# Statistics of Educational level

## Legenda

The educational levels reported by test candidates are encoded as follows:

• 0 = No formal education
• 1 = A few years primary school
• 2 = Primary school completed
• 3 = A few years secondary school
• 4 = Secondary school completed
• 5 = Bachelor
• 6 = Master
• 7 = Doctor

## Scores on Educational level as of 26 September 2019

Contents type: Personal information.

• n: 986
• Mean: 4.84
• σ: 1.20
• Range: 7.0
• Maximum possible: 7
• Male mean: 4.85 (n = 844)
• Female mean: 4.78 (n = 141)
• Resolution: 0.18
 0 **** 1 ***** 2 ********** 3 *************************************************************************************** 4 *************************************************************************************************************************************************************************************************************************************************************************************************** 5 ********************************************************************************************************************************************************************************************************************************************************************************************************* 6 ******************************************************************************************************************************************************************************************************************* 7 *********************************************************************************

## Scores by males

n = 844

 0 *** 1 **** 2 ******* 3 ***************************************************************************** 4 ***************************************************************************************************************************************************************************************************************************************************** 5 ****************************************************************************************************************************************************************************************************************************************************************** 6 ************************************************************************************************************************************************************************************ 7 **********************************************************************

## Scores by females

n = 141

 0 * 1 * 2 *** 3 ********** 4 ********************************************** 5 ************************************** 6 ******************************* 7 ***********

## Correlation of Educational level with other tests by Paul Cooijmans

(Test index) Test name n r
(76) Analogies subtest of Long Test For Genius (Netherlandic)90.71
(54) Test of Shock and Awe180.66
(65) Long Test For Genius (Netherlandic)80.60
(0) Test of the Beheaded Man360.59
(47) Psychometrically Activated Grids Acerbate Neuroticism90.57
(5) Daedalus Test220.57
(21) Psychometric Qrosswords160.55
(8) Female Intelligence Test60.54
(42) The Marathon Test280.52
(33) Problems In Gentle Slopes of the first degree190.51
(43) Test For Genius - Revision 2010340.50
(45) Numerical and spatial sections of The Marathon Test420.49
(32) Spatial section of The Marathon Test430.48
(31) Numerical section of The Marathon Test430.48
(30) Verbal section of The Marathon Test300.47
(56) Short Test For Genius140.46
(51) Qoymans Multiple-Choice #1160.43
(107) The Alchemist Test170.40
(48) Narcissus' last stand160.40
(18) The Nemesis Test440.39
(59) Association and Analogies (German)50.39
(35) Intelligence Quantifier by assessment870.37
(46) Labyrinthine LIMIT120.32
(75) Analogies of Long Test For Genius420.32
(1) Cartoons of Shock480.31
(14) Low Countries Aptitude Test70.31
(63) Long Test For Genius360.30
(23) Gliaweb Riddled Intelligence Test - Revision 20111520.30
(26) Verbal section of Test For Genius - Revision 20041080.30
(36) Reflections In Peroxide180.30
(79) Association subtest of Long Test For Genius470.28
(19) Numerical section of Test For Genius - Revision 2010730.27
(108) Verbal section of Test For Genius - Revision 2016190.27
(15) Letters210.27
(57) Space, Time, and Hyperspace690.27
(25) The Sargasso Test440.26
(66) Test For Genius - Revision 2004760.25
(77) Analogies #180.24
(53) Qoymans Multiple-Choice #3860.22
(28) The Test To End All Tests460.22
(111) Test For Genius - Revision 2016190.21
(106) Cooijmans Intelligence Test - Form 4640.20
(29) Words220.20
(4) A Paranoiac's Torture: Intelligence Test Utilizing Diabolic Exactitude230.19
(80) Qoymans Multiple-Choice #41480.19
(41) The LAW - Letters And Words190.19
(12) Cooijmans On-Line Test - Two-barrelled version310.19
(27) Spatial section of Test For Genius - Revision 20041220.18
(39) Combined Numerical and Spatial sections of Test For Genius - Revision 2010520.18
(37) Problems In Gentle Slopes of the third degree220.18
(104) The Final Test - Revision 2013170.17
(2) Cooijmans Intelligence Test - Form 31380.17
(52) Qoymans Multiple-Choice #2160.16
(103) Problems In Gentle Slopes of the second degree230.16
(117) The Hammer Of Test-Hungry - Revision 2013160.14
(116) Gliaweb Riddled Intelligence Test (old version)430.14
(55) Spatial Insight Test250.13
(109) The Bonsai Test - Revision 2016240.12
(112) Combined Numerical and Spatial sections of Test For Genius - Revision 2016230.12
(71) Numerical Insight Test130.11
(10) Genius Association Test990.11
(68) Numbers570.10
(86) Evens100.09
(105) Space, Time, and Hyperspace - Revision 2016240.08
(7) The Final Test680.07
(87) Cooijmans Intelligence Test - Form 2620.05
(83) KIT Intelligence Test - first attempts140.04
(85) Cooijmans Intelligence Test - Form 1190.01
(24) Reason - Revision 2008780.00
(6) De Laatste Test5-0.00
(3) Qoymans Multiple-Choice #578-0.02
(50) Qoymans Automatic Test #212-0.02
(110) Cooijmans Intelligence Test 519-0.04
(16) Lieshout International Mesospheric Intelligence Test88-0.04
(11) Isis Test58-0.04
(81) Association subtest of Long Test For Genius (Netherlandic)9-0.05
(44) Associative LIMIT59-0.05
(40) Reason Behind Multiple-Choice - Revision 200876-0.05
(84) Bonsai Test17-0.08
(69) Odds21-0.13
(74) Cooijmans On-Line Test15-0.16
(82) Reason38-0.30
(62) Reason Behind Multiple-Choice31-0.38
(72) Qoymans Automatic Test #112-0.45
(73) Qoymans Automatic Test #310-0.48

Weighted average of correlations: 0.194 (weighted sum: 643.66)

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 5 score pairs. All known pairs are used, including possible floor/ceiling scores or outliers.

## Correlation of Educational level with tests by others

(Test index) Test name n r
(213) Encephalist - R60.76
(221) National I.Q. Tests50.61
(214) Epiq Tests140.54
(202) Cattell Verbal90.49
(205) Cito-toets130.40
(209) Drenth number series80.39
(227) Concep-T80.38
(235) Nonverbal Cognitive Performance Examination400.31
(206) W-8790.28
(244) Scholastic Aptitude Test (new)100.27
(237) Sigma Test230.25
(228) Miller Analogies Test (raw; old version)70.24
(246) Sequentia Numerica Form I130.24
(243) Scholastic Aptitude Test (old)180.20
(212) Raven's Advanced Progressive Matrices (raw)240.18
(242) Unknown and miscellaneous tests2050.13
(224) T.R.I.120.12
(234) Strict Logic Sequences Exam I700.09
(241) Ultra Test110.07
(239) Titan Test200.05
(204) Chimera High Ability Riddle Test60.00
(229) Mega Test120.00
(238) 916 Test20-0.03
(200) American College Testing program17-0.04
(231) Mysterium Entrance Exam31-0.04
(211) Culture Fair Numerical Spatial Examination - Final version56-0.07
(236) International High IQ Society Miscellaneous tests55-0.15
(225) Logima Strictica 3650-0.15
(240) Strict Logic Spatial Exam 4830-0.16
(218) Raven's Advanced Progressive Matrices (I.Q.)28-0.17
(223) Strict Logic Sequences Exam II17-0.20
(203) Wechsler Adult Intelligence Scales for Children9-0.20
(233) Hoeflin Power Test7-0.23
(226) Logima Strictica 2414-0.32
(220) Cattell Culture Fair36-0.41
(217) G-test8-0.51
(230) Omega Contemplative Items Pool7-0.66
(208) California Test of Mental Maturity6-0.76

Weighted average of correlations: 0.041 (weighted sum: 41.00)

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 5 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.

## Correlation of Educational level with other tests by Paul Cooijmans - for females

(Test index) Test name n r
(0) Test of the Beheaded Man21.00
(12) Cooijmans On-Line Test - Two-barrelled version21.00
(15) Letters21.00
(19) Numerical section of Test For Genius - Revision 201021.00
(27) Spatial section of Test For Genius - Revision 200421.00
(28) The Test To End All Tests21.00
(29) Words21.00
(30) Verbal section of The Marathon Test21.00
(31) Numerical section of The Marathon Test21.00
(32) Spatial section of The Marathon Test21.00
(41) The LAW - Letters And Words21.00
(42) The Marathon Test21.00
(45) Numerical and spatial sections of The Marathon Test21.00
(51) Qoymans Multiple-Choice #121.00
(54) Test of Shock and Awe21.00
(76) Analogies subtest of Long Test For Genius (Netherlandic)21.00
(81) Association subtest of Long Test For Genius (Netherlandic)21.00
(107) The Alchemist Test21.00
(109) The Bonsai Test - Revision 201621.00
(25) The Sargasso Test30.91
(116) Gliaweb Riddled Intelligence Test (old version)40.85
(26) Verbal section of Test For Genius - Revision 200440.81
(106) Cooijmans Intelligence Test - Form 440.78
(7) The Final Test50.69
(24) Reason - Revision 200850.68
(10) Genius Association Test60.65
(40) Reason Behind Multiple-Choice - Revision 200850.63
(87) Cooijmans Intelligence Test - Form 240.61
(18) The Nemesis Test30.50
(1) Cartoons of Shock50.48
(53) Qoymans Multiple-Choice #390.43
(3) Qoymans Multiple-Choice #550.40
(23) Gliaweb Riddled Intelligence Test - Revision 2011120.34
(68) Numbers30.33
(35) Intelligence Quantifier by assessment110.28
(2) Cooijmans Intelligence Test - Form 3140.26
(80) Qoymans Multiple-Choice #4150.18
(16) Lieshout International Mesospheric Intelligence Test4-0.25
(44) Associative LIMIT4-0.26
(57) Space, Time, and Hyperspace4-0.37
(8) Female Intelligence Test2-1.00
(55) Spatial Insight Test2-1.00
(63) Long Test For Genius2-1.00
(75) Analogies of Long Test For Genius2-1.00

Weighted average of correlations: 0.453 (weighted sum: 79.31)

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.

Remark: Within females, the correlation of educational level with I.Q. test scores is higher than within males (and females combined).

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.

Verbal0.46
Numerical0.46
Spatial0.41
Logical-0.08
Heterogeneous0.46

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

Note: Although positive, the correlation of educational level with high-range I.Q. test scores (and therewith its g loading) is much too low to allow for a meaningful "norming" or regression of educational levels to I.Q.'s. For high-range test candidates, more education seems to require only marginally more g. This finding is not entirely inconsistent with what one may informally observe when communicating with persons who use academic titles in the high-I.Q. community.

## National means for Educational level

Country n mean score
Russia36.33
Hong_Kong56.00
Hungary26.00
Bosnia_and_Herzegovina45.75
South_Africa95.67
Portugal55.60
Turkey95.56
France185.44
Japan85.38
Romania65.17
Poland135.15
Germany635.14
Mexico75.14
Switzerland75.14
Greece245.13
India245.08
Belgium215.05
Sweden575.04
Czech_Republic25.00
Iran35.00
Serbia25.00
Slovakia25.00
Bulgaria84.88
China164.88
Finland284.86
United_Kingdom454.84
Austria104.80
Spain234.78
Italy184.78
New_Zealand44.75
Philippines44.75
Slovenia44.75
Netherlands894.70
Australia184.69
Chile34.67
Cyprus34.67
Malaysia34.67
Norway154.67
Singapore34.67
United_States2764.65
Denmark134.62
Yugoslavia54.60
Cuba24.50
Israel74.43
Brazil134.38
Argentina64.33
Korea_South174.29
Croatia24.00
Thailand24.00

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

## Correlation with national I.Q.'s of Educational level

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

• r = -0.03 (n = 979)

## Correlation of Educational level with personal details

Personalia n r
Observed behaviour910.32
P.S.I.A. Orderly3550.23
Cooijmans Inventory of Neo-Marxist Attitudes410.19
P.S.I.A. Ethics factor4620.17
Father's educational level9130.08
P.S.I.A. Rational3550.05
P.S.I.A. True3550.04
Sex9860.02
Observed associative horizon420.01
Mother's educational level921-0.01
P.S.I.A. Extreme355-0.02
P.S.I.A. System factor218-0.07
Disorders (parents and siblings)961-0.12
P.S.I.A. Cold355-0.12
P.S.I.A. Just355-0.13
Disorders (own)965-0.13
P.S.I.A. Neurotic355-0.17
P.S.I.A. Rare355-0.18
P.S.I.A. Antisocial355-0.18
P.S.I.A. Cruel355-0.19
P.S.I.A. Introverted355-0.21
P.S.I.A. Deviance factor462-0.21
P.S.I.A. Aspergoid355-0.26
Year of birth979-0.47

## Correlation with personal details of Educational level - within females

Personalia n r
Father's educational level1240.22
P.S.I.A. Orderly630.18
P.S.I.A. Neurotic630.15
Mother's educational level1230.14
P.S.I.A. Rare630.12
P.S.I.A. Rational630.10
P.S.I.A. Cold630.09
P.S.I.A. Aspergoid630.07
P.S.I.A. System factor390.05
P.S.I.A. Ethics factor840.04
P.S.I.A. Deviance factor84-0.00
P.S.I.A. Cruel63-0.01
Disorders (own)134-0.03
P.S.I.A. Extreme63-0.04
Disorders (parents and siblings)133-0.07
P.S.I.A. True63-0.09
P.S.I.A. Antisocial63-0.11
P.S.I.A. Introverted63-0.12
P.S.I.A. Just63-0.12
Observed associative horizon6-0.25
Year of birth137-0.31
Observed behaviour10-0.62

Remarkable is that "Observed behaviour" is the lowest correlate of educational level in females, but the highest in males. GAIA (Gifted Adult's Inventory of Aspergerisms) is among the lowest for both sexes.

## Correlation with personal details of Educational level - within males

Personalia n r
Observed behaviour810.34
P.S.I.A. Orderly2920.24
P.S.I.A. Ethics factor3780.20
Cooijmans Inventory of Neo-Marxist Attitudes390.13
P.S.I.A. True2920.07
Father's educational level7880.05
Observed associative horizon360.05
P.S.I.A. Rational2920.02
P.S.I.A. Extreme292-0.01
Mother's educational level797-0.03
P.S.I.A. System factor179-0.11
Disorders (parents and siblings)827-0.13
P.S.I.A. Just292-0.14
Disorders (own)830-0.15
P.S.I.A. Cold292-0.19
P.S.I.A. Antisocial292-0.21
P.S.I.A. Neurotic292-0.23
P.S.I.A. Introverted292-0.24
P.S.I.A. Cruel292-0.24
P.S.I.A. Rare292-0.26
P.S.I.A. Deviance factor378-0.27
P.S.I.A. Aspergoid292-0.34
Year of birth841-0.50

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)
00.44 (3345)NaN (0)
10.45 (3341)0.38 (3)
20.44 (3334)0.88 (11)
30.43 (3319)0.51 (115)
40.37 (3061)0.42 (1221)
50.41 (2056)0.33 (2230)
60.34 (1041)0.41 (3052)
7NaN (0)0.44 (3345)

## Conclusions

1. There is, on the whole, a very small positive correlation of educational level with high-range I.Q. test scores (it is in fact .04 to .19);
2. Within females, however, there is a low positive correlation of about .45;
3. Only downward of educational level 3 (a few years secondary school) there seems to be a somewhat higher correlation with I.Q.;
4. Scores on the Gifted Adult's Inventory of Aspergerisms correlate negatively with educational level.

## Disclaimer

Mistaken responses to a previous version of this report have made the following disclaimer necessary: This report deals only with statistics of high-range test candidates. Within the general population, there is no doubt a much higher correlation of educational level with I.Q. than reported for the high-range population. This difference has to do with phenomena like attenuation due to restriction of range, and Spearman's "law of diminishing returns" regarding g. Incorrect reporting by candidates may also play a role; some seem to report higher educational levels than they have, and notorious is the unauthorized used of the doctor title in high-I.Q. circles.