Statistics of Narcissus' last stand

© Paul Cooijmans

Scores on Narcissus' last stand as of 16 September 2019

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

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

Correlation of Narcissus' last stand with other tests by Paul Cooijmans

(Test index) Test name n r
(69) Odds21.00
(77) Analogies #121.00
(113) The Piper's Test21.00
(114) Dicing with death21.00
(82) Reason30.99
(21) Psychometric Qrosswords50.97
(107) The Alchemist Test40.97
(1) Cartoons of Shock60.97
(30) Verbal section of The Marathon Test70.96
(42) The Marathon Test70.95
(44) Associative LIMIT70.95
(43) Test For Genius - Revision 201070.95
(87) Cooijmans Intelligence Test - Form 230.94
(28) The Test To End All Tests170.94
(15) Letters30.94
(41) The LAW - Letters And Words30.94
(29) Words30.94
(109) The Bonsai Test - Revision 201650.93
(36) Reflections In Peroxide170.92
(105) Space, Time, and Hyperspace - Revision 201670.92
(110) Cooijmans Intelligence Test 540.91
(40) Reason Behind Multiple-Choice - Revision 2008120.91
(26) Verbal section of Test For Genius - Revision 2004100.91
(112) Combined Numerical and Spatial sections of Test For Genius - Revision 201660.90
(62) Reason Behind Multiple-Choice30.90
(111) Test For Genius - Revision 201670.90
(45) Numerical and spatial sections of The Marathon Test80.90
(16) Lieshout International Mesospheric Intelligence Test90.89
(31) Numerical section of The Marathon Test80.88
(32) Spatial section of The Marathon Test80.88
(35) Intelligence Quantifier by assessment100.88
(106) Cooijmans Intelligence Test - Form 480.86
(37) Problems In Gentle Slopes of the third degree50.85
(66) Test For Genius - Revision 200450.85
(0) Test of the Beheaded Man100.84
(4) A Paranoiac's Torture: Intelligence Test Utilizing Diabolic Exactitude100.83
(47) Psychometrically Activated Grids Acerbate Neuroticism50.83
(3) Qoymans Multiple-Choice #5120.82
(27) Spatial section of Test For Genius - Revision 2004100.81
(7) The Final Test60.81
(24) Reason - Revision 2008120.78
(10) Genius Association Test80.78
(117) The Hammer Of Test-Hungry - Revision 201360.78
(68) Numbers30.77
(23) Gliaweb Riddled Intelligence Test - Revision 201180.76
(2) Cooijmans Intelligence Test - Form 3100.76
(39) Combined Numerical and Spatial sections of Test For Genius - Revision 201090.76
(103) Problems In Gentle Slopes of the second degree60.75
(25) The Sargasso Test90.74
(18) The Nemesis Test100.74
(11) Isis Test100.74
(33) Problems In Gentle Slopes of the first degree50.72
(108) Verbal section of Test For Genius - Revision 201670.70
(104) The Final Test - Revision 201360.69
(80) Qoymans Multiple-Choice #430.68
(12) Cooijmans On-Line Test - Two-barrelled version100.64
(19) Numerical section of Test For Genius - Revision 2010120.63
(46) Labyrinthine LIMIT30.60
(5) Daedalus Test70.59
(49) The Hammer Of Test-Hungry3-0.57

Weighted average of correlations: 0.827 (weighted sum: 343.41)

Conservatively estimated minimum g loading: 0.91

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.

Correlation of Narcissus' last stand with tests by others

(Test index) Test name n r
(220) Cattell Culture Fair21.00
(234) Strict Logic Sequences Exam I21.00
(239) Titan Test30.99
(242) Unknown and miscellaneous tests70.23

Weighted average of correlations: 0.615 (weighted sum: 8.61)

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.

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.

Typeg loading of Narcissus' last stand on that type
Verbal0.93
Numerical0.87
Spatial0.93
Logical0.87
Heterogeneous0.90

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

Balanced g loading = 0.90

National medians for Narcissus' last stand

Country n median score
United_States530.0
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
Observed associative horizon30.94
P.S.I.A. Neurotic70.76
P.S.I.A. True70.57
P.S.I.A. Aspergoid70.53
Gifted Adult's Inventory of Aspergerisms70.49
P.S.I.A. Introverted70.46
P.S.I.A. Ethics factor70.45
P.S.I.A. Just70.45
P.S.I.A. Cold70.40
Educational level160.40
P.S.I.A. Rare70.37
P.S.I.A. System factor60.36
Observed behaviour60.33
Sex170.29
P.S.I.A. Rational70.25
P.S.I.A. Deviance factor70.25
Mother's educational level150.19
P.S.I.A. Cruel70.13
P.S.I.A. Orderly70.00
Year of birth17-0.07
P.S.I.A. Antisocial7-0.08
Father's educational level15-0.21
Disorders (parents and siblings)15-0.36
Disorders (own)15-0.43
P.S.I.A. Extreme7-0.50

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)
00.91 (415)NaN (0)
110.74 (303)0.84 (69)
220.53 (220)0.89 (217)
330.70 (60)0.91 (328)
71NaN (0)0.91 (415)

Reliability

This 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)