hun Kim
International Journal of Nursing Studies, Vol.48(3) : 333~337, 2011
International Journal of Nursing Studies
BACKGROUND: The summary of diabetes self-care activities (SDSCA) questionnaire is one of the most widely used self-report instruments for measuring diabetes self-management in adults.
OBJECTIVES: This study aimed to examine the psychometric properties of a Korean version of the SDSCA questionnaire.
METHODS: The 11-item English version of the SDSCA was translated into Korean following the standard translation methodology. The questionnaire was administered to 208 patients with type 2 diabetes. Exploratory and confirmatory factor analyses (EFA and CFA) were carried out for construct validity. Content validity index (CVI), internal consistency and a diabetes management self-efficacy scale (DMSES) were assessed.
RESULTS: The CVI of a Korean version of the SDSCA was .83. The EFA yielded a 9-item measure with a four factor solution with the same labels for original scales. The results of CFA showed the goodness of fit in the 9-item Korean SDSCA version (SDSCA-K). The internal consistency of SDSCA-K was moderate (Cronbach's α=.69) and the positive correlation between the SDSCA-K and the DMSES was identified.
CONCLUSION: The current study provides the initial psychometric properties of SDSCA-K modified to 9 items and supports SDSCA-K as a reliable and valid measure of diabetes self-management in Korean patients.