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Methodology and Technical Notes

This section describes features of the Program for International Student Assessment (PISA) 2015 methodology, including sample design, test design, and scoring, with a particular focus on the U.S. implementation. For further details about the assessment and any of the topics discussed here, see the Organization for Economic Cooperation and Development's (OECD) PISA 2015 Technical Report (forthcoming).

International and U.S. Response Rates