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- ISIDORE Id: 10670/1.88c664...
- halshs: halshs-02522747
info:eu-repo/semantics/OpenAccess
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Adrien Bouguen et al., « Does class size influence student achievement? », HAL SHS (Sciences de l’Homme et de la Société), ID : 10670/1.88c664...
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This policy brief presents the results of the most methodologically robust studies that estimate the impact of a reduction in class size on the student achievement and longer-run outcomes. Contrary to an idea that persisted for a long time, the effects are high, if they are compared with those of other educational policies conducted on a large scale and assessed rigorously. The absolute cost of such a policy justifies targeting it on the most disadvantaged pupils, but the investment is profitable whenever the salary gain for two years spent in a half-size class is greater than 1%. However many unknown quantities remain, in particular about how reduction in class size links up with teaching practices.
