These statistics are from the version of the P.S.I.A. 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!", etcetera).
Contents type: Personality test other than for mental ability. Period: 2003-2007
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90 | * |
n = 237
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n = 57
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Test | n | r |
---|---|---|
The Sargasso Test | 5 | 0.73 |
Cooijmans On-Line Test | 5 | 0.69 |
Test of Shock and Awe | 9 | 0.59 |
Qoymans Multiple-Choice #5 | 5 | 0.55 |
Isis Test | 11 | 0.45 |
The Nemesis Test | 7 | 0.38 |
Reason Behind Multiple-Choice | 11 | 0.33 |
The Test To End All Tests | 13 | 0.31 |
KIT Intelligence Test - first attempts | 8 | 0.29 |
Reason Behind Multiple-Choice - Revision 2008 | 5 | 0.28 |
Cooijmans Intelligence Test - Form 2 | 20 | 0.28 |
Numerical Insight Test | 8 | 0.27 |
The Final Test | 22 | 0.24 |
Space, Time, and Hyperspace | 23 | 0.23 |
Long Test For Genius | 9 | 0.21 |
Analogies of Long Test For Genius | 13 | 0.18 |
Qoymans Multiple-Choice #4 | 91 | 0.18 |
Intelligence Quantifier by assessment | 15 | 0.15 |
Reason - Revision 2008 | 5 | 0.12 |
Reason | 13 | 0.11 |
Associative LIMIT Test | 6 | 0.09 |
Association subtest of Long Test For Genius | 14 | 0.09 |
Cartoons of Shock | 7 | 0.09 |
Spatial section of Test For Genius - Revision 2004 | 26 | 0.07 |
Lieshout International Mesospheric Intelligence Test | 16 | 0.05 |
Test For Genius - Revision 2004 | 26 | 0.04 |
Bonsai Test | 6 | 0.03 |
Verbal section of Test For Genius - Revision 2004 | 26 | -0.03 |
Spatial Insight Test | 14 | -0.05 |
Cooijmans Intelligence Test - Form 1 | 7 | -0.07 |
Qoymans Automatic Test #3 | 5 | -0.09 |
Odds | 7 | -0.10 |
Qoymans Multiple-Choice #3 | 25 | -0.20 |
Genius Association Test | 29 | -0.26 |
Numbers | 16 | -0.34 |
Qoymans Multiple-Choice #1 | 7 | -0.43 |
Test of the Beheaded Man | 5 | -0.67 |
Qoymans Multiple-Choice #2 | 6 | -0.68 |
Weighted average of correlations: 0.095
Conservatively estimated minimum g loading: 0.31
Ranking in above table is based on the unrounded correlations. All available data is present in this table, no tests are left out except for those with less than 5 score pairs. All known pairs are used to obtain the true, honest statistics; correlations have not been artificially inflated by leaving out ceiling scores, outliers or other anomalies.
Test | n | r |
---|---|---|
Graduate Record Examination | 5 | 0.79 |
Mysterium Entrance Exam | 12 | 0.53 |
Logima Strictica 36 | 16 | 0.37 |
Unknown tests | 22 | 0.31 |
Sigma Test | 10 | 0.22 |
Cattell Culture Fair | 10 | 0.21 |
Wechsler Adult Intelligence Scales | 9 | 0.17 |
Cito-toets | 5 | 0.16 |
916 Test | 5 | 0.08 |
American College Testing program | 7 | -0.05 |
International High IQ Society Miscellaneous tests | 11 | -0.08 |
Nonverbal Cognitive Performance Examination | 20 | -0.14 |
Scholastic Aptitude Test (old) | 8 | -0.14 |
Culture Fair Numerical Spatial Examination - Final version | 11 | -0.15 |
Raven's Advanced Progressive Matrices (raw) | 7 | -0.16 |
Strict Logic Sequences Exam I | 19 | -0.24 |
Titan Test | 8 | -0.33 |
Epiq Tests | 6 | -0.35 |
T.R.I. | 5 | -0.41 |
Raven's Advanced Progressive Matrices (I.Q.) | 5 | -0.57 |
W-87 | 6 | -0.91 |
Weighted average of correlations: 0.012
Ranking in above table is based on the unrounded correlations. All available data is present in this table, no tests are left out except for those with less than 5 score pairs. All known pairs are used to obtain the true, honest statistics; correlations have not been artificially inflated by leaving out ceiling scores, outliers or other anomalies.
Please be aware that correlations with these external tests are in most cases affected (depressed, typically) by one or more of the following: 1) Little overlap with the object test because of the much lower ceilings and inherent ceiling effects of the tests used in regular psychology; 2) Candidates reporting scores selectively, for instance only the higher ones while withholding lower ones; 3) Candidates reporting, or having been reported by psychometricians, incorrect scores.
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 | g loading of P.S.I.A. Cold on that type |
---|---|
Verbal | 0.22 |
Numerical | -0.36 |
Spatial | 0.31 |
Logical | 0.49 |
Heterogeneous | 0.48 |
There is no overlap between the categories in this table as a result of leaving out compound tests.
Balanced g loading = 0.22
Country | n | mean score |
---|---|---|
Mexico | 3 | 61.67 |
Bosnia_and_Herzegovina | 2 | 61.50 |
Argentina | 2 | 61.00 |
Austria | 2 | 57.50 |
Denmark | 2 | 56.50 |
New_Zealand | 2 | 56.00 |
Bulgaria | 2 | 55.50 |
Poland | 3 | 55.33 |
Canada | 9 | 55.22 |
Spain | 6 | 54.67 |
Italy | 3 | 54.00 |
Korea_South | 3 | 53.67 |
Sweden | 17 | 52.53 |
France | 2 | 51.50 |
China | 3 | 50.67 |
Germany | 12 | 50.17 |
Netherlands | 34 | 49.85 |
United_Kingdom | 13 | 49.85 |
Yugoslavia | 5 | 49.80 |
India | 12 | 49.50 |
United_States | 98 | 49.06 |
Australia | 6 | 48.50 |
Israel | 4 | 48.25 |
Norway | 5 | 47.20 |
Finland | 5 | 47.00 |
South_Africa | 4 | 46.50 |
Belgium | 8 | 46.00 |
Brazil | 7 | 45.43 |
Turkey | 4 | 45.25 |
Philippines | 2 | 43.00 |
Romania | 2 | 42.00 |
For reasons of privacy, only countries with 2 or more candidates are included in this table. Ranking is based on the unrounded means, and then alphabetic.
Personalia | n | r |
---|---|---|
P.S.I.A. System factor | 47 | 0.81 |
Observed associative horizon | 9 | 0.64 |
P.S.I.A. Introverted | 295 | 0.46 |
P.S.I.A. Aspergoid | 295 | 0.38 |
Gifted Adult's Inventory of Aspergerisms | 17 | 0.37 |
P.S.I.A. Cruel | 295 | 0.26 |
P.S.I.A. Rational | 295 | 0.25 |
P.S.I.A. Deviance factor | 295 | 0.24 |
P.S.I.A. Just | 295 | 0.23 |
Sex | 294 | 0.23 |
Year of birth | 292 | 0.09 |
P.S.I.A. Rare | 295 | 0.07 |
Mother's educational level | 279 | 0.06 |
P.S.I.A. Neurotic | 295 | 0.06 |
P.S.I.A. Orderly | 295 | 0.01 |
Observed behaviour | 21 | -0.03 |
Disorders (parents and siblings) | 291 | -0.06 |
Educational level | 292 | -0.06 |
Father's educational level | 277 | -0.07 |
P.S.I.A. True | 295 | -0.07 |
Disorders (own) | 292 | -0.07 |
P.S.I.A. Antisocial | 295 | -0.09 |
P.S.I.A. Ethics factor | 295 | -0.16 |
P.S.I.A. Extreme | 295 | -0.31 |
Personalia | n | r |
---|---|---|
P.S.I.A. System factor | 10 | 0.52 |
P.S.I.A. Introverted | 57 | 0.34 |
P.S.I.A. Cruel | 57 | 0.32 |
P.S.I.A. Aspergoid | 57 | 0.26 |
P.S.I.A. Just | 57 | 0.14 |
P.S.I.A. Deviance factor | 57 | 0.12 |
P.S.I.A. Orderly | 57 | 0.03 |
P.S.I.A. Rare | 57 | 0.02 |
P.S.I.A. Rational | 57 | 0.01 |
Educational level | 55 | 0.01 |
Disorders (parents and siblings) | 54 | -0.04 |
Disorders (own) | 55 | -0.04 |
P.S.I.A. Antisocial | 57 | -0.04 |
Father's educational level | 47 | -0.08 |
Mother's educational level | 47 | -0.09 |
P.S.I.A. Neurotic | 57 | -0.11 |
Gifted Adult's Inventory of Aspergerisms | 3 | -0.14 |
Year of birth | 55 | -0.19 |
P.S.I.A. True | 57 | -0.20 |
P.S.I.A. Ethics factor | 57 | -0.28 |
P.S.I.A. Extreme | 57 | -0.57 |
Personalia | n | r |
---|---|---|
P.S.I.A. System factor | 37 | 0.84 |
Observed associative horizon | 8 | 0.66 |
P.S.I.A. Introverted | 237 | 0.49 |
Gifted Adult's Inventory of Aspergerisms | 14 | 0.46 |
P.S.I.A. Aspergoid | 237 | 0.39 |
P.S.I.A. Deviance factor | 237 | 0.26 |
P.S.I.A. Rational | 237 | 0.25 |
P.S.I.A. Just | 237 | 0.24 |
P.S.I.A. Cruel | 237 | 0.22 |
Year of birth | 237 | 0.16 |
P.S.I.A. Neurotic | 237 | 0.14 |
Mother's educational level | 232 | 0.10 |
P.S.I.A. Rare | 237 | 0.06 |
P.S.I.A. Orderly | 237 | 0.02 |
Observed behaviour | 19 | 0.00 |
P.S.I.A. True | 237 | -0.03 |
Disorders (parents and siblings) | 237 | -0.04 |
Disorders (own) | 237 | -0.08 |
Father's educational level | 230 | -0.08 |
Educational level | 237 | -0.10 |
P.S.I.A. Antisocial | 237 | -0.11 |
P.S.I.A. Ethics factor | 237 | -0.13 |
P.S.I.A. Extreme | 237 | -0.24 |
Correlation of this test with national average I.Q.s published by Lynn and Vanhanen:
In parentheses the number of score pairs on which that estimated g factor loading is based. The Upward and Downward values are calculated including the pertinent score itself. It is normal that g factor loadings go down when the range is restricted like this, but careful study of the Upward and Downward columns may reveal possible scores below or above which the test loses validity.
Score | Upward (n) | Downward (n) |
---|---|---|
30 | 0.31 (546) | NaN (0) |
40 | 0.09 (481) | 0.78 (11) |
50 | -0.37 (247) | 0.34 (230) |
60 | -0.29 (42) | 0.34 (465) |
70 | NaN (0) | 0.31 (539) |
80 | NaN (0) | 0.32 (542) |
90 | NaN (0) | 0.31 (546) |