“…Bullying has become a worldwide social issue that can lead to severe negative mental health problems resulting from bullying victimization (Estévez et al, 2019; Olweus, 1978; Smith & Brain, 2000). As bullying bystanders’ active defending behaviors (e.g., directly stopping the bully, finding teachers for help) can effectively stop bullies or buffer the harm to victims (Jenkins & Nickerson, 2019; Salmivalli et al, 2011), many studies have explored the predictive factors and potential underlying processes of active defending behaviors in response to bullying (Parris et al, 2020; Zhang, Tang, et al, 2021; Zhang, Lan, et al, 2021).…”