Objective: <span class="fontstyle2">The present study aimed to examine whether the treatment of Internet Gaming Disorder (IGD) in adolescents via Attentional Bias Modification (ABM) improves their health-related quality of life. Method: <span class="fontstyle2">34 adolescents with IGD who were 12-17 years old were randomly assigned to experimental (n = 16) and control (n = 18) groups. The experimental group received ABM, while no interventions were delivered to the control group. Attentional bias, IGD severity, and health-related quality of life were assessed using Modified Stroop Task, Internet Gaming Disorder-20 (IGD-20), and KIDSCREEN-52 questionnaires, respectively. Data from pre-test, posttest, and two months follow-up measurements were analyzed using two-way mixed measures ANOVA and Fisher’s least significant difference (LSD) via SPSS software. Results: <span class="fontstyle2">ABM successfully reduced attentional bias and IGD severity and improved health-related quality of life in adolescents of the experimental group (p < 0.05). These significant changes were observed at post-test and two months follow-up. Meanwhile, no significant change occurred in the control group (p > 0.05). Conclusion: <span class="fontstyle2">It could be concluded that ABM not only reduces the severity of IGD in adolescents, but also improves their health-related quality of life, although further research is required for the understanding of its mechanisms of effects.
