"I Can't Overcome It": Exploring the Relationship Between Bullying Victimization and NSSI Among College Students Through the Lens of Emotion-Driven Mechanism.

With its susceptibility in victimized populations and the potential for suicidality, non-suicidal self-injury (NSSI) is among the most severe health concerns in college students, indicating an urgency to explore its antecedents and interventions. The present study aims to examine the relationship between bullying victimization and NSSI and the mediating roles of internal shame, external shame, depressive symptoms, and PTSD symptoms based on the general strain theory, the vulnerability-stress theory, and the transactional stress theory. By adopting a three-time-point design with 6-month intervals, hypotheses were tested using data from 634 Chinese college students (374 female; Mage = 18.97). Through a structural equation modeling approach, the study found that bullying victimization was positively correlated with NSSI via internal shame and depressive symptoms. However, this study found no evidence for the mediating association of either external shame or PTSD symptoms in the examined relationship. Through a lens of emotion-driven mechanism, this study contributes to understanding the roles of internal shame and depressive symptoms in NSSI intervention strategies among victims of bullying. The results also illuminate the differentiation of the mechanisms of internal and external shame and the discrepancy between depressive symptoms and PTSD symptoms as two types of post-traumatic symptomatology.