The research was conducted as part of a training organized by the Association of High School Students in Bosnia and Herzegovina (ASuBIH) and proMENTE social research, which aimed to teach students the basics of research through the topic "Youth participation in decision making in Bosnia and Herzegovina." 25 high school students participated in the training. A total of 7 training modules were conducted, of which 6 one-day meetings were held online and one four-day live meeting. Between each meeting, the participants had assignments related to research work that they conducted under the supervision of the training organizers. Through interactive work, discussions, lectures and accompanying materials, participants had the opportunity to develop critical thinking and acquire knowledge about the basics of scientific research. Great emphasis was placed on participation, and participants had the opportunity to give their ideas for changes to the research design. The general goal of the research conducted within the training was to examine the participation of high school students in Bosnia and Herzegovina in decision-making processes in their local communities. The main findings of the research are: High school students in Bosnia and Herzegovina exhibit certain behaviors that indicate socio-political engagement and participation in decision-making processes. These behaviors are expressed to a very small extent. If we focus on the two most common behaviors, we see that one of them is a rather passive and marginal form of participation through signing petitions, while the other behavior is a very proactive form of participation through volunteering in NGOs. organizations. High school students show somewhat rigid patterns of thinking that lead to authoritarian, anti-democratic political attitudes, which are then negatively associated with attitudes about participation in decision-making processes.