“…Although we included role-play, a strategy validated to increase self-efficacy in previous studies [ 10 ], as communication training to refuse to drink, and attempted to motivate participants to change their behaviors by encouraging communication, these were not effective in improving drinking refusal self-efficacy and alcohol abstinence intention. This may be because most prior studies targeted primary prevention to alleviate the individual and social risk factors of drinking and strengthen the protective factors to delay alcohol initiation among in-school adolescents who had not yet begun drinking or had only engaged in moderate drinking [ 10 , 11 ]. However, the participants of this study had already progressed to severe drinking and thus needed therapeutic interventions, as opposed to preventive interventions, with more intensive contents and time.…”