Analogieën - Statistics

© March 2007 Paul Cooijmans

This is the analogies subtest of the Netherlandic version of the Long Test For Genius, no longer in use. Currently only the English version of the Test For Genius (Revision 2004) is in use, to prevent candidates from comparing the different language versions to thus gain an advantage. Also, there was very little interest in the non-English versions.

The lack of interest is regrettable, since the problems of the Netherlandic verbal subtests, just as those of the nonverbal subtests, are of an exceptional quality. Some of them live on in the English TFG, and those that have no English versions are now revived in De Golfstroomtest.

Norms

RawProtonorm
0157 or lower
1209
2248
3274
4282
5287
6292
7310
8326
9328
10340
11367
12368
13384
14393
15433
16455
17457
18458
19460
20461
21462
22533
23545
24547
25548
26564
27577
28589
29602
30614
31627
32639
33652
34664
35677
36689
37702
38714
39727
40739
41752
42764
43777
44789
45802
46814
47839
48877
49927
50990

Used for norming are all of the known scores from tests correlating .69 or higher with the Analogies of Long Test For Genius (NL). The used scores are if needed converted to protonorms (or are protonorms themselves), using the most recent conversion table. The raw scores on the Analogies of Long Test For Genius (NL) that form pairs with the used scores are rank-equated to the used scores, and where needed there is interpolation or extrapolation.

Scores

3 *
7 *
10 **
11 *
12 **
13 *
14 **
15 ***
19 *
21 *
22 *
26 *

Correlation with other tests

Test#cor
De Laatste Test30.99
Long Test For Genius (NL)160.92
Drenth number series50.91
Space, Time and Hyperspace170.87
The Test To End All Tests30.83
Short Test For Genius70.77
Cooijmans Intelligence Test - Form 130.7
Numbers120.69
Association subtest of Long Test For Genius (NL)170.59
Mega Test30.4
Cattell Culture Fair9-0.01
Hoeflin Power Test3-0.29
Unknown tests3-0.33

Weighted average of correlations: 0.64

Conservatively estimated minimum g loading: 0.8

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

National averages

Country# scoresAverage score
Netherlands1414.4
Belgium211

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

Correlation with personal details

Personalia#cor
Father's educational level50.7
Educational level60.69
PSIA Rational30.67
PSIA Antisocial30.55
Is male170.41
PSIA Cruel30.35
Mother's educational level60.3
PSIA Cold30.21
Is resident of the European Union3-0.08
PSIA Rare3-0.25
PSIA Neurotic3-0.35
PSIA Just3-0.39
Disorders (own)6-0.4
Disorders (parents and siblings)6-0.4
PSIA Introverted3-0.5
PSIA Ethics factor4-0.63
Year of birth8-0.65
PSIA True3-0.73
PSIA Aspergoid3-0.78
PSIA Extreme3-0.83
PSIA Deviance factor4-0.9
PSIA Orderly3-0.9

Correlation with national IQs

Correlation of this test with national average IQs published by Lynn and Vanhanen:

Scores by age

Age group# testeesAverage score
40 to 44213
35 to 39418.8
30 to 34313.7
25 to 29614.5
22 to 2413
18 or 1917

Scores by year taken

Year taken# testeesAverage score
1996514.8
199727.5
1999315.7
2000119
2001115
200217
2004316.7
2005112

Correlation year taken vs average score = 0.05
n = 17

Reliability and standard error

Using the "split-half" method:

Robustness

Item analysis

Item statistics are not published as that would help future candidates. To detect bad items, answers and comments from testees are studied, as well as, for each problem, the correlation with total score (validity of the item in this test) 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.

Most of this report was generated by software created 2002-present by Paul Cooijmans.