Data analysis was carried out using the SPSS—PC (Chicago, IL) program. Computations of frequen- cies, mean values, standard deviations, and summa- tions were used to describe the characteristics of the groups and the effects of .the program. The chi- square test and t test were used to verify the homogeneity between the'EXperimental and control groups. Paired ttest and analysis of covariance were used to evaluate differences between the Korean Anger Expression Inventory scores before and after the intervention, as well as to compare differences between the groups