Mathematics score comparisons, national average scores, Korea and U.S., TIMSS (8th-graders) and PISA (15-year-olds), 1999/2000–2009

TIMSS 1999 TIMSS “2009” Change (scale points) PISA  2000 PISA  2009 Change (scale points) TIMSS–PISA rough agreement?
National average, Korea 587 605 18 547 546 -1 No
National average, U.S. 502 509 7 493 487 -6 No

Note: TIMSS "2009" scores are calculated as average of TIMSS 2007 and 2011 score for each country.

Source: Trends in International Mathematics and Science Study (TIMSS) as reported in Mullis et al. (2012); OECD Program for International Student Assessment (PISA) (2010a)

View the underlying data on epi.org.