Smartphone-based Intervention for Young Adults With ADHD

The primary goal of this clinical trial is to test if a smartphone-based intervention is feasible \& acceptable among young adults with ADHD who also engage in risky drinking behaviors. A secondary aim is to test preliminary intervention efficacy. The main questions it aims to answer are: Is the smartphone intervention feasible \& acceptable for participants (e.g., are they responding regularly, is there a low level of burden reported)? Does the smartphone intervention improve symptom awareness, inhibitory control, and problematic alcohol use? Participants will: Attend a virtual baseline visit to assess ADHD, alcohol use, and other life experiences. Complete either the TIPS smartphone intervention or a control smartphone protocol over the course of 31-days, starting the first Friday after the baseline visit. Attend a virtual follow-up visit, where many of the same questions from the baseline visit will be asked again.