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).
21 | * |
32 | ** |
33 | * |
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 | *** |
67 | *** |
68 | * |
69 | ** |
70 | * |
71 | *** |
72 | ** |
73 | * |
74 | * |
81 | * |
n = 238
32 | * |
33 | * |
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 | *** |
67 | * |
68 | * |
69 | ** |
70 | * |
71 | *** |
72 | ** |
73 | * |
74 | * |
81 | * |
n = 57
21 | * |
32 | * |
39 | ** |
40 | ***** |
41 | ***** |
42 | * |
44 | ******* |
45 | ***** |
46 | ***** |
47 | ** |
48 | *** |
50 | ** |
51 | *** |
52 | *** |
53 | ** |
54 | **** |
55 | * |
56 | * |
57 | * |
63 | * |
67 | ** |
Test name | n | r |
---|---|---|
Daedalus Test | 4 | 0.95 |
Graduate Record Examination | 5 | 0.86 |
Qoymans Automatic Test #2 | 4 | 0.77 |
Tests by Nicolas Elenas (aggregate) | 6 | 0.76 |
European I.Q. Test | 6 | 0.76 |
Qoymans Automatic Test #1 | 4 | 0.70 |
Scholastic Aptitude Test (old) | 8 | 0.63 |
The Nemesis Test | 8 | 0.63 |
Cattell Culture Fair | 12 | 0.63 |
Evens | 4 | 0.62 |
Cooijmans Intelligence Test - Form 1 | 7 | 0.53 |
Cito-toets | 5 | 0.51 |
Cartoons of Shock | 8 | 0.48 |
Psychometric Qrosswords | 5 | 0.42 |
Logima Strictica 36 (Robert Lato) | 16 | 0.42 |
Strict Logic Spatial Exam 48 (Jonathan Wai) | 4 | 0.36 |
Test of the Beheaded Man | 9 | 0.35 |
Cooijmans On-Line Test | 6 | 0.30 |
Raven's Advanced Progressive Matrices (I.Q.) | 6 | 0.29 |
Reason Behind Multiple-Choice | 11 | 0.28 |
Epiq Tests (aggregate) | 7 | 0.28 |
Verbal section of Test For Genius - Revision 2004 | 26 | 0.27 |
Bonsai Test | 6 | 0.24 |
Test For Genius - Revision 2004 | 26 | 0.23 |
Isis Test | 13 | 0.22 |
Problems In Gentle Slopes of the second degree | 4 | 0.22 |
Reason | 13 | 0.22 |
Test of Shock and Awe | 9 | 0.21 |
American College Testing program | 7 | 0.20 |
Cooijmans Intelligence Test - Form 2 | 20 | 0.18 |
Qoymans Multiple-Choice #5 | 6 | 0.18 |
Spatial section of Test For Genius - Revision 2004 | 26 | 0.17 |
Association subtest of Long Test For Genius | 14 | 0.17 |
Lieshout International Mesospheric Intelligence Test | 17 | 0.14 |
Raven's Advanced Progressive Matrices (raw) | 8 | 0.08 |
Mega Test (Ronald K. Hoeflin) | 4 | 0.08 |
The Test To End All Tests | 16 | 0.08 |
W-87 (International Society for Philosophical Enquiry) | 7 | 0.06 |
International High IQ Society tests (aggregate) | 22 | 0.06 |
Space, Time, and Hyperspace | 23 | 0.04 |
Unknown and miscellaneous tests | 57 | 0.02 |
Spatial Insight Test | 14 | 0.01 |
Spatial section of The Marathon Test | 6 | 0.01 |
The Sargasso Test | 11 | 0.00 |
Long Test For Genius | 9 | -0.04 |
Non-Verbal Cognitive Performance Examination (Xavier Jouve) | 20 | -0.06 |
Test of Inductive Reasoning / J.C.T.I. (Xavier Jouve) | 8 | -0.09 |
Numerical and spatial sections of The Marathon Test | 6 | -0.10 |
Reason Behind Multiple-Choice - Revision 2008 | 6 | -0.10 |
Strict Logic Sequences Exam I (Jonathan Wai) | 20 | -0.10 |
Tests by Greg Grove (aggregate) | 14 | -0.11 |
Qoymans Multiple-Choice #4 | 91 | -0.13 |
Letters | 4 | -0.13 |
Odds | 7 | -0.14 |
Cooijmans On-Line Test - Two-barrelled version | 4 | -0.14 |
Analogies of Long Test For Genius | 13 | -0.17 |
Sigma Test (Melão Hindemburg) | 10 | -0.17 |
KIT Intelligence Test - first attempts | 9 | -0.17 |
The Final Test | 22 | -0.19 |
Numerical section of The Marathon Test | 6 | -0.21 |
Numbers | 16 | -0.24 |
Reason - Revision 2008 | 6 | -0.26 |
Culture Fair Numerical Spatial Examination - Final version (Etienne Forsström) | 12 | -0.26 |
Problems In Gentle Slopes of the third degree | 5 | -0.28 |
The Marathon Test | 4 | -0.28 |
Words | 4 | -0.30 |
Verbal section of The Marathon Test | 4 | -0.36 |
Cooijmans Intelligence Test - Form 3 | 9 | -0.36 |
Qoymans Multiple-Choice #2 | 6 | -0.37 |
Qoymans Multiple-Choice #3 | 25 | -0.38 |
Wechsler Adult Intelligence Scales | 12 | -0.41 |
Titan Test (Ronald K. Hoeflin) | 8 | -0.41 |
Genius Association Test | 29 | -0.43 |
Qoymans Automatic Test #3 | 5 | -0.45 |
Narcissus' last stand | 4 | -0.47 |
Associative LIMIT | 7 | -0.48 |
Qoymans Multiple-Choice #1 | 7 | -0.48 |
Numerical Insight Test | 8 | -0.51 |
The Bonsai Test - Revision 2016 | 5 | -0.51 |
Cooijmans Intelligence Test - Form 4 | 4 | -0.53 |
Reflections In Peroxide | 4 | -0.56 |
916 Test (Laurent Dubois) | 5 | -0.65 |
Scholastic Aptitude Test (new) | 4 | -0.70 |
Short Test For Genius | 4 | -0.93 |
Chimera High Ability Riddle Test (Bill Bultas) | 4 | -0.97 |
Weighted average of correlations: 0.003 (N = 950)
Estimated g factor loading: 0.06
Test name | n | r |
---|---|---|
(242) Unknown and miscellaneous tests | 4 | 0.88 |
(80) Qoymans Multiple-Choice #4 | 11 | 0.09 |
Weighted average of correlations: 0.297 (N = 15)
Estimated g factor loading among females: 0.55
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 Cruel on that type |
---|---|---|
Verbal | 276 | -0.37 |
Numerical | 61 | -0.40 |
Spatial | 90 | 0.33 |
Logical | 37 | 0.41 |
Heterogeneous | 198 | 0.23 |
N = 662
Balanced g loading = 0.04
Country | n | mean score |
---|---|---|
Israel | 4 | 58.75 |
Korea_South | 3 | 55.00 |
Brazil | 7 | 53.86 |
Mexico | 3 | 53.33 |
Poland | 3 | 52.67 |
China | 3 | 52.00 |
Yugoslavia | 5 | 52.00 |
India | 12 | 50.83 |
Netherlands | 34 | 50.76 |
South_Africa | 4 | 49.50 |
Australia | 6 | 49.33 |
United_States | 98 | 49.14 |
Sweden | 17 | 47.47 |
Norway | 5 | 47.00 |
United_Kingdom | 13 | 45.92 |
Finland | 5 | 45.80 |
Germany | 12 | 45.25 |
Canada | 9 | 45.11 |
Belgium | 8 | 45.00 |
Spain | 6 | 44.17 |
Turkey | 4 | 44.00 |
Italy | 3 | 41.33 |
Correlation of this test with national average I.Q.'s published by Lynn and Vanhanen:
Personalia | n | r |
---|---|---|
PSIA Antisocial | 295 | 0.41 |
PSIA Just | 295 | 0.38 |
PSIA Aspergoid | 295 | 0.30 |
PSIA Cold | 295 | 0.26 |
Year of birth | 292 | 0.24 |
PSIA Neurotic | 295 | 0.23 |
Gifted Adult's Inventory of Aspergerisms | 18 | 0.20 |
Observed associative horizon | 10 | 0.14 |
Sex | 295 | 0.10 |
PSIA Rare | 295 | 0.08 |
Mother's educational level | 279 | 0.08 |
PSIA Deviance factor | 295 | 0.06 |
PSIA Introverted | 295 | 0.05 |
Disorders (own) | 292 | -0.03 |
PSIA System factor | 47 | -0.03 |
Father's educational level | 277 | -0.03 |
Disorders (parents and siblings) | 291 | -0.04 |
PSIA Orderly | 295 | -0.15 |
PSIA Rational | 295 | -0.19 |
Educational level | 292 | -0.19 |
PSIA True | 295 | -0.36 |
PSIA Extreme | 295 | -0.39 |
Cooijmans Inventory of Neo-Marxist Attitudes | 9 | -0.40 |
Observed behaviour | 19 | -0.48 |
PSIA Ethics factor | 295 | -0.76 |
Personalia | n | r |
---|---|---|
PSIA Antisocial | 57 | 0.46 |
PSIA Just | 57 | 0.40 |
PSIA Cold | 57 | 0.32 |
PSIA Aspergoid | 57 | 0.21 |
PSIA Neurotic | 57 | 0.09 |
PSIA System factor | 10 | 0.08 |
Educational level | 55 | 0.05 |
Mother's educational level | 47 | 0.05 |
Disorders (own) | 55 | 0.02 |
PSIA Rare | 57 | 0.02 |
PSIA Introverted | 57 | 0.01 |
Father's educational level | 47 | 0.01 |
Year of birth | 55 | 0.01 |
Disorders (parents and siblings) | 54 | 0.00 |
PSIA Deviance factor | 57 | 0.00 |
PSIA Orderly | 57 | -0.05 |
PSIA Rational | 57 | -0.22 |
PSIA True | 57 | -0.31 |
PSIA Extreme | 57 | -0.41 |
PSIA Ethics factor | 57 | -0.69 |
Personalia | n | r |
---|---|---|
PSIA Antisocial | 238 | 0.40 |
PSIA Just | 238 | 0.38 |
PSIA Aspergoid | 238 | 0.30 |
Year of birth | 237 | 0.30 |
PSIA Neurotic | 238 | 0.29 |
PSIA Cold | 238 | 0.22 |
Gifted Adult's Inventory of Aspergerisms | 15 | 0.22 |
Observed associative horizon | 9 | 0.15 |
Mother's educational level | 232 | 0.09 |
PSIA Rare | 238 | 0.09 |
PSIA Deviance factor | 238 | 0.06 |
PSIA Introverted | 238 | 0.04 |
Disorders (own) | 237 | -0.03 |
Disorders (parents and siblings) | 237 | -0.04 |
Father's educational level | 230 | -0.05 |
PSIA System factor | 37 | -0.05 |
PSIA Orderly | 238 | -0.16 |
PSIA Rational | 238 | -0.23 |
Educational level | 237 | -0.26 |
PSIA True | 238 | -0.37 |
PSIA Extreme | 238 | -0.38 |
Cooijmans Inventory of Neo-Marxist Attitudes | 8 | -0.42 |
Observed behaviour | 18 | -0.44 |
PSIA Ethics factor | 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 | 0.47 (308) |
---|---|
Below median | 0.28 (603) |
Above median | 0.14 (361) |
Above 3rd quartile | -0.30 (114) |
The g loading appears to be positive at the lower end and negative at the higher end of the scale. For an actual I.Q. test that would be bad, but for a personality test it is one of the possibilities to be observed.