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Measuring exercise self‐efficacy in Hong Kong Chinese adults with cardiovascular risk: Validation of a Chinese version of the Cardiac Exercise Self‐efficacy Instrument
Author(s) -
Cheng Ho Yu,
Chair Sek Ying,
Wang Qun,
Cao Xi,
Cheng Li,
Lee Iris F. K.
Publication year - 2019
Publication title -
research in nursing and health
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 85
eISSN - 1098-240X
pISSN - 0160-6891
DOI - 10.1002/nur.21936
Subject(s) - cronbach's alpha , exploratory factor analysis , medicine , convergent validity , physical therapy , self efficacy , psychometrics , content validity , psychology , test (biology) , internal consistency , clinical psychology , social psychology , paleontology , biology
ABSTRACT About one‐third of adults are physically inactive and thus prone to cardiovascular diseases. While self‐efficacy mediates health behavior, its influences on exercise behavior among Chinese is yet to be explored by a validated instrument. This study aimed to examine the psychometric properties of the Hong Kong Chinese version of the Cardiac Exercise Self‐efficacy Instrument (CESEI‐C), which had been translated previously by these authors. The psychometric properties of the CESEI‐C were tested with 160 Hong Kong Chinese with cardiovascular risk. Participants were asked to complete the CESEI‐C, a physical activity assessment tool, and perform the exercise stress test. Exploratory factor analysis identified a unidimensional structure of the CESEI‐C. Good internal consistency (Cronbach's alpha = 0.91) and good content validity (content validity indices: 0.93–1.00) had been reported previously. The convergent validity of the CESEI‐C was supported by the significant positive correlations between the CESEI‐C score and the amount of moderate‐to‐vigorous exercise ( r = 0.18, p = 0.03), and exercise capacity ( r = 0.30, p < 0.01). A comparison of CESEI‐C scores by exercise capacities indicated that those with moderate‐to‐high exercise capacity had significantly higher CESEI scores than those with low exercise capacity ( t = 2.105, p = 0.04). Thus, the CESEI‐C is a valid and reliable instrument to measure exercise self‐efficacy among Hong Kong Chinese.