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).
18 | * |
22 | * |
25 | * |
29 | * |
30 | *** |
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 | ********* |
63 | ** |
64 | ** |
65 | ******* |
66 | ******* |
67 | ** |
68 | * |
69 | * |
70 | ** |
71 | ** |
73 | *** |
74 | * |
79 | * |
80 | * |
87 | * |
n = 238
18 | * |
22 | * |
25 | * |
29 | * |
31 | *** |
32 | ** |
33 | **** |
34 | ***** |
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 | ******** |
63 | ** |
64 | ** |
65 | ***** |
66 | ****** |
67 | * |
69 | * |
70 | ** |
71 | ** |
73 | *** |
74 | * |
79 | * |
80 | * |
87 | * |
n = 57
30 | *** |
31 | * |
34 | *** |
35 | *** |
36 | * |
37 | * |
39 | * |
40 | ***** |
41 | ***** |
43 | ** |
44 | * |
45 | * |
46 | * |
47 | *** |
48 | *** |
49 | * |
50 | **** |
52 | **** |
53 | *** |
55 | * |
56 | * |
58 | ** |
59 | * |
61 | * |
65 | ** |
66 | * |
67 | * |
68 | * |
Test name | n | r |
---|---|---|
Short Test For Genius | 4 | 0.94 |
Letters | 4 | 0.92 |
Graduate Record Examination | 5 | 0.68 |
Problems In Gentle Slopes of the second degree | 4 | 0.66 |
Mega Test (Ronald K. Hoeflin) | 4 | 0.61 |
Cito-toets | 5 | 0.60 |
Cattell Culture Fair | 12 | 0.51 |
Raven's Advanced Progressive Matrices (raw) | 8 | 0.48 |
Logima Strictica 36 (Robert Lato) | 16 | 0.48 |
916 Test (Laurent Dubois) | 5 | 0.43 |
Chimera High Ability Riddle Test (Bill Bultas) | 4 | 0.42 |
Words | 4 | 0.40 |
Tests by Greg Grove (aggregate) | 14 | 0.40 |
The Marathon Test | 4 | 0.39 |
European I.Q. Test | 6 | 0.37 |
Cooijmans Intelligence Test - Form 2 | 20 | 0.36 |
Scholastic Aptitude Test (old) | 8 | 0.35 |
Odds | 7 | 0.33 |
Strict Logic Spatial Exam 48 (Jonathan Wai) | 4 | 0.32 |
Cooijmans On-Line Test | 6 | 0.32 |
Sigma Test (Melão Hindemburg) | 10 | 0.30 |
Numbers | 16 | 0.28 |
Qoymans Automatic Test #1 | 4 | 0.26 |
Daedalus Test | 4 | 0.25 |
Qoymans Automatic Test #3 | 5 | 0.24 |
Cooijmans Intelligence Test - Form 1 | 7 | 0.22 |
The Nemesis Test | 8 | 0.19 |
KIT Intelligence Test - first attempts | 9 | 0.14 |
Verbal section of The Marathon Test | 4 | 0.12 |
Spatial Insight Test | 14 | 0.12 |
International High IQ Society tests (aggregate) | 22 | 0.12 |
Evens | 4 | 0.08 |
Non-Verbal Cognitive Performance Examination (Xavier Jouve) | 20 | 0.04 |
Numerical Insight Test | 8 | 0.02 |
Isis Test | 13 | 0.01 |
Cartoons of Shock | 8 | 0.00 |
Qoymans Automatic Test #2 | 4 | -0.02 |
Cooijmans On-Line Test - Two-barrelled version | 4 | -0.03 |
Space, Time, and Hyperspace | 23 | -0.03 |
The Final Test | 22 | -0.04 |
Verbal section of Test For Genius - Revision 2004 | 26 | -0.04 |
Qoymans Multiple-Choice #5 | 6 | -0.05 |
Wechsler Adult Intelligence Scales | 12 | -0.06 |
American College Testing program | 7 | -0.09 |
Qoymans Multiple-Choice #4 | 91 | -0.09 |
Unknown and miscellaneous tests | 57 | -0.10 |
Reason Behind Multiple-Choice | 11 | -0.10 |
Culture Fair Numerical Spatial Examination - Final version (Etienne Forsström) | 12 | -0.10 |
Lieshout International Mesospheric Intelligence Test | 17 | -0.14 |
Qoymans Multiple-Choice #1 | 7 | -0.14 |
Genius Association Test | 29 | -0.14 |
Qoymans Multiple-Choice #3 | 25 | -0.17 |
Spatial section of The Marathon Test | 6 | -0.17 |
Long Test For Genius | 9 | -0.18 |
Test of the Beheaded Man | 9 | -0.19 |
Test of Shock and Awe | 9 | -0.20 |
The Sargasso Test | 11 | -0.21 |
Test of Inductive Reasoning / J.C.T.I. (Xavier Jouve) | 8 | -0.22 |
Test For Genius - Revision 2004 | 26 | -0.25 |
Reason | 13 | -0.26 |
Analogies of Long Test For Genius | 13 | -0.29 |
Spatial section of Test For Genius - Revision 2004 | 26 | -0.32 |
Qoymans Multiple-Choice #2 | 6 | -0.33 |
Numerical and spatial sections of The Marathon Test | 6 | -0.34 |
Association subtest of Long Test For Genius | 14 | -0.35 |
Titan Test (Ronald K. Hoeflin) | 8 | -0.36 |
Reason Behind Multiple-Choice - Revision 2008 | 6 | -0.37 |
Strict Logic Sequences Exam I (Jonathan Wai) | 20 | -0.39 |
The Test To End All Tests | 16 | -0.40 |
Raven's Advanced Progressive Matrices (I.Q.) | 6 | -0.45 |
Epiq Tests (aggregate) | 7 | -0.48 |
Bonsai Test | 6 | -0.51 |
Numerical section of The Marathon Test | 6 | -0.51 |
Tests by Nicolas Elenas (aggregate) | 6 | -0.51 |
Reason - Revision 2008 | 6 | -0.53 |
Narcissus' last stand | 4 | -0.57 |
The Bonsai Test - Revision 2016 | 5 | -0.62 |
Cooijmans Intelligence Test - Form 4 | 4 | -0.63 |
Reflections In Peroxide | 4 | -0.64 |
Psychometric Qrosswords | 5 | -0.65 |
Cooijmans Intelligence Test - Form 3 | 9 | -0.65 |
Associative LIMIT | 7 | -0.76 |
W-87 (International Society for Philosophical Enquiry) | 7 | -0.88 |
Scholastic Aptitude Test (new) | 4 | -0.96 |
Problems In Gentle Slopes of the third degree | 5 | -1.00 |
Weighted average of correlations: -0.067 (N = 950)
Estimated g factor loading: -0.26
Test name | n | r |
---|---|---|
(80) Qoymans Multiple-Choice #4 | 11 | -0.15 |
(242) Unknown and miscellaneous tests | 4 | -0.68 |
Weighted average of correlations: -0.291 (N = 15)
Estimated g factor loading among females: -0.54
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 Aspergoid on that type |
---|---|---|
Verbal | 276 | -0.34 |
Numerical | 61 | -0.24 |
Spatial | 90 | -0.33 |
Logical | 37 | -0.38 |
Heterogeneous | 198 | -0.06 |
N = 662
Balanced g loading = -0.27
Country | n | mean score |
---|---|---|
Mexico | 3 | 61.33 |
Poland | 3 | 56.67 |
Italy | 3 | 55.33 |
Brazil | 7 | 52.86 |
South_Africa | 4 | 51.50 |
United_States | 98 | 51.21 |
China | 3 | 51.00 |
Sweden | 17 | 50.88 |
Israel | 4 | 50.50 |
Canada | 9 | 50.11 |
India | 12 | 49.42 |
Korea_South | 3 | 48.67 |
Norway | 5 | 47.80 |
Spain | 6 | 47.00 |
Netherlands | 34 | 46.35 |
Turkey | 4 | 46.25 |
United_Kingdom | 13 | 45.38 |
Germany | 12 | 45.00 |
Australia | 6 | 44.33 |
Yugoslavia | 5 | 42.60 |
Belgium | 8 | 39.75 |
Finland | 5 | 37.20 |
Correlation of this test with national average I.Q.'s published by Lynn and Vanhanen:
Personalia | n | r |
---|---|---|
PSIA Deviance factor | 295 | 0.87 |
Gifted Adult's Inventory of Aspergerisms | 18 | 0.77 |
PSIA Introverted | 295 | 0.73 |
PSIA Rare | 295 | 0.67 |
PSIA Neurotic | 295 | 0.59 |
PSIA System factor | 47 | 0.44 |
Observed associative horizon | 10 | 0.38 |
PSIA Cold | 295 | 0.38 |
PSIA Antisocial | 295 | 0.35 |
PSIA Cruel | 295 | 0.30 |
PSIA Just | 295 | 0.28 |
Disorders (own) | 292 | 0.27 |
Year of birth | 292 | 0.24 |
Disorders (parents and siblings) | 291 | 0.21 |
PSIA True | 295 | 0.16 |
Sex | 295 | 0.12 |
Mother's educational level | 279 | 0.11 |
PSIA Extreme | 295 | 0.10 |
Observed behaviour | 19 | 0.09 |
Father's educational level | 277 | 0.09 |
PSIA Rational | 295 | -0.03 |
PSIA Ethics factor | 295 | -0.06 |
PSIA Orderly | 295 | -0.10 |
Educational level | 292 | -0.27 |
Cooijmans Inventory of Neo-Marxist Attitudes | 9 | -0.56 |
Personalia | n | r |
---|---|---|
PSIA Deviance factor | 57 | 0.88 |
PSIA Introverted | 57 | 0.77 |
PSIA Rare | 57 | 0.71 |
PSIA Neurotic | 57 | 0.61 |
Disorders (parents and siblings) | 54 | 0.37 |
PSIA Antisocial | 57 | 0.35 |
Disorders (own) | 55 | 0.34 |
PSIA Cold | 57 | 0.26 |
Mother's educational level | 47 | 0.23 |
PSIA Cruel | 57 | 0.21 |
PSIA True | 57 | 0.19 |
PSIA System factor | 10 | 0.06 |
PSIA Extreme | 57 | 0.05 |
Father's educational level | 47 | 0.04 |
PSIA Just | 57 | 0.03 |
PSIA Orderly | 57 | 0.01 |
PSIA Ethics factor | 57 | -0.02 |
Educational level | 55 | -0.06 |
Year of birth | 55 | -0.13 |
PSIA Rational | 57 | -0.15 |
Personalia | n | r |
---|---|---|
PSIA Deviance factor | 238 | 0.87 |
Gifted Adult's Inventory of Aspergerisms | 15 | 0.77 |
PSIA Introverted | 238 | 0.71 |
PSIA Rare | 238 | 0.67 |
PSIA Neurotic | 238 | 0.62 |
PSIA System factor | 37 | 0.49 |
Observed associative horizon | 9 | 0.46 |
PSIA Cold | 238 | 0.39 |
PSIA Antisocial | 238 | 0.35 |
PSIA Just | 238 | 0.32 |
Year of birth | 237 | 0.32 |
PSIA Cruel | 238 | 0.30 |
Disorders (own) | 237 | 0.26 |
Disorders (parents and siblings) | 237 | 0.19 |
PSIA True | 238 | 0.15 |
Observed behaviour | 18 | 0.12 |
PSIA Extreme | 238 | 0.12 |
Mother's educational level | 232 | 0.10 |
Father's educational level | 230 | 0.09 |
PSIA Rational | 238 | -0.05 |
PSIA Ethics factor | 238 | -0.06 |
PSIA Orderly | 238 | -0.13 |
Educational level | 237 | -0.33 |
Cooijmans Inventory of Neo-Marxist Attitudes | 8 | -0.55 |
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 | 0.59 (227) |
---|---|
Below median | 0.32 (524) |
Above median | -0.46 (447) |
Above 3rd quartile | -0.38 (189) |
Positive in the bottom half, negative in the upper half, and slightly negative on the whole.