The Effects of Classroom Composition and Size on Bullying and Victimization of Italian and Immigrant High School Students

Fabio Alivernini, Elisa Cavicchiolo, Laura Girelli, Ines Di Leo, Sara Manganelli, Fabio Lucidi

Abstract


Bullying is one of the most serious problems faced by young people at school. Due
to its well-documented negative impact on their well-being and learning, its
monitoring and prevention is now a highly relevant issue. The present study uses
multilevel modelling to investigate the effects of the class characteristics (the number
of students, the proportion of male students and immigrant students, the overall
socio-economic level and the initial achievement level) on bullying and/or
victimization, also controlling for high school typology. The analyses are based on the
national sample of students in grade ten (N=25,573). The results show that the class
characteristics have a relevant impact and that the most important factors appear to
be the proportion of males in the class and the average level of initial achievement of
the class. The proportion of immigrant students appears to be not much relevant,
whereas the size of the class is important for victimization. Finally, the socioeconomic
level of the class does not appear to be significant. In conclusion, the
present study showed that in order to explain bullying and victimization, it is
important to take into account the effect of the characteristics of the class attended
by students, in addition to the role of their individual and personal characteristics.


Keywords


bullying; victimization; classroom composition; classroom size; multilevel analysis.

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