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Table B.1.81b. Difference in average TIMSS science scores of 8th-grade students, by sex and education system: 2011

Education system Female   Male   Male-female difference
Average score s.e.   Average score s.e.   Score difference s.e.
Ghana1 290 5.7   320 5.4   30 4.0
New Zealand 501 4.6   522 5.1   20 3.9
Hungary 513 3.5   531 3.7   18 3.7
Tunisia 431 2.6   447 2.9   17 2.6
Australia 511 4.5   527 6.5   16 5.9
Chile 454 3.2   470 2.9   16 3.6
Italy 493 3.1   508 2.6   15 2.8
United States2 519 2.8   530 2.9   11 2.4
Japan 554 2.9   562 2.9   8 3.3
Russian Federation2 539 3.6   546 3.5   7 2.9
Syrian Arab Republic 424 4.4   429 4.9   6 5.2
Korea, Rep. of 558 2.6   563 2.4   5 3.1
Ukraine 499 3.7   503 4.3   4 4.1
Slovenia 541 3.0   545 3.4   4 3.4
Lebanon 404 5.4   408 6.5   4 6.7
Singapore2 589 4.2   591 5.3   1 4.1
Chinese Taipei-CHN 564 2.7   564 2.8   #
Norway 495 3.2   494 3.0   -1 3.4
Hong Kong-CHN 536 4.5   534 3.7   -2 4.6
Romania 466 3.8   464 4.0   -2 3.4
England-GBR3 534 5.0   532 6.2   -2 5.6
Sweden 511 2.7   508 3.1   -3 3.0
Morocco 378 2.6   374 2.7   -4 3.0
Kazakhstan 492 4.6   488 4.6   -4 3.6
Finland 555 2.4   550 3.1   -5 2.7
Iran, Islamic Rep. of 477 5.3   472 5.3   -5 7.0
Israel4 519 3.7   512 5.2   -7 4.2
Indonesia 409 5.1   402 4.5   -7 3.6
Lithuania5 518 3.0   510 3.1   -8 3.3
Georgia5,6 425 3.3   415 3.5   -10 3.4
Malaysia 434 6.3   419 7.3   -15 5.5
Thailand 458 3.9   443 5.2   -15 4.9
Turkey 491 3.2   475 4.3   -16 3.2
Macedonia, Rep. of 417 5.6   399 6.1   -18 4.7
Armenia 446 3.5   428 3.6   -18 3.4
United Arab Emirates 477 2.9   452 3.3   -25 4.2
Qatar 432 7.0   406 5.4   -26 10.7
Saudi Arabia 450 3.5   424 6.4   -26 7.2
Palestinian Nat'l Auth. 434 3.8   406 5.4   -27 6.8
Jordan 471 4.3   428 6.4   -43 7.6
Bahrain 482 2.2   423 3.6   -59 4.4
Oman 458 2.9   380 4.4   -78 4.9
Benchmarking education systems                
Indiana-USA2,5 526 4.9   541 5.4   15 4.0
Florida-USA2,5 522 8.5   537 7.6   15 6.8
Minnesota-USA5 548 4.9   559 5.3   12 3.8
California-USA2,5 493 5.0   504 5.0   12 4.0
North Carolina-USA4,5 526 5.7   537 7.7   12 4.7
Colorado-USA5 537 4.7   548 5.2   11 4.5
Alabama-USA5 482 6.3   489 6.8   7 4.0
Massachusetts-USA2,5 564 5.8   570 5.1   7 3.6
Alberta-CAN2 542 2.8   549 2.5   6 2.5
Quebec-CAN 518 3.0   522 3.0   4 3.0
Connecticut-USA2,5 530 4.5   533 5.9   3 5.1
Ontario-CAN2 521 2.6   522 3.0   1 2.7
Abu Dhabi-UAE 465 4.5   458 6.0   -6 6.9
Dubai-UAE 500 4.6   472 5.8   -28 9.3
† Not applicable.
# Rounds to zero.
1The TIMSS International Study Center has reservations about the reliability of the average achievement score because the percentage of students with achievement too low for estimation exceeds 15 percent, though it is less than 25 percent.
2National Defined Population covers 90 to 95 percent of National Target Population (see appendix A of source publication).
3Nearly satisfied guidelines for sample participation rates after replacement schools were included.
4National Defined population covers less than 90 percent, but at least 77 percent of National Target Population (see appendix A of source publication).
5National Target Population does not include all of the International Target Population (see appendix A of source publication).
6Exclusion rates for Georgia are slightly underestimated as some conflict zones were not covered and no official statistics were available.
NOTE: Education systems are ordered by male-female difference in average score. Italics indicate participants identified and counted in this report as an education system and not as a separate country. "Education system" is defined on page 1 of source publication. Participants that did not administer TIMSS at the target grade are not shown; see the international report for their results. All U.S. state data are based on public school students only. The Science scale ranges from 0 to 1000. Standard error is noted by s.e.
SOURCE: Provasnik, S., Kastberg, D., Ferraro, D., Lemanski, N., Roey, S., and Jenkins, F. (2012). Highlights From TIMSS 2011: Mathematics and Science Achievement of U.S. Fourth- and Eighth-Grade Students in an International Context (NCES 2013–009), supplemental table E-31. National Center for Education Statistics, Institute of Education Sciences, U.S. Department of Education. Washington, DC.
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