Psychometric Properties of the Eating Beliefs Questionnaire (EBQ-18) in A Nonclinical Iranian Sample: A Transdiagnostic Measure

Hanieh Alasty, Department of Clinical Psychology, Kharazmi University, Tehran, Iran., Jafar Hasani, Mehdi Akbari, Shahram Mohammadkhani, Department of Clinical Psychology, Kharazmi University, Tehran, Iran., Department of Clinical Psychology, Kharazmi University, Tehran, Iran., Department of Clinical Psychology, Kharazmi University, Tehran, Iran.
2021 Practice in Clinical Psychology  
Objective: Binge eating is a transdiagnostic construct and one of the main components of eating and emotional disorders. Meta-cognitive beliefs about eating play an important role in the maintenance of binge eating. The Eating Beliefs Questionnaire (EBQ-18) is a self-report questionnaire, which measures negative, positive, and permissive beliefs about binge eating. This cross-sectional study aims to assess the psychometric properties of the EBQ-18 in a community sample. Methods: A total of 501
more » ... articipants (413=females, 88=males) were selected through multi-stage cluster sampling and were administered the EBQ-18, the Binge Eating Scale (BES), the Dutch Eating Behavior Questionnaire (DEBQ), the Body Image Concern Inventory (BICI), the Acceptance and Action Questionnaire (AAQ-II), and the Intolerance of Uncertainty Scale (UIS). Construct validity, internal consistency, convergent and divergent validity of the EBQ-18 were determined using Exploratory Factor Analysis, Confirmatory Factor Analysis. Results: The EBQ-18 possesses a three-factor structure and a high internal consistency (α=.91). The EBQ-18 showed convergent validity with the BES and the DEBQ, divergent validity with the BICI, AAQ-II, and The UIS. Conclusion: The goodness-of-fit indices were acceptable and the data showed adequate fit to the three-factor model. In conclusion, findings provide initial support for the validity and reliability of the EBQ-18.
doi:10.32598/jpcp.9.3.772.1 fatcat:xbeslybrmbdzbpsezcjqfkbkga