Smorti, M., & Guarnieri, S.
Exploring the factor structure and psychometric properties of the Manchester Driver Behaior Questionnaire (DBQ) in an Italian sample
The goal of the present study is to provide a contribution to the adaptation and validation of the Italian version of the Manchester Driver Behavior Questionnaire (DBQ). Findings are based on a self-report questionnaire survey filled out by 360 drivers (50% males), between 18 and 41 years of age. Results of the confirmatory factor analysis showed that the hypothesized four-factor structure of the DBQ was identified. Reliability of the scale was also confirmed within the Italian context. In addition to the four first-order factors, two second-order factors (violations and unintentional mistakes) were found, supporting the original structure proposed by Reason, Manstead, Stradling, Baxter, and Campbell (1990). Finally, the present study provided support for the good criterion-related and construct validity of the DBQ. Altogether, the Italian version of the DBQ demonstrated a robust factor structure and good psychometric properties, confirming the reliability and validity of the tool also within the Italian context.Back