Iranian Version of Manchester Driving Behavior Questionnaire (MDBQ): Psychometric

Objective: Since the study of driving behavior is of great importance, we conducted this research to ‎the psychometric properties and the factorial structure of the Manchester Driver ‎Questionnaire (DBQ) in Iranian drivers.‎ Method: This cross – sectional research was performed on a sample of 800 drivers (of category D and ‎23- 75 who were referred to Imam Sajjad Centre for drug Addiction Diagnosis. ‎Driver Behavior Questionnaire (DBQ), a demographic questionnaire, were ‎to the sample. To analyze data, we used factor analysis, internal consistency ‎‎ 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 testretest 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 ‎and reliable tool to assess driving behaviors in Iranian drivers.‎