Development and Validation of the Breast Cancer Survivors Resilience Scale

This study aimed to develop a breast cancer survivor resilience scale (BCRS) and verify its reliability and validity. We constructed subscales based on the results of a conceptual analysis of resilience and analysis of factors that promote resilience. We verified the internal validity of the subscales by enlisting the opinion of nursing experts and conducting a preliminary survey. This process yielded a draft scale consisting of 64 items. We then conducted the main study on 230 respondents and a re-test on 37 respondents. The results yielded a scale with two factor classes - “individual protective” factors and “social protective” factors - and 16 items. Cronbach's alpha was 0.93 and the re-test correlation coefficient was 0.89, indicating that the scale has internal consistency and stability. Confirmatory factor analysis indicated statistically significant results for construct validity, criterion-related validity, and discriminant validity, thus confirming that these types of validity were sufficiently present in the scale. The BCRS has sound reliability and validity, and that with clinical application, it can become an effective scale for measuring resilience in breast cancer survivors.