While many studies show positive effects of cooperative learning on pupil achievement, a recent study examined the effects of cooperative learning on reducing bullying in middle school.
A total of 15 rural schools (n=1,460 seventh graders) in the Pacific Northwest were matched based on size and free-lunch percentage, and then seventh graders (Year 8) were randomly assigned to either receive a cooperative learning programme (n=792) or to continue business as usual (n=668). The cooperative learning programme used techniques by Johnson & Johnson, incorporating peer tutoring, collaborative reading, and methods where classmates rely on each other to learn new information while being held individually accountable for what they have learned. The theory behind this study was that in cooperative groups, bullies would not be reinforced by their peers to continue bullying, and socially isolated pupils would have opportunities to interact with others more and make new friends. All participating teachers received a copy of Cooperation in the Classroom and received three training days in person, and check-ins by video conference during the course of the 2016–17 school year. Pre-tests and post-tests (online surveys completed by pupils) evaluated pupils’ bullying and victimisation, stress levels, emotional problems, relatedness and engagement.
After five-and-a-half months of the cooperative learning programme, results showed significant reductions in bullying (effect size = +0.37), victimisation (+0.69), and stress levels (>+0.99) for pupils who had been shown to be marginalised at pre-test, and reduced emotional problems (+0.30) and greater relatedness (+0.43) for all pupils, regardless of their feelings of victimisation/isolation at pre-test.
Source: Cooperative learning in middle school: A means to improve peer relations and reduce victimization, bullying, and related outcomes (November 2018), Journal of Educational Psychology, 110(8)