Changes in 8th grade TIMSS mathematics scores, U.S. and selected states and countries, 1999–2011

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
United States
U.S. 1999 439 461 495 523 537 502 490
2011 465 485 516 542 548 509* 510*
Difference 26 24 21 20 10 8 21
Connecticut 1999 436 461 507 519 544 512 493
2011 446 475 521 550 565 518 511
Difference 10 14 14 31 21 6 17
Massachusetts 1999 445 476 508 518 543 513 498
2011 503 522 563 575 598 561 552
Difference 58 45 55 57 55 48 54
Indiana 1999 438 483 504 521 531 515 496
2011 479 500 526 544 558 522 521
Difference 42 17 21 23 27 7 25
North Carolina 1999 439 463 486 517 525 495 485
2011 484 518 539 560 585 537 537
Difference 46 55 54 43 60 42 52
Comparison countries
Finland 1999 483 492 521 527 538 520 512
2011 465 493 514 530 535 514 507
Difference -18 1 -7 2 -2 -6 -5
Korea 1999 527 550 581 605 625 587 577
2011 546 556 594 627 653 613 593
Difference 19 6 13 22 29 26 16
England 1999 438 456 488 505 537 496 484
2011 442 481 518 540 556 507 507
Difference 5 25 30 35 19 10 24

* Slight discrepancy is an artifact of rounding.

Source: EPI analysis of TIMSS International Database

View the underlying data on epi.org.