Validity and Reliability of an Instrument for Assessing Self-Care Behaviours in Diabetes Mellitus Type 2 Patients in Binjai City, Indonesia
Harahap, Novita Sari
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BACKGROUND: Self-care behaviour becomes very important for diabetic patients; good self-care behaviour will prevent complications and improving the quality of life. AIM: The aim of this study was to provide a preliminary assessment of the validity and reliability of a new measure of self-care behaviour of Diabetes Mellitus Type 2. METHODS: The research was a cross-sectional study. The study population was T2DM patients from Primary Health Centers (PHC) in Binjai City, Indonesia. Sample determination using a single simple formula for the hypothesis of one population with calculation is 115 patients; sampling was done by convenience sampling with inclusion and exclusion criteria. Research questionnaire Self-care behaviour of T2DM patients was forming by knowledge, attitudes, communication, family support, financing, motivation, and self-efficacy. Each of the predictors forms self-care behaviour and finally, the instrument consists of 28 questions. The data analysis techniques were Confirmatory Factor Analysis (CFA) tests with Structural Equation Models (SEM) with AMOS aids. RESULTS: Based on the results of the confirmatory analysis proved that the instrument is valid and reliable, the measure the self-care behaviour of T2DM. CONCLUSION: The new instrument for assessing self-care behaviour of T2DM patients is valid and reliable, besides being able to assess self-care behaviour, they can also know the components that make up self-care.