TIRF is pleased to announce the publication of the article, On-road and Simulated Driving: Concurrent and Discriminant Validation, in the Volume 42, Number 4 of the Journal of Safety Research.
The article is based upon results from two studies that are components of the Large Scale Evaluation of Beginner Driver Education Programs project (LSEDE). The article examines a converging pair of studies that investigate the validity of a driving simulator for measuring driving performance and skill.
The first study, a concurrent validity study, compared novice driver performance during an on-road driving test with their performance on a comparable simulated driving test. The goal of the study was to evaluate whether similar errors made by novice drivers while driving on-road would be replicated using the driving simulator. The results showed a reasonable degree of concordance in terms of the distribution of driving errors on-road and errors on the simulator.
The second study, a discriminant validity study, compared driving performance on the simulator across three groups of drivers who differ in their level of experience – a group of true beginners, a group of novice drivers and a group of fully licensed experienced drivers. The goal of the study was to discern if a driving simulator is a valid means of evaluating a driver’s skill across experience levels. It was found that beginners performed worse than novice drivers and that experienced drivers had the fewest errors on the driving simulator.
Overall, the results show that the converging pair of studies supports the use of a simulator as a valid measure of driving performance for research purposes.
The LSEDE project is sponsored by the AAA Foundation for Traffic Safety (AAAFTS), Manitoba Public Insurance (MPI), the National Highway Traffic Safety Administration (NHTSA), and the Centers for Disease Control and Prevention (CDC).
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