Abstract
Background and Purpose: The aim of the study was to examine the psychometric properties of the Sickle Cell Self-efficacy Scale (SCSES) in an anonymous, online cohort of adults with sickle cell disease (SCD). Methods: The SCSES was completed by 60 adults with SCD. An exploratory factor analysis was conducted. Convergent validity and discriminant validity were assessed using bivariate correlations between the SCSES and other study variables, and internal consistency reliability was evaluated through examining an alpha coefficient. Results: A unidimensional factor structure explained 49.6% of the variance in self-efficacy. The SCSES demonstrated convergent validity and discriminant validity with the select battery of measured concepts and sufficient internal consistency reliability (Cronbach's alpha = .87). Conclusions: The SCSES remains a valid and reliable measure of SCD self-efficacy among adults when used in anonymous, online research.
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