The Programme for International Student Assessment -LRB- ORGANIZATION@1 -RRB- is a triennial world-wide test of 15-year-old school children 's scholastic performance , the implementation of which is coordinated by the ORGANIZATION@2 -LRB- ORGANIZATION@3 -RRB- .

The Programme for International Student Assessment is a test done by the ORGANIZATION@2 -LRB- ORGANIZATION@3 -RRB- .
