Self-efficacy in eating management. The Spanish version of the Eating Self-Efficacy Scale/Autoeficacia en el control de la conducta de ingesta. Adaptación al castellano de la Eating Self-Efficacy Scale

This study analyses the factorial structure and psychometric properties of the Eating Self-Efficacy Scale (ESES; Glynn y Ruderman, 1986), an instrument developed to measure self-efficacy in relation to food intake. Two hundred and ninety-eight Spanish subjects participated, distributed in two groups: normal-weight group (n = 193), and overweight and obese group (n = 105). The findings reveal evidence of two situational factors (Negative Affect and Soccially Acceptable Circumstances). The confirmatory factor analysis corroborated the two-factor model on an independent sample (N = 345). The results show a high level of internal consistency. Significant correlations were found between the ESES scores and other variables that we hypothesised would be related to them.