2.2.1. Risk of Eating Disorders (EDE-QS)

EDE-QS was developed as a 12-item version of the Eating Disorder Examination Questionnaire (EDE-Q), for use in sessional outcome monitoring [36]. The Cronbach’s alpha for EDE-QS was 0.80, indicating good internal consistency. EDE-QS assesses the frequency or severity of core eating disorder symptoms for the main disorders, AN, BN, and BED, over the past seven days [41]. The responses to the 12 items are recorded on a four-point rating scale, ranging from 0 = “0 days” or “not at all” to 3 = “6–7 days” or “markedly”. The scores for each of the items are summed to obtain a total score of 0 to 36, where higher scores indicate more frequent and severe eating disorder symptoms, and thus a higher risk of eating disorder [36,41]. While screening for clinically significant eating disorder symptoms using the EDE-QS, a cut-off point of 15 has been proposed as a threshold score to identify a high risk of eating disorder [41].