"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 world.
The OECD provides a forum in which governments can work together to share experiences and seek solutions to common problems. We work with governments to understand what drives economic, social and environmental change. We measure productivity and global flows of trade and investment. We analyse and compare data to predict future trends. We set international standards on a wide range of things, from agriculture and tax to the safety of chemicals.

We also look at issues that directly affect everyone’s daily life, like how much people pay in taxes and social security, and how much leisure time they can take. We compare how different countries’ school systems are readying their young people for modern life, and how different countries’ pension systems will look after their citizens in old age.

Drawing on facts and real-life experience, we recommend policies designed to improve the quality of people's lives. We work with business, through the Business and Industry Advisory Committee to the OECD, and with labour, through the Trade Union Advisory Committee. We have active contacts as well with other civil society organisations. The common thread of our work is a shared commitment to market economies backed by democratic institutions and focused on the well being of all citizens. Along the way, we also set out to make life harder for the terrorists, tax dodgers, crooked businessmen and others whose actions undermine a fair and open society."

We had a very interesting presentation from Italian and Japanese OECD staff members about the PISA test results and TALIS

About PISA

The Programme for International Student Assessment (PISA) is a triennial international survey which aims to evaluate education systems worldwide by testing the skills and knowledge of 15-year-old students. To date, students representing more than 70 economies have participated in the assessment.
The most recently published results are from the assessment in 2012.
Around 510,000 students in 65 economies took part in the PISA 2012 assessment of reading, mathematics and science representing about 28 million 15-year-olds globally. Of those economies, 44 took part in an assessment of creative problem solving and 18 in an assessment of financial literacy.
Consult all PISA 2012 results here.
More than 70 economies have signed up to take part in the assessment in 2015 which will focus on science.

You can try the test at http://www.oecd.org/pisa/test/