Changes in 8th grade TIMSS mathematics scores, U.S., Minnesota, Korea, and England, 1995–2011

Family academic resource (FAR) group
Group 1 (lowest) Group 2 Group 3 Group 4 Group 5/6 (higher/highest) Average Average with 2011 U.S. FAR weights
U.S. 1995 412 435 474 499 513 492 466
2011 465 485 516 542 548 509* 510*
Difference 53 50 42 43 35 17 45
Minnesota 1995 444 464 499 515 534 518 491
2011 494 506 543 568 574 545 536
Difference 49 42 44 53 39 27 45
Korea 1995 505 523 562 592 609 581 557
2011 546 556 594 627 653 613 593
Difference 41 33 32 35 45 32 36
England 1995 398 435 474 498 521 498 465
2011 442 481 518 540 556 507 507
Difference 44 46 45 42 35 9 43

* Slight discrepancy is an artifact of rounding.

Source: EPI analysis of TIMSS International Database

View the underlying data on epi.org.