I.Q. test scores by country

© Thu Feb 06 2025 Paul Cooijmans

National median protonorms and I.Q.'s

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).

RankCountry n med. prot.I.Q. (σ = 15)
1Latvia11640.0174
2Croatia11498.0154
3Macau5497.0154
4Cambodia6487.0153
5New_Zealand24457.0148
6Serbia30452.5148
7Slovenia9451.0147
8Hungary13449.0147
9Denmark33440.0145
10Russia15439.0145
11Argentina16438.5145
13Spain185433.0144
12Belgium128433.0144
15Norway76430.5144
14Austria34430.5144
16Bulgaria29430.0144
17Lebanon17429.0144
18Poland45425.0143
20United_Kingdom246421.5143
19Canada210421.5143
21China112421.0142
22France112418.0142
23Portugal60418.0142
24Luxembourg5416.0142
25Australia101415.0141
26Malta41414.0141
27Romania66413.5141
28India72412.5141
29Nigeria18412.5141
30Germany343412.0141
31Switzerland30410.0141
32Czech_Republic24409.5141
33Kenya8409.0140
34Ireland15408.0140
35Sweden230405.0140
36United_States1564400.0139
37Yugoslavia3400.0139
38Israel19396.0138
39Finland222395.0138
40Malaysia5395.0138
41Thailand15394.0138
42Iran24392.5138
44Japan61390.0137
43Hong_Kong19390.0137
46Turkey106389.0137
45Brazil31389.0137
47Mexico14388.5137
51Netherlands296387.0137
50Italy154387.0137
52Singapore29387.0137
48Bosnia_and_Herzegovina5387.0137
49Cuba3387.0137
53Korea_South163379.0136
54South_Africa51379.0136
55Greece183376.0135
56Iceland8373.5135
57Cyprus15371.0134
59Philippines31365.0134
58Iraq21365.0134
60Slovakia23356.0132
61Kyrgyzstan5345.0130
62Chile3336.0129
63Indonesia5321.0127
64Tunisia3308.0125
65Dominican_Republic15283.0121
66Lithuania49280.0121

N = 5525 (only countries with at least 3 scores are included)

Tests used

  1. Test of the Beheaded Man
  2. Cartoons of Shock
  3. Cooijmans Intelligence Test - Form 3
  4. Qoymans Multiple-Choice #5
  5. A Paranoiac's Torture: Intelligence Test Utilizing Diabolic Exactitude
  6. Daedalus Test
  7. De Laatste Test
  8. The Final Test
  9. Female Intelligence Test
  10. GliaWeb Raadselachtige Associatie- en Analogietest
  11. Genius Association Test
  12. Isis Test
  13. Cooijmans On-Line Test - Two-barrelled version
  14. Laaglandse Aanlegtest - Herziening 2016
  15. Low Countries Aptitude Test
  16. Letters
  17. Lieshout International Mesospheric Intelligence Test
  18. De Golfstroomtest
  19. The Nemesis Test
  20. Numerical section of Test For Genius - Revision 2010
  21. De Golfstroomtest - Herziening 2019
  22. Psychometric Qrosswords
  23. Gliaweb Raadselachtig Analogieproefwerk
  24. Gliaweb Riddled Intelligence Test - Revision 2011
  25. Reason - Revision 2008
  26. The Sargasso Test
  27. Verbal section of Test For Genius - Revision 2004
  28. Spatial section of Test For Genius - Revision 2004
  29. The Test To End All Tests
  30. Words
  31. Verbal section of The Marathon Test
  32. Numerical section of The Marathon Test
  33. Spatial section of The Marathon Test
  34. Problems In Gentle Slopes of the first degree
  35. De Roskam
  36. Only idiots
  37. Reflections In Peroxide
  38. Problems In Gentle Slopes of the third degree
  39. Random Feickery (Brandon Feick)
  40. Combined Numerical and Spatial sections of Test For Genius - Revision 2010
  41. Reason Behind Multiple-Choice - Revision 2008
  42. The LAW - Letters And Words
  43. The Marathon Test
  44. Test For Genius - Revision 2010
  45. Associative LIMIT
  46. Numerical and spatial sections of The Marathon Test
  47. Labyrinthine LIMIT
  48. Psychometrically Activated Grids Acerbate Neuroticism
  49. Narcissus' last stand
  50. The Hammer Of Test-Hungry
  51. Qoymans Automatic Test #2
  52. Qoymans Multiple-Choice #1
  53. Qoymans Multiple-Choice #2
  54. Qoymans Multiple-Choice #3 (batch scored by Paul Cooijmans)
  55. Test of Shock and Awe
  56. Spatial Insight Test
  57. Short Test For Genius
  58. Space, Time, and Hyperspace
  59. Verbal Insight Test
  60. Association and Analogies (German)
  61. Association and Analogies (French)
  62. A-10 - Early experimental association test in Netherlandic
  63. Reason Behind Multiple-Choice
  64. Long Test For Genius
  65. Long Test For Genius (French)
  66. Long Test For Genius (Netherlandic)
  67. Test For Genius - Revision 2004
  68. A-18 - Early experimental association test in Netherlandic
  69. Numbers
  70. Odds
  71. A-22 - Early experimental association test in Netherlandic, 27 items (maximum score 31)
  72. Numerical Insight Test
  73. Qoymans Automatic Test #1
  74. Qoymans Automatic Test #3
  75. Cooijmans On-Line Test
  76. Analogies of Long Test For Genius
  77. Analogies subtest of Long Test For Genius (Netherlandic)
  78. Analogies #1
  79. Analogies #1 (Netherlandic)
  80. Association subtest of Long Test For Genius
  81. Qoymans Multiple-Choice #4
  82. Association subtest of Long Test For Genius (Netherlandic)
  83. Reason
  84. The Gate
  85. Bonsai Test
  86. Cooijmans Intelligence Test - Form 1
  87. Evens
  88. Cooijmans Intelligence Test - Form 2
  89. Giga Test
  90. Grail Test
  91. Analogies subtest of Long Test For Genius (French)
  92. Association subtest of Long Test For Genius (French)
  93. Problems In Gentle Slopes of the second degree
  94. The Final Test - Revision 2013
  95. Space, Time, and Hyperspace - Revision 2016
  96. Cooijmans Intelligence Test - Form 4
  97. The Alchemist Test (Anas El Husseini)
  98. Verbal section of Test For Genius - Revision 2016
  99. The Bonsai Test - Revision 2016
  100. Cooijmans Intelligence Test 5
  101. Test For Genius - Revision 2016
  102. Combined Numerical and Spatial sections of Test For Genius - Revision 2016
  103. The Piper's Test
  104. Dicing with death
  105. De Laatste Test - Herziening 2019
  106. Gliaweb Riddled Intelligence Test (old version)
  107. The Hammer Of Test-Hungry - Revision 2013
  108. Divine Psychometry (Matthew Scillitani)
  109. A Relaxing Test (David Miller)

Number of tests used: 109

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