Small class sizes for improving student achievement in primary and secondary schools
Authors: Trine Filges, Christoffer Scavenius Sonne-Schmidt, Bjørn Christian Viinholt Nielsen
Reducing class size is seen as a way of improving student performance. But larger class sizes help control education budgets. The evidence suggests at best a small effect on reading achievement. There is a negative, but statistically insignificant, effect on mathematics, so it cannot be ruled out that some children may be adversely affected.