Due to the role of the human factor in traffic accidents and the effort to prevent these accidents, it is necessary to distinguish between different forms of risk behaviour of drivers and their different psychological causes (motives). The aim of this study is to prepare and experimentally verify the reliability and factor validity of the Czech version of the Driver Behaviour Questionnaire (DBQ) and provide orientational norms for the population of Czech drivers. In addition, predictors of individual factors of driving behaviour are discussed, which define groups of drivers showing a tendency towards specific types of driving behaviour. This article also deals with practical impacts in relation to driver training, assessment, preventive measures and driver's assistance systems in the vehicle. The original 50-item version of the DBQ questionnaire was translated and subsequently adapted to the population of Czech drivers. The study involved a total of 2,684 Czech drivers, of which 1,791 were men and 893 were women. Responses to all 50 items were subjected to exploratory and confirmatory factor analyses. The results confirm that DBQ can be modeled as a two-factor method where the first factor can be described as unintentional driving mistakes, the other as deliberate committing of traffic offenses. Of all tested models, the best fit was observed using a shortened 36-item version of the questionnaire. Omega coefficients for both scales exceeded 0.85. The limitation of this study, which has to be taken into the account especially when dealing with the norms, is age structure of the research sample, when young drivers are dominant and drivers older 65 years are represented rarely.