The Effect of Adolescents’ Ego-Identity on Problematic Short Video Use in an Online Learning Environment: The Role of Psychological Resilience and Academic Procrastination

This study, using a sample of 481 adolescents, aims to explore the relationship between ego-identity and problematic short video use in an online learning environment. The findings reveal that: (1) academic procrastination plays a significant mediating role in the relationship between ego-identity and problematic short video use; (2) both psychological resilience and academic procrastination function as a chain mediation between ego-identity and problematic short video use; and (3) there is a significant nonlinear relationship between psychological resilience and problematic short video use. This research provides a novel perspective for understanding the relationship between adolescents’ mental health and problematic behaviors. The results offer important insights for informing mental health education practices and designing effective intervention strategies.