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Schools where the incidence of bullying is high by international standards score 47 points lower in science

„Schools where the incidence of bullying is high by international standards (more than 10 % of students are frequently bullied) score 47 points lower in science, on average, than schools where bullying is less frequent (schools where less than 5 % of students are frequently bullied). This difference in performance between the two types of schools remains substantial (around 25 score points) even after accounting for differences in schools’ socio-economic profile.“

OECD (Hrsg.), „PISA In Focus 74“ (Juli 2017), S. 3