A two-factor ANOVA was conducted to examine the effects of different types of prevention programs (Lecture and Role-play) and the school setting (In-class and After-school) for building effective communication skills in 8th grade students. Figure 2. Illustrates the time scores for the prevention program. The main effect of the school program setting was not significant, F (1, 16) = .834, p = .38, partial eta squared = .050. We therefore fail to reject the null hypothesis