Validity and reliability of the DMSES UK: a measure of self-efficacy for type 2 diabetes self-management

J. Sturt, H. Hearnshaw, M. Wakelin
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引用次数: 63

Abstract

Objectives Self-efficacy is an important outcome measure of self-management interventions. We aimed to establish UK validity and reliability of the diabetes management self-efficacy scale (DMSES). Methods The 20 item DMSES was available for Dutch and US populations. Consultation with people with type 2 diabetes and health professionals established UK content and face validity resulting in item reduction to 15. Participants were adults with type 2 diabetes enrolled in a randomised controlled trial (RCT) of the diabetes manual, a self-management education intervention, with an HbA1c over 7% and who understood English. Baseline trial data and follow-up control group data were used. Results A total of 175 participants completed all 15 items. Pearson’s correlation coefficient of −0.46 (P < 0.0001) between the DMSES UK and the problem areas in diabetes scale demonstrated criterion validity. Intra-class correlation between data from 67 of these participants was 0.77, demonstrating test-retest reliability. The correlation coefficients between item scores and total scores were >0.30. Cronbach’s alpha was 0.89 over all items. Conclusion This evaluation demonstrates that the scale has good internal reliability, internal consistency, construct validity, criterion validity, and test-retest reliability. Practice Implications The 15 item DMSES UK is suitable for use in research and clinical settings to measure the self-efficacy of people living with type 2 diabetes in managing their diabetes.
英国DMSES的效度和信度:衡量2型糖尿病自我管理的自我效能
目的自我效能感是自我管理干预的重要结果测量指标。我们的目的是建立糖尿病管理自我效能量表(DMSES)的英国效度和信度。方法对荷兰和美国人群进行20项DMSES调查。与2型糖尿病患者和卫生专业人员协商建立了英国内容和面效度,导致项目减少到15个。参与者为成年2型糖尿病患者,纳入糖尿病手册(一种自我管理教育干预)的随机对照试验(RCT), HbA1c超过7%,懂英语。采用基线试验资料和随访对照组资料。结果175名被试完成了全部15个项目。英国DMSES与糖尿病量表中问题区域之间的Pearson相关系数为- 0.46 (P < 0.0001),证明了标准的有效性。其中67名参与者的数据之间的类内相关性为0.77,证明了重测信度。单项得分与总分的相关系数均>0.30。所有项目的Cronbach 's alpha为0.89。结论本量表具有良好的内部信度、内部一致性、结构效度、标准效度和重测信度。英国DMSES的15个项目适用于研究和临床环境,用于测量2型糖尿病患者在控制糖尿病方面的自我效能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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