RESUMEN
BACKGROUND: Smoking cessation has been an important issue of concern for Taiwan's psychiatric nurses since promulgation of the Tobacco Hazards Prevention Act. However, Taiwan has lacked a qualified tool to evaluate the self-efficacy of nurses in providing smoking cessation services. PURPOSE: The purpose of this study was to validate the Chinese version of the Self- Efficacy in Smoking Cessation Service Scale (SE-SCS). METHODS: A back translation approach was used to develop the SE-SCS Chinese version. We enrolled 193 psychiatric nurses from two psychiatric centers in central and southern Taiwan to assess the reliability and validity of the Chinese version scale using internal consistency, test-retest, factor analysis, and concurrent criteria validity. RESULTS: The reliability of the SE-SCS Chinese version was assessed as good (Cronbach's α = .85) and the Pearson correlation for total test-retest score was acceptable (r = .65, p = .004). Explanatory factor analysis revealed that one factor explained 63.4% of total variance. As to the criteria validity, frequency of smoking cessation service provision was the main criterion, with a correlation of 0.25-0.26. We identified a low, but significant correlation (p < .001). CONCLUSION: The SE-SCS Chinese version appears to be a valid measure for assessing psychiatric nurse self-efficacy in providing smoking cessation services.