I.Q. test scores by country

© Wed Mar 24 2021 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)
1Latvia11646.0174
2Croatia9510.0155
3Cambodia6500.0154
4Romania17483.0152
5Slovenia9453.0147
6Hungary13448.0147
7Belgium122447.0146
8Serbia11442.0145
9Russia7439.0145
10Lebanon18438.0145
11Spain150436.0144
12Portugal52435.0144
13Denmark34433.0143
14Bulgaria23433.0143
15Austria32430.0143
16Argentina9430.0143
17Czech_Republic10428.5143
18Malta41428.0143
19Micronesia2427.5142
20France101427.0142
21United_Kingdom222427.0142
22Germany249425.0142
23Canada196424.0142
24Poland46422.5141
25Nigeria15420.0141
26Ireland15419.0141
27India72414.0140
28China53414.0140
29Switzerland23413.0140
30Luxembourg5412.0139
31Sweden227409.0139
32Australia85405.0138
33Finland217395.0137
34Malaysia5395.0137
35Norway61394.0137
36Israel19394.0137
37Iran12394.0137
38Brazil31393.0136
39Yugoslavia3393.0136
40United_States1321392.0136
41Thailand12391.5136
42Italy98387.5135
43Mexico14387.0135
44Netherlands319385.0135
45Korea_South105379.0134
46Turkey68377.0134
47Greece177376.0134
48South_Africa53376.0134
49Japan36375.0134
50Bosnia_and_Herzegovina9375.0134
51Hong_Kong17374.0133
52Iceland8371.0133
53New_Zealand16368.5132
54Cyprus14368.0132
55Philippines32365.5132
56Slovakia21359.0131
57Kyrgyzstan4359.0131
58Cuba2358.5131
59Chile3329.0126
60Tunisia3323.0125
61Singapore18304.0123
62Lithuania42280.0119
63Dominican_Republic11153.0102

N = 4636 (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. Intelligence Quantifier by assessment
  37. Reflections In Peroxide
  38. Problems In Gentle Slopes of the third degree
  39. Combined Numerical and Spatial sections of Test For Genius - Revision 2010
  40. Reason Behind Multiple-Choice - Revision 2008
  41. The LAW - Letters And Words
  42. The Marathon Test
  43. Test For Genius - Revision 2010
  44. Associative LIMIT
  45. Numerical and spatial sections of The Marathon Test
  46. Labyrinthine LIMIT
  47. Psychometrically Activated Grids Acerbate Neuroticism
  48. Narcissus' last stand
  49. The Hammer Of Test-Hungry
  50. Qoymans Automatic Test #2
  51. Qoymans Multiple-Choice #1
  52. Qoymans Multiple-Choice #2
  53. Qoymans Multiple-Choice #3
  54. Test of Shock and Awe
  55. Spatial Insight Test
  56. Short Test For Genius
  57. Space, Time, and Hyperspace
  58. Verbal Insight Test
  59. Association and Analogies (German)
  60. Association and Analogies (French)
  61. A-10 - Early experimental association test in Netherlandic
  62. Reason Behind Multiple-Choice
  63. Long Test For Genius
  64. Long Test For Genius (French)
  65. Long Test For Genius (Netherlandic)
  66. Test For Genius - Revision 2004
  67. A-18 - Early experimental association test in Netherlandic
  68. Numbers
  69. Odds
  70. A-22 - Early experimental association test in Netherlandic, 27 items (maximum score 31)
  71. Numerical Insight Test
  72. Qoymans Automatic Test #1
  73. Qoymans Automatic Test #3
  74. Cooijmans On-Line Test
  75. Analogies of Long Test For Genius
  76. Analogies subtest of Long Test For Genius (Netherlandic)
  77. Analogies #1
  78. Analogies #1 (Netherlandic)
  79. Association subtest of Long Test For Genius
  80. Qoymans Multiple-Choice #4
  81. Association subtest of Long Test For Genius (Netherlandic)
  82. Reason
  83. KIT Intelligence Test - first attempts
  84. Bonsai Test
  85. Cooijmans Intelligence Test - Form 1
  86. Evens
  87. Cooijmans Intelligence Test - Form 2
  88. Giga Test
  89. Grail Test
  90. Analogies subtest of Long Test For Genius (French)
  91. Association subtest of Long Test For Genius (French)
  92. Problems In Gentle Slopes of the second degree
  93. The Final Test - Revision 2013
  94. Space, Time, and Hyperspace - Revision 2016
  95. Cooijmans Intelligence Test - Form 4
  96. The Alchemist Test
  97. Verbal section of Test For Genius - Revision 2016
  98. The Bonsai Test - Revision 2016
  99. Cooijmans Intelligence Test 5
  100. Test For Genius - Revision 2016
  101. Combined Numerical and Spatial sections of Test For Genius - Revision 2016
  102. The Piper's Test
  103. Dicing with death
  104. De Laatste Test - Herziening 2019
  105. Gliaweb Riddled Intelligence Test (old version)
  106. The Hammer Of Test-Hungry - Revision 2013
  107. Divine Psychometry