„A safe and supportive school environment not only promotes students’ academic achievement, well-being and self-esteem but can also protect them from engaging in deviant and risky behaviours. […] According to PISA 2018, students who attend schools with a high prevalence of bullying are more likely to feel a weaker sense of belonging, a poorer disciplinary climate and less co-operation with their schoolmates than those in schools with a low prevalence of bullying.“
OECD (Hrsg.), Education in the Digital Age (2020), S. 177.