Quality of intervention delivery: Teacher reports for I446 lessons indicated that they covered all or some of each activity in 88% of the 7th-grade lessons and 93% of the 8th- grade lessons. However, l or more activities were rushed in 40% of the7th-Grade lessons and 31% of the 8th grade lessons. Overall just 9% of the lessons were interrupted by external events such as fire drills, school announcements or shortened class periods Statistical quality Was a power computation performed No Was an intention-ro-treat analysis performed? Yes Was a correction for clustering made? Yes Were appropriate statistical methods used? Generalized estimating equation to account for ICCs, with adjustment for multiple covariates, including school geographic location and community size missing data imputed using Bayesian model