These statistics are from the version of the PSIA that was in use from 2003 to 2007, and was highly similar to the later Revision 2007. The scores are t-scores (mean = 50, σ = 10) normed on an earlier group (partly overlapping this one) so this group may not have an exact mean and σ of 50 and 10. An explanation of the scale can be found through the test's order page.
Explanatory and analytical remarks regarding the interpretation of the statistics are purposely largely avoided, so it is up to the reader to study the report carefully and thus obtain a clear impression of the test's validity — that is, "what it measures". Although the statistics sometimes reveal an almost chilling discriminative power, experience shows that explicitly observing that in a remark tends to evoke negative responses in persons who recognize themselves ("Your remark betrays that your are biased! The test only measures your personal biases!", et cetera).
31 | * |
32 | **** |
33 | ** |
34 | ** |
35 | ** |
36 | ***** |
37 | *** |
38 | **** |
39 | *** |
40 | ************** |
41 | ********** |
42 | ************** |
43 | ******* |
44 | *********** |
45 | *************** |
46 | ************** |
47 | ************* |
48 | ****************** |
49 | ********************* |
50 | ******************** |
51 | ****************** |
52 | ********************** |
53 | ****************** |
54 | ******************************* |
55 | ********************* |
56 | ********** |
57 | ********************* |
58 | **************** |
59 | ****** |
60 | ********* |
61 | ********* |
62 | ***** |
63 | ********** |
64 | ****** |
65 | ******* |
66 | ** |
67 | * |
68 | ** |
69 | **** |
72 | * |
75 | * |
76 | * |
n = 326
31 | * |
32 | **** |
33 | ** |
34 | ** |
35 | * |
36 | ***** |
37 | *** |
38 | **** |
39 | *** |
40 | ************ |
41 | ******** |
42 | *********** |
43 | ****** |
44 | ******** |
45 | ********** |
46 | ************* |
47 | *********** |
48 | ************** |
49 | ***************** |
50 | *************** |
51 | ************* |
52 | **************** |
53 | **************** |
54 | ************************** |
55 | **************** |
56 | ******* |
57 | ****************** |
58 | ************** |
59 | **** |
60 | ***** |
61 | ****** |
62 | **** |
63 | ********** |
64 | ***** |
65 | ***** |
66 | ** |
67 | * |
68 | ** |
69 | *** |
72 | * |
75 | * |
76 | * |
n = 78
35 | * |
40 | ** |
41 | ** |
42 | *** |
43 | * |
44 | *** |
45 | ***** |
46 | * |
47 | ** |
48 | **** |
49 | **** |
50 | ***** |
51 | ***** |
52 | ****** |
53 | ** |
54 | ***** |
55 | ***** |
56 | *** |
57 | *** |
58 | ** |
59 | ** |
60 | **** |
61 | *** |
62 | * |
64 | * |
65 | ** |
69 | * |
Test name | n | r |
---|---|---|
Chimera High Ability Riddle Test (Bill Bultas) | 5 | 0.77 |
The Bonsai Test - Revision 2016 | 5 | 0.74 |
Combined Numerical and Spatial sections of Test For Genius - Revision 2010 | 5 | 0.60 |
G-test (Nikos Lygeros) | 4 | 0.58 |
916 Test (Laurent Dubois) | 9 | 0.54 |
Problems In Gentle Slopes of the second degree | 5 | 0.53 |
Titan Test (Ronald K. Hoeflin) | 9 | 0.51 |
Cooijmans On-Line Test | 10 | 0.47 |
Raven's Advanced Progressive Matrices (raw) | 10 | 0.45 |
Numerical section of The Marathon Test | 9 | 0.43 |
Advanced Intelligence Test (Randy Myers) | 4 | 0.41 |
Numerical Insight Test | 12 | 0.40 |
Short Test For Genius | 8 | 0.40 |
Cito-toets | 8 | 0.39 |
Qoymans Multiple-Choice #3 | 68 | 0.39 |
Long Test For Genius | 25 | 0.38 |
Miller Analogies Test (raw; old version) | 5 | 0.37 |
Cooijmans Intelligence Test - Form 1 | 13 | 0.36 |
Numerical and spatial sections of The Marathon Test | 9 | 0.34 |
A Paranoiac's Torture: Intelligence Test Utilizing Diabolic Exactitude | 6 | 0.33 |
Numbers | 27 | 0.33 |
Genius Association Test | 45 | 0.32 |
Analogies of Long Test For Genius | 30 | 0.30 |
KIT Intelligence Test - first attempts | 11 | 0.29 |
Problems In Gentle Slopes of the third degree | 5 | 0.29 |
Odds | 11 | 0.29 |
The Final Test | 37 | 0.28 |
Tests by Jason Betts (aggregate) | 4 | 0.24 |
Qoymans Automatic Test #3 | 7 | 0.24 |
Spatial section of The Marathon Test | 9 | 0.23 |
Words | 8 | 0.22 |
The Marathon Test | 6 | 0.20 |
Queendom Culture Fair | 4 | 0.20 |
Drenth number series | 4 | 0.20 |
Strict Logic Sequences Exam I (Jonathan Wai) | 34 | 0.18 |
Analogies #1 | 5 | 0.16 |
Non-Verbal Cognitive Performance Examination (Xavier Jouve) | 35 | 0.16 |
Numerical section of Test For Genius - Revision 2010 | 8 | 0.16 |
Tests by Ivan Ivec (aggregate) | 6 | 0.15 |
Association subtest of Long Test For Genius | 35 | 0.14 |
Low Countries Aptitude Test | 5 | 0.11 |
Qoymans Multiple-Choice #1 | 11 | 0.11 |
Qoymans Multiple-Choice #4 | 108 | 0.10 |
Association subtest of Long Test For Genius (Netherlandic) | 4 | 0.09 |
Spatial Insight Test | 23 | 0.08 |
Mega Test (Ronald K. Hoeflin) | 6 | 0.08 |
Cooijmans Intelligence Test - Form 3 | 11 | 0.08 |
Reason Behind Multiple-Choice | 17 | 0.07 |
Unknown and miscellaneous tests | 84 | 0.06 |
Test of Shock and Awe | 14 | 0.06 |
Tests by Greg Grove (aggregate) | 19 | 0.06 |
Reason - Revision 2008 | 13 | 0.05 |
Letters | 7 | 0.05 |
Reason Behind Multiple-Choice - Revision 2008 | 13 | 0.04 |
Space, Time, and Hyperspace | 47 | 0.04 |
Associative LIMIT | 14 | 0.04 |
Omega Contemplative Items Pool (Tommy Smith) | 6 | 0.04 |
Qoymans Multiple-Choice #5 | 13 | 0.02 |
Association and Analogies (German) | 4 | 0.02 |
Spatial section of Test For Genius - Revision 2004 | 35 | 0.01 |
Wechsler Adult Intelligence Scales | 19 | -0.00 |
The LAW - Letters And Words | 5 | -0.00 |
Daedalus Test | 5 | -0.02 |
Cooijmans On-Line Test - Two-barrelled version | 8 | -0.02 |
Sigma Test (Melão Hindemburg) | 17 | -0.02 |
Qoymans Multiple-Choice #2 | 12 | -0.03 |
Culture Fair Numerical Spatial Examination - Final version (Etienne Forsström) | 16 | -0.03 |
International High IQ Society tests (aggregate) | 33 | -0.04 |
Reason | 20 | -0.05 |
American College Testing program | 10 | -0.05 |
Cooijmans Intelligence Test - Form 4 | 5 | -0.06 |
Cooijmans Intelligence Test - Form 2 | 24 | -0.06 |
Bonsai Test | 13 | -0.08 |
Lieshout International Mesospheric Intelligence Test | 27 | -0.08 |
Gliaweb Riddled Intelligence Test - Revision 2011 | 5 | -0.08 |
Epiq Tests (aggregate) | 14 | -0.09 |
Scholastic Aptitude Test (new) | 5 | -0.11 |
Tests by Nikolaos Soulios (aggregate) | 4 | -0.12 |
Verbal section of The Marathon Test | 6 | -0.12 |
Isis Test | 17 | -0.12 |
Test For Genius - Revision 2004 | 32 | -0.14 |
Cattell Verbal (also known as Cattell B) | 5 | -0.15 |
Scholastic Aptitude Test (old) | 9 | -0.16 |
Cartoons of Shock | 13 | -0.17 |
Logima Strictica 24 (Robert Lato) | 6 | -0.19 |
Evens | 7 | -0.20 |
Test of Inductive Reasoning / J.C.T.I. (Xavier Jouve) | 13 | -0.21 |
The Test To End All Tests | 23 | -0.21 |
Raven's Advanced Progressive Matrices (I.Q.) | 10 | -0.24 |
Cattell Culture Fair | 16 | -0.28 |
Logima Strictica 36 (Robert Lato) | 25 | -0.29 |
Strict Logic Sequences Exam II (Jonathan Wai) | 7 | -0.29 |
Verbal section of Test For Genius - Revision 2004 | 33 | -0.31 |
Strict Logic Spatial Exam 48 (Jonathan Wai) | 9 | -0.32 |
Test of the Beheaded Man | 10 | -0.34 |
Reflections In Peroxide | 5 | -0.35 |
Graduate Record Examination | 7 | -0.36 |
Narcissus' last stand | 5 | -0.37 |
Psychometric Qrosswords | 7 | -0.40 |
The Sargasso Test | 14 | -0.41 |
European I.Q. Test | 7 | -0.42 |
Qoymans Automatic Test #2 | 9 | -0.54 |
W-87 (International Society for Philosophical Enquiry) | 7 | -0.58 |
Analogies subtest of Long Test For Genius (Netherlandic) | 4 | -0.63 |
The Nemesis Test | 10 | -0.64 |
Tests by Nicolas Elenas (aggregate) | 8 | -0.65 |
Qoymans Automatic Test #1 | 10 | -0.66 |
The Hammer Of Test-Hungry - Revision 2013 | 5 | -0.69 |
Problems In Gentle Slopes of the first degree | 4 | -0.73 |
Gliaweb Riddled Intelligence Test (old version) | 5 | -0.80 |
Ultra Test (Ronald K. Hoeflin) | 5 | -0.87 |
The Final Test - Revision 2013 | 5 | -0.92 |
Weighted average of correlations: 0.046 (N = 1614)
Estimated g factor loading: 0.21
Test name | n | r |
---|---|---|
(53) Qoymans Multiple-Choice #3 | 6 | 0.60 |
(80) Qoymans Multiple-Choice #4 | 12 | 0.11 |
(242) Unknown and miscellaneous tests | 5 | -0.24 |
Weighted average of correlations: 0.164 (N = 23)
Estimated g factor loading among females: 0.40
These are estimated g factor loadings, but against homogeneous tests (containing only particular item types) as opposed to non-compound heterogeneous tests. Although tending to surprise the lay person, it is not uncommon for tests to have high loadings on item types they do not actually contain themselves. Such loadings reflect the empirical fact that most tests for mental abilities measure primarily g, regardless of their contents; that the major part of test score variance is caused by g, and only a minor part by factors germane to particular item types. It is of key importance to understand that this is a fact of nature, a natural phenomenon, and not something that was built into the tests by the test constructors.
Type | n | g loading of PSIA Ethics factor on that type |
---|---|---|
Verbal | 480 | 0.36 |
Numerical | 112 | 0.50 |
Spatial | 160 | 0.10 |
Logical | 61 | 0.16 |
Heterogeneous | 325 | -0.18 |
N = 1138
Balanced g loading = 0.19
Country | n | mean score |
---|---|---|
Mexico | 5 | 60.60 |
Turkey | 4 | 59.75 |
Austria | 3 | 57.33 |
Italy | 4 | 57.00 |
Spain | 6 | 55.17 |
Canada | 15 | 54.53 |
Finland | 8 | 53.50 |
Greece | 4 | 53.00 |
Belgium | 11 | 52.64 |
France | 4 | 52.25 |
United_Kingdom | 18 | 52.06 |
Sweden | 21 | 51.67 |
Germany | 19 | 51.42 |
United_States | 130 | 51.25 |
Australia | 6 | 50.50 |
Netherlands | 54 | 49.80 |
Yugoslavia | 5 | 49.40 |
Denmark | 4 | 49.25 |
South_Africa | 4 | 49.25 |
China | 3 | 48.67 |
Korea_South | 3 | 48.67 |
Poland | 5 | 48.00 |
India | 16 | 47.94 |
Brazil | 8 | 47.88 |
Norway | 7 | 47.14 |
Israel | 5 | 44.80 |
Correlation of this test with national average I.Q.'s published by Lynn and Vanhanen:
Personalia | n | r |
---|---|---|
PSIA True | 295 | 0.86 |
Observed behaviour | 30 | 0.49 |
PSIA Extreme | 295 | 0.43 |
PSIA Orderly | 295 | 0.24 |
PSIA System factor | 156 | 0.18 |
Educational level | 401 | 0.18 |
Observed associative horizon | 14 | 0.17 |
PSIA Rational | 295 | 0.17 |
PSIA Deviance factor | 404 | 0.11 |
PSIA Rare | 295 | 0.08 |
Gifted Adult's Inventory of Aspergerisms | 32 | 0.06 |
Disorders (own) | 401 | 0.05 |
PSIA Introverted | 295 | 0.05 |
Disorders (parents and siblings) | 400 | -0.02 |
Sex | 404 | -0.04 |
PSIA Aspergoid | 295 | -0.06 |
Father's educational level | 382 | -0.07 |
Mother's educational level | 384 | -0.09 |
PSIA Neurotic | 295 | -0.16 |
PSIA Cold | 295 | -0.16 |
Cooijmans Inventory of Neo-Marxist Attitudes | 10 | -0.22 |
PSIA Just | 295 | -0.22 |
Year of birth | 401 | -0.27 |
PSIA Antisocial | 295 | -0.30 |
PSIA Cruel | 295 | -0.76 |
Personalia | n | r |
---|---|---|
PSIA True | 57 | 0.83 |
PSIA Extreme | 57 | 0.36 |
PSIA Orderly | 57 | 0.18 |
Disorders (own) | 76 | 0.15 |
PSIA Rare | 57 | 0.13 |
PSIA Deviance factor | 78 | 0.13 |
Disorders (parents and siblings) | 75 | 0.02 |
PSIA Introverted | 57 | 0.02 |
PSIA Aspergoid | 57 | -0.02 |
PSIA Neurotic | 57 | -0.03 |
PSIA Rational | 57 | -0.05 |
Educational level | 76 | -0.05 |
PSIA System factor | 31 | -0.10 |
Father's educational level | 68 | -0.15 |
Mother's educational level | 67 | -0.18 |
Year of birth | 76 | -0.20 |
PSIA Just | 57 | -0.24 |
PSIA Cold | 57 | -0.28 |
PSIA Antisocial | 57 | -0.37 |
PSIA Cruel | 57 | -0.69 |
Personalia | n | r |
---|---|---|
PSIA True | 238 | 0.86 |
Observed behaviour | 27 | 0.48 |
PSIA Extreme | 238 | 0.44 |
PSIA Orderly | 238 | 0.26 |
PSIA System factor | 125 | 0.24 |
PSIA Rational | 238 | 0.23 |
Educational level | 325 | 0.23 |
Observed associative horizon | 12 | 0.15 |
PSIA Deviance factor | 326 | 0.11 |
PSIA Rare | 238 | 0.08 |
PSIA Introverted | 238 | 0.06 |
Disorders (own) | 325 | 0.04 |
Gifted Adult's Inventory of Aspergerisms | 29 | 0.01 |
Disorders (parents and siblings) | 325 | -0.03 |
Father's educational level | 314 | -0.06 |
PSIA Aspergoid | 238 | -0.06 |
Mother's educational level | 317 | -0.08 |
PSIA Cold | 238 | -0.14 |
PSIA Neurotic | 238 | -0.20 |
PSIA Just | 238 | -0.22 |
PSIA Antisocial | 238 | -0.29 |
Year of birth | 325 | -0.29 |
Cooijmans Inventory of Neo-Marxist Attitudes | 9 | -0.40 |
PSIA Cruel | 238 | -0.78 |
In parentheses the number of score pairs on which that estimated g factor loading is based. The goal of this is to verify the hypothesis that g becomes less important, accounts for a smaller proportion of the variance, at higher I.Q. levels. The mere fact of restricting the range like this also depresses the g loading compared to computing it over the test's full range, so it would be normal for these values to be lower than the test's full-range g loading.
Below 1st quartile | 0.10 (245) |
---|---|
Below median | -0.12 (815) |
Above median | 0.25 (887) |
Above 3rd quartile | 0.27 (411) |
The positive g loading is mainly in the upper half.