Verbal Insight Test statistics

© Paul Cooijmans


This test can no longer be taken but is now, in revised form, part of The Marathon Test.

Scores on Verbal Insight Test as of 11 February 2023

Contents type: Verbal.   Period: 2003-2004

173 *
273 *
329 *
332 *

Due to the small number of scores and their wide range, it has been decided to norm this test using z-score equation rather than the usual rank equation. See under the norm table for the relevant statistics. Effectively, this means that the used other tests have been combined into a compound variable.

Correlation of Verbal Insight Test with other mental ability tests

Test name n r
Qoymans Multiple-Choice #521.00
A Paranoiac's Torture: Intelligence Test Utilizing Diabolic Exactitude21.00
Cooijmans On-Line Test - Two-barrelled version21.00
Lieshout International Mesospheric Intelligence Test21.00
Numerical section of Test For Genius - Revision 201021.00
Reason - Revision 200821.00
Verbal section of Test For Genius - Revision 200421.00
Spatial section of Test For Genius - Revision 200421.00
Combined Numerical and Spatial sections of Test For Genius - Revision 201021.00
Reason Behind Multiple-Choice - Revision 200821.00
Test For Genius - Revision 201021.00
Associative LIMIT21.00
Test of Shock and Awe21.00
Test For Genius - Revision 200421.00
The Final Test - Revision 201321.00
The Hammer Of Test-Hungry - Revision 201321.00
Non-Verbal Cognitive Performance Examination (Xavier Jouve)30.97
Space, Time, and Hyperspace30.96
Long Test For Genius30.95
Analogies of Long Test For Genius30.94
Association subtest of Long Test For Genius30.94
The Final Test40.91
Strict Logic Sequences Exam I (Jonathan Wai)30.79
Genius Association Test30.77
Cartoons of Shock30.24
Unknown and miscellaneous tests30.08
Tests by Greg Grove (aggregate)3-0.81
International High IQ Society tests (aggregate)3-0.99
Qoymans Automatic Test #13-1.00
The Test To End All Tests2-1.00
Qoymans Automatic Test #22-1.00
Raven's Advanced Progressive Matrices (I.Q.)2-1.00
Strict Logic Sequences Exam II (Jonathan Wai)2-1.00
Sigma Test (Melão Hindemburg)2-1.00
Sequence Cave (Nuno Freitas)2-1.00

Weighted average of correlations: 0.419 (N = 84, weighted sum = 35)

Estimated g factor loading: 0.65

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 2 score pairs. All known pairs are used, including possible floor/ceiling scores or outliers.

Estimated loadings of Verbal Insight Test on particular item types

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.

Typeng loading of Verbal Insight Test on that type

N = 54

Compound tests have been left out of this table to avoid overlap.

Balanced g loading = 0.83

Correlation with national I.Q.'s of Verbal Insight Test

Correlation of this test with national average I.Q.'s published by Lynn and Vanhanen:

Correlation of Verbal Insight Test with personal details

Personalia n r
Year of birth4-0.75


With so few scores, reliability can not be meaningfully computed, but these numbers are shown here to demonstrate what results one may get thus.

Scores by age

Age class n Median score
35 to 391329.0
30 to 341332.0
20 or 211173.0

N = 4

Scores by year taken

Year taken n median score

Robustness and overall test quality

Item analysis

Item statistics are not published as that would help candidates. To detect bad items, answers and comments from candidates are studied, as well as, for each problem, the correlation with total score on the remaining problems (item-rest correlation) and the proportion of candidates getting it wrong (hardness of the item). Possible bad items are revised, replaced, or removed, possibly resulting in a revised version of the test.