Since 1995, TIMSS has measured the performance of students in mathematics and science by level of school and has relied on the curricula common to the participating countries to evaluate them. This dataset presents the average scores obtained by country or group of countries, discipline and domain.
[follow link](http://www.education.gouv.fr/cid110041/mathematiques-et-sciences-resultats-de-l-etude-timss-2015.html)
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