This was an automatically scored test that was in use during the early 2000s. A number of people reported their score voluntarily, so these scores may not be representative as many other scores must have remained unreported. Also, it was possible to take the test repeatedly. Item statistics were not collected.
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n = 36
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Test name | n | r |
---|---|---|
Cito-toets | 4 | 0.97 |
Emode I.Q. test | 3 | 0.95 |
Sigma Test (Melão Hindemburg) | 3 | 0.94 |
Raven's Advanced Progressive Matrices (I.Q.) | 3 | 0.90 |
Spatial Insight Test | 3 | 0.82 |
Psychometric Qrosswords | 3 | 0.57 |
Tests by Nicolas Elenas (aggregate) | 5 | 0.52 |
Qoymans Automatic Test #2 | 31 | 0.47 |
International High IQ Society tests (aggregate) | 6 | 0.22 |
Qoymans Multiple-Choice #2 | 8 | 0.21 |
Unknown and miscellaneous tests | 16 | 0.15 |
Space, Time, and Hyperspace | 6 | 0.02 |
Analogies #1 | 3 | 0.00 |
Evens | 4 | 0.00 |
Tests by Greg Grove (aggregate) | 6 | 0.00 |
Queendom Culture Fair | 3 | -0.03 |
Qoymans Multiple-Choice #4 | 5 | -0.04 |
Qoymans Multiple-Choice #3 | 7 | -0.13 |
The Final Test | 6 | -0.17 |
Qoymans Multiple-Choice #1 | 7 | -0.24 |
Strict Logic Sequences Exam I (Jonathan Wai) | 3 | -0.40 |
Genius Association Test | 3 | -0.85 |
Non-Verbal Cognitive Performance Examination (Xavier Jouve) | 4 | -0.98 |
Verbal Insight Test | 3 | -1.00 |
Weighted average of correlations: 0.170 (N = 145, weighted sum = 25)
Estimated g factor loading: 0.41
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 Qoymans Automatic Test #1 on that type |
---|---|---|
Verbal | 45 | -0.36 |
Numerical | 7 | -0.41 |
Spatial | 9 | 0.54 |
Heterogeneous | 38 | 0.60 |
N = 99
Balanced g loading = 0.09
Country | n | median score |
---|---|---|
Germany | 3 | 8.0 |
United_States | 4 | 7.5 |
Netherlands | 7 | 7.0 |
Correlation of this test with national average I.Q.'s published by Lynn and Vanhanen:
Personalia | n | r |
---|---|---|
Year of birth | 17 | 0.41 |
Observed behaviour | 5 | 0.32 |
Mother's educational level | 11 | 0.28 |
Disorders (parents and siblings) | 11 | 0.26 |
Gifted Adult's Inventory of Aspergerisms | 6 | 0.23 |
Father's educational level | 11 | 0.18 |
Sex | 44 | -0.00 |
Disorders (own) | 14 | -0.20 |
Educational level | 12 | -0.45 |
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 | 0.13 (20) |
---|---|
Below median | 0.18 (80) |
Above median | 0.31 (123) |
Above 3rd quartile | NaN (0) |