Classroom Size and the Prevalence of Bullying and Victimization: Testing Three Explanations for the Negative Association

Classroom size - i.e., the number of students in the class - is a feature of the classroom environment often found to be negatively related to bullying or victimization. This study examines three possible explanations for this negative association: a) it is due to measurement effects and therefore only found for peer-reports (Hypothesis 1), b) bullying perpetrators are more popular and have more friends in smaller classrooms (Hypothesis 2), c)...