Psychometric Properties of the Short-Form Revised Lifestyle Evaluation Scale for Metabolic Syndrome–Korean

Abstract

Purpose

The purpose of the study was to evaluate the validity and reliability of a short-form Revised Lifestyle Evaluation Scale for Metabolic Syndrome (RLES-MS)–Korean.

Methods

A cross-sectional survey was administered to 211 people with diabetes who were taking medication for metabolic syndrome and attending an outpatient clinic at a university-affiliated hospital in Suwon, Korea. Structured questionnaires were used for the psychometric evaluation. The RLES-MS validity was examined using exploratory factor analysis, and reliability was assessed using Cronbach’s alpha and McDonald’s omega.

Results

The interitem correlation analyses identified 2 low-correlation items, resulting in a 15-item scale. Factor analysis identified 4 dimensions of the RLES-MS: healthy eating and being active, monitoring and managing target goals, healthy coping, and awareness and taking medication. The 4-factor model explained 58.65% of the total variance. Item 8 (taking medication) scored the highest, and Item 2 (healthy eating) scored the lowest, followed by Item 13 (monitoring and managing the target values). Overall, Cronbach’s alpha and McDonald’s omega were .864 and .866, respectively. The RLES-MS showed significant associations with quality of life (r = .426, P < .001), self-efficacy (r = .530, P < .001), depressive symptoms (r = −.430, P < .001), and A1C (r = −.163, P = .018).

Conclusions

The RLES-MS showed good validity and moderate reliability, supporting its clinical use for evaluating lifestyle behaviors in Korean people with diabetes and metabolic syndrome.