Effectiveness of School-Based Psychoeducational Program in Reducing Bullying and Improving Self-Esteem: A Systematic Review

<b>Background/Objectives</b>: Bullying refers to a specific form of mistreatment that occurs in the school setting and is characterized by intentionality and persistence over time. It should be noted that some elements, such as low self-esteem and lack of social skills, are usually present in both victims and aggressors, so interfering in these aspects can lead to a decrease in the incidence. Thereby, being a victim of bullying is a key factor in the development of multiple mental health issues, such as depression or even suicide. Consequently, mental health nurses play a fundamental role in health education in order to be able to act when necessary and to prevent these types of unfavorable circumstances that can lead to psychiatric disorders. This systematic review aimed primarily to evaluate the effectiveness of psychoeducational programs in reducing school bullying and, secondarily, to analyze their influence on children's self-esteem. <b>Methods</b>: Data were obtained through a comprehensive search of PubMed, Cochrane, and Scielo, following PRISMA guidelines. Studies evaluating evidence-based interventions, including the Olweus Bullying Prevention Program (OBPP), the KiVa Anti-Bullying Program (KiVa), Positive Behavioral Support systems, and standardized social-emotional learning programs, were eligible for inclusion. <b>Results</b>: Findings revealed that most interventions showed a positive impact on bullying reduction and self-esteem improvement. However, effectiveness differed depending on contextual factors, such as the educational stage, school climate, cultural setting, and the degree of family involvement, as well as the extent to which each program was adapted to the specific needs of each school environment. <b>Conclusions</b>: Psychoeducational programs demonstrate overall effectiveness in reducing bullying behaviors and enhancing self-esteem in children. Nevertheless, outcomes differ depending on school characteristics, cultural context, and the level of family participation, highlighting the need for interventions tailored to each educational setting.