|Table T1. Average scores and changes in average scores of U.S. 15-year-old students on the PISA science, mathematics, and reading literacy scales: 2000, 2003, 2006, 2009, 2012, and 2015|
|Average score||s.e.||Average score||s.e.||Average score||s.e.||Average score||s.e.||Average score||s.e.||Average score||s.e.||2015–
| Average score in 2015 is not measurably different than in comparison year at the .05 level of statistical significance.
Average score in 2015 is lower than in comparison year at the .05 level of statistical significance.
— Not available. PISA 2006 reading literacy results are not reported for the United States because of an error in printing the test booklets making comparisons not possible.
† Not applicable. Although science was assessed in 2000 and 2003, because the science framework was revised for 2006, it is possible to look at changes in science only from 2006 forward. Similarly, although mathematics was assessed in 2000, because the mathematics framework was revised for PISA 2003, it is possible to look at changes in mathematics only from 2003 forward.
NOTE: All average scores reported as higher or lower than the comparison year are different at the .05 level of statistical significance. Standard error is noted by s.e. This table corresponds to table 4 in Performance of U.S. 15-Year-Old Students in Science, Mathematics, and Reading Literacy in an International Context (NCES 2017-048).
SOURCE: Organization for Economic Cooperation and Development (OECD), Program for International Student Assessment (PISA), 2000, 2003, 2006, 2009, 2012, and 2015.