Evaluation of an Interactive Mobile Phone-Based Brief Intervention to Reduce Substance-Impaired Driving

Following the baseline assessment, participants will be sent a link via text message to a secure website containing substance-impaired driving specific personalized feedback. Feedback will include the following elements: a personalized substance use profile and substance-impaired driving profile, information on social norms related to substance use and substance-impaired driving, personalized information on BAC (or level of impairment due to drug use) prior to driving, costs associated with a DUI citation in Kentucky, and information on combined drug and alcohol impaired driving risk (if endorsed).

Following the baseline assessment, participants will be sent a link via text message to a secure website containing substance-impaired driving specific personalized feedback (described above). Participants will be asked to send a text message back to the study administrator after viewing the feedback document. After confirming receipt and processing of the document, the study administrator will then send the participant three text messages containing open-ended questions.

Students randomized to the information condition will receive standard information about alcohol and other drugs and substance-impaired driving via a link to a website delivered through text message.