- 4 years
PISA is the OECD's Programme for International Student Assessment. Every three years it tests 15-year-old students from all over the world in reading, mathematics and science....
Several years ago, the OECD started to compile data based on population censuses of OECD countries for the 2000 census round. Since then, another round was added to the first...
The mission of the Organisation for Economic Co-operation and Development (OECD) is to promote policies that will improve the economic and social well-being of people around the...