Prior research has indicated that an individual adolescent’s behaviour is influenced by the behaviour of his or her classmates. But while most studies have focused on negative peer influence, a study published in Journal of Adolescence investigates whether individual anti-social behaviours in adolescents can potentially be reduced by promoting pro-social behaviour at the classroom level.
In order to determine whether classmates’ pro-social behaviour is related to lower anti-social behaviour of pupils, Verena Hofmann and Christoph Michael Müller conducted a longitudinal study among lower secondary school pupils in Switzerland (mean age = 13.8 years). The sample included 55 classrooms in eight schools, and the researchers analysed data collected at the end of Grade 7, Grade 8, and Grade 9 (Years 7–10). Participants completed self-reported assessments on pro-social behaviour, anti-social behaviour, and anti-social attitudes. Classmates’ pro- and anti-social behaviour for each pupil was calculated by averaging all pupils’ scores in a class, excluding the pupils’ own score.
While children generally developed more anti-social behaviour over time, particularly those who had higher initial levels of anti-social behaviour, results indicated that more pro-social behaviour among classmates predicted lower levels of individual anti-social behaviour and anti-social attitudes in the future.
Source: Avoiding antisocial behavior among adolescents: The positive influence of classmates’ prosocial behavior (October 2018), Journal of Adolescence, volume 68