Qoymans Multiple-Choice #5 Statistics

© Paul Cooijmans

Scores on Qoymans Multiple-Choice #5 as of 19 June 2021

Contents type: Verbal.   Period: 2008-present

-4.5 *
5 *
15 *
23 *
27 *
27.5 *
31 *
34 *
35.5 *
36.5 *
40.5 *
42 *
42.5 **
43 *
45 **
46 **
46.5 **
47 ***
48 *
48.5 *
52.5 *
53 *
55 **
57 **
57.5 *
58.5 *
60 *
63 **
64.5 *
65.5 **
66 **
66.5 *
67 **
68 ****
68.5 *
70 **
70.5 *
71 *****
71.5 *
72 *****
73 *****
73.5 ***
75 ***
76.5 *
77 **
78 *****
78.5 *
80 *
80.5 *
81 **
81.5 *
82 ****
82.5 **
83 *
83.5 *
87 *
94 *
97 *

Scores by males

n = 95

-4.5 *
5 *
15 *
23 *
27 *
27.5 *
34 *
35.5 *
36.5 *
40.5 *
42 *
42.5 *
43 *
45 **
46 **
46.5 *
47 ***
48 *
48.5 *
52.5 *
53 *
55 **
57 **
57.5 *
58.5 *
60 *
63 **
64.5 *
65.5 **
66 **
66.5 *
67 **
68 ****
70 **
70.5 *
71 *****
71.5 *
72 ****
73 *****
73.5 ***
75 ***
76.5 *
77 **
78 *****
78.5 *
80 *
80.5 *
81 **
81.5 *
82 ****
82.5 **
83 *
83.5 *
87 *
94 *
97 *

Scores by females

n = 5

31 *
42.5 *
46.5 *
68.5 *
72 *

Correlation of Qoymans Multiple-Choice #5 with other tests by I.Q. Tests for the High Range

(Test index) Test name n r
(113) The Piper's Test60.98
(114) Dicing with death90.84
(21) Psychometric Qrosswords100.84
(35) Intelligence Quantifier by assessment290.83
(106) Cooijmans Intelligence Test - Form 4260.82
(42) The Marathon Test120.82
(23) Gliaweb Riddled Intelligence Test - Revision 2011320.81
(30) Verbal section of The Marathon Test150.81
(28) The Test To End All Tests200.80
(0) Test of the Beheaded Man210.80
(40) Reason Behind Multiple-Choice - Revision 2008960.80
(32) Spatial section of The Marathon Test150.77
(48) Narcissus' last stand170.76
(1) Cartoons of Shock220.76
(110) Cooijmans Intelligence Test 5190.75
(62) Reason Behind Multiple-Choice100.74
(87) Cooijmans Intelligence Test - Form 2110.72
(45) Numerical and spatial sections of The Marathon Test150.70
(66) Test For Genius - Revision 2004170.70
(75) Analogies of Long Test For Genius50.70
(80) Qoymans Multiple-Choice #4150.68
(2) Cooijmans Intelligence Test - Form 3370.64
(41) The LAW - Letters And Words80.64
(26) Verbal section of Test For Genius - Revision 2004290.63
(33) Problems In Gentle Slopes of the first degree110.63
(111) Test For Genius - Revision 2016190.61
(25) The Sargasso Test310.61
(29) Words80.59
(27) Spatial section of Test For Genius - Revision 2004320.59
(18) The Nemesis Test190.58
(107) The Alchemist Test140.55
(47) Psychometrically Activated Grids Acerbate Neuroticism90.54
(108) Verbal section of Test For Genius - Revision 2016190.53
(19) Numerical section of Test For Genius - Revision 2010390.52
(31) Numerical section of The Marathon Test150.51
(46) Labyrinthine LIMIT70.51
(112) Combined Numerical and Spatial sections of Test For Genius - Revision 2016220.50
(36) Reflections In Peroxide210.50
(103) Problems In Gentle Slopes of the second degree170.50
(43) Test For Genius - Revision 2010140.49
(12) Cooijmans On-Line Test - Two-barrelled version200.48
(54) Test of Shock and Awe50.47
(109) The Bonsai Test - Revision 2016250.46
(24) Reason - Revision 2008960.46
(4) A Paranoiac's Torture: Intelligence Test Utilizing Diabolic Exactitude220.45
(44) Associative LIMIT300.43
(105) Space, Time, and Hyperspace - Revision 2016230.43
(7) The Final Test180.41
(10) Genius Association Test340.40
(16) Lieshout International Mesospheric Intelligence Test350.40
(82) Reason110.39
(68) Numbers70.38
(37) Problems In Gentle Slopes of the third degree230.34
(39) Combined Numerical and Spatial sections of Test For Genius - Revision 2010200.34
(5) Daedalus Test150.32
(11) Isis Test340.29
(79) Association subtest of Long Test For Genius60.29
(15) Letters90.27
(104) The Final Test - Revision 2013130.27
(57) Space, Time, and Hyperspace70.26
(55) Spatial Insight Test60.25
(53) Qoymans Multiple-Choice #370.21
(49) The Hammer Of Test-Hungry40.17
(117) The Hammer Of Test-Hungry - Revision 2013120.08
(86) Evens50.06
(63) Long Test For Genius4-0.07
(84) Bonsai Test5-0.16
(83) KIT Intelligence Test - first attempts4-0.31
(69) Odds5-0.50
(116) Gliaweb Riddled Intelligence Test (old version)10-0.74

Weighted average of correlations: 0.547 (N = 1308, weighted sum = 715.55)

Conservatively estimated minimum g loading: 0.74

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.

Correlation of Qoymans Multiple-Choice #5 with tests by others

(Test index) Test name n r
(236) International High IQ Society Miscellaneous tests40.99
(239) Titan Test70.93
(223) Strict Logic Sequences Exam II70.78
(211) Culture Fair Numerical Spatial Examination - Final version50.70
(201) Wechsler Adult Intelligence Scales60.64
(238) 916 Test80.57
(235) Nonverbal Cognitive Performance Examination70.54
(218) Raven's Advanced Progressive Matrices (I.Q.)40.51
(231) Mysterium Entrance Exam90.49
(240) Strict Logic Spatial Exam 48100.36
(225) Logima Strictica 36110.26
(242) Unknown and miscellaneous tests430.20
(234) Strict Logic Sequences Exam I190.13
(220) Cattell Culture Fair50.04
(246) Sequentia Numerica Form I4-0.20
(217) G-test4-0.49

Weighted average of correlations: 0.348 (N = 153, weighted sum = 53.23)

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.

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 Qoymans Multiple-Choice #5 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.

Typeng loading of Qoymans Multiple-Choice #5 on that type
Verbal2160.74
Numerical710.63
Spatial1180.70
Logical1220.66
Heterogeneous4400.75

N = 967

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

Balanced g loading = 0.70

National medians for Qoymans Multiple-Choice #5

Country n median score
Spain580.5
Romania274.5
South_Africa274.0
Sweden373.5
United_Kingdom573.0
Bulgaria270.5
India269.0
Germany568.5
China568.0
Finland568.0
United_States2465.8
Canada456.8
Portugal249.0
Greece1046.3
Korea_South540.5

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 Qoymans Multiple-Choice #5

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

Correlation of Qoymans Multiple-Choice #5 with personal details

Personalia n r
Observed associative horizon100.70
P.S.I.A. Extreme - Revision 2007260.42
P.S.I.A. Rational - Revision 2007260.36
Observed behaviour250.34
P.S.I.A. System factor - Revision 2007260.34
P.S.I.A. Deviance factor - Revision 2007260.34
P.S.I.A. Orderly - Revision 2007260.28
P.S.I.A. Just - Revision 2007260.27
P.S.I.A. Cold - Revision 2007260.25
Sex1000.13
P.S.I.A. Introverted - Revision 2007260.10
Gifted Adult's Inventory of Aspergerisms220.10
P.S.I.A. Rare - Revision 2007260.08
Educational level950.08
P.S.I.A. Neurotic - Revision 2007260.06
P.S.I.A. Ethics factor - Revision 2007260.06
P.S.I.A. True - Revision 2007260.05
P.S.I.A. Antisocial - Revision 2007260.02
P.S.I.A. Aspergoid - Revision 2007260.02
Cooijmans Inventory of Neo-Marxist Attitudes130.02
Mother's educational level93-0.03
P.S.I.A. Cruel - Revision 200726-0.05
Disorders (parents and siblings)95-0.05
Father's educational level89-0.09
Disorders (own)95-0.13
Year of birth98-0.14

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)
-1000.74 (1308)NaN (0)
280.71 (1238)0.83 (21)
420.69 (1177)0.63 (74)
55.80.60 (866)0.65 (387)
69.30.58 (547)0.69 (705)
760.64 (199)0.70 (1015)
83.10.69 (12)0.71 (1224)
100NaN (0)0.74 (1308)

Reliability

Error

Scores by age

Age class n median score
70 to 74178.0
60 to 64258.0
55 to 59273.8
50 to 54345.0
45 to 491069.0
40 to 44971.0
35 to 39978.0
30 to 341363.0
25 to 292371.0
22 to 241566.0
20 or 21669.0
18 or 19353.0
17340.5

N = 99

Scores by age - within females

Age class n median score
50 to 54244.5
40 to 44168.5
35 to 39172.0
30 to 34131.0

N = 5

Scores by age - within males

Age class n median score
70 to 74178.0
60 to 64258.0
55 to 59273.8
50 to 54145.0
45 to 491069.0
40 to 44871.5
35 to 39879.5
30 to 341265.5
25 to 292371.0
22 to 241566.0
20 or 21669.0
18 or 19353.0
17340.5

N = 94

Scores by year taken

Year taken n median score
2008771.0
2009757.0
20101072.0
2011669.8
2012771.0
2013675.3
2014568.0
2015373.5
20161050.8
2017968.0
2018758.5
2019757.0
20201074.3
2021665.0

ryear taken × median score = -0.22 (N = 100)

Robustness and overall test quality

Item analysis

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.