Eating Habits Questionnaire

The EHQ is a twenty-one-item self-report measure developed for the assessment of ON symptomatology⁽²⁰⁾. The EHQ is composed of three subscales that measure the problems associated with healthy eating (twelve items, e.g. ‘I turn down social offers that involve eating unhealthy food’), knowledge of healthy eating (five items, e.g. ‘I am more informed than others about healthy eating’) and positive feelings about healthy eating (four items, e.g. ‘I feel in control when I eat healthily’). Items are scored on a four-point scale ranging from 1 (false, not at all true) to 4 (very true). The scores for individual subscales and the total scale were summed, with higher scores indicating increased ON tendencies. Gleaves et al. ⁽²⁰⁾ reported high internal consistencies for the three subscales (Cronbach’s α = 0·82−0·90). Oberle et al. ⁽²¹⁾ found comparable Cronbach’s α coefficients for the total scale (0·90) and the three subscales (α = 0·73−0·87). In the present study, Cronbach’s α for the total scale was also comparable (0·89).