„In the latest edition of the Programme for International Student Assessment (PISA), in 2018, an average of 23 % of students reported being bullied at least a few times a month, most often boys and low-achieving students vis-à-vis girls and high-achievers. […] Students who are bullied experience more negative schooling experiences and report higher levels of negative feelings, such as sadness. Bullying is also associated with poorer academic performance, although negative relations with peers could be both a cause and consequence of low performance.“
OECD (Hrsg.), Crime & punishment (2020), S. 2.