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Year : 2021  |  Volume : 26  |  Issue : 1  |  Page : 71

Assessment of eating disorder psychopathology: The psychometric properties of the Persian version of the Eating Disorder Examination Questionnaire Short Form

1 Department of Psychiatry, Golestan Hospital, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
2 Department of Biostatistics, School of Public Health, Kermanshah University of Medical Sciences, Kermanshah, Iran
3 Department of Health, Behavioral and Cognitive Science Research Center, Rescue and Treatment of Police Force, Tehran, Iran
4 Department of Clinical Psychology, Kermanshah University of Medical Sciences, Kermanshah, Iran

Correspondence Address:
Dr. Youkhabeh Mohammadian
Department of Clinical Psychology, Kermanshah University of Medical Sciences, Kermanshah
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jrms.JRMS_230_20

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Background: Eating disorders are complicated health problems that affect both the body and the mind. Eating disorders pose a serious challenge to mental health services because of their often chronic pathway. The current study was done to determine the psychometric properties of the Eating Disorder Examination Questionnaire Short Form (EDE-QS). Materials and Methods: Persian version of the EDE-QS was produced through forward-translation, reconciliation, and back-translation. The design of this research was cross- sectional. A sample of 302 Tehran university's students in 2019–2020 was selected through convenience sampling method and completed a set of questionnaires, including the EDE-QS, Eating Attitude Test (EAT-16), Eating Beliefs Questionnaire-18 (EBQ-18), Self-Esteem Scale (SES), and Self-Compassion Scale (SCS) Short Form. The construct validity of the EDE-QS was assessed using confirmatory factor analysis and divergent and convergent validity. Internal Consistency and test–retest reliability were conducted to evaluate the reliability. Data analysis was conducted using SPSS (version 22) software and LISREL (version 8.8). Results: EDE-QS was found to be valid and reliable measures, with good internal consistency and good test–retest reliability among students. Cronbach's alpha coefficient for the whole of scale was 0.85. Intraclass correlation coefficient for the whole of scale was 0.90. In terms of convergent validity, EDE-QS showed a significant positive correlation with self-report measures of EAT-16 and EBQ-18 (P < 05). EDE-QS showed a negative correlation with self-compassion and self-esteem, thus demonstrated a good divergent validity (P < 05). The results of this study also provide support for the one-factor model of the EDE-QS (root mean square error of approximation = 0.08, Normed Fit Index [NFI] = 0.90, Incremental Fit Index = 0.92, non-NFI = 0.90, and Comparative Fit Index = 0.92). Conclusion: The EDE-QS showed good validity and reliability and could be useful in assessing eating disorder psychopathology in a nonclinical population of students. The EDE-QS shows notable promise as a measure for use in eating disorder research and clinical settings.

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