Reza Shahi - Assistant Professor, Department of Statistics, Tabriz Branch, Islamic Azad University, Tabriz, Iran.
rana peighami - PhD student in psychology, Department of Psychology, Tabriz Branch, Islamic Azad University, Tabriz, Iran.
saba mohammadi delband - PhD student in psychology, Department of Psychology, Tabriz Branch, Islamic Azad University, Tabriz, Iran.
atefe hojjati - PhD student in psychology, Department of Psychology, Tabriz Branch, Islamic Azad University, Tabriz, Iran.

Objective: The purpose of this study was to provide a structural equation modeling for the effect of personality traits on bulimia nervosa with the mediating role of emotional intelligence in nurses. Methods: This research was a descriptive-correlational study that employed structural equation modeling with partial least squares. The research population consisted of all nurses of medical sciences hospitals in Tabriz in ۲۰۲۲. The research sample was ۳۳۵ people who were selected using stratified sampling. The research tools employed for this purpose were the shorter form of NEO-FFI (NEO Five-Factor Inventory; ۱۹۸۵), the Binge Eating Scale (BES; Gormally et al., ۱۹۸۲), and Schering's Emotional Intelligence Questionnaire (۱۹۹۶). Partial least squares structural equation modeling (PLS-SEM) and Smart PLS ۳ plus SPSS ۲۶ were used for data analysis.  Results: The results showed that in the proposed model, the five main personality traits, except the extroversion variable, have a significant direct and indirect effect on bulimia nervosa,  and another implication of this research is the significant direct effect of emotional intelligence on bulimia nervosa. Another finding was the significant direct effect of the main personality traits on emotional intelligence. Conclusion: The results suggest that interventions for bulimia nervosa should embed education on personality traits and emotional intelligence because, according to the findings, the lower the personality traits, such as neuroticism and higher emotional intelligence, the lower the probability of bulimia nervosa.

Bulimia Nervosa, main personality traits, emotional intelligence