I.Q. test scores by country

© Wed Jan 11 2023 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)
1Latvia11646.0175
2Croatia11498.0154
3Macau5497.0154
4Cambodia6487.0153
5Slovenia9453.0147
6Hungary13448.0147
7Argentina15444.0146
8Serbia11442.0146
9Belgium125439.0145
10Spain175435.0144
11Denmark34433.0144
12Lebanon17432.0144
13France99428.0143
14Austria33428.0143
15Malta41427.0143
16Bulgaria26427.0143
17Russia9426.0143
18Portugal60425.0143
19Germany261423.0142
21United_Kingdom239420.0142
21Canada208420.0142
21Norway68420.0142
23Poland45417.0141
24Kenya5415.0141
25China78414.0141
26Czech_Republic23412.0140
27Luxembourg5412.0140
28Ireland14411.5140
29Switzerland28409.0140
30Sweden231408.0140
31India73408.0140
32Nigeria18404.5139
33Australia90403.5139
34Romania51399.0138
35El_Salvador2397.5138
36Finland216395.0138
37Malaysia5395.0138
38United_States1447394.0137
39Israel19394.0137
40Iran23393.0137
41Yugoslavia3393.0137
42Thailand14391.5137
43Italy108387.5136
44Japan44387.0136
45Brazil31387.0136
46Singapore29387.0136
47Mexico14387.0136
48Netherlands292386.5136
49New_Zealand17383.0136
50Korea_South140380.5135
51Greece171376.0135
52Turkey75376.0135
53South_Africa51376.0135
54Bosnia_and_Herzegovina9375.0134
55Hong_Kong17374.0134
56Iceland8370.0134
57Cyprus15368.0133
58Philippines31365.0133
59Iraq3362.0132
60Slovakia22359.0132
61Cuba2350.5131
62Kyrgyzstan5343.0130
63Chile3329.0127
64Tunisia3323.0127
65Lithuania44280.0120
66Dominican_Republic14275.5120

N = 5014 (only countries with at least 2 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 Analogieëntest
  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 Analogieënproefwerk
  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
  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
  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. KIT Intelligence Test - first attempts
  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
  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
  109. A Relaxing Test

[Old versions of this report - More statistical reports on intelligence tests]