This study aimed to investigate efficacy of emotion-focused therapy on impulsivity, social adjustment, and social networking addiction in adolescents who attempted suicide. The present study design was a quasi-experimental pre-test-post-test with a control group. statistical sample of this study was 30 people who were selected through purposive sampling and then randomly assigned to two experimental and control groups (15 people). The measurement tools included Barat's Impulsivity Questionnaire, Sinha and Singh's Social Adjustment Questionnaire, and Mobile-Based Social Networking Addiction Questionnaire. Emotion-focused therapy was implemented by a psychologist for experimental group. In order to analyze the data in this study, multivariate analysis of covariance test was used to examine hypotheses. results showed that after removing effects of pretest, there was a significant difference in the linear combination of dependent variables between the two groups studied (Wilks' Lambda = 0.780, F = 3.23, 90.432, p = 0.001, and eta squared = 0.922). Univariate analysis of covariance tests also showed that adolescents in the experimental group showed significant improvement in posttest scores of impulsivity, social adjustment, and social media addiction compared to adolescents in control group. Therefore, it can be concluded that emotion-focused therapy can be an effective treatment for adolescents who attempt suicide
