Contents type: Verbal, numerical, spatial, logical. Period: 2005-2007
| 13 | * |
| 14 | * |
| 15 | ** |
| 16 | * |
| 17 | *** |
| 18 | *** |
| Test name | n | r |
|---|---|---|
| The Nemesis Test | 3 | 1.00 |
| International High IQ Society tests (aggregate) | 3 | 0.98 |
| Culture Fair Numerical Spatial Examination - Final version (Etienne Forsström) | 3 | 0.93 |
| The Final Test | 3 | 0.83 |
| Reason Behind Multiple-Choice | 3 | 0.78 |
| Reason | 3 | 0.68 |
| Qoymans Multiple-Choice #4 | 6 | 0.68 |
| Spatial section of Test For Genius - Revision 2004 | 4 | 0.55 |
| Test For Genius - Revision 2004 | 4 | 0.54 |
| Verbal section of Test For Genius - Revision 2004 | 4 | 0.50 |
| Qoymans Multiple-Choice #3 (batch scored by Paul Cooijmans) | 4 | 0.05 |
| Strict Logic Spatial Exam 48 (Jonathan Wai) | 3 | -0.11 |
| Logima Strictica 36 (Robert Lato) | 3 | -0.28 |
| Lieshout International Mesospheric Intelligence Test | 3 | -0.33 |
Weighted average of correlations: 0.491 (N = 49)
Estimated g factor loading: 0.70
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 3 score pairs. All known pairs are used, including possible floor/ceiling scores or outliers.
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 #3 on that type |
|---|---|---|
| Verbal | 17 | 0.72 |
| Spatial | 10 | 0.30 |
| Logical | 3 | 0.83 |
| Heterogeneous | 3 | 1.00 |
N = 33
Compound tests have been left out of this table to avoid overlap.
Balanced g loading = 0.71
| Country | n | median score |
|---|---|---|
| Finland | 3 | 18.0 |
| United_States | 5 | 16.0 |
For reasons of privacy, only countries with 3 or more candidates are included in this table. Ranking is based on the medians, and then alphabetic.
Correlation of this test with national average I.Q.'s published by Lynn and Vanhanen, later Lynn and Becker:
| Personalia | n | r |
|---|---|---|
| Year of birth | 10 | 0.31 |
| Sex | 11 | 0.23 |
| Father's educational level | 8 | 0.21 |
| Disorders (parents and siblings) | 10 | 0.10 |
| Disorders (own) | 10 | 0.04 |
| Gifted Adult's Inventory of Aspergerisms | 4 | 0.03 |
| Educational level | 10 | -0.48 |
| Mother's educational level | 8 | -0.54 |
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 | 0.58 (6) |
|---|---|
| Below median | 0.63 (34) |
| Above median | 0.63 (43) |
| Above 3rd quartile | NaN (0) |