Statistics of Cooijmans Inventory of Neo-Marxist Attitudes

Scores on Cooijmans Inventory of Neo-Marxist Attitudes as of 15 February 2025

Contents type: Personal information, observation, or non-cognitive personality test score in numeric form. Period: 2012-present

n: 168
Median: 18.0
Quartile deviation: 13.8
Maximum possible: 80
Male median: 16.5 (n = 155)
Female median: 37.0 (n = 12)
Proportion of males among candidates: 0.923
Hardness: 0.78
Resolution: 27.5

0	*****
0.5	*
1	**
1.5	*
2	***
2.5	**
3.5	**
4	****
4.5	****
5.5	**
6	**
6.5	*
7	**
7.5	**
8	*****
8.5	**
9.5	**
10	**
10.5	******
11	*
11.5	*******
12	**
12.5	****
13	****
13.5	**
14	**
14.5	*
15	**
15.5	*
16	**
16.5	**
17	***
18	***
18.5	*
19	***
19.5	****
20	*
21	*
22.5	**
23	**
24	**
24.5	***
25	*
25.5	*
27	*
27.5	*
28	**
29	*
29.5	*
30	*
30.5	*
31	***
32.5	**
34	*
34.5	**
35	*
35.5	*
37	*
37.5	*
38.5	*****
39	*
39.5	*
40	*
40.5	****
41	**
41.5	*
42	*
42.5	*
43.5	**
44.5	**
45	**
45.5	**
46	*
46.5	*
47	***
48.5	*
49.5	*
51	*
52.5	**
55	**
59	*
62	*
67.5	*
69.5	*

The fact that the female median is so much higher than the male median (about 1.2 standard deviations higher) is one of the remarkable features of this test. The difference is statistically significant, and in fact the female scores are situated almost entirely in the upper half of the score distribution.

Scores by males

n = 155

0	*****
0.5	*
1	**
1.5	*
2	***
2.5	**
3.5	**
4	****
4.5	****
5.5	*
6	**
7	**
7.5	**
8	*****
8.5	**
9.5	**
10	**
10.5	******
11	*
11.5	*******
12	**
12.5	****
13	****
13.5	**
14	**
14.5	*
15	**
15.5	*
16	**
16.5	**
17	***
18	***
18.5	*
19	***
19.5	****
20	*
21	*
22.5	**
23	**
24	*
24.5	***
25	*
25.5	*
27	*
27.5	*
28	*
29	*
29.5	*
30	*
30.5	*
31	**
32.5	**
34	*
34.5	*
35	*
35.5	*
37	*
37.5	*
38.5	*****
39	*
40	*
40.5	***
41	**
41.5	*
42	*
42.5	*
43.5	**
44.5	*
45	**
45.5	*
46	*
46.5	*
47	**
48.5	*
52.5	**
55	**
59	*
62	*
67.5	*
69.5	*

Scores by females

n = 12

5.5	*
6.5	*
24	*
28	*
31	*
34.5	*
39.5	*
40.5	*
44.5	*
47	*
49.5	*
51	*

Correlation of Cooijmans Inventory of Neo-Marxist Attitudes with other mental ability tests

Test name	n	r
Concep-T (Laurent Dubois)	4	0.93
Cooijmans Intelligence Test - Form 2	6	0.77
916 Test (Laurent Dubois)	6	0.66
Qoymans Multiple-Choice #3 (batch scored by Paul Cooijmans)	4	0.61
Tests by Greg Grove (aggregate)	6	0.53
Test For Genius - Revision 2010	5	0.47
Verbal section of Test For Genius - Revision 2004	8	0.35
International High IQ Society tests (aggregate)	6	0.34
Strict Logic Sequences Exam I (Jonathan Wai)	7	0.34
Spatial section of The Marathon Test	10	0.26
Qoymans Multiple-Choice #4	10	0.26
Labyrinthine LIMIT	6	0.25
Logima Strictica 36 (Robert Lato)	9	0.24
Numerical and spatial sections of The Marathon Test	10	0.20
Daedalus Test	7	0.18
Reason Behind Multiple-Choice	4	0.18
Psychometric Qrosswords	6	0.18
Strict Logic Spatial Exam 48 (Jonathan Wai)	4	0.16
Numerical section of Test For Genius - Revision 2010	15	0.16
Gliaweb Riddled Intelligence Test - Revision 2011	20	0.10
Problems In Gentle Slopes of the second degree	9	0.08
Reason - Revision 2008	18	0.08
Numerical section of The Marathon Test	10	0.08
Tests by Ivan Ivec (aggregate)	7	0.06
Reason Behind Multiple-Choice - Revision 2008	18	0.00
Cooijmans Intelligence Test - Form 3	20	-0.00
The Sargasso Test	14	-0.03
Qoymans Multiple-Choice #5	18	-0.05
Epiq Tests (aggregate)	6	-0.06
Raven's Advanced Progressive Matrices (I.Q.)	6	-0.07
Cooijmans Intelligence Test - Form 4	14	-0.09
Test of the Beheaded Man	18	-0.10
Cooijmans Intelligence Test 5	14	-0.10
Logima Strictica 24 (Robert Lato)	5	-0.10
Only idiots	4	-0.13
A Paranoiac's Torture: Intelligence Test Utilizing Diabolic Exactitude	9	-0.13
Associative LIMIT	13	-0.20
Dicing with death	8	-0.23
Miscellaneous tests	32	-0.24
Combined Numerical and Spatial sections of Test For Genius - Revision 2010	5	-0.25
Psychometrically Activated Grids Acerbate Neuroticism	5	-0.26
Test of Inductive Reasoning / J.C.T.I. (Xavier Jouve)	7	-0.28
Lieshout International Mesospheric Intelligence Test	15	-0.28
De Golfstroomtest - Herziening 2019	4	-0.29
Wechsler Adult Intelligence Scales	8	-0.30
The Piper's Test	7	-0.32
De Laatste Test - Herziening 2019	5	-0.33
Problems In Gentle Slopes of the first degree	6	-0.33
Problems In Gentle Slopes of the third degree	12	-0.33
Reflections In Peroxide	15	-0.36
The Nemesis Test	9	-0.38
Numbers	4	-0.38
Genius Association Test	14	-0.39
Verbal section of Test For Genius - Revision 2016	10	-0.39
Combined Numerical and Spatial sections of Test For Genius - Revision 2016	11	-0.41
Test For Genius - Revision 2016	10	-0.42
Divine Psychometry (Matthew Scillitani)	5	-0.44
Cooijmans On-Line Test - Two-barrelled version	7	-0.45
Isis Test	12	-0.48
The Bonsai Test - Revision 2016	15	-0.53
Space, Time, and Hyperspace - Revision 2016	11	-0.55
The Test To End All Tests	11	-0.57
Qoymans Multiple-Choice #1	4	-0.58
Narcissus' last stand	11	-0.59
Test For Genius - Revision 2004	5	-0.61
A Relaxing Test (David Miller)	5	-0.63
The Marathon Test	7	-0.67
Verbal section of The Marathon Test	8	-0.68
The Alchemist Test (Anas El Husseini)	5	-0.69
Tests by Paul Laurent Miranda (aggregate)	4	-0.69
The Hammer Of Test-Hungry - Revision 2013	4	-0.72
The Smell Test	4	-0.74
Gliaweb Riddled Intelligence Test (old version)	5	-0.77
Spatial section of Test For Genius - Revision 2004	9	-0.78
Cartoons of Shock	4	-0.83
Culture Fair Numerical Spatial Examination - Final version (Etienne Forsström)	5	-0.88
Reason	4	-0.93
The Final Test - Revision 2013	4	-0.93

Weighted mean of correlations: -0.168 (N = 692)

Estimated g factor loading: -0.41

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.

This is a small yet significant negative correlation with I.Q. scores.

Estimated loadings of Cooijmans Inventory of Neo-Marxist Attitudes 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.

Type	n	g loading of Cooijmans Inventory of Neo-Marxist Attitudes on that type
Verbal	97	-0.44
Numerical	36	0.33
Spatial	63	-0.44
Logical	36	-0.29
Heterogeneous	267	-0.46

N = 499

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

Balanced g loading = -0.26

National medians for Cooijmans Inventory of Neo-Marxist Attitudes

Country	n	median score
Netherlands	10	35.8
Germany	9	30.5
Denmark	5	18.0
United_States	35	16.5
Sweden	5	15.5
United_Kingdom	3	13.0
Belgium	3	12.0
Finland	5	11.5
Australia	3	8.0
France	3	6.5
Spain	3	5.5

For reasons of privacy, only countries with 3 or more candidates are included in this table. Ranking is based on the medians, and then alphabetic.

Correlation of Cooijmans Inventory of Neo-Marxist Attitudes with personal details

Personalia	n	r
PSIA Cruel - Revision 2007	32	0.54
PSIA Antisocial - Revision 2007	32	0.36
PSIA Neurotic - Revision 2007	32	0.20
Educational level	62	0.15
Disorders (parents and siblings)	58	0.08
Observed associative horizon	10	0.08
Disorders (own)	62	0.06
Father's educational level	55	0.03
Mother's educational level	57	0.01
PSIA Aspergoid - Revision 2007	32	-0.05
PSIA Rare - Revision 2007	32	-0.08
Year of birth	158	-0.08
Sex	167	-0.19
PSIA Cold - Revision 2007	32	-0.23
PSIA Deviance factor - Revision 2007	32	-0.23
PSIA Introverted - Revision 2007	32	-0.25
PSIA Extreme - Revision 2007	32	-0.25
Gifted Adult's Inventory of Aspergerisms	39	-0.28
PSIA Rational - Revision 2007	32	-0.40
PSIA Orderly - Revision 2007	32	-0.40
Observed behaviour	19	-0.44
PSIA True - Revision 2007	32	-0.49
PSIA System factor - Revision 2007	32	-0.49
PSIA Ethics factor - Revision 2007	32	-0.60
PSIA Just - Revision 2007	32	-0.66

PSIA Just, Ethics, System, True, Orderly, Rational, and Sex are the significant negative correlates of neo-Marxist attitudes, while Antisocial and Cruel are the only significant positive correlates in this table.

Estimated g factor loadings for restricted ranges

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 these values to be lower than the test's full-range g loading.

Below 1st quartile (raw 9.8)	-0.34 (391)
Below median (raw 18.0)	-0.18 (476)
Above median (raw 18.0)	-0.37 (177)
Above 3rd quartile (raw 37.3)	-0.55 (39)

Reliability analysis for Cooijmans Inventory of Neo-Marxist Attitudes

Split-half (odd-even) = 0.97
Split-half (1, 2… 5, 6… vs. 3, 4… 7, 8…) = 0.97
Cronbach's alpha = 0.97

These are stunningly high reliabilities for a non-cognitive personality test, and in fact even higher than those of most I.Q. tests. They imply that the attitudes collected in the CINEMA are indeed a strongly correlating whole.

Error

Standard error = 2.8 raw score points

Scores by age for Cooijmans Inventory of Neo-Marxist Attitudes

Age class	n	Median score
65 to 69	2	29.5
60 to 64	7	12.5
55 to 59	4	45.8
50 to 54	9	16.0
45 to 49	12	12.3
40 to 44	18	22.8
35 to 39	21	18.5
30 to 34	20	14.0
25 to 29	24	18.0
22 to 24	16	15.0
20 or 21	6	6.8
18 or 19	15	19.0
17	1	6.5
15	2	39.8

N = 157

Scores by age for Cooijmans Inventory of Neo-Marxist Attitudes - within females

Age class	n	Median raw
60 to 64	1	5.5
55 to 59	2	45.8
45 to 49	1	24.0
40 to 44	2	36.8
35 to 39	1	49.5
30 to 34	1	31.0
22 to 24	1	51.0
17	1	6.5

N = 10

Scores by age for Cooijmans Inventory of Neo-Marxist Attitudes - within males

Age class	n	Median raw
65 to 69	2	29.5
60 to 64	6	12.8
55 to 59	2	40.5
50 to 54	9	16.0
45 to 49	11	11.5
40 to 44	16	19.0
35 to 39	20	17.8
30 to 34	19	13.0
25 to 29	23	18.0
22 to 24	15	13.0
20 or 21	6	6.8
18 or 19	15	19.0
15	2	39.8

N = 146

Scores by year taken for Cooijmans Inventory of Neo-Marxist Attitudes

Year taken	n	Median score
2012	38	20.3
2013	19	24.5
2014	11	38.5
2015	9	23.0
2016	7	24.5
2017	22	12.3
2018	17	15.5
2019	7	12.5
2020	4	29.5
2021	6	11.8
2022	9	10.5
2023	9	9.5
2024	8	17.5

N = 166

Robustness and overall test quality for Cooijmans Inventory of Neo-Marxist Attitudes

Robustness (score trend by time measured in months) = r_{raw scores × months} = -0.16 (n = 166)

Item analysis for Cooijmans Inventory of Neo-Marxist Attitudes

r = correlation of that item with the combined score over the rest of the items.

Item #	Hardness (q)	r
1	0.51	0.58
2	0.62	0.66
3	0.47	0.42
4	0.44	0.52
5	0.58	0.59
6	0.64	0.75
7	0.58	0.59
8	0.59	0.52
9	0.57	0.49
10	0.73	0.68
11	0.66	0.37
12	0.72	0.68
13	0.85	0.31
14	0.49	0.66
15	0.67	0.72
16	0.81	0.70
17	0.72	0.55
18	0.80	0.57
19	0.61	0.64
20	0.78	0.43
21	0.65	0.27
22	0.61	0.51
23	0.84	0.64
24	0.58	0.68
25	0.84	0.65
26	0.78	0.74
27	0.78	0.63
28	0.64	0.63
29	0.68	0.49
30	0.62	0.41
31	0.67	0.77
32	0.64	0.38
33	0.80	0.30
34	0.81	0.65
35	0.69	0.51
36	0.85	0.66
37	0.75	0.77
38	0.78	0.75
39	0.35	0.44
40	0.73	0.52
41	0.66	0.69
42	0.79	0.56
43	0.81	0.64
44	0.82	0.67
45	0.60	0.38
46	0.65	0.79
47	0.63	0.61
48	0.85	0.49
49	0.73	0.49
50	0.75	0.62
51	0.79	0.68
52	0.55	0.63
53	0.82	0.52
54	0.87	0.59
55	0.56	0.39
56	0.69	0.60
57	0.62	0.59
58	0.86	0.41
59	0.91	0.39
60	0.90	0.49
61	0.86	0.50
62	0.86	0.41
63	0.73	0.74
64	0.70	0.49
65	0.98	0.32
66	0.70	0.72
67	0.57	0.56
68	0.92	0.59
69	0.69	0.46
70	0.92	0.48
71	0.93	0.50
72	0.95	0.32
73	0.91	0.36
74	0.90	0.46
75	0.93	0.24
76	0.87	0.55
77	0.81	0.56
78	0.74	0.32
79	0.93	0.15
80	0.89	0.26

The fact that all of the items have positive correlations, and that in almost all cases those are significant and sizeable, means that the attitudes contained in this inventory form a strongly correlating whole and a genuine behavioural dimension.

The conclusions

Females score much higher than males on neo-Marxist attitudes;
The inventory has very high reliability and very small error of measurement, and measures a genuine behavioural dimension;
PSIA Just, Ethics, System, True, Orderly, Rational, and Sex correlate negatively with neo-Marxist attitudes, while PSIA Cruel and Antisocial are the positive correlates;
There is a small yet significant negative correlation with I.Q. scores.

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