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Places to Go: PISA

Sponsored by the by the Organisation for Economic Co-operation and Development (OECD), the Programme for International Student Assessment (PISA) is a set of tests administered every three years to 15-year-olds around the world. These tests measure students' practical ability in basic skills such as reading, mathematics, and science. Nations are ranked on "league tables" summarizing the results. The front page of OECD's PISA Web site states the rationale behind the tests: