Test Voor Genialiteit - Statistics

© February 2007 Paul Cooijmans

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.

Norms

Scores

26 *
40 *
49 *
55 *
64 ***
74 *
76 *
83 *
88 **
94 *
99 *
100 *
115 *

Correlation with other tests

Test#cor
Space, Time and Hyperspace160.94
Analogies of Long Test For Genius (NL)160.92
Drenth number series50.89
Association subtest of Long Test For Genius (NL)160.79
Short Test For Genius70.74
Numbers120.69
Cattell Culture Fair8-0.08

Weighted average of correlations: 0.746

Conservatively estimated minimum g loading: 0.86

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 4 score pairs. All known pairs are used to obtain the true, honest statistics; correlations are not artificially inflated by leaving out ceiling scores, outliers or other anomalies.

National averages

Country# scoresAverage score
Netherlands1374.2
Belgium269

For reasons of privacy, only countries with 2 or more candidates are included in this table. Ranking is based on the unrounded averages.

Correlation with personal details

Personalia#cor
Mother's educational level40.68
Educational level40.67
Father's educational level30.5
Is male160.36
PSIA Deviance factor3-0.22
Year of birth7-0.78
PSIA Ethics factor3-0.88
Disorders (own)4-0.91
Disorders (parents and siblings)4-0.91

Correlation with national IQs

Correlation of this test with national average IQs published by Lynn and Vanhanen:

Most of this report was generated by software created 2002-present by Paul Cooijmans.

Additional statistics November 2014

© November 2014 Paul Cooijmans

Scores on Long Test For Genius (Netherlandic)

Contents type: Verbal, spatial.   Period: 1996-2005

27 *
40 *
49 *
55 *
64 ***
74 *
76 *
83 *
88 **
94 *
99 *
100 *
115 *

Scores by males

n = 13

40 *
55 *
64 ***
74 *
76 *
83 *
88 **
99 *
100 *
115 *

Scores by females

n = 3

27 *
49 *
94 *

Correlation of Long Test For Genius (Netherlandic) with other tests by Paul Cooijmans

(Test index) Test name n r
(1) Cartoons of Shock21.00
(2) Cooijmans Intelligence Test - Form 321.00
(7) The Final Test21.00
(18) The Nemesis Test21.00
(25) The Sargasso Test21.00
(70) A-22 - Early experimental association test in Netherlandic, 27 items (maximum score 31)21.00
(78) Analogies #1 (Netherlandic)21.00
(84) Bonsai Test21.00
(35) Intelligence Quantifier by assessment80.97
(6) De Laatste Test30.96
(57) Space, Time, and Hyperspace160.94
(76) Analogies subtest of Long Test For Genius (Netherlandic)160.92
(85) Cooijmans Intelligence Test - Form 130.92
(81) Association subtest of Long Test For Genius (Netherlandic)160.79
(56) Short Test For Genius70.74
(28) The Test To End All Tests30.69
(68) Numbers120.69

Weighted average of correlations: 0.874

Conservatively estimated minimum g loading: 0.94

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 to obtain the true, honest statistics; correlations have not been artificially inflated by leaving out ceiling scores, outliers or other anomalies.

Correlation of Long Test For Genius (Netherlandic) with tests by others

(Test index) Test name n r
(236) International High IQ Society Miscellaneous tests21.00
(209) Drenth number series50.89
(229) Mega Test30.56
(220) Cattell Culture Fair8-0.09
(233) Hoeflin Power Test3-0.12
(242) Unknown tests3-0.34
(239) Titan Test2-1.00

Weighted average of correlations: 0.155

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 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.

Correlation of Long Test For Genius (Netherlandic) with other tests by Paul Cooijmans - for females

(Test index) Test name n r
(35) Intelligence Quantifier by assessment21.00
(57) Space, Time, and Hyperspace31.00
(81) Association subtest of Long Test For Genius (Netherlandic)30.99
(76) Analogies subtest of Long Test For Genius (Netherlandic)30.90
(68) Numbers30.42

Weighted average of correlations: 0.853

Conservatively estimated minimum g loading among females: 0.92

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 to obtain the true, honest statistics; correlations have not been artificially inflated by leaving out ceiling scores, outliers or other anomalies.

Estimated loadings of Long Test For Genius (Netherlandic) 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.

Typeg loading of Long Test For Genius (Netherlandic) on that type
Verbal0.93
Numerical0.83
Spatial0.97
Heterogeneous0.95

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

Balanced g loading = 0.92

National medians for Long Test For Genius (Netherlandic)

Country n median score
Netherlands1383.0
Belgium269.0

For reasons of privacy, only countries with 2 or more candidates are included in this table. Ranking is based on the medians, and then alphabetic.

Correlation of Long Test For Genius (Netherlandic) with personal details

Personalia n r
Observed behaviour50.65
Educational level70.59
Sex160.36
Mother's educational level50.09
Father's educational level50.08
P.S.I.A. Deviance factor3-0.22
Year of birth16-0.30
Disorders (own)5-0.74
Disorders (parents and siblings)5-0.74
P.S.I.A. Ethics factor3-0.88

Correlation with national I.Q.'s of Long Test For Genius (Netherlandic)

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

Estimated g factor loadings upward and downward of particular scores

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 scoreUpward g (n)Downward g (n)
00.94 (100)NaN (0)
600.89 (70)0.84 (19)
750.82 (39)0.89 (50)
900.66 (22)0.86 (65)
183NaN (0)0.94 (100)

Internal statistics

Internal statistics are reported on subtest level in the relevant reports. Reliability and robustness are estimated from the pertinent subtest values: