Mostafa Dehghani

Objective: The present study aimed at determining the effectiveness of emotionally-focused couple therapy, based on attachment injury resolution model (AIRM) on increasing trust among the injured women with marital infidelity. Method: The present study was a single case experiment of the multiple baseline design type. The population included all injured women with marital infidelity, referring to Bushehr family therapy clinics, among whom three women were selected and participated in the intervention through purposive sampling method, based on the desired recall, By considering the inclusion and exclusion criteria and answering the trust scale. Data analysis was conducted by visual analysis, clinically meaningful (reliable change index and normative comparison) and percentage improvement formula. Results: The percentage obtained from the overall increase of trust among the injured women during the therapy was 38.76 and follow-up was 48.58. In addition, the reliable change index during the therapy and a follow-up was 2.77 and 3.49 in the first couple, 3.10 and 3.62 in the second couple, 2.66 and 3.67 in the third couple indicating that these values were significant and higher than z ¼ 1.96 during the therapy and follow-up (p = 0.05). Conclusion: Based on the research results, the emotionally focused couple therapy based on attachment injury resolution model can be used as an effective intervention in reducing the injuries by marital infidelity.