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This study utilized first- and second-year middle school student data from the Seoul Education Longitudinal Study 2020 (SELS 2020) to examine latent classes, transition patterns, and influencing factors based on responses to 30 items related to school violence experiences and status-related delinquent behaviors. For interpretability and estimation feasibility, two latent classes were identified each year based on experiences of school violence victimization and perpetration in both real-life and cyber contexts, as well as status-related deviance. The study investigated the impact of social relationship variables (peer relationships, perceptions of teachers, and parent-child relationships) and gender on the likelihood of membership in each latent class using Latent Class Analysis (LCA). As more than 80% of participants reported no experiences of school violence or status-related deviance, a Zero-Inflated Poisson-based LCA was conducted. Additionally, Latent Transition Analysis (LTA) was performed to examine transitions between groups over time and to identify factors influencing persistent involvement in school violence and deviant behavior. Results showed that approximately 15% of students in the 'very low school violence/low status-related delinquency' group in the first year transitioned to a high violence victim experience group in the second year. Positive evaluations of teachers and stronger relationships with parents were significant predictors of remaining in the non-violence/low-deviance group, suggesting that supportive adult relationships can reduce the likelihood of school violence and related deviant behaviors.







