Development and preliminary validation of the Coach Self-Efficacy Body Image Scale (CSEBIS)

Body image concerns are a commonly cited reason for sport drop out. Researchers have begun to explore the influence of coaches on athletes' body image. However, no measure exists to accurately and easily assess interventions or predict coaches' body image supportive behaviors. Using Self-Efficacy Theory as a conceptual framework, the Coach Self-Efficacy Body Image Scale (CSEBIS) was developed. Content validity was judged by a panel of experts (N = 3) and through interviews with coaches (N = 4) across various sports and experience levels. Following initial item iteration, the CSEBIS was assessed with 682 coaches for reliability and validity. The 27 items across four subscales (knowledge, recognition, engagement, disengagement) showed good reliability (internal consistency, test-retest reliability, inter-item and item-total correlations), validity (convergent and discriminant validity, differentiation between known groups), factor structure, and model invariance across gender. Developing and initially validating the CSEBIS contributes to the existing literature by providing researchers with a novel scale to measure coaches' confidence in identifying and addressing body image concerns among their athletes. Following further testing, this instrument may be used to assess the effectiveness of body image education and intervention efforts in sport, and the impact of coaches' attitudes and behaviors on athletes' body image.