Tehran University of Medical Sciences Iranian Journal of Psychiatry 1735-4587 11 1 2016 02 23 37 42 EN Seyyed Salman Alavi‎ Psychiatry and Psychology Research Center, Tehran University of Medical Sciences, Tehran, Iran Mohammad reza‏ ‏ Mohammadi‎ Psychiatry and Psychology Research Center, Tehran University of Medical Sciences, Tehran, Iran Hamid Soori‎ Safety Promotion and Injury Prevention Research Center, Shahid Beheshti University of Medical Science, Tehran, Iran Soroush Mohammadi Kalhori Young Researchers and Elite Club, Roudehen Branch, Islamic Azad University, Roudehen, Iran, and Psychiatry and Psychology Research Center, Tehran University of Medical Sciences, Tehran, Iran Neda Sepasi Psychiatry and Psychology Research Center, Tehran University of Medical Sciences, Tehran, Iran Rasoul Khodakarami Psychiatry and Psychology Research Center, Tehran University of Medical Sciences, Tehran, Iran Mojtaba Farshchi Psychiatry and Psychology Research Center, Tehran University of Medical Sciences, Tehran, Iran Niloofar Hasibi‎ Psychiatry and Psychology Research Center, Tehran University of Medical Sciences, Tehran, Iran Soodabeh Rostami‎ Psychiatry and Psychology Research Center, Tehran University of Medical Sciences, Tehran, Iran Hadis Razi Psychiatry and Psychology Research Center, Tehran University of Medical Sciences, Tehran, Iran Mohammad Babareisi Psychiatry and Psychology Research Center, Tehran University of Medical Sciences, Tehran, Iran 2016 02 22 Objective: Since the study of driving behavior is of great  importance, we conducted this research to ‎investigate the psychometric properties and the factorial structure of the Manchester Driver ‎Behavior Questionnaire (DBQ) in Iranian drivers.‎ Method: This cross – sectional research was performed on a sample of 800 drivers (of category D and ‎C) aged 23- 75 who were referred to Imam Sajjad Centre for drug Addiction Diagnosis. ‎Manchester Driver Behavior Questionnaire (DBQ), a demographic questionnaire, were ‎conducted to the sample. To analyze data, we used factor analysis, internal consistency ‎‎(Cronbach's’α), split half, and test-retest using SPSS18 Software.‎ Results: As a result of reliability analysis and exploratory factor analysis by principal component and Varimax rotation, we extracted six factors (willful violations, unintentional errors, advertent errors, deliberate mistakes, unintentional violation, and unintentional mistakes, respectively). The factors reliability ranged from 0.65 to 0.75. The test-retest correlations of the DBQ and split- half reliability were 0.56 and 0.77, respectively. Conclusion: The results revealed that the Persian version of the DBQ in category D and C drivers is a ‎valid and reliable tool to assess driving behaviors in Iranian drivers.‎ https://ijps.tums.ac.ir/index.php/ijps/article/view/624 https://ijps.tums.ac.ir/index.php/ijps/article/download/624/551