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Open AccessArticle

Beliefs about Binge Eating: Psychometric Properties of the Eating Beliefs Questionnaire (EBQ-18) in Eating Disorder, Obese, and Community Samples

School of Psychology, The University of Sydney, Sydney, NSW 2006, Australia
Centre for Emotional Health, Department of Psychology, Macquarie University, North Ryde, NSW 2109, Australia
School of Medicine, Western Sydney University, Campbelltown, NSW 2560, Australia
The Peter Beumont Eating Disorder Service, Royal Prince Alfred Hospital, Sydney, NSW 2006, Australia
The Redleaf Practice, Wahroonga, NSW 2076, Australia
Mandy Goldstein Psychology, Bondi Junction, NSW 2022, Australia
Author to whom correspondence should be addressed.
Nutrients 2018, 10(9), 1306;
Received: 30 August 2018 / Revised: 12 September 2018 / Accepted: 12 September 2018 / Published: 14 September 2018
(This article belongs to the Special Issue Eating Disorders and Obesity: The Challenge for Our Times)
Binge eating is a core diagnostic feature of bulimia nervosa, binge eating disorder, anorexia nervosa binge/purge type, and is a common feature of “other specified” and “unspecified” feeding and eating disorders. It has been suggested that specific metacognitive beliefs about food, eating, and binge eating may play a key role in the maintenance of binge eating behaviour. The Eating Beliefs Questionnaire (EBQ-18) provides a brief self-report assessment tool measuring three types of metacognitive beliefs: negative, positive, and permissive beliefs about food and eating. This study aimed to build on past research by validating the factor structure and psychometric properties of the EBQ-18 using both a clinical and non-clinical sample. A sample of 688 participants (n = 498 non-clinical participants, n = 161 participants seeking treatment for an eating disorder, and n = 29 participants seeking treatment for obesity) completed a battery of questionnaires, including the EBQ-18 and other measures of eating disorder symptoms and relevant constructs. A subset of 100 non-clinical participants completed the test battery again after an interval of two-weeks, and 38 clinical participants completed the EBQ-18 before and after receiving psychological treatment for their eating disorder. A confirmatory factor analysis (CFA) was conducted and psychometric properties of this measure were assessed. The results of this study provide support for the three-factor model of the EBQ-18. In addition, the EBQ-18 was found to be a valid and reliable measure, with excellent internal consistency, good test-retest reliability in the non-clinical sample, and also demonstrated evidence of sensitivity to treatment in clinical samples with binge eating pathology. Receiver operating characteristic (ROC) curve analyses were used to identify optimal cut-off scores for the EBQ-18. This study provides valuable information about the utility of the EBQ-18 as a measure for use in both clinical and research settings. View Full-Text
Keywords: binge eating; questionnaire; psychometric; eating disorders; obesity binge eating; questionnaire; psychometric; eating disorders; obesity
MDPI and ACS Style

Burton, A.L.; Mitchison, D.; Hay, P.; Donnelly, B.; Thornton, C.; Russell, J.; Swinbourne, J.; Basten, C.; Goldstein, M.; Touyz, S.; Abbott, M.J. Beliefs about Binge Eating: Psychometric Properties of the Eating Beliefs Questionnaire (EBQ-18) in Eating Disorder, Obese, and Community Samples. Nutrients 2018, 10, 1306.

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