Psychometric Evaluation of the Eating Disorder-15 (ED-15): Factor Structure, Measurement Invariance, and Eating Disorder Caseness in Treatment Seekers.
OBJECTIVE This study examines the factor structure, measurement invariance, and discriminative ability of the Eating Disorder-15 (ED-15) questionnaire in a large transdiagnostic clinical population of treatment-seeking adults. METHOD The sample consisted of 2015 participants aged 17-79 (Mage = 30.73 years; 77.0% wome...