The OECD has the Program for International Student Assessment, or PISA.

VOA: special.2009.07.30

Efforts to strengthen math and science education come at a time when 15-year-old U.S.students rank 25th in math literacy and 30th in science literacy -- among the 57 countries participating in the Program for International Student Assessment.

VOA: standard.2010.05.10

Scotland awaits publication in late 2013 of the Program for International Student Assessment (PISA) run by the Organisation for Economic Co-operation and Development.

BBC: A year in Scotland's education