These are statistics based on the scores on the tests by Ivan Ivec (aggregate) as reported by test candidates of I.Q. Tests for the High Range. Please keep the following in mind: As a result of candidates' tendency to report their higher scores while withholding lower ones, there may be an upward bias in the reported scores, while the possible correlation with other variables is reduced as a result of the restriction of range inherent to this incomplete reporting. Also, this report deals with a compound variable, wherein all the tests of a given author are combined. Such a compound variable, too, has reduced potential to correlate with any other variable because of the imperfect intercorrelations of its constituents.
124 | * |
128 | * |
132 | * |
133 | * |
136 | * |
137 | * |
139 | * |
143 | *** |
144.5 | * |
145 | * |
147 | *** |
148 | * |
149 | * |
150 | * |
152 | * |
154 | * |
155 | * |
156 | * |
157 | * |
160 | *** |
162 | * |
165 | * |
(Test index) Test name | n | r |
---|---|---|
(218) Raven's Advanced Progressive Matrices (I.Q.) | 4 | 0.99 |
(226) Logima Strictica 24 (Robert Lato) | 4 | 0.99 |
(260) Tests by Nikolaos Soulios (aggregate) | 6 | 0.97 |
(1) Cartoons of Shock | 5 | 0.97 |
(240) Strict Logic Spatial Exam 48 (Jonathan Wai) | 4 | 0.94 |
(225) Logima Strictica 36 (Robert Lato) | 8 | 0.94 |
(224) Test of Inductive Reasoning / J.C.T.I. (Xavier Jouve) | 5 | 0.92 |
(259) Tests by Theodosis Prousalis (aggregate) | 5 | 0.89 |
(43) Test For Genius - Revision 2010 | 7 | 0.87 |
(2) Cooijmans Intelligence Test - Form 3 | 13 | 0.86 |
(111) Test For Genius - Revision 2016 | 5 | 0.84 |
(0) Test of the Beheaded Man | 5 | 0.83 |
(258) Tests by Mislav Predavec (aggregate) | 7 | 0.83 |
(234) Strict Logic Sequences Exam I (Jonathan Wai) | 9 | 0.82 |
(223) Strict Logic Sequences Exam II (Jonathan Wai) | 7 | 0.79 |
(16) Lieshout International Mesospheric Intelligence Test | 8 | 0.71 |
(242) Unknown and miscellaneous tests | 23 | 0.68 |
(87) Cooijmans Intelligence Test - Form 2 | 4 | 0.65 |
(108) Verbal section of Test For Genius - Revision 2016 | 5 | 0.61 |
(28) The Test To End All Tests | 5 | 0.60 |
(26) Verbal section of Test For Genius - Revision 2004 | 8 | 0.58 |
(7) The Final Test | 5 | 0.58 |
(39) Combined Numerical and Spatial sections of Test For Genius - Revision 2010 | 9 | 0.56 |
(107) The Alchemist Test | 7 | 0.54 |
(103) Problems In Gentle Slopes of the second degree | 9 | 0.54 |
(19) Numerical section of Test For Genius - Revision 2010 | 15 | 0.51 |
(44) Associative LIMIT | 8 | 0.51 |
(215) Tests by Jason Betts (aggregate) | 12 | 0.51 |
(37) Problems In Gentle Slopes of the third degree | 5 | 0.51 |
(27) Spatial section of Test For Genius - Revision 2004 | 10 | 0.42 |
(23) Gliaweb Riddled Intelligence Test - Revision 2011 | 10 | 0.41 |
(106) Cooijmans Intelligence Test - Form 4 | 10 | 0.41 |
(3) Qoymans Multiple-Choice #5 | 9 | 0.37 |
(40) Reason Behind Multiple-Choice - Revision 2008 | 9 | 0.36 |
(10) Genius Association Test | 10 | 0.30 |
(24) Reason - Revision 2008 | 9 | 0.29 |
(36) Reflections In Peroxide | 6 | 0.29 |
(262) Tests by James Dorsey | 5 | 0.27 |
(110) Cooijmans Intelligence Test 5 | 6 | 0.25 |
(25) The Sargasso Test | 7 | 0.18 |
(18) The Nemesis Test | 5 | 0.18 |
(201) Wechsler Adult Intelligence Scales | 7 | 0.13 |
(57) Space, Time, and Hyperspace | 4 | 0.11 |
(112) Combined Numerical and Spatial sections of Test For Genius - Revision 2016 | 7 | 0.01 |
(109) The Bonsai Test - Revision 2016 | 6 | -0.05 |
(105) Space, Time, and Hyperspace - Revision 2016 | 7 | -0.11 |
(4) A Paranoiac's Torture: Intelligence Test Utilizing Diabolic Exactitude | 8 | -0.11 |
(31) Numerical section of The Marathon Test | 4 | -0.45 |
(12) Cooijmans On-Line Test - Two-barrelled version | 4 | -0.58 |
(45) Numerical and spatial sections of The Marathon Test | 4 | -0.70 |
(235) Nonverbal Cognitive Performance Examination (Xavier Jouve) | 4 | -0.71 |
(32) Spatial section of The Marathon Test | 4 | -0.77 |
Weighted average of correlations: 0.465 (N = 372, weighted sum = 172.86)
Conservatively estimated minimum g loading: 0.68
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.
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 Tests by Ivan Ivec (aggregate) on that type |
---|---|---|
Verbal | 42 | 0.69 |
Numerical | 19 | 0.56 |
Spatial | 33 | 0.44 |
Logical | 9 | 0.54 |
Heterogeneous | 110 | 0.63 |
N = 213
Compound tests have been left out of this table to avoid overlap.
Balanced g loading = 0.57
Country | n | median score |
---|---|---|
Korea_South | 2 | 154.5 |
Germany | 2 | 151.0 |
Romania | 2 | 148.0 |
United_States | 5 | 147.0 |
Austria | 2 | 138.5 |
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 of this test with national average I.Q.'s published by Lynn and Vanhanen:
Personalia | n | r |
---|---|---|
P.S.I.A. Just - Revision 2007 | 8 | 0.83 |
P.S.I.A. Orderly - Revision 2007 | 8 | 0.80 |
P.S.I.A. System factor - Revision 2007 | 8 | 0.80 |
P.S.I.A. Introverted - Revision 2007 | 8 | 0.64 |
P.S.I.A. Aspergoid - Revision 2007 | 8 | 0.61 |
P.S.I.A. Cold - Revision 2007 | 8 | 0.60 |
P.S.I.A. Neurotic - Revision 2007 | 8 | 0.59 |
P.S.I.A. Rare - Revision 2007 | 8 | 0.58 |
P.S.I.A. Deviance factor - Revision 2007 | 8 | 0.57 |
P.S.I.A. True - Revision 2007 | 8 | 0.48 |
P.S.I.A. Extreme - Revision 2007 | 8 | 0.47 |
P.S.I.A. Cruel - Revision 2007 | 8 | 0.32 |
Father's educational level | 23 | 0.30 |
Cooijmans Inventory of Neo-Marxist Attitudes | 5 | 0.25 |
P.S.I.A. Antisocial - Revision 2007 | 8 | 0.23 |
Mother's educational level | 23 | 0.22 |
P.S.I.A. Ethics factor - Revision 2007 | 8 | 0.21 |
Educational level | 24 | 0.19 |
P.S.I.A. Rational - Revision 2007 | 8 | 0.07 |
Gifted Adult's Inventory of Aspergerisms | 6 | 0.04 |
Observed behaviour | 7 | 0.03 |
Disorders (parents and siblings) | 24 | -0.00 |
Year of birth | 27 | -0.10 |
Disorders (own) | 25 | -0.30 |
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) |
---|---|---|
124 | 0.68 (372) | NaN (0) |
140 | 0.53 (317) | 0.34 (9) |
147 | 0.62 (199) | 0.49 (154) |
154 | 0.22 (28) | 0.65 (255) |
165 | NaN (0) | 0.68 (372) |