Senior Law and Policy Analyst Clark Lee Publishes on Drowsy Driving

Lee_ClarkSenior Law and Policy Analyst Clark Lee, JD, MPH, CPH has published his first scientific research article as lead author, to appear in the August 2016 2016 issue of Accident Analysis & Prevention. The article, “Intention and willingness to drive drowsy among university students: An application of an extended theory of planned behavior model,” which can be viewed here, is summarized as follows:

A web-based questionnaire was used to assess the utility of constructs from the Theory of Planned Behavior (TPB) and the Prototype Willingness Model (PWM) to predict intentions and willingness to engage in drowsy driving in a sample of 450 university students. Those students who reported more favorable attitudes and subjective norm and greater perceived control and willingness in relation to drowsy driving behavior were more likely to report stronger intentions to engage in drowsy driving behavior. Augmenting the TPB constructs with the PWM construct of willingness significantly explained up to an additional 8 percent of the variance in drowsy driving intention. Perceived behavioral control and willingness were consistently the strongest predictors of drowsy driving intention in the augmented model, which together with the control (personal) variables explained up to 70 percent of the variance in intention. Thus, the Theory of Planned Behavior and the Prototype Willingness Model may be useful for understanding motivational influences on drowsy driving behavior in young people and present promising theoretical frameworks for designing more effective interventions against drowsy driving in this population.

Congratulations Clark on this impressive accomplishment.

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