Short and user-friendly: The development and validation of the Mini-DBQ

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2013-01-01
Martinussen, Laila M.
Lajunen, Timo
Moller, Mette
Özkan, Türker
The Driver Behavior Questionnaire (DBQ) is used to measure aberrant driver behavior by asking drivers how often they engage in various aberrant driver behaviors. Since the development of the original DBQ several modified versions have been developed. The difference between the various versions is that new items are added or existing items modified or excluded. However, despite the differences, all versions are relatively long and therefore time-consuming and tiring to answer, which might limit the usability of the instrument. The main purpose of the present study was to develop a mini DBQ version by reducing the 27-item original DBQ to the shortest possible DBQ version. A second aim was to explore the feasibility of a second-order structure within the data, which means that violations, errors and lapses factors load on a higher-order aberrant driver behavior factor. The presence of a second-order structure further indicates the validity of the DBQ and its theoretical structure. Confirmatory factor analysis (CFA) was used to test the fit (i.e., how well the models explain the data) of the original DBQ versus the fit of the shortest possible DBQ as well as the presence of a second-order structure for the DBQ. The results indicated a nine-item Mini-DBQ In addition, a second-order structure was established in the data. These findings indicate that the Mini-DBQ is a valid and useful short measure of aberrant driver behavior.
ACCIDENT ANALYSIS AND PREVENTION

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Citation Formats
L. M. Martinussen, T. Lajunen, M. Moller, and T. Özkan, “Short and user-friendly: The development and validation of the Mini-DBQ,” ACCIDENT ANALYSIS AND PREVENTION, pp. 1259–1265, 2013, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/39306.