Background: Real-time ecological momentary interventions have shown promising effects in
domains other than alcohol use; however, only few studies regarding ecological momentary
interventions for alcohol use have been conducted thus far. The increasing popularity of
smartphones offers new avenues for intervention and innovation in data collection.
Objective: We aimed to test the efficacy of an ecological momentary intervention, comprising
mobile Web-based ecological momentary assessments (EMAs) and text messaging (short …