2 | * |
4 | * |
5 | *** |
6 | ** |
7 | **** |
9 | ******* |
11 | * |
12 | ** |
13 | * |
14 | ** |
15 | ** |
16 | ** |
17 | * |
18 | ** |
19 | * |
21 | ** |
24 | * |
25 | * |
(Test index) Test name | n | r |
---|---|---|
(113) The Piper's Test | 4 | 0.95 |
(66) Test For Genius - Revision 2004 | 5 | 0.93 |
(107) The Alchemist Test | 7 | 0.88 |
(111) Test For Genius - Revision 2016 | 35 | 0.88 |
(32) Spatial section of The Marathon Test | 10 | 0.86 |
(7) The Final Test | 7 | 0.82 |
(15) Letters | 4 | 0.77 |
(43) Test For Genius - Revision 2010 | 7 | 0.76 |
(42) The Marathon Test | 9 | 0.75 |
(48) Narcissus' last stand | 11 | 0.74 |
(41) The LAW - Letters And Words | 4 | 0.73 |
(45) Numerical and spatial sections of The Marathon Test | 9 | 0.73 |
(26) Verbal section of Test For Genius - Revision 2004 | 11 | 0.72 |
(27) Spatial section of Test For Genius - Revision 2004 | 10 | 0.72 |
(114) Dicing with death | 5 | 0.72 |
(25) The Sargasso Test | 12 | 0.70 |
(29) Words | 4 | 0.70 |
(110) Cooijmans Intelligence Test 5 | 16 | 0.70 |
(18) The Nemesis Test | 10 | 0.69 |
(10) Genius Association Test | 17 | 0.68 |
(37) Problems In Gentle Slopes of the third degree | 10 | 0.67 |
(28) The Test To End All Tests | 13 | 0.67 |
(30) Verbal section of The Marathon Test | 10 | 0.66 |
(33) Problems In Gentle Slopes of the first degree | 5 | 0.65 |
(21) Psychometric Qrosswords | 5 | 0.65 |
(106) Cooijmans Intelligence Test - Form 4 | 17 | 0.64 |
(0) Test of the Beheaded Man | 11 | 0.62 |
(44) Associative LIMIT | 16 | 0.60 |
(36) Reflections In Peroxide | 13 | 0.60 |
(103) Problems In Gentle Slopes of the second degree | 13 | 0.60 |
(104) The Final Test - Revision 2013 | 8 | 0.59 |
(4) A Paranoiac's Torture: Intelligence Test Utilizing Diabolic Exactitude | 12 | 0.57 |
(109) The Bonsai Test - Revision 2016 | 14 | 0.56 |
(112) Combined Numerical and Spatial sections of Test For Genius - Revision 2016 | 33 | 0.54 |
(31) Numerical section of The Marathon Test | 10 | 0.54 |
(23) Gliaweb Riddled Intelligence Test - Revision 2011 | 15 | 0.53 |
(1) Cartoons of Shock | 8 | 0.53 |
(19) Numerical section of Test For Genius - Revision 2010 | 35 | 0.49 |
(39) Combined Numerical and Spatial sections of Test For Genius - Revision 2010 | 8 | 0.49 |
(3) Qoymans Multiple-Choice #5 | 17 | 0.47 |
(105) Space, Time, and Hyperspace - Revision 2016 | 35 | 0.47 |
(47) Psychometrically Activated Grids Acerbate Neuroticism | 5 | 0.45 |
(40) Reason Behind Multiple-Choice - Revision 2008 | 17 | 0.43 |
(35) Intelligence Quantifier by assessment | 12 | 0.42 |
(16) Lieshout International Mesospheric Intelligence Test | 17 | 0.39 |
(11) Isis Test | 13 | 0.34 |
(2) Cooijmans Intelligence Test - Form 3 | 21 | 0.32 |
(24) Reason - Revision 2008 | 17 | 0.31 |
(12) Cooijmans On-Line Test - Two-barrelled version | 10 | 0.28 |
(117) The Hammer Of Test-Hungry - Revision 2013 | 7 | -0.06 |
(5) Daedalus Test | 8 | -0.12 |
(46) Labyrinthine LIMIT | 4 | -0.14 |
Weighted average of correlations: 0.571 (N = 636, weighted sum = 362.91)
Conservatively estimated minimum g loading: 0.76
(Test index) Test name | n | r |
---|---|---|
(242) Unknown and miscellaneous tests | 15 | 0.22 |
Weighted average of correlations: 0.223 (N = 15, weighted sum = 3.35)
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.
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 | n | g loading of Verbal section of Test For Genius - Revision 2016 on that type |
---|---|---|
Verbal | 100 | 0.81 |
Numerical | 45 | 0.71 |
Spatial | 72 | 0.73 |
Logical | 25 | 0.42 |
Heterogeneous | 216 | 0.76 |
N = 458
Balanced g loading = 0.69
Country | n | median score |
---|---|---|
United_Kingdom | 2 | 17.5 |
Greece | 2 | 11.5 |
Canada | 2 | 9.0 |
United_States | 14 | 9.0 |
Correlation of this test with national average I.Q.'s published by Lynn and Vanhanen:
Personalia | n | r |
---|---|---|
Gifted Adult's Inventory of Aspergerisms | 6 | 0.96 |
P.S.I.A. True - Revision 2007 | 10 | 0.58 |
P.S.I.A. Extreme - Revision 2007 | 10 | 0.54 |
P.S.I.A. Introverted - Revision 2007 | 10 | 0.52 |
P.S.I.A. Orderly - Revision 2007 | 10 | 0.51 |
P.S.I.A. Deviance factor - Revision 2007 | 10 | 0.48 |
P.S.I.A. Ethics factor - Revision 2007 | 10 | 0.45 |
P.S.I.A. Aspergoid - Revision 2007 | 10 | 0.23 |
P.S.I.A. Neurotic - Revision 2007 | 10 | 0.16 |
P.S.I.A. Rational - Revision 2007 | 10 | 0.16 |
Educational level | 33 | 0.14 |
Father's educational level | 31 | 0.13 |
P.S.I.A. System factor - Revision 2007 | 10 | 0.08 |
Year of birth | 36 | 0.08 |
Sex | 36 | 0.08 |
Disorders (parents and siblings) | 32 | 0.05 |
Observed behaviour | 7 | 0.03 |
P.S.I.A. Rare - Revision 2007 | 10 | 0.01 |
P.S.I.A. Cruel - Revision 2007 | 10 | 0.01 |
Mother's educational level | 31 | 0.00 |
P.S.I.A. Cold - Revision 2007 | 10 | -0.00 |
P.S.I.A. Just - Revision 2007 | 10 | -0.16 |
Disorders (own) | 32 | -0.20 |
P.S.I.A. Antisocial - Revision 2007 | 10 | -0.28 |
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 | 0.76 (636) | NaN (0) |
5.5 | 0.70 (539) | 0.63 (19) |
10 | 0.66 (234) | 0.53 (324) |
14.5 | 0.35 (107) | 0.59 (455) |
19 | 0.64 (40) | 0.71 (565) |
48 | NaN (0) | 0.76 (636) |
Age class | n | median score |
---|---|---|
65 to 69 | 4 | 7.0 |
55 to 59 | 2 | 14.5 |
50 to 54 | 2 | 8.0 |
40 to 44 | 1 | 21.0 |
35 to 39 | 9 | 15.0 |
30 to 34 | 4 | 10.5 |
25 to 29 | 7 | 9.0 |
22 to 24 | 2 | 21.5 |
20 or 21 | 2 | 14.5 |
18 or 19 | 2 | 9.0 |
17 | 1 | 6.0 |
N = 36
Year taken | n | median score |
---|---|---|
2016 | 6 | 11.5 |
2017 | 5 | 6.0 |
2018 | 3 | 16.0 |
2019 | 11 | 9.0 |
2020 | 11 | 12.0 |
ryear taken × median score = 0.17 (N = 36)
Item statistics are not published as that would help future candidates. To detect bad items, answers and comments from candidates are studied, as well as, for each problem, the correlation with total score and the proportion of candidates getting it wrong (hardness of the item). Possible bad items are removed or revised, resulting in a revised version of the test.