Overall average scale scores, mathematics, for U.S. and six comparison countries, PISA 2009 (with standardization for U.S. social class distribution)
| Top scoring | Similar post-industrial | U.S. | U.S. versus: | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Canada | Finland | Korea | Average* | France | Germany | U.K. | Average* | Top-scoring average | Similar post-industrial average | ||
| National average math score (from Table 1) | 527 | 541 | 546 | 538 | 497 | 513 | 492 | 501 | 487 | -50 | -13 |
| National average math score, standardized for U.S. social class distribution | 517 | 529 | 524 | 524 | 492 | 502 | 487 | 494 | 488 | -35 | -5 |
| Difference between social class standardized math scores and actual average reading scores | -10 | -12 | -22 | -14 | -5 | -11 | -5 | -7 | +1 | ||
* Simple (unweighted) average of three countries
Source: Authors' analysis of OECD Program for International Student Assessment (PISA) 2009 database for each country