This test can no longer be taken. It has been succeeded by the English Long Test For Genius. Statistics of its subtests are in separate reports: Associatie; Analogieën; Space, Time and Hyperspace.
26 | * |
40 | * |
49 | * |
55 | * |
64 | *** |
74 | * |
76 | * |
83 | * |
88 | ** |
94 | * |
99 | * |
100 | * |
115 | * |
Test | # | cor |
---|---|---|
Space, Time and Hyperspace | 16 | 0.94 |
Analogies of Long Test For Genius (NL) | 16 | 0.92 |
Drenth number series | 5 | 0.89 |
Association subtest of Long Test For Genius (NL) | 16 | 0.79 |
Short Test For Genius | 7 | 0.74 |
Numbers | 12 | 0.69 |
Cattell Culture Fair | 8 | -0.08 |
Weighted average of correlations: 0.746
Conservatively estimated minimum g loading: 0.86
Country | # scores | Average score |
---|---|---|
Netherlands | 13 | 74.2 |
Belgium | 2 | 69 |
Personalia | # | cor |
---|---|---|
Mother's educational level | 4 | 0.68 |
Educational level | 4 | 0.67 |
Father's educational level | 3 | 0.5 |
Is male | 16 | 0.36 |
PSIA Deviance factor | 3 | -0.22 |
Year of birth | 7 | -0.78 |
PSIA Ethics factor | 3 | -0.88 |
Disorders (own) | 4 | -0.91 |
Disorders (parents and siblings) | 4 | -0.91 |
Correlation of this test with national average IQs published by Lynn and Vanhanen:
27 | * |
40 | * |
49 | * |
55 | * |
64 | *** |
74 | * |
76 | * |
83 | * |
88 | ** |
94 | * |
99 | * |
100 | * |
115 | * |
n = 13
40 | * |
55 | * |
64 | *** |
74 | * |
76 | * |
83 | * |
88 | ** |
99 | * |
100 | * |
115 | * |
n = 3
27 | * |
49 | * |
94 | * |
(Test index) Test name | n | r |
---|---|---|
(1) Cartoons of Shock | 2 | 1.00 |
(2) Cooijmans Intelligence Test - Form 3 | 2 | 1.00 |
(7) The Final Test | 2 | 1.00 |
(18) The Nemesis Test | 2 | 1.00 |
(25) The Sargasso Test | 2 | 1.00 |
(70) A-22 - Early experimental association test in Netherlandic, 27 items (maximum score 31) | 2 | 1.00 |
(78) Analogies #1 (Netherlandic) | 2 | 1.00 |
(84) Bonsai Test | 2 | 1.00 |
(35) Intelligence Quantifier by assessment | 8 | 0.97 |
(6) De Laatste Test | 3 | 0.96 |
(57) Space, Time, and Hyperspace | 16 | 0.94 |
(76) Analogies subtest of Long Test For Genius (Netherlandic) | 16 | 0.92 |
(85) Cooijmans Intelligence Test - Form 1 | 3 | 0.92 |
(81) Association subtest of Long Test For Genius (Netherlandic) | 16 | 0.79 |
(56) Short Test For Genius | 7 | 0.74 |
(28) The Test To End All Tests | 3 | 0.69 |
(68) Numbers | 12 | 0.69 |
Weighted average of correlations: 0.874
Conservatively estimated minimum g loading: 0.94
(Test index) Test name | n | r |
---|---|---|
(236) International High IQ Society Miscellaneous tests | 2 | 1.00 |
(209) Drenth number series | 5 | 0.89 |
(229) Mega Test | 3 | 0.56 |
(220) Cattell Culture Fair | 8 | -0.09 |
(233) Hoeflin Power Test | 3 | -0.12 |
(242) Unknown tests | 3 | -0.34 |
(239) Titan Test | 2 | -1.00 |
Weighted average of correlations: 0.155
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.
(Test index) Test name | n | r |
---|---|---|
(35) Intelligence Quantifier by assessment | 2 | 1.00 |
(57) Space, Time, and Hyperspace | 3 | 1.00 |
(81) Association subtest of Long Test For Genius (Netherlandic) | 3 | 0.99 |
(76) Analogies subtest of Long Test For Genius (Netherlandic) | 3 | 0.90 |
(68) Numbers | 3 | 0.42 |
Weighted average of correlations: 0.853
Conservatively estimated minimum g loading among females: 0.92
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 Long Test For Genius (Netherlandic) on that type |
---|---|
Verbal | 0.93 |
Numerical | 0.83 |
Spatial | 0.97 |
Heterogeneous | 0.95 |
Balanced g loading = 0.92
Country | n | median score |
---|---|---|
Netherlands | 13 | 83.0 |
Belgium | 2 | 69.0 |
Personalia | n | r |
---|---|---|
Observed behaviour | 5 | 0.65 |
Educational level | 7 | 0.59 |
Sex | 16 | 0.36 |
Mother's educational level | 5 | 0.09 |
Father's educational level | 5 | 0.08 |
P.S.I.A. Deviance factor | 3 | -0.22 |
Year of birth | 16 | -0.30 |
Disorders (own) | 5 | -0.74 |
Disorders (parents and siblings) | 5 | -0.74 |
P.S.I.A. Ethics factor | 3 | -0.88 |
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 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 both values to be lower than the test's full-range g loading.
Raw score | Upward g (n) | Downward g (n) |
---|---|---|
0 | 0.94 (100) | NaN (0) |
60 | 0.89 (70) | 0.84 (19) |
75 | 0.82 (39) | 0.89 (50) |
90 | 0.66 (22) | 0.86 (65) |
183 | NaN (0) | 0.94 (100) |
Internal statistics are reported on subtest level in the relevant reports. Reliability and robustness are estimated from the pertinent subtest values: