The effects of alcohol, expectancy, and sensation seeking on driving risk taking.

Using a cover story of the effects of alcohol on perceptual and motor abilities, two levels of alcohol consumed (moderate and none), two levels of alcohol expectancy (moderate and none), and two levels of sensation seeking (high and low) were combined to determine their effect on risk taking in a driving simulator. Ninety-six subjects were randomly assigned to eight conditions. Dependent variables were lane changes-cars passed and time at maximum speed. Results on lane-changes-cars passed indicated greater risk-taking in driving by high sensation seekers. Interaction of alcohol expectancy and sensation seeking indicated high sensation seekers took more risks when they believed they had consumed alcohol. Low sensation seekers became more cautious in driving when they believed they had consumed alcohol. Alcohol consumed did not produce a significant main effect or interaction.

RCT Entities:   Population Interventions Outcomes