Personality Scales for Intelligent Adults - Statistics of True scale

© Jan. 2011 Paul Cooijmans

Introduction

These statistics are from the version of the P.S.I.A. that was in use from 2003 to 2007, and was highly similar to the later Revision 2007. The scores are t-scores (mean = 50, σ = 10) normed on an earlier group (partly overlapping this one), so this group may not have an exact mean and σ of 50 and 10. An explanation of the scale can be found through the test's order page.

Explanatory and analytical remarks regarding the interpretation of the statistics are purposely largely avoided, so it is up to the reader to study the report carefully and thus obtain a clear impression of the test's validity - that is, "what it measures". Although the statistics sometimes reveal an almost chilling discriminative power, experience shows that explicitly observing that in a remark tends to evoke negative responses in persons who recognize themselves ("Your remark betrays that your are biased! The test only measures your personal biases!", etcetera).

Scores on P.S.I.A. True

Contents type: Personality test other than for mental ability.   Period: 2003-2007

33 **
34 *
35 ***
36 **
37 *
38 ******
39 **
40 *****
41 *****
42 **************
43 **********
44 ******
45 ***************
46 **********
47 **********
48 ********
49 **************
50 ****************
51 *******
52 **************
53 *****************
54 ****************
55 ***********
56 ****************
57 *************
58 *******
59 ******
60 *******
61 ********
62 *****
63 ******
64 ***
65 *********
66 ******
67 **
68 **
69 ***
72 *
73 ***
74 *
76 *
82 *

Scores by males

n = 237

33 *
34 *
35 ***
36 **
37 *
38 *****
40 ****
41 *****
42 **********
43 ********
44 ****
45 ***************
46 **********
47 *********
48 *******
49 ************
50 ************
51 *****
52 *********
53 ************
54 ************
55 *********
56 **************
57 **********
58 ****
59 *****
60 ******
61 ********
62 ****
63 ****
64 ***
65 *******
66 *****
67 *
68 **
69 ***
73 ***
74 *
82 *

Scores by females

n = 57

33 *
38 *
39 **
40 *
42 ****
43 **
44 **
47 *
48 *
49 **
50 ****
51 **
52 *****
53 *****
54 ****
55 **
56 **
57 ***
58 ***
59 *
60 *
62 *
63 **
65 **
66 *
67 *
72 *

Correlation of P.S.I.A. True with other tests by Paul Cooijmans

Test n r
Numbers160.72
Odds70.69
Reason Behind Multiple-Choice - Revision 200850.51
Reason - Revision 200850.51
Qoymans Automatic Test #350.48
Cooijmans Intelligence Test - Form 170.48
Qoymans Multiple-Choice #550.47
Numerical Insight Test80.47
Isis Test110.39
Long Test For Genius90.37
Genius Association Test290.36
Cooijmans On-Line Test50.34
Qoymans Multiple-Choice #3250.28
The Final Test220.27
Analogies of Long Test For Genius130.23
Cooijmans Intelligence Test - Form 2200.18
The Test To End All Tests130.13
Reason Behind Multiple-Choice110.13
Associative LIMIT Test60.03
Reason130.02
Spatial section of Test For Genius - Revision 2004260.02
Qoymans Multiple-Choice #17-0.00
Intelligence Quantifier by assessment15-0.01
Space, Time, and Hyperspace23-0.03
Qoymans Multiple-Choice #26-0.04
Qoymans Multiple-Choice #491-0.06
Lieshout International Mesospheric Intelligence Test16-0.09
Spatial Insight Test14-0.09
KIT Intelligence Test - first attempts8-0.14
Test For Genius - Revision 200426-0.15
Association subtest of Long Test For Genius14-0.22
Test of Shock and Awe9-0.26
Cartoons of Shock7-0.38
Verbal section of Test For Genius - Revision 200426-0.41
The Nemesis Test7-0.55
Bonsai Test6-0.64
The Sargasso Test5-0.77
Test of the Beheaded Man5-0.84

Weighted average of correlations: 0.051

Conservatively estimated minimum g loading: 0.23

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 5 score pairs. All known pairs are used to obtain the true, honest statistics; correlations have not been artificially inflated by leaving out ceiling scores, outliers or other anomalies.

Correlation of P.S.I.A. True with tests by others

Test n r
Cito-toets50.67
Raven's Advanced Progressive Matrices (raw)70.66
916 Test50.62
International High IQ Society Miscellaneous tests110.40
Wechsler Adult Intelligence Scales90.29
Sigma Test100.13
Mysterium Entrance Exam120.12
Nonverbal Cognitive Performance Examination200.08
Epiq Tests60.07
Strict Logic Sequences Exam I190.06
Titan Test80.03
Scholastic Aptitude Test (old)80.01
American College Testing program7-0.11
Cattell Culture Fair10-0.13
Logima Strictica 3616-0.14
Unknown tests22-0.16
Culture Fair Numerical Spatial Examination - Final version11-0.20
T.R.I.5-0.27
Graduate Record Examination5-0.51
Raven's Advanced Progressive Matrices (I.Q.)5-0.52
W-876-0.67

Weighted average of correlations: 0.018

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 to obtain the true, honest statistics; correlations have not been artificially inflated by leaving out ceiling scores, outliers or other anomalies.

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 P.S.I.A. True 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.

Typeg loading of P.S.I.A. True on that type
Verbal0.21
Numerical0.81
Spatial-0.19
Logical0.44
Heterogeneous-0.29

There is no overlap between the categories in this table as a result of leaving out compound tests.

Balanced g loading = 0.19

National means for P.S.I.A. True

Country n mean score
Mexico365.67
Turkey460.75
Austria255.00
Bosnia_and_Herzegovina255.00
Canada954.78
Romania254.00
Spain653.83
Italy353.67
Korea_South353.33
France253.00
Philippines253.00
United_States9852.95
Sweden1752.18
United_Kingdom1352.08
China352.00
Belgium851.88
Yugoslavia551.60
Finland551.40
Netherlands3451.29
Brazil750.71
India1250.33
Australia650.00
Germany1249.83
Israel449.50
Bulgaria249.00
New_Zealand249.00
South_Africa449.00
Norway548.40
Argentina248.00
Denmark248.00
Poland348.00

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 of P.S.I.A. True with personal details

Personalia n r
P.S.I.A. Ethics factor2950.86
Observed behaviour210.72
P.S.I.A. System factor470.37
Observed associative horizon90.35
P.S.I.A. Extreme2950.33
P.S.I.A. Orderly2950.25
P.S.I.A. Deviance factor2950.22
P.S.I.A. Rare2950.18
P.S.I.A. Aspergoid2950.16
Gifted Adult's Inventory of Aspergerisms170.11
P.S.I.A. Introverted2950.10
P.S.I.A. Rational2950.07
Disorders (own)2920.05
Disorders (parents and siblings)2910.01
Educational level2920.01
Sex294-0.00
P.S.I.A. Just295-0.03
P.S.I.A. Neurotic295-0.05
Mother's educational level279-0.07
P.S.I.A. Cold295-0.07
Father's educational level277-0.12
P.S.I.A. Antisocial295-0.13
Year of birth292-0.15
P.S.I.A. Cruel295-0.36

Correlation with personal details of P.S.I.A. True - within females

Personalia n r
P.S.I.A. Ethics factor570.83
Gifted Adult's Inventory of Aspergerisms30.62
Disorders (own)550.32
P.S.I.A. Extreme570.25
P.S.I.A. Deviance factor570.23
P.S.I.A. Rare570.21
Disorders (parents and siblings)540.20
P.S.I.A. Orderly570.20
P.S.I.A. Aspergoid570.19
P.S.I.A. Introverted570.12
P.S.I.A. Neurotic570.09
P.S.I.A. System factor100.02
P.S.I.A. Just57-0.02
P.S.I.A. Antisocial57-0.17
Year of birth55-0.18
P.S.I.A. Rational57-0.18
P.S.I.A. Cold57-0.20
Educational level55-0.20
Father's educational level47-0.28
Mother's educational level47-0.28
P.S.I.A. Cruel57-0.31

Correlation with personal details of P.S.I.A. True - within males

Personalia n r
P.S.I.A. Ethics factor2370.86
Observed behaviour190.73
P.S.I.A. System factor370.44
P.S.I.A. Extreme2370.34
Observed associative horizon80.27
P.S.I.A. Orderly2370.24
P.S.I.A. Deviance factor2370.21
P.S.I.A. Rare2370.17
P.S.I.A. Aspergoid2370.16
P.S.I.A. Rational2370.12
P.S.I.A. Introverted2370.10
Gifted Adult's Inventory of Aspergerisms140.05
Educational level2370.05
Disorders (own)237-0.01
P.S.I.A. Just237-0.01
Mother's educational level232-0.03
P.S.I.A. Cold237-0.03
Disorders (parents and siblings)237-0.03
P.S.I.A. Neurotic237-0.07
Father's educational level230-0.09
P.S.I.A. Antisocial237-0.13
Year of birth237-0.14
P.S.I.A. Cruel237-0.37

Correlation with national I.Q.s of P.S.I.A. True

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

Estimated g factor loadings Upward and Downward of specific scores

In parentheses the number of score pairs on which that estimated g factor loading is based. The Upward and Downward values are calculated including the pertinent score itself. It is normal that g factor loadings go down when the range is restricted, so some inevitable depression must be taken into account.

ScoreUpward (n)Downward (n)
300.23 (546)NaN (0)
400.26 (506)0.43 (6)
500.15 (335)-0.37 (182)
60-0.09 (63)0.22 (410)
90NaN (0)0.23 (546)