Psychometric Properties of a Short Version of the Driving Anger Expression Inventory (DAX) in Spanish Drivers




driving anger, aggressive driving, desadaptative anger expression, psychological assessment, road safety


Driving anger and its derived aggressive behaviors may affect driving negatively. In order to assess this kind of behaviors it is necessary to have reliable and valid psycho­metric instruments. One of the most one is the Driving An­ger Expression Inventory, which in its long form is composed of 50 items. It makes it an excessive long questionnaire. The aim of the present research was to de­velop a brief version of the Driving An­ger Expression Inventory to assess in few minutes the frequency of different types of anger expression be­hind the wheel. Therefore a sample composed of 441 driv­ers who completed the long version of the Driving An­ger Expression Inventory. After­wards, those items with highest factor loadings in the Con­firmatory Factor Analysis were chosen to compose the new short form. Finally, a 22-item version was proposed. It fitted satisfactorily in five factors, similarly to the long form: Verbal anger expression (α = .84); Physical anger expression (α = .76); Expression through the vehicle (α = .74); Displaced expression (α = .78), and Adaptative ex­pression (α = .77). Implications of the results are dis­cussed.


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How to Cite

Herrero Fernández, D., Oliva-Macías, M., & Parada-Fernández, P. (2019). Psychometric Properties of a Short Version of the Driving Anger Expression Inventory (DAX) in Spanish Drivers. Acción Psicológica, 16(1), 63–74.



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