Duarte, P. A. S., Palmeira, L., & Pinto-Gouveia, J. (2020). The Three-Factor Eating Questionnaire-R21: a confirmatory factor analysis in a Portuguese sample. Eating and Weight Disorders - Studies on Anorexia, Bulimia and Obesity, 25, 247–256. https://doi.org/10.1007/s40519-018-0561-7