Florence Bastien, Véronique Boudreault, Pascale Morin

Disordered eating and eating disorders are prevalent in high-performance sport and represent a significant risk, particularly among developing athletes. Early identification is essential; however, screening tools used in sport psychology research and applied settings vary widely in conceptual focus, psychometric quality, and suitability across athletic populations. As a result, practitioners and researchers may rely on instruments that are not fully aligned with the sport-specific contexts in which they are used.This project aims to identify, analyze, and compare questionnaires used to screen for eating disorders and disordered eating among elite athletes aged 12 to 24 years. The objective is to support the selection of screening tools appropriate to specific sport contexts and supported by available psychometric evidence. A scoping review will be conducted following PRISMA-ScR guidelines to map existing instruments and describe their key characteristics, including target populations, assessed constructs, contexts of use, and reported psychometric properties.Findings from the scoping review will pre-select a subset of instruments for a Delphi study involving experts in sport psychology and nutrition. This phase will examine expert perspectives on the relevance, limitations, and conditions for use of screening tools in research and applied practice. The project will conclude with the development of a decision-support tool, in the form of a decision tree, to guide the selection of screening questionnaires in sporting contexts similar to those in which the instruments have been validated.