“…The self-report questionnaires, assessing social and emotional competencies, bullying and cyberbullying behavior and roles, and school climate, were administered at two different time points-T1 in October 2021, at the start of the school year, and T2, 1 year later in October 2022, at the beginning of the following school year. The time lag was defined based on the significant differences in social anxiety and social withdrawal observed in control groups (i.e., adolescents who did not benefit from any intervention) throughout the school year in previous studies (Coelho & Marchante, 2018;Sousa et al, 2023). To minimize this effect on the results, the assessment was performed at the same point in each school year, resulting in a time lag of 1 year.…”