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Table B.1.81a. Difference in average TIMSS science scores of 4th-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.
Czech Republic 529 2.9   544 2.7   15 2.6
Austria 525 2.8   538 3.6   12 2.9
Germany 522 3.0   534 3.2   12 2.5
Chile 474 2.8   486 2.8   12 2.9
Belgium (Flemish)-BEL 503 2.6   514 2.3   11 2.9
Netherlands1 526 2.4   537 2.6   10 2.1
United States2 539 2.3   549 2.1   10 1.5
Spain 500 2.8   510 3.7   10 2.8
Slovak Republic 528 4.3   536 3.6   8 2.7
Kazakhstan2 490 5.1   498 5.5   8 3.0
Korea, Rep. of 583 2.4   590 2.3   8 2.3
Italy 520 3.2   528 3.0   7 2.9
Chinese Taipei-CHN 548 2.6   555 2.4   7 2.3
Malta 443 2.2   449 2.8   6 3.3
Poland 502 3.0   508 2.9   6 2.8
Hong Kong-CHN2 532 3.6   538 4.3   6 2.5
Slovenia 517 2.8   523 3.4   6 3.2
Japan 556 2.7   561 2.1   5 2.8
Portugal 519 4.6   524 3.8   5 3.2
Croatia2 514 2.5   518 2.5   5 2.7
Hungary 532 4.0   537 3.9   5 2.9
Singapore2 581 3.7   585 3.7   4 2.7
Norway3 492 2.5   496 3.2   4 3.1
Sweden 532 3.0   535 3.2   4 3.0
Serbia2 514 3.6   517 3.7   3 3.9
Iran, Islamic Rep. of 452 5.8   454 5.7   2 8.8
Denmark2 527 3.3   529 3.1   2 3.0
Lithuania2,4 514 2.4   515 3.0   1 2.6
New Zealand 496 3.0   497 2.6   1 3.2
Ireland 516 4.0   516 4.6   1 5.5
Australia 516 3.1   516 3.7   #
Romania 505 6.9   506 5.7   #
Finland 570 2.9   570 3.0   #
England-GBR 529 3.3   528 3.3   -1 3.1
Russian Federation 553 3.5   552 3.8   -1 2.4
Northern Ireland-GBR1 517 3.2   516 3.2   -1 3.8
Turkey 465 5.0   461 4.7   -4 3.8
Armenia 419 4.0   414 4.3   -5 3.4
Azerbaijan2,5 442 6.3   434 5.7   -8 4.0
Georgia4,5 459 3.2   451 5.1   -9 3.9
Morocco6 268 5.1   259 4.9   -9 4.4
Thailand 476 5.7   467 6.6   -10 5.0
United Arab Emirates 437 3.4   419 3.8   -18 5.3
Bahrain 461 5.5   438 4.6   -23 7.0
Tunisia7 359 5.6   334 5.6   -25 4.3
Qatar2 408 5.1   382 5.7   -26 6.5
Yemen6 225 7.3   198 8.8   -27 8.0
Oman 394 4.7   360 4.6   -34 3.8
Saudi Arabia 453 4.7   405 9.9   -48 11.0
Kuwait4,7 371 5.5   319 7.1   -53 8.6
Benchmarking education systems                
North Carolina-USA2,4 534 5.1   543 4.9   9 4.0
Florida-USA4,8 540 3.8   549 4.3   9 3.4
Alberta-CAN2 537 2.9   545 2.8   9 2.8
Quebec-CAN 512 3.0   520 3.0   8 2.4
Ontario-CAN 525 3.1   530 3.8   6 3.4
Dubai-UAE 462 3.8   461 4.7   -1 7.3
Abu Dhabi-UAE 427 5.8   396 6.8   -30 8.6
† Not applicable.
# Rounds to zero.
1Met guidelines for sample participation rates only after replacement schools were included.
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 Target Population does not include all of the International Target Population (see appendix A of source publication).
5Exclusion rates for Azerbaijan and Georgia are slightly underestimated as some conflict zones were not covered and no official statistics were available.
6The TIMSS & PIRLS 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 25 percent.
7The TIMSS & PIRLS 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.
8National Defined population covers less than 90 percent, but at least 77 percent of National Target population (see appendix A of source publication).
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-30. National Center for Education Statistics, Institute of Education Sciences, U.S. Department of Education. Washington, DC.
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