In 2003, Maury Nation and colleagues established a set of principles for effective prevention programming. The principles determined whether programming is appropriately timed, of sufficient dosage, comprehensive, theory-based, rooted in postive relationships, and comprised of varied teaching methods. They conducted an analysis of hundreds of adolescent prevention programs and found successful programs shared these principles. Use this brief worksheet to assess to what extent your programs align with the principles of effective prevention programs identified by Nation et al. (2003). This worksheet presents these six principles and asks questions to help you determine if you are applying these principles and notes ways in which you can apply these principles to your programming.