Per country, the median of scores (expressed in protonorms) across a large number of high-range I.Q. tests is computed. Countries are ranked by median protonorm, and then by number of scores (n).
| Rank | Country | n | med. prot. | I.Q. (σ = 15) |
|---|---|---|---|---|
| 1 | Latvia | 11 | 646.0 | 174 |
| 2 | Croatia | 9 | 510.0 | 155 |
| 3 | Cambodia | 6 | 500.0 | 154 |
| 4 | Romania | 17 | 483.0 | 152 |
| 5 | Slovenia | 9 | 453.0 | 147 |
| 6 | Hungary | 13 | 448.0 | 147 |
| 7 | Belgium | 122 | 447.0 | 146 |
| 8 | Serbia | 11 | 442.0 | 145 |
| 9 | Russia | 7 | 439.0 | 145 |
| 10 | Lebanon | 18 | 438.0 | 145 |
| 11 | Spain | 150 | 436.0 | 144 |
| 12 | Portugal | 52 | 435.0 | 144 |
| 13 | Denmark | 34 | 433.0 | 143 |
| 14 | Bulgaria | 23 | 433.0 | 143 |
| 15 | Austria | 32 | 430.0 | 143 |
| 16 | Argentina | 9 | 430.0 | 143 |
| 17 | Czech_Republic | 10 | 428.5 | 143 |
| 18 | Malta | 41 | 428.0 | 143 |
| 19 | Micronesia | 2 | 427.5 | 142 |
| 20 | France | 101 | 427.0 | 142 |
| 21 | United_Kingdom | 222 | 427.0 | 142 |
| 22 | Germany | 249 | 425.0 | 142 |
| 23 | Canada | 196 | 424.0 | 142 |
| 24 | Poland | 46 | 422.5 | 141 |
| 25 | Nigeria | 15 | 420.0 | 141 |
| 26 | Ireland | 15 | 419.0 | 141 |
| 27 | India | 72 | 414.0 | 140 |
| 28 | China | 53 | 414.0 | 140 |
| 29 | Switzerland | 23 | 413.0 | 140 |
| 30 | Luxembourg | 5 | 412.0 | 139 |
| 31 | Sweden | 227 | 409.0 | 139 |
| 32 | Australia | 85 | 405.0 | 138 |
| 33 | Finland | 217 | 395.0 | 137 |
| 34 | Malaysia | 5 | 395.0 | 137 |
| 35 | Norway | 61 | 394.0 | 137 |
| 36 | Israel | 19 | 394.0 | 137 |
| 37 | Iran | 12 | 394.0 | 137 |
| 38 | Brazil | 31 | 393.0 | 136 |
| 39 | Yugoslavia | 3 | 393.0 | 136 |
| 40 | United_States | 1321 | 392.0 | 136 |
| 41 | Thailand | 12 | 391.5 | 136 |
| 42 | Italy | 98 | 387.5 | 135 |
| 43 | Mexico | 14 | 387.0 | 135 |
| 44 | Netherlands | 319 | 385.0 | 135 |
| 45 | Korea_South | 105 | 379.0 | 134 |
| 46 | Turkey | 68 | 377.0 | 134 |
| 47 | Greece | 177 | 376.0 | 134 |
| 48 | South_Africa | 53 | 376.0 | 134 |
| 49 | Japan | 36 | 375.0 | 134 |
| 50 | Bosnia_and_Herzegovina | 9 | 375.0 | 134 |
| 51 | Hong_Kong | 17 | 374.0 | 133 |
| 52 | Iceland | 8 | 371.0 | 133 |
| 53 | New_Zealand | 16 | 368.5 | 132 |
| 54 | Cyprus | 14 | 368.0 | 132 |
| 55 | Philippines | 32 | 365.5 | 132 |
| 56 | Slovakia | 21 | 359.0 | 131 |
| 57 | Kyrgyzstan | 4 | 359.0 | 131 |
| 58 | Cuba | 2 | 358.5 | 131 |
| 59 | Chile | 3 | 329.0 | 126 |
| 60 | Tunisia | 3 | 323.0 | 125 |
| 61 | Singapore | 18 | 304.0 | 123 |
| 62 | Lithuania | 42 | 280.0 | 119 |
| 63 | Dominican_Republic | 11 | 153.0 | 102 |
N = 4636 (only countries with at least 2 scores are included)
Per country, the median of scores (expressed in protonorms) across a large number of high-range I.Q. tests is computed. Countries are ranked by median protonorm, and then by number of scores (n).
| Rank | Country | n | med. prot. | I.Q. (σ = 15) |
|---|---|---|---|---|
| 1 | Croatia | 5 | 582.0 | 165 |
| 2 | Latvia | 5 | 530.0 | 158 |
| 3 | Cambodia | 6 | 500.0 | 154 |
| 4 | Slovenia | 8 | 476.5 | 151 |
| 5 | Belgium | 108 | 453.0 | 147 |
| 6 | Serbia | 10 | 442.0 | 145 |
| 7 | Lebanon | 15 | 440.0 | 145 |
| 8 | Portugal | 48 | 437.5 | 145 |
| 9 | Austria | 24 | 436.0 | 144 |
| 10 | Denmark | 32 | 433.5 | 144 |
| 11 | United_Kingdom | 186 | 433.0 | 143 |
| 12 | Norway | 47 | 433.0 | 143 |
| 13 | Poland | 43 | 433.0 | 143 |
| 14 | Switzerland | 21 | 433.0 | 143 |
| 15 | Russia | 7 | 433.0 | 143 |
| 16 | Germany | 214 | 431.5 | 143 |
| 17 | France | 98 | 431.0 | 143 |
| 18 | Malta | 40 | 429.0 | 143 |
| 19 | Bulgaria | 15 | 428.0 | 143 |
| 20 | Argentina | 9 | 425.0 | 142 |
| 21 | Canada | 164 | 424.5 | 142 |
| 22 | Ireland | 15 | 420.0 | 141 |
| 23 | Spain | 126 | 416.0 | 140 |
| 24 | Sweden | 184 | 413.0 | 140 |
| 25 | Brazil | 21 | 413.0 | 140 |
| 26 | Mexico | 11 | 413.0 | 140 |
| 27 | Iran | 5 | 413.0 | 140 |
| 28 | Micronesia | 2 | 412.5 | 140 |
| 29 | Australia | 79 | 412.0 | 139 |
| 30 | Luxembourg | 5 | 412.0 | 139 |
| 31 | Czech_Republic | 7 | 409.0 | 139 |
| 32 | Romania | 3 | 409.0 | 139 |
| 33 | China | 39 | 407.0 | 139 |
| 34 | Cyprus | 10 | 406.5 | 139 |
| 35 | Malaysia | 4 | 401.0 | 138 |
| 36 | India | 58 | 399.5 | 137 |
| 37 | Finland | 194 | 397.0 | 137 |
| 38 | Korea_South | 41 | 395.0 | 137 |
| 39 | Israel | 19 | 394.0 | 137 |
| 40 | Netherlands | 343 | 393.0 | 136 |
| 41 | Yugoslavia | 3 | 393.0 | 136 |
| 42 | Iceland | 3 | 392.0 | 136 |
| 43 | United_States | 996 | 390.0 | 136 |
| 44 | Thailand | 12 | 389.0 | 136 |
| 45 | Italy | 77 | 388.0 | 136 |
| 46 | Japan | 32 | 376.5 | 134 |
| 47 | Greece | 164 | 375.5 | 134 |
| 48 | Hong_Kong | 17 | 374.0 | 133 |
| 49 | Slovakia | 3 | 372.0 | 133 |
| 50 | Bosnia_and_Herzegovina | 8 | 369.5 | 133 |
| 51 | New_Zealand | 15 | 369.0 | 133 |
| 52 | Turkey | 43 | 365.0 | 132 |
| 53 | South_Africa | 42 | 365.0 | 132 |
| 54 | Philippines | 21 | 361.0 | 131 |
| 55 | Cuba | 2 | 345.5 | 129 |
| 56 | Tunisia | 3 | 331.0 | 127 |
| 57 | Chile | 3 | 329.0 | 126 |
| 58 | Singapore | 19 | 320.0 | 125 |
| 59 | Lithuania | 37 | 275.0 | 119 |
| 60 | Dominican_Republic | 11 | 153.0 | 102 |
Total n = 3782 (only countries with at least 2 scores are included)
Per country, the median of scores (expressed in protonorms) across a large number of high-range I.Q. tests is computed. Countries are ranked by median protonorm, and then by number of scores (n).
| Rank | Country | n | med. prot. | I.Q. (σ = 15) |
|---|---|---|---|---|
| 1 | China | 3 | 537.0 | 158 |
| 2 | Cambodia | 6 | 500.0 | 154 |
| 3 | Slovenia | 3 | 500.0 | 154 |
| 4 | Korea_South | 4 | 484.0 | 152 |
| 5 | Belgium | 81 | 453.0 | 147 |
| 6 | Spain | 52 | 453.0 | 147 |
| 7 | Poland | 26 | 453.0 | 147 |
| 8 | Malta | 21 | 453.0 | 147 |
| 9 | Serbia | 8 | 453.0 | 147 |
| 10 | Canada | 86 | 447.5 | 147 |
| 11 | Austria | 6 | 446.5 | 146 |
| 12 | Cyprus | 4 | 443.5 | 146 |
| 13 | Denmark | 21 | 443.0 | 146 |
| 14 | Germany | 100 | 440.0 | 145 |
| 15 | Portugal | 31 | 440.0 | 145 |
| 16 | United_Kingdom | 107 | 433.0 | 143 |
| 17 | Switzerland | 13 | 433.0 | 143 |
| 18 | Lebanon | 8 | 433.0 | 143 |
| 19 | Russia | 3 | 430.0 | 143 |
| 20 | Norway | 31 | 428.0 | 143 |
| 21 | Bulgaria | 8 | 424.0 | 142 |
| 22 | Micronesia | 2 | 422.5 | 141 |
| 23 | Australia | 41 | 420.0 | 141 |
| 24 | Finland | 134 | 419.5 | 141 |
| 25 | Iran | 3 | 418.0 | 141 |
| 26 | Sweden | 111 | 413.0 | 140 |
| 27 | Brazil | 15 | 413.0 | 140 |
| 28 | Ireland | 5 | 413.0 | 140 |
| 29 | France | 61 | 412.0 | 139 |
| 30 | Luxembourg | 3 | 412.0 | 139 |
| 31 | Mexico | 6 | 403.5 | 138 |
| 32 | Czech_Republic | 4 | 402.5 | 138 |
| 33 | Malaysia | 2 | 402.0 | 138 |
| 34 | United_States | 575 | 397.0 | 137 |
| 35 | Hong_Kong | 13 | 393.0 | 136 |
| 36 | Italy | 35 | 393.0 | 136 |
| 37 | Thailand | 7 | 393.0 | 136 |
| 38 | Yugoslavia | 3 | 393.0 | 136 |
| 39 | Iceland | 3 | 392.0 | 136 |
| 40 | Israel | 11 | 387.0 | 135 |
| 41 | New_Zealand | 9 | 383.0 | 134 |
| 42 | Greece | 90 | 380.0 | 134 |
| 43 | India | 27 | 380.0 | 134 |
| 44 | Bosnia_and_Herzegovina | 7 | 375.0 | 133 |
| 45 | Philippines | 14 | 370.0 | 132 |
| 46 | Netherlands | 221 | 368.0 | 131 |
| 47 | Japan | 12 | 367.0 | 131 |
| 48 | Argentina | 3 | 367.0 | 131 |
| 49 | Turkey | 34 | 361.0 | 130 |
| 50 | South_Africa | 19 | 360.0 | 130 |
| 51 | Lithuania | 5 | 340.0 | 127 |
| 52 | Chile | 2 | 336.0 | 126 |
| 53 | Singapore | 13 | 300.0 | 121 |
Total n = 2112 (only countries with at least 2 scores are included)
Most of the country names hyper-refer to images of those countries' stamps; these are scans of stamps actually received in correspondence with test candidates from the countries in question, in many cases in the period before Internet and e-mail become dominant.
This table ranks the countries of origin of 1318 scores on high-range intelligence tests designed and scored by Paul Cooijmans. Countries are ranked first by weighted median protonorm and then by number of scores from that country. The I.Q.s in the table are based on the current (2008) norming of protonorms to I.Q. Countries with two or more scores are included in their own right, and countries with only one score are included in "Remaining countries".
The tests used are mentioned under the table; For each test, the median protonorm scores per country were determined, after which for each country the weighted median across the tests was calculated.
| Rank | Country | Protonorm | I.Q. | # scores |
|---|---|---|---|---|
| 1 | Cambodia | 500 | 157 | 6 |
| 2 | Korea, South | 497 | 156 | 2 |
| 3 | New Zealand | 491 | 156 | 2 |
| 4 | Slovenia | 487 | 155 | 3 |
| 5 | Denmark | 480 | 153 | 10 |
| 6 | Serbia and Montenegro | 473 | 152 | 5 |
| 7 | Canada | 459 | 150 | 45 |
| 8 | Germany | 453 | 149 | 46 |
| 9 | Iran | 452 | 149 | 2 |
| 10 | Malta | 450 | 148 | 12 |
| 11 | Belgium | 447 | 147 | 45 |
| 12 | Poland | 442 | 147 | 14 |
| 13 | Portugal | 440 | 146 | 16 |
| 14 | Switzerland | 440 | 146 | 7 |
| 15 | Israel | 433 | 145 | 9 |
| 16 | Austria | 432 | 145 | 3 |
| 17 | United Kingdom | 430 | 144 | 73 |
| 18 | France | 424 | 143 | 44 |
| 19 | Australia | 423 | 143 | 23 |
| 20 | Remaining countries | 414 | 142 | 9 |
| 21 | Spain | 413 | 141 | 28 |
| 22 | Norway | 413 | 141 | 26 |
| 23 | Brazil | 413 | 141 | 14 |
| 24 | Finland | 412 | 140 | 76 |
| 25 | Sweden | 412 | 140 | 73 |
| 26 | Luxembourg | 412 | 140 | 3 |
| 27 | Greece | 409 | 140 | 29 |
| 28 | Netherlands | 403 | 139 | 96 |
| 29 | United States | 395 | 139 | 328 |
| 30 | Mexico | 394 | 139 | 3 |
| 31 | Yugoslavia | 393 | 138 | 3 |
| 32 | Bosnia and Herzegovina | 392 | 137 | 5 |
| 33 | Hong Kong | 389 | 137 | 6 |
| 34 | Thailand | 389 | 137 | 4 |
| 35 | Italy | 384 | 135 | 17 |
| 36 | Cyprus | 380 | 134 | 3 |
| 37 | Japan | 374 | 134 | 5 |
| 38 | Argentina | 367 | 132 | 3 |
| 39 | Turkey | 359 | 130 | 23 |
| 40 | Lithuania | 335 | 128 | 2 |
| 41 | South Africa | 333 | 128 | 5 |
| 42 | India | 308 | 124 | 6 |
| 43 | Singapore | 287 | 121 | 11 |
The "Remaining countries" are: Chile, China, Cuba, Hungary, Iceland, Malaysia, Philippines, Romania and Russia. Yugoslavia has meanwhile fallen apart, but in the absence of other information on the origin of those candidates the old name is used in this report.
The tests used are: Cartoons of Shock, Cooijmans Intelligence Test Forms 1 and 2, De Laatste Test, The Final Test, Genius Association Test, Isis Test, Low Countries Aptitude Test, Lieshout International Mesospheric Intelligence Test, The Nemesis Test, Numbers, Odds, Test For Genius (Long, Short, French, Netherlandic and Revision 2004), The Test To End All Tests, The Sargasso Test, Test of Shock and Awe, Spatial Insight Test, Space, Time and Hyperspace, Bonsai Test, Numerical Insight Test, Reason, and Qoymans Multiple-Choice #4.
The correlation of the ranks in this table with the countries' national average I.Q.s published by Lynn and Vanhanen in "I.Q. and the Wealth of Nations" is -.227 (which is significant if the number of used scores is considered). Since it concerns ranks, this must be understood as +.227 in terms of actual correlation of test scores. This is typical for the correlation with national I.Q.s found in the statistical reports for the individual tests.
This report gives the weighted average IQs of a number of countries over a number of normed tests, to wit the QMC (all versions), Test of Shock and Awe, Spatial Insight Test, Test For Genius (all versions), Space, Time and Hyperspace, Bonsai Test, CIT (Forms 1 and 2), Final Test, Cartoons of Shock, COLT, Laatste Test, GAT, KIT, LIMIT, Nemesis Test, Numbers, Odds, Psychometric Qrosswords, Reason and The Test To End All Tests.
For each test the mean I.Q.s were used of countries with at least two testees. The below table contains the countries that showed up with an average on at least two tests, ranked first by I.Q. and then by number of scores from that country. Countries thus excluded from this table include Switzerland, Hong Kong, Slovenia, Argentina, Singapore, Iran and China (there may be more that didn't show up at all). Those countries may appear in the table in a later analysis.
| Rank | Country | Mean I.Q. (SD=15) | # scores |
|---|---|---|---|
| 1 | Poland | 148.5 | 8 |
| 2 | Germany | 147.6 | 34 |
| 3 | United Kingdom | 145.5 | 61 |
| 4 | Malta | 145.5 | 4 |
| 5 | Denmark | 145 | 4 |
| 6 | Belgium | 144.8 | 26 |
| 7 | Finland | 144.6 | 63 |
| 8 | Spain | 144.3 | 4 |
| 9 | Brazil | 144.2 | 10 |
| 10 | Australia | 144.1 | 18 |
| 11 | Canada | 143.9 | 33 |
| 12 | Turkey | 143.3 | 6 |
| 13 | France | 142.7 | 27 |
| 14 | Sweden | 141.5 | 73 |
| 15 | Norway | 141.3 | 11 |
| 16 | Greece | 139.4 | 17 |
| 17 | United States | 139.2 | 331 |
| 18 | Israel | 138 | 4 |
| 19 | The Netherlands | 137.5 | 91 |
| 20 | Italy | 136.6 | 15 |
| 21 | Japan | 136.3 | 6 |
| 22.5 | Bosnia and Herzegovina | 135 | 4 |
| 22.5 | South Africa | 135 | 4 |
| 24 | India | 127.5 | 4 |
The correlation with the national average I.Q.s published by Lynn and Vanhanen is .45, which is significant beyond the level of .05. This is a low correlation, but for the first time a significant positive one; The correlations found in individual tests, which I report routinely, are usually around zero and/or not significant. So it may be that if you combine many tests and scores and thus catch in a wide range of countries, you do eventually find a significant positive correlation with national average I.Q.s.
This report focuses on the performance by country over seven tests that received substantial numbers of submissions: LTFG, CIT, Final Test, QMC #3, Numbers, Short TFG and STH. Combined it concerns 754 test submissions.
For each test a ranking is made by average score by country (only countries with at least two testees are listed). The top nine countries on each test get points descending from 9 to 1. These points are summed over the seven tests. The following table results:
| Rank | Country | Points |
|---|---|---|
| 1 | Finland | 45 |
| 2 | United Kingdom | 34 |
| 3 | Canada | 32 |
| 4 | Belgium | 31 |
| 5 | United States | 25 |
| 6 | Australia | 21 |
| 7 | Germany | 20 |
| 8 | Greece | 14 |
| 9.5 | Sweden | 13 |
| 9.5 | Netherlands | 13 |
| 11 | Norway | 11 |
| 12.5 | France | 9 |
| 12.5 | Denmark | 9 |
| 14 | Poland | 8 |
| 15 | Brazil | 7 |
| 16 | Slovenia | 6 |
| 17.5 | Italy | 4 |
| 17.5 | Malta | 4 |
| 19 | Bosnia and Herzegovina | 2 |
| 20 | Turkey | 1 |
For further information I computed the correlation between the points totals per country and the average national I.Q.s published by Lynnn and Vanhanen as .3 (not significant). The correlation between actual scores on the seven tests and national I.Q.s is .069 over 536 pairs (almost significant). So on the whole there appears to be no or very little correlation between performance on high-range tests and national average I.Q.s. This may be because of the restriction of range you get with high-range tests (only those who are quite intelligent to begin with take them, leaving less room for correlation); also, it may be that countries not only differ in average I.Q., but also in spread of I.Q..