The diabetes management self-efficacy scale: Translation and psychometric evaluation of the Iranian version
Abstract
Background & Aim: Perceived self-efficacy could lead to self-management behaviors among diabetic patients and the Diabetes Management Self-efficacy Scale (DMSES) assesses the extent to which diabetic patients are confident that they can manage diabetes. However, the Iranian version of DMSES was not available. The objective of this study was the translation and psychometric evaluation of the Iranian version of the DMSES .
Methods & Materials: Using a standard forward-backward translation procedure, the original English language version of the questionnaire was translated into Persian (Iranian language). Then, a convenient sample of diabetic patients, who referred to a diabetes outpatient clinic and were aged 15 to 81 years, completed the questionnaire. Validity was evaluated by content validity ratio and then using factor analysis. To test the reliability, internal consistency was assessed by Cronbach’s alpha.
Results: In total, 332 diabetic patients entered into the study. The mean age of respondents was 1.8 ± 12.3 years. Employing the recommended method of scoring (ranging from 1 to 5), the mean DMSES score was 2.24 ± 0.54. Reliability analysis showed satisfactory results (Cronbach’s alpha = 0.92). Exploratory factor analysis showed 20 items of the scale could converge to 5 factors with rotation. Confirmatory factor analysis supported modified model of DMSES through which one item (item 20) moved from blood glucose factor to medical control factor. Criterion-related validity showed that the DMSES was a significant predictor of the diabetes self-management (R = 0.61; P < 0.001).
Conclusion: The study findings showed that the Iranian version of the DMSES has a good structural characteristic and is a valid and reliable instrument that can be used for measuring diabetes management self-efficacy.
Vivienne Wu SF, Courtney M, Edwards H, McDowell J, Shortridge-Baggett LM, Chang PJ. Development and validation of the Chinese version of the Diabetes Management Self-efficacy Scale. Int J Nurs Stud 2008; 45(4): 534-42.
Ramachandran A, Snehalatha C, Shetty AS, Nanditha A. Trends in prevalence of diabetes in Asian countries. World J Diabetes 2012; 3(6): 110-7.
Dall TM, Zhang Y, Chen YJ, Quick WW, Yang WG, Fogli J. The economic burden of diabetes. Health Aff (Millwood ) 2010; 29(2): 297-303.
Tahmasebi R, Noroozi A. Cross-cultural validation of the diabetes self-management scale in Iranian patients. HealthMed 2012; 6(8): 2635-41.
Norris SL, Lau J, Smith SJ, Schmid CH, Engelgau MM. Self-management education for adults with type 2 diabetes: a metaanalysis of the effect on glycemic control. Diabetes Care 2002; 25(7): 1159-71.
Goudswaard AN, Stolk RP, Zuithoff NP, de Valk HW, Rutten GE. Long-term effects of self-management education for patients with Type 2 diabetes taking maximal oral hypoglycaemic therapy: a randomized trial in primary care. Diabet Med 2004; 21(5): 491-6.
Bandura A. Social foundations of thought and action: a social cognitive theory. New York, NY: Prentice Hall; 1986. p. 39-46.
Rose V, Harris M, Ho MT, Jayasinghe UW. A better model of diabetes selfmanagement? Interactions between GP communication and patient self-efficacy in self-monitoring of blood glucose. Patient Educ Couns 2009; 77(2): 260-5.
Norris SL, Engelgau MM, Narayan KM. Effectiveness of self-management training in type 2 diabetes: a systematic review of randomized controlled trials. Diabetes Care 2001; 24(3): 561-87.
Krichbaum K, Aarestad V, Buethe M. Exploring the connection between self-efficacy and effective diabetes self-management. Diabetes Educ 2003; 29(4): 653-62.
Bijl JV, Poelgeest-Eeltink AV, Shortridge- Baggett L. The psychometric properties of the diabetes management self-efficacy scale for patients with type 2 diabetes mellitus. J Adv Nurs 1999; 30(2): 352-9.
McDowell J, Courtney M, Edwards H, Shortridge-Baggett L. Validation of the Australian/ English version of the Diabetes Management Self-Efficacy Scale. Int J Nurs Pract 2005; 11(4): 177-84.
Kara M, van der Bijl JJ, Shortridge-Baggett LM, Asti T, Erguney S. Cross-cultural adaptation of the Diabetes Management Self- Efficacy Scale for patients with type 2 diabetes mellitus: scale development. Int J Nurs Stud 2006; 43(5): 611-21.
Brislin RW. Back-Translation for Cross- Cultural Research. Journal of Cross-Cultural Psychology 1970; 1(3): 185-216.
Lawshe CH. A Quantitative Approach to Content Validity. Pers Psychol 1975; 28(4): 563-75.
Ferketich S. Focus on psychometrics. Aspects of item analysis. Res Nurs Health 1991; 14(2): 165-8.
Nunnally JC, Bernstein IH. Psychometrictheory. 3rd ed. New York, NY: McGraw- Hill; 1994. p. 120-6.
Brown TA. Confirmatory Factor Analysis for Applied Research. New York, NY: Guilford Press; 2006. p. 134-149.
Noar SM. The Role of Structural Equation Modeling in Scale Development. Structural Equation Modeling 2003; 10(4): 622-47.
Schumacker RE, Lomax RG. A Beginner's Guide to Structural Equation Modeling. London, UK: Lawrence Erlbaum Associates; 2004. p. 82.
Jacobson SF. Evaluating Instruments for Use in Clinical Nursing Research. In: Frank- Stromborg M, Olsen SJ, editors. Instruments for Clinical Health-care Research.London, UK: Jones & Bartlett Learning; 2004. p. 3-20
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| Issue | Vol 1 No 1 (2014): Winter | |
| Section | Original Article(s) | |
| Keywords | ||
| diabetes self-management self-efficacy scale validity reliability | ||
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