Measuring how well the Night Eating Questionnaire reflects the severity of Night Eating Syndrome

The Night Eating Questionnaire (NEQ) demonstrated acceptable reliability with an alpha of 0.70.

• Four factors were identified in the NEQ: nocturnal ingestions, evening hyperphagia, morning anorexia, and mood/sleep.
• A higher-order construct explained 99% of the covariation among the identified factors.
• The NEQ showed convergent validity with measures related to night eating, disordered eating, sleep, mood, and stress.
• Discriminant validity was established by comparing scores of obese bariatric surgery candidates with and without Night Eating Syndrome.

Simplified