The overall study was a group-randomized multicommunity trial assessing the impact of a comprehensive community approach on preventing teen drinking parties. Twenty-four community coalitions from seven US states were recruited to be randomized to either an intervention or a delayed intervention condition. Over a 3-year period, intervention coalitions received training, technical assistance, and modest funding to catalyze and support efforts to plan and implement strategies related to policy, enforcement, and public education to respond to the problem of teen drinking parties in their communities.
