Psychometric Properties of the Diabetes Management Self-Efficacy Scale in Korean Patients with Type 2 Diabetes

• Published in: International Journal of Endocrinology Vol. 2015; no. 2015; pp. 1 - 9
• Main Authors: Han, Seung Jin, Shortridge-Baggett, Lillie M., van der Bijl, Jaap, Lee, Eun-Hyun, Moon, Seung Hei
• Format: Journal Article
• Language: English
• Published: Cairo, Egypt Hindawi Limiteds 01.01.2015; Hindawi Publishing Corporation; Hindawi Limited; Wiley
• Subjects: Behavior; Bilingualism; Care and treatment; Diabetes; Endocrinology; English language; Exercise; Glucose; Hypothesis testing; Nutrition research; Psychological aspects; Psychometrics; Quantitative psychology; Questionnaires; Researchers; Sample size; Self-efficacy; Type 2 diabetes; Validation studies; Validity; South Korea; United Kingdom > UK
• ISSN: 1687-8337; 1687-8345
• DOI: 10.1155/2015/780701

Objectives. The aims of this study were to perform a cultural translation of the DMSES and evaluate the psychometric properties of the translated scale in a Korean population with type 2 diabetics. Methods. This study was conducted in patients with diabetes recruited from university hospitals. The first stage of this study involved translating the DMSES into Korean using a forward- and backward-translation technique. The content validity was assessed by an expert group. In the second stage, the psychometric properties of the Korean version of the DMSES (K-DMSES) were evaluated. Results. The content validity of the K-DMSES was satisfactory. Sixteen-items clustered into four-subscales were extracted by exploratory factor analysis, and supported by confirmatory factor analysis. The construct validity of the K-DMSES with the Summary of Diabetes Self-Care Activities scale was satisfactory (r=0.50, P<0.001). The Cronbach’s alpha and intraclass correlation coefficient were 0.92 and 0.85 (P<0.001; 95% CI=0.75–0.91), respectively, which indicate excellent internal consistency reliability and test-retest reliability. Conclusions. The K-DMSES is a brief instrument that has demonstrated good psychometric properties. It is therefore feasible to use in practice, and is ready for use in clinical research involving Korean patients with type 2 diabetes.