“…According to Olweus (1991), the behavior has to be intentional; a power imbalance between the bullies and victims must exist; and the incident has to be repeated over long periods of time. Bullying can be divided into direct and indirect bullying—the former involves tangible contact made directly by the bully to the victim (e.g., pushing, kicking, name-calling), whereas the latter refers to less direct behaviors (e.g., spreading rumors, social exclusion) (J. Choi & Kruis, 2019; Farrington & Ttofi, 2009; Greeff & Grobler, 2008).…”