the effectiveness of group training of emotional regulation on adolescent’s self-injury, depression, and anger

Background: the prevalence of self-injury behavior and negative emotions in adolescents ishigh. this study aimed to investigate the effect of emotional regulation group training on selfinjurybehavior, depression, and anger in adolescents.methods: the research method is quasi-experimental with a pre-test-post-test design and acontrol group. the study population comprised adolescents aged 13-15 years living in shirazcity, iran, in 2020 with self-injury experience. a total of 30 samples were selected by multistagecluster random sampling method and randomly assigned to the two groups of experimentaland control (each 15 members). a pre-test evaluated members of both groups. then emotionregulation group training was applied online to the experimental group. after that, the participantsin both groups were assessed in the post-test. data collection tools were deliberate self-harminventory, kutcher adolescent depression scale, and state and trait anger expression inventory.descriptive statistics (sd) and inferential statistics (multivariate covariance) were used toanalyze the obtained dataresults: the results of the multivariate covariance test showed that group training of emotionregulation affected self-injury behavior, depression, and anger (p<0.05). data analysis showeda significant difference between the experimental and control groups regarding self-injury,depression, and anger. emotion-regulation group training reduced self-injury behavior and therate of depression and anger in adolescents.conclusion: emotion-regulation group training is one of the new therapies to reduce problems.this study also confirms its effectiveness on emotions and dysfunctional behaviors of adolescents.