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Published online by Cambridge University Press: 12 February 2016
This study examined the effects of different ability compositions on students' behaviours in structured cooperative groups. One hundred and sixty, Year 6 children worked on class-based activities in one of four, gender-balanced, mixed-ability groups (high-medium-low; high-medium; medium-low; high-low). The results showed initially that the children in the three-ability level condition (high-medium-low) exhibited significantly more cooperative and helping behaviours than their peers in the two-ability conditions at the first observation period (Week 3). However, by the completion of the study (Week 6), there were no significant differences in the cooperative and helping behaviours of the children in the two-and three-ability level conditions. It appeared that as the children had more opportunities to work together, they became more responsive to each others' needs and demonstrated more cooperative and helping behaviours. Reasons for these results are discussed.