B1--B12

TIMSS-R Ref. No. 98-0030/1---5-78/B2 A B C B-1

TIMSS-R Ref. No. 98-0030/1---5-78/B2 B-2

TIMSS-R Ref. No. 98-0030/1---5-78/B2 7 C 2.5 9 C 13 C 10 C 2.0 1.5 14 C 19 C 21 C 16 C 1.0 24 C X 0.5 29 C 0 X A B-3

B-4 TIMSS-R Ref. No. 98-0030/1---5-78/B2 500 450 400 350 300 250 200 150 100 50 0

TIMSS-R Ref. No. 98-0030/1---5-78/B2 A. B. C. D. B-5

TIMSS-R Ref. No. 98-0030/1---5-78/B2 B-6

B01. 考題領域 :Science (Earth Science) 考題內容 :Layers of Earth 正確答案 :C S012007 國家台灣香港日本韓國新加坡選項 (N=2872) (N=2577) (N=2369) (N=3055) (N=2490) 國際平均 A 10.8% 6.2% 7.8% 9.8% 10.3% 9.9% B 3.3% 4.6% 2.0% 4.7% 4.1% 4.4% C* 84.0% 87.6% 89.0% 85.0% 83.7% 82.2% D 1.9% 1.2% 1.1% 0.4% 1.6% 2.7% B02. 考題領域 :Science (Physics) 考題內容 :Energy released from car engine 正確答案 :B S012008 國家台灣香港日本韓國新加坡選項 (N=2873) (N=2577) (N=2369) (N=3055) (N=2490) 國際平均 A 42.1% 38.0% 28.9% 15.4% 28.3% 23.6% B* 52.3% 48.7% 64.4% 74.5% 60.4% 57.5% C 2.2% 5.9% 4.3% 3.5% 5.2% 5.8% D 3.3% 6.7% 2.3% 6.2% 5.6% 11.2%

B03. 考題領域 :Science (Physics) 考題內容 :Greatest density from mass / volume table 正確答案 :C S012009 國家台灣香港日本韓國新加坡選項 (N=2873) (N=2577) (N=2369) (N=3056) (N=2490) 國際平均 A 30.7% 32.1% 37.8% 37.0% 42.5% 55.5% B 8.3% 10.7% 10.8% 8.7% 7.9% 8.0% C* 52.5% 49.5% 41.8% 46.8% 43.6% 28.3% D 8.3% 7.2% 9.4% 7.2% 5.4% 5.8% B04. 考題領域 :Science (Life Science) 考題內容 :Pulse / breathing rate after exercise 正確答案 :C S012010 國家台灣香港日本韓國新加坡選項 (N=2873) (N=2577) (N=2369) (N=3056) (N=2490) 國際平均 A 0.9% 0.9% 0.3% 1.5% 0.6% 2.6% B 2.6% 3.0% 1.3% 2.4% 1.5% 4.2% C* 94.2% 92.7% 97.5% 94.6% 95.7% 87.3% D 0.9% 1.6% 0.6% 0.9% 1.6% 3.2%

B05. 考題領域 :Science (Earth Science) 考題內容 :Elevation diagram of wind / temperature 正確答案 :A S012011 國家台灣香港日本韓國新加坡選項 (N=2873) (N=2577) (N=2369) (N=3056) (N=2490) 國際平均 A* 44.0% 32.1% 53.6% 55.2% 30.5% 47.1% B 33.7% 10.7% 15.9% 11.2% 16.2% 12.6% C 1.2% 49.5% 0.9% 2.7% 8.3% 5.1% D 7.0% 7.2% 14.2% 8.0% 17.1% 13.4% E 14.0% 17.5% 15.2% 22.8% 27.1% 19.9% B06. 考題領域 :Science (Physics) 考題內容 :Color reflecting most light 正確答案 :A S012012 國家台灣香港日本韓國新加坡選項 (N=2873) (N=2577) (N=2369) (N=3056) (N=2490) 國際平均 A* 88.6% 85.4% 87.2% 78.2% 90.6% 82.4% B 3.5% 2.7% 2.3% 7.4% 2.4% 5.5% C 6.6% 10.1% 8.3% 13.7% 4.9% 8.3% D 1.2% 1.6% 2.1% 0.8% 1.8% 3.0%

B07. 考題領域 :Mathematics (Data Representation, Analysis and Probability) 考題內容 :Graph showing greatest increase 正確答案 :D M012007 國家台灣香港日本韓國新加坡選項 (N=2873) (N=2577) (N=2369) (N=3056) (N=2490) 國際平均 A 6.5% 3.8% 1.9% 4.8% 5.1% 16.7% B 3.6% 8.3% 3.7% 1.6% 4.6% 5.5% C 10.2% 4.8% 2.7% 3.8% 4.6% 15.7% D* 79.5% 82.9% 91.7% 89.8% 85.4% 60.4% B08. 考題領域 :Mathematics (Fractions and Number Sense) 考題內容 :Calories in portion of food from ratio 正確答案 :A M012008 國家台灣香港日本韓國新加坡選項 (N=2873) (N=2577) (N=2369) (N=3056) (N=2490) 國際平均 A* 84.3% 84.4% 63.2% 85.7% 90.5% 69.5% B 6.3% 10.1% 20.6% 8.0% 5.7% 15.6% C 5.1% 3.5% 10.7% 4.2% 1.9% 6.1% D 1.5% 1.0% 2.5% 1.4% 1.0% 3.1%

B09. 考題領域 :Mathematics (Fractions and Number Sense) 考題內容 :Figure showing equivalent fractions 正確答案 :A M012009 國家台灣香港日本韓國新加坡選項 (N=2873) (N=2577) (N=2369) (N=3056) (N=2490) 國際平均 A* 80.2% 82.4% 80.9% 81.4% 83.4% 58.2% B 3.9% 3.2% 6.4% 4.7% 4.7% 10.8% C 5.8% 3.6% 6.6% 5.5% 2.8% 11.8% D 7.4% 9.1% 5.1% 7.9% 8.4% 11.9% B10. 考題領域 :Mathematics (Fractions and Number Sense) 考題內容 :Smallest decimal fraction 正確答案 :E M012010 國家台灣香港日本韓國新加坡選項 (N=2873) (N=2577) (N=2369) (N=3056) (N=2490) 國際平均 A 20.8% 13.0% 23.2% 13.1% 9.3% 24.0% B 1.4% 1.1% 0.3% 1.0% 1.3% 3.7% C 1.2% 0.5% 0.3% 0.4% 0.3% 1.5% D 7.1% 2.1% 2.8% 3.1% 2.6% 24.2% E* 69.5% 82.6% 73.2% 82.2% 86.4% 45.6%

B11. 考題領域 :Mathematics (Geometry) 考題內容 :Cube from folded 2-dimensional net 正確答案 :C M012011 國家台灣香港日本韓國新加坡選項 (N=2873) (N=2577) (N=2369) (N=3056) (N=2490) 國際平均 A 5.2% 4.1% 2.3% 3.9% 4.0% 13.5% B 9.8% 8.6% 7.5% 8.8% 10.1% 19.9% C* 82.9% 84.4% 88.9% 84.7% 83.0% 58.9% D 1.8% 2.6% 1.2% 2.4% 2.3% 5.5% B12. 考題領域 :Mathematics (Algebra) 考題內容 :Equation representing relationship 正確答案 :A M012012 國家台灣香港日本韓國新加坡選項 (N=2873) (N=2577) (N=2369) (N=3056) (N=2490) 國際平均 A* 83.5% 93.5% 86.0% 84.6% 88.5% 65.4% B 1.8% 1.5% 1.5% 1.4% 1.0% 3.5% C 4.7% 2.0% 4.7% 6.5% 3.2% 13.1% D 9.9% 2.6% 7.5% 7.5% 7.0% 16.0%

THIRD INTERNATIONAL MATHEMATICS AND SCIENCE STUDY - 1999 ASSESSMENT 23:49 Monday, December 11, 2000 7 Percent of responses by Item Category - 8th Grade Science: Earth Science Label: Layers of Earth ( S012007 - B01 ) Item Type = MC Key = C OTHER INCOR NOT 1.GIRL 2.BOY COUNTRY N A B C D RECT DIFF INVALID REACHED OMIT % Right % Right Australia 2022 7.3 2.0 89.6 0.9 0.3 89.6 0.1 0.0 0.2 85.8 93.6 Belgium (Flemish) 2620 8.0 2.2 89.0 0.6 0.2 89.0 0.1 0.0 0.1 88.1 89.9 Bulgaria 1644 3.6 1.1 94.0 0.5 0.7 94.0 0.1 0.1 0.5 93.4 94.7 Canada 4356 3.0 2.1 94.2 0.7 0.0 94.2 0.0 0.0 0.0 91.7 96.6 Chile 2931 13.6 4.0 74.2 5.5 2.8 74.2 0.0 0.3 2.5 69.1 79.2 Chinese Taipei 2872 10.8 3.3 84.0 1.9 0.1 84.0 0.0 0.0 0.1 79.0 88.9 Cyprus 1557 15.1 5.2 76.7 2.4 0.7 76.7 0.1 0.0 0.6 73.0 80.2 Czech Republic 1704 5.8 1.4 90.7 1.4 0.7 90.7 0.1 0.0 0.6 86.6 94.8 England 1467 4.3 1.0 93.0 0.6 1.1 93.0 0.0 0.0 1.1 91.0 95.0 Finland 1456 3.7 1.6 93.2 0.9 0.7 93.2 0.0 0.0 0.7 90.6 95.8 Hong Kong, SAR 2577 6.2 4.6 87.6 1.2 0.4 87.6 0.0 0.0 0.4 83.9 91.1 Hungary 1588 4.1 2.0 91.7 1.4 0.8 91.7 0.1 0.1 0.6 90.0 93.3 Indonesia 2928 24.1 6.3 64.0 4.4 1.2 64.0 0.0 0.0 1.1 62.8 65.3 Iran, Islamic Rep. 2651 13.2 7.1 72.4 4.9 2.5 72.4 0.0 0.0 2.5 70.5 73.8 Israel 2103 11.7 4.4 79.7 2.7 1.5 79.7 0.0 0.2 1.3 77.2 82.3 Italy 1670 4.8 2.6 91.4 0.8 0.3 91.4 0.0 0.1 0.3 90.0 93.0 Japan 2369 7.8 2.0 89.0 1.1 0.2 89.0 0.1 0.0 0.1 85.0 93.0 Jordan 2523 9.0 5.5 78.7 5.8 1.0 78.7 0.4 0.0 0.6 77.8 79.5 Korea, Rep. of 3055 9.8 4.7 85.0 0.4 0.1 85.0 0.0 0.0 0.1 79.8 90.0 Latvia (LSS) 1428 9.3 5.9 83.3 1.1 0.4 83.3 0.0 0.0 0.4 82.0 84.6 Lithuania 1176 10.1 4.2 83.4 1.9 0.4 83.4 0.0 0.0 0.4 80.3 86.4 Macedonia, Rep. of 2012 13.1 4.6 77.2 2.6 2.5 77.2 0.1 0.2 2.3 78.1 76.4 Malaysia 2781 14.2 5.4 78.3 1.6 0.4 78.3 0.0 0.0 0.4 74.5 83.0 Moldova 1867 11.9 4.8 79.0 3.5 0.8 79.0 0.1 0.2 0.6 78.8 79.3 Morocco 2671 23.5 11.3 54.3 8.2 2.7 54.3 0.1 0.2 2.3 53.4 54.9 Netherlands 1477 4.6 1.5 93.4 0.3 0.3 93.4 0.1 0.0 0.2 90.2 96.9 New Zealand 1784 6.6 2.3 89.2 1.6 0.3 89.2 0.1 0.0 0.1 84.7 93.5 Philippines 3310 15.2 8.3 66.6 9.3 0.6 66.6 0.1 0.0 0.5 67.6 65.4 Romania 1709 18.0 8.2 70.0 3.1 0.7 70.0 0.1 0.0 0.6 67.1 72.9 Russian Federation 2162 3.4 4.9 90.0 1.1 0.5 90.0 0.2 0.0 0.3 89.1 91.1 Singapore 2490 10.3 4.1 83.7 1.6 0.3 83.7 0.0 0.0 0.3 79.1 88.0 Slovak Republic 1758 2.6 0.9 95.3 0.7 0.5 95.3 0.0 0.0 0.5 95.1 95.6 Slovenia 1546 2.9 1.2 95.6 0.3 0.1 95.6 0.0 0.0 0.1 94.3 97.0 South Africa 4036 15.0 8.9 61.4 12.7 2.1 61.4 0.8 0.3 1.0 59.8 63.3 Thailand 2869 15.6 9.6 71.9 2.7 0.2 71.9 0.0 0.0 0.2 69.6 74.6 Tunisia 2518 19.0 7.3 66.5 4.1 3.1 66.5 0.9 0.1 2.1 63.4 69.6 Turkey 3920 9.9 6.5 75.2 7.9 0.6 75.2 0.0 0.0 0.6 73.4 76.5 United States 4444 4.1 2.4 92.0 1.2 0.4 92.0 0.0 0.0 0.3 89.7 94.1 International Avg.. 9.9 4.4 82.2 2.7 0.8 82.2 0.1 0.1 0.7 79.9 84.6 DIFF = Item Difficulty Other Incorrect = Sum of invalid, not reached and omitted Because of missing gender information, some totals may appear inconsistent

THIRD INTERNATIONAL MATHEMATICS AND SCIENCE STUDY - 1999 ASSESSMENT 23:49 Monday, December 11, 2000 8 Percent of responses by Item Category - 8th Grade Science: Physics Label: Energy released from car engine ( S012008 - B02 ) Item Type = MC Key = B OTHER INCOR NOT 1.GIRL 2.BOY COUNTRY N A B C D RECT DIFF INVALID REACHED OMIT % Right % Right Australia 2022 26.2 58.8 8.5 6.3 0.2 58.8 0.1 0.0 0.1 54.9 62.9 Belgium (Flemish) 2620 33.8 49.2 8.3 8.0 0.7 49.2 0.2 0.0 0.5 49.2 49.2 Bulgaria 1644 13.5 71.4 3.3 8.9 2.8 71.4 1.1 0.1 1.7 71.8 71.0 Canada 4356 26.9 62.8 6.7 3.4 0.2 62.8 0.0 0.0 0.2 60.7 64.9 Chile 2931 36.1 33.8 13.4 11.8 4.9 33.8 0.0 0.5 4.4 35.3 32.3 Chinese Taipei 2873 42.1 52.3 2.2 3.3 0.1 52.3 0.0 0.0 0.1 51.7 52.8 Cyprus 1559 20.1 62.6 2.9 13.1 1.3 62.6 0.0 0.0 1.3 66.6 58.7 Czech Republic 1704 20.4 65.9 2.9 8.2 2.6 65.9 0.1 0.0 2.5 60.0 72.0 England 1467 21.3 67.2 3.3 6.9 1.3 67.2 0.3 0.9 0.1 66.3 68.1 Finland 1456 15.5 66.1 4.8 12.8 0.8 66.1 0.0 0.0 0.8 63.9 68.4 Hong Kong, SAR 2577 38.0 48.7 5.9 6.7 0.8 48.7 0.0 0.0 0.8 49.8 47.8 Hungary 1588 13.8 76.1 0.6 7.5 2.0 76.1 0.3 0.1 1.5 74.4 77.6 Indonesia 2929 23.3 41.8 4.0 30.3 0.7 41.8 0.0 0.0 0.7 43.7 39.7 Iran, Islamic Rep. 2651 24.7 54.3 8.1 10.3 2.6 54.3 0.0 0.1 2.5 54.7 54.0 Israel 2103 21.5 65.4 5.4 4.0 3.6 65.4 0.0 0.3 3.3 66.5 64.3 Italy 1670 37.1 53.0 5.4 2.5 2.1 53.0 0.0 0.1 2.0 52.4 53.7 Japan 2369 28.9 64.4 4.3 2.3 0.1 64.4 0.0 0.0 0.0 65.9 62.9 Jordan 2523 29.6 55.9 3.5 9.2 1.8 55.9 0.1 0.0 1.7 59.9 52.5 Korea, Rep. of 3055 15.4 74.5 3.5 6.2 0.3 74.5 0.0 0.0 0.3 75.5 73.5 Latvia (LSS) 1428 13.6 58.6 8.1 16.8 2.8 58.6 0.4 0.0 2.4 61.2 56.0 Lithuania 1176 23.4 52.4 4.7 16.4 3.1 52.4 0.0 0.0 3.1 49.8 55.1 Macedonia, Rep. of 2012 13.8 48.4 4.0 27.9 5.8 48.4 0.2 0.2 5.4 50.4 46.5 Malaysia 2781 24.6 50.1 6.4 17.8 1.1 50.1 0.0 0.0 1.1 50.8 49.2 Moldova 1869 16.3 62.0 3.9 15.4 2.4 62.0 0.7 0.2 1.6 63.7 60.1 Morocco 2670 23.9 39.9 9.4 23.8 3.1 39.9 0.4 0.3 2.3 41.2 39.0 Netherlands 1477 24.6 62.7 5.5 6.8 0.3 62.7 0.0 0.0 0.3 58.4 67.5 New Zealand 1784 22.0 57.9 11.7 7.9 0.4 57.9 0.1 0.0 0.3 56.3 59.5 Philippines 3310 28.8 50.9 8.4 11.0 0.9 50.9 0.0 0.0 0.9 54.0 47.2 Romania 1712 24.6 58.9 5.4 9.6 1.5 58.9 0.4 0.1 1.1 59.9 57.8 Russian Federation 2162 11.9 71.8 3.3 10.8 2.1 71.8 0.2 0.0 1.9 73.5 70.1 Singapore 2490 28.3 60.4 5.2 5.6 0.5 60.4 0.0 0.0 0.5 64.2 56.8 Slovak Republic 1758 22.1 60.7 1.6 14.2 1.4 60.7 0.1 0.0 1.3 59.4 62.0 Slovenia 1546 16.4 67.3 7.2 7.5 1.6 67.3 0.2 0.0 1.4 65.5 69.4 South Africa 3358 27.0 39.7 11.5 18.6 3.1 39.7 0.7 0.4 2.0 39.3 40.3 Thailand 2870 27.0 55.7 6.7 10.2 0.4 55.7 0.0 0.0 0.4 58.8 52.0 Tunisia 2516 15.3 45.7 5.0 27.3 6.8 45.7 3.8 0.2 2.7 44.7 46.8 Turkey 3920 16.4 59.7 7.2 15.2 1.4 59.7 0.0 0.0 1.4 61.6 58.3 United States 4444 30.3 58.8 8.4 2.0 0.5 58.8 0.0 0.0 0.4 55.4 62.2 International Avg.. 23.6 57.5 5.8 11.2 1.8 57.5 0.2 0.1 1.4 57.7 57.4 DIFF = Item Difficulty Other Incorrect = Sum of invalid, not reached and omitted Because of missing gender information, some totals may appear inconsistent

THIRD INTERNATIONAL MATHEMATICS AND SCIENCE STUDY - 1999 ASSESSMENT 23:49 Monday, December 11, 2000 9 Percent of responses by Item Category - 8th Grade Science: Physics Label: Greatest density from mass/volume table ( S012009 - B03 ) Item Type = MC Key = C OTHER INCOR NOT 1.GIRL 2.BOY COUNTRY N A B C D RECT DIFF INVALID REACHED OMIT % Right % Right Australia 2022 60.0 9.4 24.9 5.2 0.5 24.9 0.1 0.0 0.4 19.0 31.2 Belgium (Flemish) 2620 37.5 8.5 45.6 6.8 1.6 45.6 0.2 0.0 1.5 45.0 46.2 Bulgaria 1643 49.2 7.2 34.7 3.7 5.1 34.7 0.2 0.1 4.9 30.2 39.6 Canada 4356 54.5 8.0 31.5 5.3 0.7 31.5 0.0 0.0 0.6 27.6 35.5 Chile 2931 72.7 5.6 10.6 5.1 5.9 10.6 0.0 0.5 5.4 9.7 11.4 Chinese Taipei 2873 30.7 8.3 52.5 8.3 0.2 52.5 0.0 0.0 0.2 50.7 54.3 Cyprus 1550 63.1 9.4 20.8 4.7 2.0 20.8 0.0 0.0 2.0 17.6 24.0 Czech Republic 1704 56.6 6.5 29.4 4.4 3.1 29.4 0.2 0.3 2.6 24.2 34.8 England 1467 69.0 6.3 18.5 4.4 1.9 18.5 0.0 0.9 1.0 12.4 24.6 Finland 1456 32.6 10.4 46.4 9.6 1.0 46.4 0.0 0.0 1.0 41.2 51.7 Hong Kong, SAR 2577 32.1 10.7 49.5 7.2 0.5 49.5 0.0 0.0 0.4 44.7 54.2 Hungary 1588 46.5 7.2 36.0 6.3 4.0 36.0 0.2 0.1 3.7 32.3 39.7 Indonesia 2929 82.4 4.5 8.1 3.7 1.3 8.1 0.0 0.0 1.2 6.4 9.9 Iran, Islamic Rep. 2651 56.5 12.6 17.3 7.3 6.3 17.3 0.0 0.1 6.2 14.1 19.4 Israel 2103 35.9 10.2 44.5 6.3 3.1 44.5 0.0 0.3 2.8 40.7 48.6 Italy 1670 61.6 7.3 22.6 5.3 3.2 22.6 0.0 0.1 3.2 18.2 27.4 Japan 2369 37.8 10.8 41.8 9.4 0.3 41.8 0.0 0.0 0.3 35.1 48.5 Jordan 2526 65.8 8.0 17.7 6.2 2.3 17.7 0.3 0.0 2.0 16.0 19.2 Korea, Rep. of 3056 37.0 8.7 46.8 7.2 0.2 46.8 0.0 0.0 0.2 44.7 48.8 Latvia (LSS) 1427 52.2 7.6 30.1 6.5 3.6 30.1 0.4 0.0 3.2 27.1 33.2 Lithuania 1176 54.2 4.5 29.9 8.2 3.2 29.9 0.0 0.0 3.2 29.8 29.9 Macedonia, Rep. of 2013 55.6 8.3 24.1 5.6 6.5 24.1 0.1 0.3 6.1 22.8 25.3 Malaysia 2781 53.6 7.0 31.4 6.6 1.4 31.4 0.0 0.0 1.4 31.3 31.6 Moldova 1869 65.8 5.0 23.2 3.6 2.5 23.2 0.1 0.2 2.1 22.2 24.4 Morocco 2671 77.9 7.3 6.7 4.3 3.8 6.7 0.5 0.3 3.0 6.4 6.9 Netherlands 1477 43.5 10.9 38.1 6.8 0.7 38.1 0.1 0.0 0.6 31.5 45.5 New Zealand 1785 70.4 7.7 16.6 4.9 0.5 16.6 0.0 0.0 0.5 14.8 18.4 Philippines 3310 70.2 7.0 18.7 3.8 0.3 18.7 0.0 0.0 0.2 18.2 19.3 Romania 1711 62.7 6.2 24.8 3.8 2.5 24.8 0.3 0.1 2.1 26.9 22.5 Russian Federation 2161 49.2 5.7 35.3 5.5 4.3 35.3 0.3 0.1 3.9 30.3 40.8 Singapore 2490 42.5 7.9 43.6 5.4 0.6 43.6 0.0 0.0 0.5 40.3 46.6 Slovak Republic 1758 55.2 6.0 32.2 4.4 2.1 32.2 0.0 0.0 2.1 28.6 35.9 Slovenia 1546 53.1 7.5 31.9 5.4 2.2 31.9 0.3 0.0 1.8 27.1 37.0 South Africa 4037 57.5 14.5 17.2 9.0 1.8 17.2 0.4 0.5 0.9 17.8 16.6 Thailand 2870 67.5 6.3 20.3 5.5 0.5 20.3 0.0 0.0 0.5 20.2 20.4 Tunisia 2520 74.8 7.3 10.3 3.2 4.5 10.3 1.3 0.2 3.0 9.2 11.3 Turkey 3920 62.0 7.2 20.8 7.3 2.6 20.8 0.0 0.0 2.5 19.4 21.9 United States 4444 61.5 10.4 22.6 5.0 0.5 22.6 0.0 0.0 0.5 18.1 27.1 International Avg.. 55.5 8.0 28.3 5.8 2.3 28.3 0.1 0.1 2.0 25.6 31.1 DIFF = Item Difficulty Other Incorrect = Sum of invalid, not reached and omitted Because of missing gender information, some totals may appear inconsistent

THIRD INTERNATIONAL MATHEMATICS AND SCIENCE STUDY - 1999 ASSESSMENT 23:49 Monday, December 11, 2000 10 Percent of responses by Item Category - 8th Grade Science: Life Science Label: Pulse/breathing rate after exercise ( S012010 - B04 ) Item Type = MC Key = C OTHER INCOR NOT 1.GIRL 2.BOY COUNTRY N A B C D E RECT DIFF INVALID REACHED OMIT % Right % Right Australia 2022 1.2 1.8 93.8 1.9 0.7 0.7 93.8 0.0 0.0 0.7 95.4 92.2 Belgium (Flemish) 2620 0.4 1.0 95.2 2.4 0.8 0.1 95.2 0.0 0.0 0.1 96.9 93.6 Bulgaria 1643 2.1 1.9 91.6 2.5 0.6 1.3 91.6 0.2 0.1 1.1 92.6 90.5 Canada 4356 0.8 2.1 94.3 2.0 0.6 0.2 94.3 0.0 0.0 0.2 94.9 93.7 Chile 2931 3.6 4.6 83.5 3.7 2.8 1.8 83.5 0.0 0.6 1.2 84.3 82.6 Chinese Taipei 2873 0.9 2.6 94.2 0.9 1.5 0.0 94.2 0.0 0.0 0.0 94.2 94.1 Cyprus 1558 2.6 4.0 88.5 2.9 1.5 0.5 88.5 0.0 0.0 0.5 89.5 87.5 Czech Republic 1704 0.6 2.9 94.0 1.2 0.7 0.7 94.0 0.0 0.3 0.4 93.6 94.3 England 1467 0.2 1.0 95.2 2.0 0.3 1.3 95.2 0.1 0.9 0.2 94.0 96.3 Finland 1456 0.7 3.1 94.1 1.5 0.1 0.5 94.1 0.0 0.0 0.5 96.1 92.0 Hong Kong, SAR 2577 0.9 3.0 92.7 1.6 1.5 0.3 92.7 0.0 0.0 0.3 93.4 92.0 Hungary 1588 0.2 0.8 97.3 0.4 0.2 1.1 97.3 0.0 0.2 0.8 97.5 97.2 Indonesia 2929 3.5 6.4 83.3 3.3 2.9 0.6 83.3 0.0 0.1 0.5 82.6 83.9 Iran, Islamic Rep. 2651 3.1 6.5 78.5 5.4 4.4 2.0 78.5 0.0 0.1 1.9 78.9 78.3 Israel 2103 2.4 5.1 86.4 3.0 1.7 1.3 86.4 0.0 0.3 1.0 86.0 87.0 Italy 1670 2.8 3.2 89.2 2.8 1.6 0.5 89.2 0.0 0.1 0.4 90.0 88.2 Japan 2369 0.3 1.3 97.5 0.6 0.3 0.0 97.5 0.0 0.0 0.0 98.4 96.7 Jordan 2526 3.7 8.0 82.5 4.0 0.0 1.7 82.5 0.3 0.0 1.4 86.2 79.2 Korea, Rep. of 3056 1.5 2.4 94.6 0.9 0.4 0.1 94.6 0.0 0.0 0.1 93.7 95.6 Latvia (LSS) 1427 0.9 3.9 91.5 2.5 0.6 0.7 91.5 0.1 0.0 0.5 92.2 90.8 Lithuania 1176 0.7 2.1 94.6 1.6 0.5 0.5 94.6 0.0 0.0 0.5 94.0 95.1 Macedonia, Rep. of 2013 3.1 4.0 85.5 2.9 1.6 3.0 85.5 0.1 0.3 2.6 87.4 83.8 Malaysia 2781 1.9 4.3 89.2 3.3 0.9 0.3 89.2 0.0 0.0 0.3 90.1 88.3 Moldova 1867 3.5 5.8 84.5 2.8 2.0 1.4 84.5 0.0 0.3 1.1 84.6 84.4 Morocco 2672 8.8 13.2 58.2 10.4 6.0 3.5 58.2 0.4 0.4 2.6 59.7 57.2 Netherlands 1477 0.6 0.7 95.3 2.4 0.6 0.3 95.3 0.0 0.0 0.3 97.3 93.1 New Zealand 1785 1.2 4.0 90.3 3.2 1.0 0.4 90.3 0.1 0.0 0.2 92.4 88.3 Philippines 3310 10.4 16.4 58.5 9.7 4.7 0.4 58.5 0.0 0.0 0.4 60.9 55.9 Romania 1709 4.5 3.6 84.1 3.3 3.0 1.4 84.1 0.3 0.1 1.0 85.6 82.6 Russian Federation 2162 2.3 4.0 89.2 3.0 0.7 0.8 89.2 0.0 0.1 0.7 88.5 89.9 Singapore 2490 0.6 1.5 95.7 1.6 0.3 0.3 95.7 0.0 0.0 0.3 96.1 95.2 Slovak Republic 1758 2.0 2.1 92.2 2.8 0.7 0.3 92.2 0.0 0.0 0.3 91.8 92.7 Slovenia 1546 0.8 2.3 94.9 1.1 0.5 0.5 94.9 0.1 0.0 0.4 95.1 94.6 South Africa 4037 14.9 15.6 36.0 14.5 17.0 1.9 36.0 0.3 0.5 1.1 34.6 37.7 Thailand 2870 2.0 6.3 87.0 1.8 2.5 0.4 87.0 0.0 0.0 0.3 87.9 85.9 Tunisia 2521 0.8 2.5 92.3 1.6 0.8 1.9 92.3 1.1 0.3 0.6 91.1 93.6 Turkey 3920 6.3 3.8 79.2 6.2 3.8 0.8 79.2 0.0 0.0 0.8 79.6 78.9 United States 4444 1.7 2.4 91.2 3.0 1.1 0.5 91.2 0.0 0.1 0.4 92.4 90.0 International Avg.. 2.6 4.2 87.3 3.2 1.9 0.9 87.3 0.1 0.1 0.7 87.9 86.7 DIFF = Item Difficulty Other Incorrect = Sum of invalid, not reached and omitted Because of missing gender information, some totals may appear inconsistent

THIRD INTERNATIONAL MATHEMATICS AND SCIENCE STUDY - 1999 ASSESSMENT 23:49 Monday, December 11, 2000 11 Percent of responses by Item Category - 8th Grade Science: Earth Science Label: Elevation diagram of wind/temperature ( S012011 - B05 ) Item Type = MC Key = A OTHER INCOR NOT 1.GIRL 2.BOY COUNTRY N A B C D E RECT DIFF INVALID REACHED OMIT % Right % Right Australia 2022 49.5 9.3 3.7 15.1 21.9 0.5 49.5 0.1 0.0 0.4 47.6 51.4 Belgium (Flemish) 2620 49.6 18.7 4.0 15.3 11.9 0.5 49.6 0.2 0.0 0.4 51.3 47.8 Bulgaria 1643 55.4 8.1 2.3 6.3 24.1 3.7 55.4 1.2 0.1 2.5 53.0 58.0 Canada 4356 57.4 7.4 3.6 15.2 15.9 0.4 57.4 0.0 0.0 0.4 56.5 58.4 Chile 2931 40.9 10.1 7.8 18.3 18.4 4.6 40.9 0.0 0.6 4.0 41.7 40.0 Chinese Taipei 2873 44.0 33.7 1.2 7.0 14.0 0.1 44.0 0.0 0.0 0.1 42.4 45.6 Cyprus 1551 43.1 6.7 7.1 13.9 27.6 1.7 43.1 0.1 0.0 1.6 41.6 44.5 Czech Republic 1705 55.0 11.8 2.6 9.8 19.3 1.4 55.0 0.0 0.3 1.1 52.4 57.7 England 1467 44.0 6.6 4.2 27.3 16.4 1.5 44.0 0.1 0.9 0.5 38.1 49.8 Finland 1456 56.0 11.4 1.4 5.8 24.6 0.8 56.0 0.0 0.0 0.8 55.7 56.2 Hong Kong, SAR 2577 41.7 31.0 1.5 7.8 17.5 0.5 41.7 0.1 0.0 0.4 41.4 42.1 Hungary 1588 68.8 5.9 2.3 10.9 9.9 2.1 68.8 0.3 0.2 1.6 65.2 72.4 Indonesia 2928 29.9 26.5 8.2 18.9 14.8 1.7 29.9 0.1 0.1 1.5 29.5 30.4 Iran, Islamic Rep. 2651 31.3 20.4 9.7 20.3 14.6 3.8 31.3 0.0 0.1 3.6 26.6 34.5 Israel 2103 59.2 8.4 7.0 11.5 10.4 3.5 59.2 0.2 0.3 3.0 61.3 57.1 Italy 1670 38.0 9.3 5.2 24.5 20.5 2.4 38.0 0.0 0.1 2.3 38.3 37.7 Japan 2369 53.6 15.9 0.9 14.2 15.2 0.1 53.6 0.0 0.0 0.1 50.4 56.7 Jordan 2525 46.7 16.4 6.9 14.7 14.0 1.4 46.7 0.2 0.0 1.2 45.7 47.6 Korea, Rep. of 3056 55.2 11.2 2.7 8.0 22.8 0.1 55.2 0.0 0.0 0.1 50.5 59.8 Latvia (LSS) 1428 59.1 12.9 3.2 9.0 14.2 1.6 59.1 0.3 0.0 1.2 61.3 57.1 Lithuania 1176 55.2 6.5 3.1 11.2 22.2 1.7 55.2 0.0 0.0 1.7 55.2 55.3 Macedonia, Rep. of 2013 43.8 11.9 4.5 13.2 21.3 5.2 43.8 0.4 0.3 4.5 42.9 44.7 Malaysia 2781 37.2 17.7 7.3 8.3 28.4 1.1 37.2 0.0 0.1 1.1 34.9 39.8 Moldova 1869 43.7 11.0 5.9 9.3 28.2 1.9 43.7 0.2 0.3 1.4 43.5 43.9 Morocco 2674 37.4 12.1 13.5 18.6 14.1 4.1 37.4 0.4 0.4 3.3 37.4 37.5 Netherlands 1477 61.6 7.8 3.8 10.5 15.9 0.4 61.6 0.0 0.0 0.4 61.6 61.5 New Zealand 1789 53.7 9.2 4.9 16.6 15.3 0.4 53.7 0.1 0.0 0.3 53.9 53.5 Philippines 3310 41.1 8.1 9.9 14.9 25.4 0.6 41.1 0.1 0.0 0.4 40.3 42.1 Romania 1713 44.0 7.0 4.8 11.5 31.2 1.6 44.0 0.4 0.1 1.1 44.5 43.6 Russian Federation 2162 49.3 9.7 3.8 9.5 24.1 3.6 49.3 0.1 0.1 3.4 48.7 49.9 Singapore 2490 30.5 16.2 8.3 17.1 27.1 0.8 30.5 0.1 0.0 0.7 29.3 31.5 Slovak Republic 1758 65.0 11.0 1.4 7.9 12.9 1.7 65.0 0.0 0.0 1.7 59.1 71.0 Slovenia 1546 61.9 8.9 2.0 10.2 15.6 1.4 61.9 0.1 0.0 1.3 60.5 63.4 South Africa 4037 32.1 6.1 7.8 17.1 34.4 2.5 32.1 0.7 0.5 1.2 29.0 35.8 Thailand 2870 33.6 9.0 6.1 13.4 37.4 0.4 33.6 0.0 0.0 0.4 36.1 30.6 Tunisia 2512 24.6 13.2 8.2 19.7 26.8 7.6 24.6 4.1 0.3 3.2 23.5 25.7 Turkey 3921 47.4 23.3 5.1 9.1 14.0 1.1 47.4 0.0 0.0 1.1 47.0 47.7 United States 4444 49.4 9.8 7.1 18.4 14.9 0.5 49.4 0.0 0.1 0.3 47.2 51.6 International Avg.. 47.1 12.6 5.1 13.4 19.9 1.8 47.1 0.2 0.1 1.4 45.9 48.3 DIFF = Item Difficulty Other Incorrect = Sum of invalid, not reached and omitted Because of missing gender information, some totals may appear inconsistent

THIRD INTERNATIONAL MATHEMATICS AND SCIENCE STUDY - 1999 ASSESSMENT 23:49 Monday, December 11, 2000 12 Percent of responses by Item Category - 8th Grade Science: Physics Label: Color reflecting most light ( S012012 - B06 ) Item Type = MC Key = A OTHER INCOR NOT 1.GIRL 2.BOY COUNTRY N A B C D RECT DIFF INVALID REACHED OMIT % Right % Right Australia 2022 89.1 3.0 6.4 1.4 0.1 89.1 0.1 0.0 0.0 88.2 90.1 Belgium (Flemish) 2620 94.0 0.8 4.2 1.0 0.1 94.0 0.0 0.0 0.0 94.7 93.3 Bulgaria 1644 86.0 3.5 7.2 2.0 1.3 86.0 0.4 0.1 0.8 86.4 85.5 Canada 4356 83.2 1.9 12.2 2.2 0.5 83.2 0.0 0.1 0.4 81.4 85.2 Chile 2930 74.5 11.5 8.4 3.9 1.8 74.5 0.0 0.9 0.9 76.1 72.9 Chinese Taipei 2873 88.6 3.5 6.6 1.2 0.1 88.6 0.0 0.0 0.1 87.8 89.4 Cyprus 1559 75.6 11.7 9.9 2.7 0.2 75.6 0.0 0.0 0.2 75.7 75.5 Czech Republic 1705 90.3 2.0 6.3 0.5 0.8 90.3 0.1 0.3 0.4 88.5 92.2 England 1467 88.7 3.2 6.4 0.7 1.0 88.7 0.1 0.9 0.0 86.6 90.9 Finland 1456 85.3 6.1 6.8 1.7 0.2 85.3 0.0 0.0 0.2 87.3 83.2 Hong Kong, SAR 2577 85.4 2.7 10.1 1.6 0.3 85.4 0.2 0.0 0.1 85.0 85.9 Hungary 1588 93.6 1.6 2.1 2.0 0.8 93.6 0.1 0.3 0.4 93.6 93.5 Indonesia 2928 78.0 8.7 7.7 4.9 0.7 78.0 0.0 0.1 0.6 75.7 80.5 Iran, Islamic Rep. 2650 73.5 4.3 16.9 3.9 1.4 73.5 0.0 0.1 1.3 68.6 76.8 Israel 2103 85.2 3.6 6.8 2.8 1.6 85.2 0.1 0.4 1.2 84.9 85.7 Italy 1670 81.7 4.4 9.2 3.8 0.9 81.7 0.0 0.1 0.8 83.3 79.9 Japan 2369 87.2 2.3 8.3 2.1 0.1 87.2 0.0 0.0 0.1 85.8 88.6 Jordan 2526 69.7 9.4 15.9 3.9 1.1 69.7 0.2 0.0 0.9 68.6 70.7 Korea, Rep. of 3056 78.2 7.4 13.7 0.8 0.0 78.2 0.0 0.0 0.0 76.0 80.3 Latvia (LSS) 1428 85.7 4.6 4.9 4.1 0.7 85.7 0.3 0.0 0.4 86.4 85.0 Lithuania 1176 88.5 3.3 3.7 4.0 0.5 88.5 0.0 0.0 0.5 88.2 88.7 Macedonia, Rep. of 2013 77.4 8.2 7.8 5.1 1.5 77.4 0.3 0.3 1.0 76.5 78.2 Malaysia 2781 87.4 6.4 4.0 1.9 0.2 87.4 0.0 0.1 0.1 88.0 86.7 Moldova 1869 75.3 4.5 13.6 5.7 0.9 75.3 0.1 0.4 0.4 74.8 75.9 Morocco 2674 55.9 12.7 21.3 7.7 2.4 55.9 0.3 0.6 1.5 53.2 57.8 Netherlands 1477 91.6 2.3 4.7 1.1 0.3 91.6 0.0 0.0 0.3 91.1 92.2 New Zealand 1791 80.8 5.1 11.3 2.6 0.3 80.8 0.2 0.0 0.1 80.3 81.3 Philippines 3310 80.4 9.6 6.3 3.4 0.3 80.4 0.0 0.0 0.2 81.3 79.3 Romania 1712 85.8 4.6 6.0 2.6 1.0 85.8 0.4 0.1 0.5 86.6 84.8 Russian Federation 2162 89.6 2.5 4.6 2.1 1.2 89.6 0.2 0.1 0.8 88.7 90.6 Singapore 2490 90.6 2.4 4.9 1.8 0.3 90.6 0.0 0.0 0.2 90.4 90.7 Slovak Republic 1758 92.0 2.0 4.5 1.3 0.3 92.0 0.0 0.0 0.3 92.2 91.7 Slovenia 1546 90.6 2.8 3.6 2.5 0.5 90.6 0.2 0.1 0.3 90.1 91.0 South Africa 4037 69.3 9.1 11.7 7.8 2.1 69.3 0.6 0.6 0.9 66.7 72.4 Thailand 2870 72.8 16.6 1.6 8.7 0.3 72.8 0.0 0.0 0.3 72.6 73.0 Tunisia 2521 72.7 5.1 16.5 3.0 2.6 72.7 1.3 0.3 1.0 68.9 76.7 Turkey 3921 75.2 11.3 8.1 5.0 0.4 75.2 0.0 0.0 0.4 74.9 75.4 United States 4444 82.9 3.9 10.5 2.3 0.4 82.9 0.0 0.1 0.3 82.8 83.1 International Avg.. 82.4 5.5 8.3 3.0 0.8 82.4 0.1 0.2 0.5 81.8 83.0 DIFF = Item Difficulty Other Incorrect = Sum of invalid, not reached and omitted Because of missing gender information, some totals may appear inconsistent

THIRD INTERNATIONAL MATHEMATICS AND SCIENCE STUDY - 1999 ASSESSMENT 23:49 Monday, December 11, 2000 7 Percent of responses by Item Category - 8th Grade Mathematics: Data Representation, Analysis and Probability Label: Graph showing greatest increase ( M012007 - B07 ) Item Type = MC Key = D OTHER INCOR NOT 1.GIRL 2.BOY COUNTRY N A B C D RECT DIFF INVALID REACHED OMIT % Right % Right Australia 2022 6.7 7.3 10.0 75.7 0.3 75.7 0.1 0.0 0.2 79.1 72.2 Belgium (Flemish) 2620 13.2 5.4 10.0 70.7 0.7 70.7 0.3 0.0 0.4 73.5 67.9 Bulgaria 1644 13.2 5.1 24.3 55.4 1.9 55.4 0.9 0.1 0.9 56.3 54.4 Canada 4356 7.2 7.3 10.3 74.8 0.4 74.8 0.0 0.1 0.3 75.8 74.0 Chile 2930 26.9 5.0 25.7 39.1 3.2 39.1 0.0 0.9 2.3 39.8 38.4 Chinese Taipei 2873 6.5 3.6 10.2 79.5 0.2 79.5 0.0 0.0 0.1 81.1 77.9 Cyprus 1554 36.1 4.7 17.0 40.4 1.8 40.4 0.2 0.0 1.6 40.4 40.4 Czech Republic 1705 23.7 3.6 12.6 57.9 2.1 57.9 0.5 0.3 1.4 56.8 59.1 England 1467 6.7 4.4 12.9 74.4 1.6 74.4 0.2 0.9 0.5 75.0 73.7 Finland 1456 2.8 6.3 8.8 81.0 1.2 81.0 0.0 0.0 1.2 81.8 80.2 Hong Kong, SAR 2577 3.8 8.3 4.8 82.9 0.2 82.9 0.0 0.0 0.1 84.1 81.8 Hungary 1588 9.7 4.2 12.6 71.7 1.8 71.7 0.5 0.3 1.0 72.5 71.0 Indonesia 2931 15.7 5.4 36.0 42.0 0.9 42.0 0.1 0.1 0.7 43.8 40.1 Iran, Islamic Rep............. Israel 2103 17.8 5.1 13.7 61.7 1.7 61.7 0.0 0.4 1.3 61.6 62.0 Italy 1670 21.5 3.1 13.0 60.9 1.5 60.9 0.0 0.2 1.3 60.1 61.9 Japan 2369 1.9 3.7 2.7 91.7 0.1 91.7 0.0 0.0 0.0 93.9 89.4 Jordan 2526 31.1 4.9 23.6 38.3 2.2 38.3 0.5 0.0 1.8 38.5 38.1 Korea, Rep. of 3056 4.8 1.6 3.8 89.8 0.0 89.8 0.0 0.0 0.0 91.1 88.6 Latvia (LSS) 1427 12.8 6.8 13.7 61.9 4.8 61.9 3.1 0.0 1.7 65.6 58.2 Lithuania 1176 20.6 3.2 11.8 62.2 2.2 62.2 0.1 0.1 2.1 63.5 60.9 Macedonia, Rep. of 2013 18.3 8.2 17.4 52.2 3.9 52.2 0.2 0.4 3.4 53.6 50.8 Malaysia 2781 15.5 3.4 12.4 67.8 0.9 67.8 0.0 0.1 0.8 67.9 67.8 Moldova 1558 42.9 5.2 18.6 30.3 3.0 30.3 0.5 0.4 2.1 32.1 28.2 Morocco 2673 27.7 11.9 33.8 21.7 5.0 21.7 0.5 0.8 3.7 21.0 22.1 Netherlands 1477 4.5 6.9 5.8 82.3 0.5 82.3 0.0 0.0 0.5 80.6 84.2 New Zealand 1791 9.2 6.6 12.3 71.7 0.3 71.7 0.1 0.0 0.2 75.0 68.5 Philippines 3310 30.0 5.7 27.9 35.8 0.6 35.8 0.3 0.0 0.3 36.1 35.5 Romania 1712 20.5 9.5 31.8 35.9 2.3 35.9 0.8 0.2 1.3 38.5 33.0 Russian Federation 2162 12.2 2.6 12.5 70.4 2.3 70.4 0.5 0.1 1.7 72.1 68.6 Singapore 2490 5.1 4.6 4.6 85.4 0.3 85.4 0.0 0.0 0.3 86.4 84.5 Slovak Republic 1758 12.8 3.5 17.1 64.9 1.7 64.9 0.2 0.0 1.5 62.3 67.6 Slovenia 1546 6.9 4.7 10.8 76.5 1.0 76.5 0.2 0.1 0.7 80.0 72.8 South Africa 4037 40.1 9.6 24.7 22.6 2.9 22.6 0.8 0.7 1.3 22.7 22.6 Thailand 2870 24.8 4.7 14.9 54.9 0.7 54.9 0.0 0.0 0.7 57.3 52.0 Tunisia 2519 23.4 5.8 30.8 35.3 4.7 35.3 1.5 0.5 2.7 34.4 36.3 Turkey 3921 33.7 4.4 18.8 42.1 1.0 42.1 0.0 0.1 0.9 43.2 41.3 United States 4444 8.3 8.5 9.9 72.8 0.5 72.8 0.0 0.1 0.3 73.1 72.5 International Avg.. 16.7 5.5 15.7 60.4 1.6 60.4 0.3 0.2 1.1 61.4 59.4 DIFF = Item Difficulty Other Incorrect = Sum of invalid, not reached and omitted Because of missing gender information, some totals may appear inconsistent

THIRD INTERNATIONAL MATHEMATICS AND SCIENCE STUDY - 1999 ASSESSMENT 23:49 Monday, December 11, 2000 8 Percent of responses by Item Category - 8th Grade Mathematics: Fractions and Number Sense Label: Calories in portion of food from ratio ( M012008 - B08 ) Item Type = MC Key = A OTHER INCOR NOT 1.GIRL 2.BOY COUNTRY N A B C D E RECT DIFF INVALID REACHED OMIT % Right % Right Australia 2022 71.8 21.2 4.0 1.5 1.1 0.3 71.8 0.1 0.0 0.2 71.9 71.7 Belgium (Flemish) 2620 78.0 15.8 3.6 1.2 1.0 0.4 78.0 0.0 0.0 0.4 76.2 79.8 Bulgaria 1644 68.4 18.5 3.3 3.5 3.8 2.4 68.4 0.2 0.1 2.1 72.2 64.4 Canada 4356 72.9 19.5 3.9 1.6 1.4 0.6 72.9 0.1 0.1 0.4 72.7 73.1 Chile 2931 62.2 15.9 7.5 4.1 3.5 6.8 62.2 0.0 1.1 5.7 59.3 65.1 Chinese Taipei 2873 84.3 6.3 5.1 1.5 2.6 0.2 84.3 0.0 0.0 0.2 84.5 84.1 Cyprus 1559 74.3 13.7 5.7 2.3 3.1 0.9 74.3 0.1 0.0 0.8 77.0 71.8 Czech Republic 1705 76.2 14.7 4.2 1.3 2.2 1.4 76.2 0.1 0.3 1.0 73.1 79.3 England 1467 69.7 22.7 3.4 2.3 0.7 1.2 69.7 0.0 1.0 0.2 68.2 71.0 Finland 1456 65.4 29.1 2.9 1.0 1.2 0.4 65.4 0.0 0.0 0.4 62.0 68.8 Hong Kong, SAR 2577 84.4 10.1 3.5 1.0 0.6 0.5 84.4 0.1 0.0 0.4 85.9 82.9 Hungary 1588 72.7 19.3 2.8 1.5 1.2 2.5 72.7 0.0 0.4 2.1 70.9 74.3 Indonesia 2930 55.5 13.6 9.4 9.9 9.8 1.8 55.5 0.0 0.1 1.6 54.1 57.0 Iran, Islamic Rep. 2650 65.9 10.2 8.7 4.9 7.6 2.8 65.9 0.0 0.1 2.6 62.3 68.3 Israel 2103 66.1 19.4 4.8 3.2 3.3 3.2 66.1 0.0 0.5 2.7 62.3 70.1 Italy 1670 73.5 11.9 6.6 2.6 3.4 1.9 73.5 0.0 0.2 1.7 73.1 74.0 Japan 2369 63.2 20.6 10.7 2.5 2.6 0.4 63.2 0.0 0.0 0.4 63.6 62.8 Jordan 2523 56.2 13.7 11.1 6.0 9.0 3.9 56.2 0.1 0.0 3.9 55.0 57.3 Korea, Rep. of 3056 85.7 8.0 4.2 1.4 0.6 0.2 85.7 0.0 0.0 0.1 85.2 86.2 Latvia (LSS) 1426 70.4 23.1 3.1 0.2 1.5 1.7 70.4 0.1 0.0 1.6 72.5 68.4 Lithuania 1176 54.5 23.4 6.4 1.4 12.7 1.7 54.5 0.0 0.1 1.6 54.9 54.0 Macedonia, Rep. of 2012 73.7 11.0 5.2 2.3 3.1 4.7 73.7 0.2 0.4 4.1 74.3 73.1 Malaysia 2781 78.2 8.8 4.1 2.5 5.1 1.3 78.2 0.0 0.1 1.2 78.6 77.8 Moldova 1869 73.3 13.0 5.6 2.8 3.4 1.9 73.3 0.0 0.4 1.4 73.6 73.0 Morocco 2671 53.1 14.1 13.9 6.6 6.7 5.5 53.1 0.3 0.8 4.4 49.1 55.9 Netherlands 1477 70.6 22.8 3.5 1.6 0.9 0.6 70.6 0.1 0.0 0.6 67.2 74.5 New Zealand 1790 68.8 22.1 5.5 1.9 1.2 0.5 68.8 0.0 0.0 0.5 67.5 70.1 Philippines 3310 42.5 18.0 15.4 10.3 12.8 1.0 42.5 0.1 0.0 0.9 42.0 43.0 Romania 1712 72.5 12.6 6.5 2.4 4.1 1.9 72.5 0.1 0.3 1.6 74.5 70.5 Russian Federation 2162 75.5 13.4 3.7 1.9 3.2 2.4 75.5 0.0 0.2 2.2 75.9 75.1 Singapore 2490 90.5 5.7 1.9 1.0 0.6 0.3 90.5 0.0 0.0 0.3 92.0 89.1 Slovak Republic 1758 78.3 14.3 2.9 1.3 2.0 1.2 78.3 0.0 0.1 1.0 77.4 79.1 Slovenia 1546 75.3 17.1 3.3 1.8 1.5 1.1 75.3 0.0 0.1 1.0 77.1 73.3 South Africa 4037 37.1 19.1 18.0 10.6 11.4 3.9 37.1 0.3 0.9 2.7 35.5 39.0 Thailand 2870 75.4 11.4 4.9 3.9 4.1 0.4 75.4 0.0 0.0 0.3 72.6 78.7 Tunisia 2515 69.4 10.1 7.1 3.0 5.0 5.5 69.4 0.7 0.6 4.1 67.4 71.4 Turkey 3920 66.1 10.7 9.6 6.5 5.7 1.3 66.1 0.0 0.1 1.3 67.1 65.4 United States 4444 68.1 19.8 6.1 2.8 2.4 0.7 68.1 0.0 0.1 0.6 67.6 68.6 International Avg.. 69.5 15.6 6.1 3.1 3.8 1.8 69.5 0.1 0.2 1.5 68.9 70.1 DIFF = Item Difficulty Other Incorrect = Sum of invalid, not reached and omitted Because of missing gender information, some totals may appear inconsistent

THIRD INTERNATIONAL MATHEMATICS AND SCIENCE STUDY - 1999 ASSESSMENT 23:49 Monday, December 11, 2000 9 Percent of responses by Item Category - 8th Grade Mathematics: Fractions and Number Sense Label: Figure showing equivalent fractions ( M012009 - B09 ) Item Type = MC Key = A OTHER INCOR NOT 1.GIRL 2.BOY COUNTRY N A B C D RECT DIFF INVALID REACHED OMIT % Right % Right Australia 2022 65.0 9.6 6.9 16.3 2.2 65.0 0.9 0.0 1.4 66.1 63.8 Belgium (Flemish) 2620 74.0 5.5 7.8 10.3 2.4 74.0 1.3 0.0 1.1 76.4 71.6 Bulgaria 1644 51.8 12.2 15.9 7.3 12.8 51.8 4.8 0.2 7.9 51.9 51.5 Canada 4356 71.9 7.4 4.3 14.8 1.6 71.9 0.8 0.1 0.7 74.2 69.6 Chile 2931 45.7 12.5 12.4 18.4 11.0 45.7 0.0 1.6 9.3 49.2 42.2 Chinese Taipei 2873 80.2 3.9 5.8 7.4 2.6 80.2 0.4 0.0 2.3 83.1 77.4 Cyprus 1554 62.4 9.9 8.4 13.4 5.8 62.4 3.0 0.0 2.8 68.4 56.5 Czech Republic 1705 46.2 16.6 24.1 7.1 6.0 46.2 1.2 0.3 4.5 47.8 44.5 England 1467 59.9 13.0 8.5 15.4 3.2 59.9 1.1 1.0 1.1 60.3 59.4 Finland 1456 63.3 9.6 6.4 16.0 4.6 63.3 0.0 0.0 4.6 70.9 55.6 Hong Kong, SAR 2577 82.4 3.2 3.6 9.1 1.7 82.4 0.2 0.0 1.5 85.1 79.8 Hungary 1588 52.9 14.0 20.5 6.2 6.4 52.9 0.8 0.4 5.1 55.1 50.9 Indonesia 2930 45.6 17.7 15.6 15.4 5.7 45.6 0.2 0.1 5.4 48.8 42.2 Iran, Islamic Rep. 2650 56.5 8.5 14.1 10.7 10.2 56.5 0.0 0.2 10.0 57.2 56.0 Israel 2103 58.9 14.3 10.2 9.2 7.4 58.9 1.1 0.6 5.8 60.5 57.4 Italy 1670 59.9 10.5 11.3 14.7 3.6 59.9 0.0 0.2 3.4 60.9 58.7 Japan 2369 80.9 6.4 6.6 5.1 1.0 80.9 0.2 0.0 0.7 83.2 78.7 Jordan 2523 49.2 10.1 13.1 17.5 10.1 49.2 4.2 0.1 5.8 54.2 44.8 Korea, Rep. of 3056 81.4 4.7 5.5 7.9 0.5 81.4 0.2 0.0 0.3 81.0 81.7 Latvia (LSS) 1426 48.2 13.2 19.4 9.0 10.2 48.2 5.4 0.1 4.7 49.2 47.2 Lithuania 1176 51.3 12.6 18.6 10.5 6.9 51.3 0.1 0.2 6.7 51.7 51.0 Macedonia, Rep. of 2013 45.0 14.8 14.3 7.7 18.2 45.0 7.8 0.6 9.8 47.2 42.9 Malaysia 2781 75.5 5.7 2.7 14.4 1.8 75.5 0.0 0.1 1.7 77.0 73.7 Moldova 1868 54.5 10.8 18.1 9.2 7.4 54.5 1.7 0.5 5.2 56.8 51.9 Morocco 2671 23.2 17.0 21.8 19.0 19.0 23.2 4.0 1.0 14.1 24.1 22.5 Netherlands 1477 68.8 11.1 12.0 7.0 1.1 68.8 0.5 0.0 0.6 68.3 69.5 New Zealand 1790 58.0 10.7 7.0 21.2 3.1 58.0 1.0 0.0 2.1 61.3 54.7 Philippines 3310 58.5 13.3 11.3 13.4 3.5 58.5 0.2 0.1 3.2 59.5 57.4 Romania 1713 43.8 11.9 19.3 11.2 13.7 43.8 8.0 0.3 5.4 45.2 42.5 Russian Federation 2162 61.8 10.4 13.4 7.2 7.2 61.8 2.0 0.3 4.9 64.6 58.7 Singapore 2490 83.4 4.7 2.8 8.4 0.7 83.4 0.1 0.0 0.5 84.6 82.3 Slovak Republic 1758 51.6 14.8 18.1 8.7 6.8 51.6 2.6 0.1 4.1 52.1 51.1 Slovenia 1546 66.6 11.8 10.9 6.4 4.2 66.6 1.1 0.1 3.0 68.2 64.8 South Africa 4037 29.4 13.1 12.7 19.6 25.2 29.4 7.6 1.0 16.6 28.7 30.2 Thailand 2870 61.3 11.7 9.3 16.0 1.7 61.3 0.0 0.1 1.7 62.5 59.8 Tunisia 2509 33.4 7.0 8.3 12.4 39.0 33.4 28.8 0.8 9.4 34.2 32.6 Turkey 3920 46.0 13.9 18.0 13.1 9.0 46.0 0.4 0.1 8.5 48.9 43.8 United States 4444 63.3 10.3 8.4 15.6 2.4 63.3 0.2 0.1 2.1 66.4 60.2 International Avg.. 58.2 10.8 11.8 11.9 7.4 58.2 2.4 0.3 4.7 60.1 56.3 DIFF = Item Difficulty Other Incorrect = Sum of invalid, not reached and omitted Because of missing gender information, some totals may appear inconsistent

THIRD INTERNATIONAL MATHEMATICS AND SCIENCE STUDY - 1999 ASSESSMENT 23:49 Monday, December 11, 2000 10 Percent of responses by Item Category - 8th Grade Mathematics: Fractions and Number Sense Label: Smallest decimal fraction ( M012010 - B10 ) Item Type = MC Key = E OTHER INCOR NOT 1.GIRL 2.BOY COUNTRY N A B C D E RECT DIFF INVALID REACHED OMIT % Right % Right Australia 2022 21.9 4.3 1.0 14.6 57.9 0.3 57.9 0.1 0.0 0.2 54.0 62.0 Belgium (Flemish) 2620 25.2 2.2 0.6 4.3 67.2 0.5 67.2 0.2 0.0 0.3 62.9 71.4 Bulgaria 1644 27.5 2.8 1.4 20.5 46.2 1.7 46.2 0.2 0.2 1.4 43.3 49.1 Canada 4356 22.8 2.8 1.0 12.4 60.5 0.5 60.5 0.0 0.1 0.4 56.7 64.4 Chile 2931 21.5 1.8 1.1 58.3 14.3 3.0 14.3 0.0 1.7 1.3 12.2 16.4 Chinese Taipei 2873 20.8 1.4 1.2 7.1 69.5 0.1 69.5 0.0 0.0 0.1 65.5 73.5 Cyprus 1559 41.7 8.3 2.4 20.0 27.0 0.6 27.0 0.2 0.0 0.4 22.3 31.5 Czech Republic 1705 24.3 2.1 0.7 13.5 58.7 0.7 58.7 0.1 0.3 0.3 54.0 63.6 England 1467 24.4 3.9 0.5 24.6 45.2 1.3 45.2 0.1 1.0 0.3 36.1 54.2 Finland 1456 16.6 3.4 0.3 9.5 69.9 0.2 69.9 0.0 0.0 0.2 60.3 79.8 Hong Kong, SAR 2577 13.0 1.1 0.5 2.1 82.6 0.7 82.6 0.1 0.0 0.6 81.9 83.3 Hungary 1588 31.7 1.4 1.0 10.6 54.8 0.6 54.8 0.0 0.4 0.2 48.4 61.1 Indonesia 2930 34.7 3.2 2.1 50.2 8.7 1.1 8.7 0.0 0.2 0.9 8.7 8.8 Iran, Islamic Rep. 2650 40.2 14.4 2.5 30.7 10.5 1.7 10.5 0.0 0.2 1.5 9.0 11.5 Israel 2103 40.9 4.2 2.6 20.7 29.3 2.3 29.3 0.1 0.6 1.7 21.5 37.6 Italy 1670 29.2 2.1 1.9 28.0 37.1 1.6 37.1 0.1 0.2 1.3 30.7 44.1 Japan 2369 23.2 0.3 0.3 2.8 73.2 0.0 73.2 0.0 0.0 0.0 66.7 79.7 Jordan 2523 14.6 4.3 4.1 49.8 26.0 1.3 26.0 0.2 0.1 1.0 26.4 25.6 Korea, Rep. of 3056 13.1 1.0 0.4 3.1 82.2 0.1 82.2 0.0 0.0 0.1 77.8 86.6 Latvia (LSS) 1426 31.0 3.0 1.5 15.2 48.8 0.6 48.8 0.1 0.1 0.4 42.7 55.0 Lithuania 1176 19.3 2.5 0.9 15.7 61.0 0.5 61.0 0.1 0.2 0.2 60.3 61.7 Macedonia, Rep. of 2013 36.5 1.4 1.7 33.1 25.3 2.0 25.3 0.3 0.6 1.1 22.9 27.6 Malaysia 2781 20.1 1.6 1.4 17.5 58.6 0.8 58.6 0.0 0.1 0.7 59.0 58.1 Moldova 1869 26.0 2.1 1.0 39.4 30.6 1.1 30.6 0.1 0.6 0.4 28.9 32.5 Morocco 2671 11.4 10.1 4.3 40.1 31.1 3.0 31.1 0.3 1.1 1.6 30.0 31.8 Netherlands 1477 16.1 2.5 0.5 6.7 73.9 0.3 73.9 0.0 0.0 0.3 68.3 80.1 New Zealand 1790 26.7 4.2 1.3 24.7 42.5 0.6 42.5 0.2 0.0 0.3 39.1 45.9 Philippines 3310 16.0 3.8 2.6 66.2 10.5 0.9 10.5 0.1 0.1 0.7 10.9 10.0 Romania 1713 24.4 4.8 3.2 38.0 27.7 1.9 27.7 0.4 0.4 1.0 25.8 29.8 Russian Federation 2162 26.5 1.3 0.8 17.5 52.5 1.3 52.5 0.3 0.3 0.7 51.7 53.4 Singapore 2490 9.3 1.3 0.3 2.6 86.4 0.1 86.4 0.0 0.0 0.1 84.1 88.4 Slovak Republic 1758 20.2 2.1 0.4 16.4 60.4 0.6 60.4 0.0 0.2 0.4 53.5 67.4 Slovenia 1546 22.4 3.1 1.1 14.6 58.3 0.4 58.3 0.1 0.1 0.2 53.8 63.3 South Africa 4037 11.5 3.2 2.0 75.0 5.6 2.7 5.6 0.5 1.2 1.0 4.3 7.1 Thailand 2870 26.2 1.8 1.3 25.5 44.9 0.3 44.9 0.0 0.1 0.3 47.4 41.8 Tunisia 2517 17.8 19.9 2.6 22.1 34.1 3.6 34.1 0.6 0.8 2.3 27.8 40.4 Turkey 3920 40.0 2.0 2.5 45.3 8.6 1.7 8.6 0.0 0.1 1.6 6.2 10.5 United States 4444 23.2 3.4 1.5 19.9 50.9 1.1 50.9 0.0 0.1 1.0 46.6 55.1 International Avg.. 24.0 3.7 1.5 24.2 45.6 1.1 45.6 0.1 0.3 0.7 42.1 49.1 DIFF = Item Difficulty Other Incorrect = Sum of invalid, not reached and omitted Because of missing gender information, some totals may appear inconsistent

THIRD INTERNATIONAL MATHEMATICS AND SCIENCE STUDY - 1999 ASSESSMENT 23:49 Monday, December 11, 2000 11 Percent of responses by Item Category - 8th Grade Mathematics: Geometry Label: Cube from folded 2-dimensional net ( M012011 - B11 ) Item Type = MC Key = C OTHER INCOR NOT 1.GIRL 2.BOY COUNTRY N A B C D RECT DIFF INVALID REACHED OMIT % Right % Right Australia 2022 6.6 14.0 75.4 3.0 1.0 75.4 0.4 0.0 0.6 73.0 77.9 Belgium (Flemish) 2620 4.2 9.6 81.8 3.2 1.3 81.8 0.9 0.0 0.4 80.7 83.0 Bulgaria 1644 11.2 18.2 64.0 4.0 2.6 64.0 0.4 0.2 1.9 62.1 65.9 Canada 4356 6.5 16.4 73.7 2.6 0.8 73.7 0.2 0.1 0.5 72.2 75.4 Chile 2931 17.6 23.4 48.1 6.1 4.8 48.1 0.0 1.7 3.0 46.2 50.0 Chinese Taipei 2873 5.2 9.8 82.9 1.8 0.4 82.9 0.0 0.0 0.4 81.8 84.0 Cyprus 1556 21.4 28.0 44.5 4.7 1.4 44.5 0.3 0.0 1.1 44.1 45.0 Czech Republic 1705 5.8 10.3 77.9 3.8 2.2 77.9 0.0 0.3 1.9 75.2 80.6 England 1467 9.3 20.5 64.4 4.0 1.8 64.4 0.5 1.0 0.3 60.2 68.6 Finland 1456 5.7 14.1 77.1 2.2 1.0 77.1 0.0 0.0 1.0 81.7 72.4 Hong Kong, SAR 2577 4.1 8.6 84.4 2.6 0.4 84.4 0.0 0.0 0.3 84.5 84.2 Hungary 1588 7.7 19.3 67.8 3.5 1.7 67.8 0.1 0.4 1.2 66.3 69.5 Indonesia 2930 21.1 31.6 38.1 7.6 1.6 38.1 0.0 0.2 1.4 34.1 42.3 Iran, Islamic Rep. 2650 25.2 30.5 28.0 13.0 3.3 28.0 0.0 0.2 3.1 25.1 30.0 Israel 2103 19.0 24.6 47.6 5.5 3.2 47.6 0.1 0.6 2.5 44.8 50.5 Italy 1670 12.9 26.0 54.6 5.5 1.0 54.6 0.1 0.3 0.6 52.9 56.4 Japan 2369 2.3 7.5 88.9 1.2 0.2 88.9 0.0 0.0 0.1 87.5 90.3 Jordan 2526 25.0 31.5 33.7 7.7 2.2 33.7 0.3 0.1 1.8 33.4 34.0 Korea, Rep. of 3056 3.9 8.8 84.7 2.4 0.2 84.7 0.0 0.0 0.2 83.1 86.2 Latvia (LSS) 1428 6.9 16.9 70.9 3.6 1.6 70.9 0.4 0.1 1.1 69.4 72.4 Lithuania 1176 9.6 25.3 60.5 2.9 1.7 60.5 0.0 0.2 1.6 58.0 63.0 Macedonia, Rep. of 2013 21.6 26.9 39.5 6.8 5.3 39.5 0.4 0.6 4.3 38.2 40.7 Malaysia 2781 7.4 15.6 71.5 4.6 0.9 71.5 0.0 0.1 0.8 67.9 75.7 Moldova 1869 21.7 21.8 46.5 7.2 2.7 46.5 0.4 0.6 1.7 45.8 47.4 Morocco 2672 30.4 25.6 21.4 16.4 6.2 21.4 0.4 1.2 4.6 21.2 21.6 Netherlands 1477 3.4 10.0 82.3 4.0 0.3 82.3 0.0 0.0 0.3 81.4 83.5 New Zealand 1791 8.3 16.1 70.4 4.1 1.2 70.4 0.7 0.0 0.4 71.1 69.6 Philippines 3310 31.1 34.6 24.5 8.9 1.0 24.5 0.1 0.1 0.7 20.6 29.0 Romania 1713 21.9 25.2 42.0 7.8 3.1 42.0 0.8 0.4 1.9 39.7 44.5 Russian Federation 2161 12.8 18.5 60.0 4.3 4.3 60.0 0.6 0.3 3.4 59.1 61.0 Singapore 2490 4.0 10.1 83.0 2.3 0.7 83.0 0.0 0.1 0.6 79.6 86.0 Slovak Republic 1758 7.8 13.9 74.3 2.5 1.5 74.3 0.2 0.2 1.1 73.9 74.7 Slovenia 1546 11.1 15.7 68.4 1.5 3.3 68.4 0.3 0.1 2.9 68.4 68.4 South Africa 4037 32.6 21.4 14.6 22.7 8.6 14.6 0.6 1.3 6.8 13.6 15.9 Thailand 2870 14.6 24.7 53.2 7.1 0.4 53.2 0.0 0.1 0.3 50.7 56.2 Tunisia 2517 21.5 27.6 37.2 5.0 8.7 37.2 2.1 0.8 5.8 34.2 40.2 Turkey 3920 23.0 32.0 34.4 9.0 1.7 34.4 0.0 0.1 1.6 36.7 32.6 United States 4444 9.6 20.4 64.7 4.6 0.7 64.7 0.1 0.1 0.5 61.4 67.9 International Avg.. 13.5 19.9 58.9 5.5 2.2 58.9 0.3 0.3 1.6 57.4 60.4 DIFF = Item Difficulty Other Incorrect = Sum of invalid, not reached and omitted Because of missing gender information, some totals may appear inconsistent

THIRD INTERNATIONAL MATHEMATICS AND SCIENCE STUDY - 1999 ASSESSMENT 23:49 Monday, December 11, 2000 12 Percent of responses by Item Category - 8th Grade Mathematics: Algebra Label: Equation representing relationship ( M012012 - B12 ) Item Type = MC Key = A OTHER INCOR NOT 1.GIRL 2.BOY COUNTRY N A B C D RECT DIFF INVALID REACHED OMIT % Right % Right Australia 2022 71.9 3.4 12.0 12.3 0.3 71.9 0.1 0.0 0.2 73.2 70.5 Belgium (Flemish) 2620 80.7 2.2 9.0 7.5 0.6 80.7 0.1 0.0 0.5 81.3 80.2 Bulgaria 1644 76.3 2.7 9.8 8.0 3.2 76.3 0.6 0.3 2.4 79.4 73.0 Canada 4356 82.0 1.7 6.7 9.1 0.5 82.0 0.1 0.1 0.3 83.7 80.2 Chile 2931 38.3 4.3 20.9 29.6 6.8 38.3 0.0 2.4 4.4 38.4 38.2 Chinese Taipei 2873 83.5 1.8 4.7 9.9 0.0 83.5 0.0 0.0 0.0 84.6 82.5 Cyprus 1557 65.6 3.1 13.2 16.9 1.1 65.6 0.0 0.0 1.1 70.1 61.2 Czech Republic 1705 71.7 4.2 8.4 13.2 2.5 71.7 0.2 0.3 2.1 73.1 70.2 England 1467 62.2 3.0 14.2 18.9 1.8 62.2 0.1 1.0 0.7 62.9 61.3 Finland 1456 68.5 3.5 12.2 14.5 1.4 68.5 0.0 0.1 1.3 73.4 63.5 Hong Kong, SAR 2577 93.5 1.5 2.0 2.6 0.4 93.5 0.1 0.0 0.2 94.5 92.5 Hungary 1588 79.8 3.0 4.0 10.6 2.5 79.8 0.3 0.5 1.8 81.5 78.1 Indonesia 2930 36.7 3.1 18.4 40.8 1.0 36.7 0.0 0.2 0.8 36.7 36.7 Iran, Islamic Rep. 2650 46.0 8.2 20.0 22.8 3.0 46.0 0.0 0.2 2.7 47.9 44.7 Israel 2103 67.8 3.5 13.1 12.9 2.6 67.8 0.1 0.6 2.0 68.3 67.3 Italy 1670 58.4 4.1 12.5 20.9 4.1 58.4 0.1 0.4 3.6 58.7 58.1 Japan 2369 86.0 1.5 4.7 7.5 0.3 86.0 0.0 0.0 0.2 86.4 85.6 Jordan 2526 46.1 4.6 27.0 20.9 1.4 46.1 0.2 0.1 1.1 46.9 45.4 Korea, Rep. of 3056 84.6 1.4 6.5 7.5 0.1 84.6 0.0 0.0 0.1 84.6 84.5 Latvia (LSS) 1428 71.5 2.3 10.5 12.8 2.9 71.5 0.3 0.3 2.3 76.5 66.5 Lithuania 1176 70.9 2.7 8.4 15.6 2.4 70.9 0.0 0.3 2.1 73.5 68.3 Macedonia, Rep. of 2013 62.9 4.1 15.6 11.7 5.6 62.9 0.1 0.8 4.7 64.7 61.2 Malaysia 2781 57.1 2.3 8.9 30.9 0.8 57.1 0.0 0.1 0.6 59.7 54.1 Moldova 1868 65.3 3.9 10.4 17.9 2.5 65.3 0.1 0.8 1.6 67.2 63.1 Morocco 2672 35.0 8.0 25.7 26.0 5.3 35.0 0.4 1.4 3.5 32.9 36.5 Netherlands 1477 80.1 4.5 7.0 7.7 0.6 80.1 0.0 0.0 0.6 79.5 80.7 New Zealand 1791 58.4 4.4 15.9 20.5 0.8 58.4 0.2 0.0 0.6 62.4 54.5 Philippines 3310 19.4 4.9 38.8 36.1 0.8 19.4 0.1 0.2 0.5 20.7 18.0 Romania 1713 67.1 4.2 14.7 10.5 3.5 67.1 0.7 0.4 2.4 69.6 64.5 Russian Federation 2162 82.0 1.6 6.2 8.6 1.7 82.0 0.1 0.5 1.1 86.4 77.1 Singapore 2490 88.5 1.0 3.2 7.0 0.3 88.5 0.0 0.1 0.3 89.0 88.0 Slovak Republic 1758 81.1 2.2 6.7 8.5 1.5 81.1 0.0 0.4 1.1 82.7 79.5 Slovenia 1546 83.1 1.9 6.0 7.9 1.1 83.1 0.2 0.1 0.8 85.0 81.1 South Africa 4037 20.6 7.2 44.9 23.8 3.5 20.6 0.5 1.7 1.3 20.0 21.4 Thailand 2870 67.2 3.4 11.5 17.3 0.6 67.2 0.1 0.1 0.5 70.0 63.8 Tunisia 2517 58.3 4.1 16.8 16.2 4.6 58.3 1.2 1.0 2.4 54.1 62.6 Turkey 3920 40.8 6.4 18.0 33.2 1.6 40.8 0.0 0.1 1.5 41.9 40.0 United States 4444 77.5 3.3 10.3 8.5 0.5 77.5 0.0 0.1 0.4 80.5 74.5 International Avg.. 65.4 3.5 13.1 16.0 2.0 65.4 0.2 0.4 1.4 66.9 63.9 DIFF = Item Difficulty Other Incorrect = Sum of invalid, not reached and omitted Because of missing gender information, some totals may appear inconsistent