Document Type : Original Article
Authors
1 Rajaie Cardiovascular Medical and Research Center, Cardio-Oncology Research Center, Iran University of Medical Sciences, Tehran, Iran
2 Department of Epidemiology and Biostatistics, Tehran University of Medical Sciences, Tehran, Iran
Abstract
BACKGROUND: Cardiovascular diseases are among progressive diseases that begin in childhood
and are manifested mainly in adulthood. This study was assessed the validity and reliability testing
of the Persian version of the Perceived Health Competence Scale (PHCS) among patients with
cardiovascular diseases referred to Shahid Rajaie Heart center in Tehran, Iran.
METHODS: In this cross‑sectional study, a convenience sample of 700 patients with cardiovascular
diseases referring to Shahid Rajaie Heart center in Tehran were recruited (response rate = 100%;
n = 700). Content validity was established using translation and back‑translation procedure and getting
views of the expert panel. The content validity of the questionnaire was measured using content
validity ratio (CVR) and content validity index (CVI). Reliability was ascertained using Cronbach’s
alpha. The stability was confirmed using intra‑class correlation coefficients.
RESULTS: In this study, CVI = 0.81 and CVR = 0.72 were calculated. Scale reliability was sufficient
(α = 0.78; range = 0.73–0.77). Furthermore, reliability based on the stability of the whole scale was
0.75.
CONCLUSIONS: The PHCS‑Persian confirmed as a valid and reliable instrument to measure
perceived health competence. The PHCS‑Persian scale could be a useful, comprehensive, and
culturally sensitive scale for assessing perceived health competence.
Keywords
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