Psychometric Properties of the Persian Version of Cardiovascular Management Self-efficacy Scale

Abstract

Background Self-efficacy plays a major role in the management of cardiovascular disease (CVD). The original Cardiovascular Management Self-efficacy Scale (CMSS) was developed in 2016 in Italian patients with CVD; however, no such scale exists for Iranian patients with CVD. Objective We translated the CMSS into Persian and assessed its validity, reliability, and psychometric properties in Iranian patients with CVD. Methods This study was conducted for 4 months in 2017 on a group of consenting patients with CVD (N = 363) recruited from a cardiovascular hospital in Kermanshah, Iran. The reliability of the Persian CMSS was evaluated. We assessed validity, including face, content, construct, convergent, divergent, and discriminate validity, using the General Self-efficacy Scale, the Hospital Anxiety and Depression Scale, and the 36-item Short Form Health Survey Scale. Known-group validity was assessed among patients with high blood pressure. Results The Persian CMSS had acceptable face and content validity. No floor or ceiling effects were found for the total scale. Cronbach α was calculated as.68. Test-retest reliability was confirmed by intraclass correlation coefficient (ICC1,3 = 0.98, P