Annika B. Bergbauer, Eric Hanushek, Ludger Woessmann, 18 September 2018

School systems increasingly use student assessments for accountability purposes. By combining accountability reforms with international student achievement data over the past 15 years, this column shows that the expansion of standardised testing with external comparisons has improved student achievement in maths, science, and reading, while internal testing or teacher inspectorates without external comparisons have not. 

Romina Boarini, Joaquim Oliveira Martins, 24 September 2008

OECD governments spend a lot on education, but are their investments paying off? This column analyses how public policy affects individuals’ decisions to invest in education and identifies opportunities for reform.

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