Domestic Violence Calls: Single Subject Design For this study, a single subject design was used to assess effects of two successive interventions on the number of calls regarding fear of abuse in a single female client. The ABC design was used, with A representing the base-line behavior phase, A representing the first intervention phase, and B representing the second intervention phase. The baseline phone-calling behavior was measured: the number of calls regarding fear of abuse, per week, were recorded for four weeks. Since the client refused any type of intervention until this point, ethical considerations of not beginning any i