Social class distribution and average math scores, U.K. and its countries, compared with U.S., PISA 2006–2009 and TIMSS 2007
| U.K. | England | Scotland | U.S. (PISA) | U.S. (TIMSS) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Social class distribution (percent) | Average score | Social class distribution (percent) | Average score | Social class distribution (percent) | Average score | Social class distribution (percent) | Average score | Social class distribution (percent) | Average score | |
| PISA “2007” | PISA “2007” | TIMSS 2007 | TIMSS 2007 | TIMSS 2007 | TIMSS 2007 | PISA “2007” | PISA “2007” | TIMSS 2007 | TIMSS 2007 | |
| Group 1 (Lowest) | 13 | 437 | 15 | 452 | 22 | 439 | 17 | 423 | 17 | 461 |
| Group 2 | 15 | 453 | 21 | 485 | 24 | 469 | 16 | 445 | 20 | 482 |
| Group 3 | 30 | 490 | 28 | 521 | 25 | 499 | 28 | 479 | 28 | 515 |
| Group 4 | 18 | 514 | 18 | 536 | 14 | 527 | 18 | 504 | 17 | 538 |
| Group 5/6 (Higher/highest) | 24 | 548 | 18 | 568 | 15 | 540 | 20 | 535 | 18 | 546 |
Note: PISA "2007" is a weighted average of PISA 2006 and PISA 2009 data, where PISA 2006 has twice the weight of PISA 2009.
Source: Authors' analysis of Trends in International Mathematics and Science Study (TIMSS) 2007 database (Boston College International Study Center) and OECD Program for International Student Assessment (PISA) 2006 and 2009 databases