Appendix D: Percentiles and Standard Deviations of ...
[Pages:6]Appendix D
Percentiles and Standard Deviations of Mathematics Achievement
SOURCE: IEA's Trends in International Mathematics and Science Study (TIMSS) 2007
454
appendix d: percentiles and standard deviations of mathematics achievement
ExEhxhibibititDD.1.1: PePrceerncetinletisleosfoAfcAhciehvieevmeemnetnint iMnaMthaethmeamtiactsics
Country
Algeria Armenia Australia Austria Chinese Taipei Colombia Czech Republic Denmark El Salvador England Georgia Germany Hong Kong SAR Hungary Iran, Islamic Rep. of Italy Japan Kazakhstan Kuwait Latvia Lithuania Morocco Netherlands New Zealand Norway Qatar Russian Federation Scotland Singapore Slovak Republic Slovenia Sweden Tunisia Ukraine United States Yemen
Benchmarking Participants
Alberta, Canada British Columbia, Canada Dubai, UAE Massachusetts, US Minnesota, US Ontario, Canada Quebec, Canada
5th Percentile
227 (7.9) 355 (6.2) 373 (8.2) 386 (3.1) 457 (4.1) 209 (10.2) 361 (6.6) 403 (9.9) 180 (8.9) 392 (4.2) 289 (6.3) 409 (10.3) 493 (9.1) 347 (12.4) 260 (5.6) 374 (6.1) 438 (2.6) 399 (16.3) 148 (8.7) 416 (2.8) 396 (3.7) 193 (3.9) 429 (7.0) 341 (7.3) 341 (7.0) 149 (1.9) 400 (4.1) 359 (6.5) 447 (6.5) 350 (9.8) 376 (4.0) 388 (4.5) 139 (8.2) 321 (5.0) 401 (3.8) 46 (7.6)
394 (4.6) 384 (9.0) 293 (9.5) 457 (10.0) 418 (15.7) 395 (4.5) 406 (2.8)
10th Percentile
261 (8.0) 385 (5.1) 408 (6.5) 416 (2.9) 488 (2.3) 238 (4.7) 392 (6.9) 431 (4.2) 212 (5.7) 429 (5.2) 322 (5.7) 440 (3.8) 520 (4.0) 389 (8.4) 290 (4.4) 406 (5.6) 471 (3.0) 435 (9.1) 184 (5.3) 444 (2.2) 430 (3.3) 223 (6.3) 454 (4.9) 377 (4.8) 372 (3.3) 179 (1.8) 436 (4.7) 389 (3.9) 487 (7.1) 389 (9.7) 408 (3.0) 417 (4.4) 178 (5.5) 356 (4.6) 430 (4.2) 81 (7.1)
421 (5.1) 414 (4.7) 325 (5.7) 485 (5.4) 452 (17.1) 423 (5.4) 432 (3.6)
25th Percentile
318 (6.7) 439 (4.3) 463 (4.1) 462 (3.6) 532 (2.1) 295 (6.4) 440 (4.9) 478 (3.9) 267 (5.0) 487 (3.5) 378 (6.8) 483 (2.6) 564 (4.2) 452 (6.6) 346 (4.9) 457 (3.7) 520 (2.1) 496 (9.9) 245 (3.4) 490 (3.9) 482 (3.5) 273 (6.4) 495 (2.9) 436 (2.6) 424 (4.6) 233 (1.1) 492 (5.4) 442 (2.9) 548 (5.1) 446 (4.2) 457 (2.5) 459 (3.3) 249 (5.6) 414 (3.3) 479 (2.3) 145 (7.3)
463 (2.4) 460 (3.0) 384 (3.6) 527 (4.0) 504 (6.6) 468 (6.2) 473 (4.1)
50th Percentile
379 (4.1) 498 (3.6) 519 (4.3) 509 (2.3) 578 (2.3) 355 (6.0) 490 (4.0) 525 (3.0) 329 (4.9) 546 (2.4) 442 (4.9) 529 (2.5) 609 (4.1) 516 (3.6) 406 (3.2) 510 (4.4) 571 (2.9) 555 (6.4) 319 (5.7) 540 (3.3) 535 (3.5) 338 (4.5) 537 (2.0) 498 (2.5) 478 (3.4) 297 (1.4) 546 (4.6) 499 (2.7) 606 (3.5) 502 (2.6) 506 (1.4) 505 (2.2) 332 (6.6) 475 (3.3) 531 (2.6) 219 (8.3)
506 (3.1) 507 (2.5) 446 (2.0) 573 (4.1) 559 (6.3) 514 (5.3) 521 (3.4)
75th Percentile
439 (4.4) 559 (5.8) 573 (4.2) 552 (3.0) 623 (2.2) 416 (4.2) 536 (2.9) 571 (2.4) 393 (4.2) 600 (3.6) 501 (5.8) 572 (2.2) 653 (4.0) 574 (3.7) 461 (4.2) 558 (3.3) 620 (2.1) 610 (6.2) 387 (3.1) 587 (2.5) 583 (2.9) 404 (6.4) 577 (2.8) 553 (2.5) 526 (2.8) 360 (0.9) 599 (5.1) 549 (3.1) 659 (4.0) 553 (3.8) 550 (2.3) 548 (3.0) 411 (5.2) 528 (3.1) 581 (3.0) 298 (6.7)
550 (3.1) 553 (1.9) 506 (2.3) 619 (4.1) 609 (5.3) 558 (5.2) 566 (4.5)
90th Percentile
493 (6.2) 617 (8.2) 620 (2.9) 590 (3.7) 663 (2.3) 470 (5.2) 576 (2.8) 611 (3.6) 448 (5.0) 647 (4.9) 549 (4.1) 607 (3.2) 691 (6.0) 620 (2.9) 508 (2.9) 601 (3.8) 663 (3.3) 653 (7.3) 443 (5.5) 628 (3.9) 624 (3.6) 466 (6.3) 612 (2.6) 598 (2.6) 566 (3.0) 413 (1.6) 647 (6.9) 592 (2.7) 702 (4.5) 597 (4.5) 589 (3.1) 586 (3.0) 469 (3.9) 573 (2.6) 625 (3.1) 371 (6.8)
588 (3.4) 595 (4.8) 559 (2.1) 661 (5.3) 649 (4.9) 598 (4.2) 605 (3.1)
95th Percentile
522 (6.2) 650 (5.4) 647 (3.9) 612 (1.5) 686 (2.1) 503 (8.5) 597 (2.9) 634 (4.8) 480 (5.4) 676 (4.3) 582 (6.4) 629 (2.6) 712 (5.3) 647 (4.6) 534 (6.4) 629 (12.2) 688 (3.8) 675 (4.3) 475 (5.5) 650 (2.5) 645 (5.6) 508 (15.1) 632 (2.3) 626 (3.6) 591 (5.6) 444 (3.2) 677 (9.8) 618 (3.6) 725 (4.1) 623 (5.2) 613 (2.8) 608 (2.7) 501 (4.7) 599 (5.1) 650 (5.2) 414 (9.3)
612 (2.2) 620 (3.1) 589 (6.2) 687 (5.9) 675 (6.3) 621 (3.6) 627 (4.5)
( ) Standard errors appear in parentheses. Because results are rounded to the nearest whole number, some totals may appear inconsistent.
Note: Percentiles are defined in terms of percentages of students at or below a point on the scale.
SOURCE: IEA's Trends in International Mathematics and Science Study (TIMSS) 2007
appendix d: percentiles and standard deviations of mathematics achievement
ExEhxhibibititDD.1.1: PePrceerncetinletisleosfoAfcAhciehvieevmeemnetnint iMnaMthaethmeamtiactsic(Cso(Cnotinntuineude) d)
Country
Algeria Armenia Australia Bahrain Bosnia and Herzegovina Botswana Bulgaria Chinese Taipei Colombia Cyprus Czech Republic Egypt El Salvador England Georgia Ghana Hong Kong SAR Hungary Indonesia Iran, Islamic Rep. of Israel Italy Japan Jordan Korea, Rep. of Kuwait Lebanon Lithuania Malaysia Malta Morocco Norway Oman Palestinian Nat'l Auth. Qatar Romania Russian Federation Saudi Arabia Scotland Serbia Singapore Slovenia Sweden Syrian Arab Republic Thailand Tunisia Turkey Ukraine United States
Benchmarking Participants
Basque Country, Spain British Columbia, Canada Dubai, UAE Massachusetts, US Minnesota, US Ontario, Canada Quebec, Canada
5th Percentile
291 (2.9) 351 (5.9) 365 (6.8) 259 (6.5) 322 (5.8) 236 (3.6) 280 (13.1) 403 (7.7) 250 (5.2) 310 (5.3) 382 (4.5) 222 (9.0) 222 (7.7) 366 (12.2) 245 (9.9) 162 (8.9) 394 (18.2) 375 (9.8) 254 (10.7) 266 (5.8) 287 (9.7) 349 (5.1) 424 (4.5) 253 (6.0) 435 (5.1) 221 (5.6) 329 (5.2) 371 (6.1) 342 (9.8) 315 (5.4) 251 (5.2) 356 (4.3) 207 (7.5) 195 (5.4) 152 (3.4) 289 (7.6) 372 (4.5) 202 (5.3) 355 (5.4) 333 (4.9) 422 (9.2) 384 (3.9) 371 (4.7) 259 (6.8) 297 (5.3) 313 (4.1) 263 (6.2) 310 (6.7) 379 (4.8)
379 (7.1) 386 (6.9) 294 (5.1) 404 (10.2) 414 (10.4) 398 (5.0) 418 (6.1)
10th Percentile
311 (3.2) 390 (5.3) 394 (8.3) 289 (5.3) 352 (3.6) 264 (3.6) 324 (9.4) 448 (6.5) 281 (6.7) 347 (2.5) 408 (3.2) 258 (4.4) 248 (2.6) 400 (9.0) 280 (8.4) 192 (5.3) 438 (14.9) 405 (4.3) 286 (8.7) 295 (4.7) 328 (8.3) 381 (5.3) 460 (5.5) 290 (7.2) 475 (3.9) 252 (4.6) 354 (5.8) 402 (5.3) 372 (8.0) 359 (2.9) 278 (5.3) 382 (2.3) 245 (6.5) 233 (6.4) 186 (3.1) 328 (7.5) 402 (6.9) 231 (4.3) 381 (6.5) 368 (3.8) 463 (8.7) 409 (3.3) 399 (4.1) 290 (5.0) 327 (4.7) 336 (2.7) 297 (4.9) 346 (7.0) 408 (3.4)
411 (4.3) 415 (6.4) 328 (4.5) 438 (9.7) 444 (9.9) 427 (6.7) 442 (4.3)
25th Percentile
346 (2.7) 448 (2.4) 443 (3.9) 340 (2.7) 405 (3.1) 312 (2.9) 398 (7.1) 535 (5.8) 329 (4.1) 409 (2.8) 455 (2.5) 321 (6.6) 291 (3.2) 459 (7.9) 343 (8.4) 246 (4.7) 518 (8.2) 459 (6.4) 338 (4.5) 344 (4.9) 400 (6.1) 430 (3.5) 515 (3.6) 356 (9.9) 537 (2.9) 301 (2.1) 397 (3.7) 453 (3.9) 421 (5.4) 431 (2.1) 323 (4.6) 425 (2.8) 309 (5.3) 297 (3.2) 243 (1.6) 395 (5.6) 455 (4.4) 278 (3.7) 432 (3.4) 427 (3.8) 533 (5.5) 454 (1.5) 446 (4.9) 339 (4.0) 378 (5.9) 375 (4.4) 354 (4.3) 404 (3.6) 456 (2.6)
456 (4.5) 462 (2.4) 396 (4.5) 498 (7.2) 488 (3.2) 472 (3.7) 481 (6.0)
50th Percentile
386 (2.5) 501 (2.9) 496 (2.8) 399 (2.2) 460 (3.8) 366 (2.7) 473 (4.6) 614 (5.8) 380 (3.3) 471 (2.5) 504 (5.0) 392 (4.1) 340 (2.6) 518 (4.7) 415 (6.3) 309 (5.0) 585 (5.5) 519 (3.9) 397 (4.2) 401 (4.4) 471 (2.9) 482 (2.9) 573 (3.3) 433 (4.2) 604 (3.3) 355 (2.8) 446 (4.3) 506 (3.8) 474 (5.7) 499 (1.5) 380 (3.7) 472 (2.1) 378 (4.4) 370 (4.6) 307 (1.8) 466 (5.8) 515 (4.5) 329 (3.8) 489 (4.5) 490 (3.9) 601 (5.9) 501 (2.4) 494 (2.7) 394 (3.2) 437 (6.2) 418 (2.6) 424 (5.6) 467 (3.7) 509 (3.2)
503 (2.6) 512 (2.4) 468 (3.5) 554 (4.8) 535 (3.9) 519 (3.4) 527 (3.9)
75th Percentile
427 (2.4) 554 (4.5) 548 (4.7) 457 (2.3) 509 (3.0) 415 (3.8) 536 (4.5) 672 (4.7) 431 (3.7) 528 (2.6) 552 (2.7) 462 (4.1) 389 (2.9) 574 (7.1) 478 (3.1) 372 (6.7) 638 (4.3) 576 (3.8) 456 (3.4) 459 (5.7) 533 (5.5) 532 (3.4) 628 (4.2) 503 (4.6) 662 (2.2) 408 (2.7) 502 (5.0) 561 (3.1) 529 (7.2) 553 (1.7) 438 (4.6) 517 (1.9) 440 (3.0) 439 (4.1) 370 (2.1) 533 (6.4) 569 (5.0) 382 (4.8) 544 (5.1) 548 (2.8) 661 (2.7) 550 (3.0) 539 (1.9) 452 (3.5) 501 (9.3) 466 (3.6) 503 (6.7) 523 (3.9) 563 (2.5)
546 (2.5) 558 (3.6) 528 (4.1) 604 (3.6) 578 (5.5) 565 (4.7) 575 (4.1)
90th Percentile
465 (1.9) 601 (6.3) 600 (7.9) 505 (5.3) 552 (2.6) 460 (3.8) 586 (4.6) 721 (4.6) 477 (3.6) 575 (5.1) 599 (3.6) 521 (4.5) 433 (3.2) 618 (6.8) 532 (10.1) 428 (5.5) 681 (4.3) 624 (5.4) 509 (5.4) 516 (7.6) 584 (7.3) 574 (6.3) 677 (4.0) 556 (3.9) 711 (3.7) 455 (2.6) 549 (3.9) 609 (3.6) 578 (5.9) 597 (1.8) 486 (5.0) 552 (2.3) 492 (2.8) 498 (2.5) 427 (2.3) 587 (4.3) 617 (4.7) 429 (4.5) 590 (4.7) 597 (5.4) 706 (4.3) 594 (3.1) 582 (2.8) 502 (6.2) 562 (11.0) 508 (2.2) 581 (7.7) 572 (4.6) 607 (3.3)
582 (3.6) 600 (4.4) 580 (3.4) 644 (3.8) 617 (7.0) 605 (4.0) 617 (5.7)
455
95th Percentile
485 (3.4) 629 (6.1) 630 (8.8) 533 (3.1) 578 (3.5) 489 (4.6) 617 (7.4) 748 (7.0) 507 (4.3) 603 (2.5) 629 (6.3) 553 (4.8) 462 (5.0) 642 (5.8) 562 (6.9) 461 (7.8) 706 (4.7) 652 (4.2) 541 (6.6) 551 (9.2) 615 (4.7) 600 (5.6) 704 (4.5) 584 (4.6) 738 (4.4) 481 (1.6) 574 (4.7) 635 (3.6) 603 (5.9) 622 (2.7) 511 (4.8) 571 (3.6) 521 (2.5) 530 (4.6) 461 (1.6) 616 (4.3) 644 (4.7) 457 (4.8) 616 (4.6) 624 (4.1) 731 (4.1) 619 (5.9) 604 (2.8) 530 (5.1) 600 (8.9) 532 (5.4) 624 (10.9) 603 (7.2) 633 (5.3)
603 (4.4) 624 (6.0) 611 (4.4) 667 (6.5) 639 (10.3) 629 (6.2) 641 (7.5)
( ) Standard errors appear in parentheses. Because results are rounded to the nearest whole number, some totals may appear inconsistent.
Note: Percentiles are defined in terms of percentages of students at or below a point on the scale.
SOURCE: IEA's Trends in International Mathematics and Science Study (TIMSS) 2007
456
appendix d: percentiles and standard deviations of mathematics achievement
Exhibit D.2 ESxhtaibnidtaDr.d2:DSetvainadtiaorndsDoefvAicahtiioenvesmofeAncthinieMveamtheenmt iantiMcsathematics
Country
Algeria Armenia Australia Austria Chinese Taipei Colombia Czech Republic Denmark El Salvador England Georgia Germany Hong Kong SAR Hungary Iran, Islamic Rep. of Italy Japan Kazakhstan Kuwait Latvia Lithuania Morocco Netherlands New Zealand Norway Qatar Russian Federation Scotland Singapore Slovak Republic Slovenia Sweden Tunisia Ukraine United States Yemen
Benchmarking Participants Alberta, Canada British Columbia, Canada Dubai, UAE Massachusetts, US Minnesota, US Ontario, Canada Quebec, Canada
Overall
Mean
378 (5.2) 500 (4.3) 516 (3.5) 505 (2.0) 576 (1.7) 355 (5.0) 486 (2.8) 523 (2.4) 330 (4.1) 541 (2.9) 438 (4.2) 525 (2.3) 607 (3.6) 510 (3.5) 402 (4.1) 507 (3.1) 568 (2.1) 549 (7.1) 316 (3.6) 537 (2.3) 530 (2.4) 341 (4.7) 535 (2.1) 492 (2.3) 473 (2.5) 296 (1.0) 544 (4.9) 494 (2.2) 599 (3.7) 496 (4.5) 502 (1.8) 503 (2.5) 327 (4.5) 469 (2.9) 529 (2.4) 224 (6.0)
Standard Deviation
90 (2.9) 90 (2.0) 83 (2.0) 68 (1.0) 69 (0.9) 90 (2.6) 71 (1.3) 71 (1.4) 91 (2.1) 86 (1.6) 88 (2.1) 68 (1.2) 67 (1.4) 91 (2.3) 84 (2.2) 77 (1.8) 76 (1.4) 84 (3.7) 99 (2.2) 72 (1.3) 76 (1.8) 95 (2.7) 61 (1.4) 86 (2.0) 76 (1.3) 90 (0.7) 83 (2.4) 79 (1.4) 84 (2.1) 85 (4.0) 71 (1.0) 66 (1.2) 111 (2.3) 84 (1.6) 75 (1.2) 110 (2.7)
505 (3.0) 505 (2.7) 444 (2.1) 572 (3.5) 554 (5.9) 512 (3.1) 519 (3.0)
66 (1.8) 71 (1.5) 90 (2.2) 70 (1.8) 78 (3.6) 68 (1.8) 67 (1.1)
Girls
Mean
380 (5.9) 504 (5.7) 513 (4.2) 498 (2.5) 575 (2.0) 347 (5.2) 483 (3.3) 520 (2.9) 325 (4.6) 541 (3.2) 440 (4.2) 519 (2.5) 605 (3.2) 508 (4.6) 409 (5.2) 499 (3.2) 568 (2.5) 553 (6.7) 333 (4.3) 539 (2.9) 530 (2.8) 339 (5.0) 530 (2.7) 492 (2.4) 470 (3.2) 307 (2.0) 548 (5.5) 490 (2.6) 603 (3.8) 493 (4.6) 499 (2.4) 499 (2.4) 337 (4.7) 469 (3.3) 526 (2.7) 236 (8.0)
Standard Deviation
90 (3.1) 90 (2.6) 79 (2.3) 66 (1.6) 65 (1.3) 86 (2.7) 68 (1.8) 68 (1.9) 89 (2.9) 83 (1.7) 86 (2.5) 68 (1.7) 64 (1.5) 90 (2.8) 79 (2.5) 76 (2.2) 73 (1.4) 82 (4.3) 92 (2.5) 69 (1.9) 73 (1.7) 94 (3.1) 61 (1.5) 82 (2.0) 76 (2.0) 86 (1.4) 81 (3.0) 75 (2.0) 80 (2.2) 85 (5.0) 68 (1.4) 64 (1.4) 108 (2.9) 81 (2.0) 74 (1.5) 108 (3.5)
500 (3.2) 502 (3.1) 452 (4.0) 567 (3.7) 551 (6.1) 509 (3.2) 515 (3.5)
64 (1.8) 70 (1.8) 82 (2.5) 68 (2.5) 75 (2.9) 66 (2.0) 67 (1.7)
Boys
Mean
375 (5.2) 495 (3.7) 519 (3.6) 512 (2.3) 577 (2.0) 364 (5.5) 489 (3.0) 526 (3.2) 334 (5.5) 542 (3.6) 437 (4.9) 531 (2.5) 609 (4.4) 511 (3.8) 396 (5.5) 514 (3.6) 568 (2.7) 545 (7.9) 297 (6.2) 536 (3.0) 530 (3.2) 343 (5.4) 540 (2.4) 493 (3.1) 477 (3.0) 285 (2.1) 540 (4.9) 499 (2.8) 596 (4.1) 499 (4.7) 504 (2.1) 506 (3.1) 319 (5.0) 469 (3.4) 532 (2.7) 214 (6.6)
Standard Deviation
89 (3.2) 89 (2.1) 87 (2.2) 69 (1.1) 73 (1.5) 93 (3.5) 74 (1.7) 73 (2.0) 92 (2.6) 88 (2.1) 90 (2.6) 68 (1.8) 70 (1.9) 93 (2.6) 87 (3.2) 78 (1.8) 79 (2.0) 85 (3.6) 103 (3.0) 74 (2.0) 79 (2.4) 96 (3.2) 61 (1.8) 90 (2.4) 76 (1.6) 93 (1.5) 85 (3.1) 83 (1.6) 88 (2.3) 85 (3.4) 74 (1.4) 68 (1.7) 113 (2.5) 87 (2.2) 77 (1.3) 111 (3.4)
510 (3.2) 508 (3.0) 438 (4.9) 578 (4.2) 557 (6.3) 514 (3.7) 524 (3.3)
68 (2.3) 72 (1.8) 95 (2.9) 71 (2.6) 80 (5.6) 70 (2.4) 67 (1.4)
( ) Standard errors appear in parentheses. Because results are rounded to the nearest whole number, some totals may appear inconsistent.
appendix d: percentiles and standard deviations of mathematics achievement
457
ExEhxhibibititDD.2.2: StaSntadnadrdarDdeDveiavtiiaotniosnosfoAfcAhciehvieevmeemnetnint iMnaMthaethmeamtiactsic(Cso(Cnotinntuineude) d)
SOURCE: IEA's Trends in International Mathematics and Science Study (TIMSS) 2007
Country
Algeria Armenia Australia Bahrain Bosnia and Herzegovina Botswana Bulgaria Chinese Taipei Colombia Cyprus Czech Republic Egypt El Salvador England Georgia Ghana Hong Kong SAR Hungary Indonesia Iran, Islamic Rep. of Israel Italy Japan Jordan Korea, Rep. of Kuwait Lebanon Lithuania Malaysia Malta Morocco Norway Oman Palestinian Nat'l Auth. Qatar Romania Russian Federation Saudi Arabia Scotland Serbia Singapore Slovenia Sweden Syrian Arab Republic Thailand Tunisia Turkey Ukraine United States
Benchmarking Participants Basque Country, Spain British Columbia, Canada Dubai, UAE Massachusetts, US Minnesota, US Ontario, Canada Quebec, Canada
Overall
Mean
387 (2.1) 499 (3.5) 496 (3.9) 398 (1.6) 456 (2.7) 364 (2.3) 464 (5.0) 598 (4.5) 380 (3.6) 465 (1.6) 504 (2.4) 391 (3.6) 340 (2.8) 513 (4.8) 410 (5.9) 309 (4.4) 572 (5.8) 517 (3.5) 397 (3.8) 403 (4.1) 463 (3.9) 480 (3.0) 570 (2.4) 427 (4.1) 597 (2.7) 354 (2.3) 449 (4.0) 506 (2.3) 474 (5.0) 488 (1.2) 381 (3.0) 469 (2.0) 372 (3.4) 367 (3.5) 307 (1.4) 461 (4.1) 512 (4.1) 329 (2.9) 487 (3.7) 486 (3.3) 593 (3.8) 501 (2.1) 491 (2.3) 395 (3.8) 441 (5.0) 420 (2.4) 432 (4.8) 462 (3.6) 508 (2.8)
Standard Deviation
59 (1.0) 85 (2.7) 79 (2.2) 84 (1.5) 78 (1.5) 77 (1.4) 102 (3.5) 106 (2.2) 79 (2.2) 89 (1.1) 74 (1.7) 100 (1.7) 73 (2.1) 84 (3.0) 96 (3.0) 92 (2.7) 94 (3.7) 85 (1.8) 87 (2.3) 86 (2.4) 99 (2.3) 76 (1.8) 85 (1.6) 102 (1.8) 92 (1.2) 79 (1.5) 75 (2.0) 80 (1.6) 79 (2.8) 92 (0.9) 80 (1.6) 66 (0.9) 95 (1.9) 102 (1.9) 93 (0.9) 100 (2.4) 83 (1.7) 76 (1.4) 80 (2.0) 89 (1.9) 93 (2.7) 72 (1.0) 70 (1.3) 82 (1.9) 92 (3.3) 67 (1.2) 109 (2.1) 89 (2.2) 77 (1.4)
499 (3.0) 509 (3.0) 461 (2.4) 547 (4.6) 532 (4.4) 517 (3.5) 528 (3.5)
69 (2.1) 72 (2.2) 96 (1.6) 79 (3.5) 68 (2.7) 70 (2.3) 68 (2.7)
Girls
Mean
384 (2.4) 501 (4.4) 488 (5.5) 414 (2.2) 456 (3.1) 371 (2.4) 471 (4.6) 599 (4.6) 364 (4.2) 476 (2.2) 505 (2.5) 397 (5.0) 331 (3.8) 511 (5.0) 412 (5.9) 297 (5.0) 578 (5.0) 517 (4.1) 399 (4.1) 407 (5.3) 465 (4.6) 477 (3.3) 568 (3.2) 438 (6.4) 595 (3.3) 364 (2.7) 443 (4.1) 509 (3.0) 479 (5.6) 488 (1.5) 377 (3.7) 471 (2.1) 399 (3.6) 385 (4.2) 325 (2.1) 470 (4.2) 514 (4.3) 341 (3.6) 486 (3.8) 489 (3.6) 600 (4.1) 500 (2.7) 493 (2.6) 387 (4.3) 453 (5.3) 410 (2.8) 432 (5.3) 465 (3.9) 507 (3.0)
Standard Deviation
60 (1.1) 85 (3.5) 75 (2.8) 73 (1.6) 77 (1.9) 74 (1.7) 97 (3.6) 98 (2.3) 74 (2.4) 84 (1.8) 73 (2.1) 98 (2.1) 73 (2.6) 82 (3.3) 92 (2.5) 91 (2.9) 87 (3.7) 83 (2.3) 88 (2.8) 83 (3.3) 95 (2.8) 75 (2.3) 85 (2.6) 96 (2.3) 89 (1.4) 71 (1.2) 74 (2.5) 78 (1.6) 77 (3.0) 88 (1.1) 80 (2.4) 63 (1.3) 83 (1.6) 98 (2.6) 85 (1.5) 95 (2.7) 80 (2.0) 71 (1.4) 78 (2.2) 87 (2.5) 88 (3.0) 69 (1.3) 68 (1.6) 80 (2.1) 87 (3.3) 67 (1.4) 107 (2.5) 85 (2.4) 75 (1.5)
496 (3.9) 507 (3.3) 461 (5.2) 544 (4.8) 531 (4.4) 513 (4.1) 527 (3.5)
65 (2.1) 70 (2.3) 90 (2.6) 79 (3.7) 66 (2.9) 67 (2.1) 66 (1.9)
Boys
Mean
389 (2.2) 497 (3.5) 504 (5.4) 382 (2.6) 455 (2.8) 355 (3.2) 456 (6.3) 598 (5.3) 396 (4.1) 455 (2.4) 503 (2.8) 384 (4.6) 351 (3.6) 516 (6.1) 408 (6.7) 319 (4.4) 567 (8.0) 517 (3.7) 395 (4.4) 400 (6.1) 462 (4.9) 483 (3.5) 572 (3.2) 417 (5.6) 599 (3.1) 342 (4.0) 456 (4.7) 502 (2.3) 468 (5.3) 488 (1.7) 385 (3.9) 467 (2.6) 344 (5.0) 349 (5.4) 288 (2.0) 452 (4.6) 509 (4.7) 319 (4.0) 489 (4.4) 483 (4.0) 586 (4.6) 503 (2.6) 490 (2.5) 403 (5.1) 430 (5.5) 431 (2.7) 432 (5.0) 459 (3.9) 510 (3.1)
Standard Deviation
59 (1.2) 85 (2.6) 82 (3.0) 90 (1.9) 79 (1.9) 79 (1.7) 106 (3.9) 112 (3.0) 81 (2.7) 94 (1.5) 74 (1.9) 102 (2.2) 71 (3.0) 85 (3.3) 100 (4.1) 91 (2.9) 99 (4.1) 86 (2.1) 87 (2.5) 89 (3.6) 103 (2.9) 78 (1.9) 86 (1.8) 107 (2.5) 95 (1.8) 85 (2.2) 75 (2.3) 81 (2.0) 81 (2.9) 96 (1.2) 80 (2.4) 68 (1.3) 98 (2.4) 103 (2.5) 98 (1.2) 103 (2.7) 86 (2.0) 80 (2.1) 81 (2.4) 92 (2.2) 97 (3.0) 74 (1.4) 72 (1.7) 84 (2.7) 94 (3.8) 64 (1.7) 110 (2.4) 94 (2.4) 78 (1.4)
501 (3.9) 512 (3.4) 461 (5.9) 550 (5.1) 535 (5.1) 522 (4.0) 529 (4.6)
72 (2.6) 74 (2.5) 101 (3.3) 79 (3.9) 70 (2.9) 73 (3.0) 70 (3.9)
( ) Standard errors appear in parentheses. Because results are rounded to the nearest whole number, some totals may appear inconsistent.
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