Tehran University of Medical Sciences Iranian Journal of Psychiatry 1735-4587 14 4 2019 11 23 274 282 Masoumeh Seydi Department of Clinical Psychology, Faculty of Psychology and Educational Sciences, Semnan University, Mahdishahr, Semnan, Iran. Isaac Rahimian Boogar School of Psychology and Educational Sciences, Semnan University, Mahdishahr, Semnan, Iran. Siavash Talepasand School of Psychology and Educational Sciences, Semnan University, Mahdishahr, Semnan, Iran. 2019 05 07 Objective: This study aimed to model risky driving and predict its occurrence according to the constructs of personality organization and mentalization considering the role of aggressive driving as a mediator construct. Method: A total of 428 individuals (219 men and 209 women) were selected using convenience sampling. The participants completed self-report questionnaires on aggressive driving, risky driving, mentalization and personality organization Also, data were analyzed using structural equating model and weighted regression. Results: The results of this study showed a goof fit of the proposed structural model for predicting risky driving after some modifications (CFI = 0.95, RMSEA = 0.09). According to the results of regression weights, personality organization (regression weighted: 0.044) and aggressive driving (regression weighted: 0.98) were the strongest and mentalization (regression weighted: 0.004) was the weakest predictor of risky driving. Aggressive driving was the strongest direct predictor and personality organization the strongest indirect predictor of risky driving. Conclusion: Risky driving is a function of direct and indirect personal factors. Moreover, emotional factors have a direct effect on risky driving and more substantial constructs, such as personality, have an indirect effect on risky driving. https://ijps.tums.ac.ir/index.php/ijps/article/view/1762 https://ijps.tums.ac.ir/index.php/ijps/article/download/1762/896