Methods: Analyses were based on waves 1-5 of the Korea Youth Panel Survey(KYPS), a nationally representative data of second-year middle school students(N=3,449).We estimated discrete-time hazard model with logistic regression to identify the relationship between experience of victimization (e.g., threatened, collectively bullied, beaten, sexually assaulted, robbed) and the timing of first bullying activity (e.g., first experience of threatening, collective bullying, beating, sexual assault, robbing). Individual (gender, aggression) and family (family structure, household income, parental education, attachment, abuse, monitoring) variables were included as controls in the analytic models.
Results: Experience of victimization, as well as individual and family factors predicted the timing of youth’s bullying behavior. Victimization predicted early onset of youth violence (b=0.018, p=0.004). For individual variables, being male (b=0.439, p<0.001)and having higher levels of aggression (b=1.011, p<0.001)was associated with early onset of bullying. As for family variables, parental monitoring (b=-0.213, p=0.007) significantly delayed the onset of bullying, whereas abusive parenting behavior (b=0.223, p<0.001) led to earlier involvement in youth bullying. However, parental attachment and family structure were not statistically significant predictors of youth’s first bullying behavior.
Conclusions and Implications: This study used event history analysis to identify whether the experience of victimization predicted the onset of youth's first bullying behavior. Consistent with Akers' framework of social learning theory, we identified a significant relationship between victimization and the onset of first bullying behavior among Korean youth. As youth interact with perpetrating youth or abusive parents ("differential association"), they may develop a positive attitude toward violence ("definition"). Furthermore, youth would engage in bullying from learning violence from others' behaviors ("modeling") and as an avoidant strategy against further victimization ("discriminative reinforcement"). Findings from this study proposed that the robust link between experience of victimization and perpetrating behavior must be recognized and adopted in interventions to stop the vicious cycle of violence among youth. Furthermore, policies against youth bullying should be considered through a multidimensional approach that involves family members, particularly parents. For example, greater levels of parental understanding of youth's whereabouts may protect youth from being exposed to violent situations. Consideration of parental maltreatment was found to be strongly linked to earlier onset of youth's bullying behavior, thus may provide implications for the importance of parental education among bully-victim youth.