Statistics of Narcissus' last stand

© Paul Cooijmans

Scores on Narcissus' last stand as of 10 March 2021

Contents type: Verbal, numerical, spatial.   Period: 2010-present

2 **
3 *
6 *
7 *
8 *
14 *
16 *
18 **
20 *
22 *
25 ***
26 **
28 *
30 **
34 *
35 *
36 *
40 *
41 *

Correlation of Narcissus' last stand with other tests by I.Q. Tests for the High Range

(Test index) Test name n r
(118) Divine Psychometry40.99
(44) Associative LIMIT100.96
(30) Verbal section of The Marathon Test100.96
(42) The Marathon Test100.95
(113) The Piper's Test50.94
(1) Cartoons of Shock70.94
(28) The Test To End All Tests250.93
(21) Psychometric Qrosswords70.92
(45) Numerical and spatial sections of The Marathon Test100.92
(43) Test For Genius - Revision 201080.92
(36) Reflections In Peroxide250.91
(111) Test For Genius - Revision 2016120.90
(31) Numerical section of The Marathon Test100.89
(66) Test For Genius - Revision 200460.89
(32) Spatial section of The Marathon Test100.89
(0) Test of the Beheaded Man140.89
(16) Lieshout International Mesospheric Intelligence Test120.89
(106) Cooijmans Intelligence Test - Form 4110.88
(105) Space, Time, and Hyperspace - Revision 2016120.88
(112) Combined Numerical and Spatial sections of Test For Genius - Revision 2016110.88
(37) Problems In Gentle Slopes of the third degree100.87
(109) The Bonsai Test - Revision 2016120.86
(35) Intelligence Quantifier by assessment110.86
(26) Verbal section of Test For Genius - Revision 2004120.85
(40) Reason Behind Multiple-Choice - Revision 2008170.84
(27) Spatial section of Test For Genius - Revision 2004120.84
(10) Genius Association Test130.83
(47) Psychometrically Activated Grids Acerbate Neuroticism70.82
(4) A Paranoiac's Torture: Intelligence Test Utilizing Diabolic Exactitude120.81
(7) The Final Test70.81
(23) Gliaweb Riddled Intelligence Test - Revision 2011130.80
(107) The Alchemist Test70.80
(33) Problems In Gentle Slopes of the first degree80.79
(15) Letters40.78
(39) Combined Numerical and Spatial sections of Test For Genius - Revision 2010100.78
(41) The LAW - Letters And Words40.76
(3) Qoymans Multiple-Choice #5170.76
(24) Reason - Revision 2008170.76
(2) Cooijmans Intelligence Test - Form 3160.75
(110) Cooijmans Intelligence Test 590.74
(18) The Nemesis Test100.74
(114) Dicing with death70.73
(29) Words40.73
(25) The Sargasso Test130.73
(108) Verbal section of Test For Genius - Revision 2016120.72
(103) Problems In Gentle Slopes of the second degree90.71
(117) The Hammer Of Test-Hungry - Revision 201370.70
(104) The Final Test - Revision 201380.67
(12) Cooijmans On-Line Test - Two-barrelled version110.67
(11) Isis Test150.60
(68) Numbers40.58
(19) Numerical section of Test For Genius - Revision 2010160.57
(80) Qoymans Multiple-Choice #450.56
(5) Daedalus Test90.53

Weighted average of correlations: 0.814 (N = 567, weighted sum = 461.62)

Conservatively estimated minimum g loading: 0.90

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, including possible floor/ceiling scores or outliers.

Correlation of Narcissus' last stand with tests by others

(Test index) Test name n r
(239) Titan Test50.87
(242) Unknown and miscellaneous tests110.23

Weighted average of correlations: 0.425 (N = 16, weighted sum = 6.80)

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, including possible floor/ceiling scores or outliers.

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.

Estimated loadings of Narcissus' last stand 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 Narcissus' last stand on that type
Verbal1280.90
Numerical300.83
Spatial460.94
Logical260.82
Heterogeneous2180.90

N = 448

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

Balanced g loading = 0.88

National medians for Narcissus' last stand

Country n median score
Spain238.5
United_States1027.0
Canada222.0
Greece220.0
Germany213.5

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 with national I.Q.'s of Narcissus' last stand

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

Correlation of Narcissus' last stand with personal details

Personalia n r
P.S.I.A. Orderly - Revision 2007100.71
P.S.I.A. True - Revision 2007100.51
P.S.I.A. Ethics factor - Revision 2007100.39
P.S.I.A. Rational - Revision 2007100.34
Educational level240.30
P.S.I.A. System factor - Revision 2007100.28
Sex250.25
P.S.I.A. Neurotic - Revision 2007100.16
P.S.I.A. Just - Revision 2007100.15
Gifted Adult's Inventory of Aspergerisms100.13
Cooijmans Inventory of Neo-Marxist Attitudes50.09
P.S.I.A. Cold - Revision 2007100.08
P.S.I.A. Introverted - Revision 2007100.07
Observed behaviour80.04
Mother's educational level230.01
P.S.I.A. Cruel - Revision 200710-0.04
P.S.I.A. Aspergoid - Revision 200710-0.06
Year of birth25-0.06
P.S.I.A. Extreme - Revision 200710-0.08
P.S.I.A. Deviance factor - Revision 200710-0.11
Father's educational level23-0.12
Disorders (own)23-0.22
Disorders (parents and siblings)23-0.38
P.S.I.A. Rare - Revision 200710-0.53
P.S.I.A. Antisocial - Revision 200710-0.68

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)
00.90 (567)NaN (0)
170.75 (365)0.85 (94)
250.55 (250)0.90 (291)
300.67 (135)0.90 (438)

Reliability

Reliability is computed from the two subtest reliabilities using a form of the Spearman-Brown formula.

Error

Robustness and overall test quality

Further internal statistics

Further internal statistics are reported on subtest level (Test To End All Tests and Reflections In Peroxide)