Experimental: Standard Brief Intervention

Immediately following completion of the baseline assessment, participants will be texted a link to a secure website which contains the participant's personalized feedback. Personalized feedback is automatically presented via a programming algorithm that is based on the participants baseline survey responses. The personalized feedback component will include a personalized substance use profile, information on peer norms, prior substance-related consequences experienced by the participant, practical costs (e.g., money spent on substances, fees for a DUI), and standard protective behavioral strategies to limit substance-related risk.

Experimental: Trauma-Informed and Peer-Supported Brief Intervention (TIPS-BI)

In addition to the components of the standard brief intervention, the TIPS-BI will include personalized feedback about participants use of substances to cope. Additionally, participants will be provided with psychoeducation about the link between substance use, trauma, and coping motives, and information highlighting the iatrogenic effects that substance use has on negative emotions. Participants will also be given a series of evidence-based alternative coping strategies for managing trauma-related distress such as anxiety, depression, and PTSD. Participants will be asked to set goals related to utilization of these alternative coping strategies. Participants will then be informed that a trained peer who is part of the research team will follow up with them via text message at the monthly time points to review adherence to their goals and offer support.

Experimental: Assessment only

Following the baseline survey, participants in the assessment only group will be texted again 3 and 6 months later to complete follow up assessments. Following the end of the 6-month follow-up, participants will be offered an opportunity to complete the TIPS-BI without peer coach follow-up.