The Final Test statistics

Norms

The scores so far (62 scores):

02*
04*
05*
12**
14*
15***
16*
17**
18**
20***
21***
22****
23**
24**
25****
26***
27**
28*
29**
31**
32***
33***
34**
36**
38****
39**
42*
45*
46*
47*

Correlation with other tests:

Test	#	cor
Chimera Test	4	0.99
Test To End All Tests	9	0.93
Titan Test	9	0.9
Long Test For Genius	16	0.88
Sigma Test	4	0.85
OCIP	5	0.84
Analogies of LTFG	18	0.8
SAT (old)	7	0.8
CHART	7	0.79
Short Test For Genius	15	0.79
Mysterium Entrance Exam	4	0.78
Association Subtest of LTFG	19	0.77
Space, Time & Hyperspace	21	0.77
Mega Test	17	0.71
G-Test	4	0.67
Nemesis Test	4	0.63
Numbers	13	0.61
Cooijmans Intelligence Test	11	0.6
GRE	7	0.42
Logima Strictica 36	5	0.42
Analogies #1	7	0.36
Unknown tests	9	0.29
Miller Analogies	8	0.15
W87	13	0.15
Evens	5	0.05
Encephalist-R	4	-0.02
Opus	4	-0.07
Qoymans Multiple-Choice	8	-0.14
Power Test	4	-0.29

Mean correlation: 0.532

For norming, used are tests correlating .79 or higher. Raw and prior scores are arranged in two columns of numerical order, the highest raw score facing the highest prior IQ (prior scores are if needed converted to an IQ scale with 15 points per standard deviation), etc. For each raw score, the median of the IQs facing it is used to norm that score. Scores 48 to 52 are extrapolated.

Addition September 2008

Scores

# Candidates: 110
Median: 26.0
Quartile deviation: 6.5
Range: 48
Maximum possible: 52
Mean: 26.7
Standard deviation: 10.08
Male median: 27.0
Female median: 22.0 (# females: 7)
Hardness: 0.50
Resolution: 0.41

0	*
2	*
4	*
5	*
7	*
10	*
11	**
12	***
14	**
15	***
16	*
17	***
18	**
20	*****
21	*****
22	*****
23	**
24	**
25	*******
26	********
27	****
28	****
29	****
30	*
31	**
32	******
33	*****
34	**
35	**
36	****
37	**
38	*****
39	****
41	***
42	*
44	*
45	*
46	*
47	*
48	*

Scores by males

n = 102

0	*
5	*
7	*
10	*
11	*
12	**
14	**
15	***
16	*
17	***
18	**
20	*****
21	*****
22	***
23	**
24	**
25	******
26	********
27	****
28	****
29	****
30	*
31	**
32	******
33	*****
34	**
35	**
36	****
37	*
38	*****
39	****
41	***
42	*
44	*
45	*
46	*
47	*
48	*

Scores by females

n = 7

2	*
4	*
12	*
22	**
25	*
37	*

Correlation with other tests

Test	#	cor
Spatial Insight Test	8	0.84
Cartoons of Shock	13	0.83
Chimera High Ability Riddle Test	8	0.81
KIT Intelligence Test	7	0.80
Test of Shock and Awe	16	0.77
Long Test For Genius	27	0.76
Titan Test	16	0.76
Omega Contemplative Items Pool	7	0.76
Analogies of Long Test For Genius	31	0.76
The Test To End All Tests	29	0.76
Reason Behind Multiple-Choice	9	0.74
Scholastic Aptitude Test (old)	10	0.74
Short Test For Genius	20	0.73
Association subtest of Long Test For Genius	30	0.72
Reason	9	0.71
G-test	6	0.70
Cooijmans Intelligence Test - Form 1	16	0.69
Qoymans Multiple-Choice #4	21	0.66
Strict Logic Sequences Exam I	9	0.66
The Nemesis Test	11	0.65
Ultra Test	6	0.64
Test For Genius - Revision 2004	17	0.61
Unknown tests	13	0.61
Cooijmans On-Line Test	6	0.61
Qoymans Multiple-Choice #3	18	0.61
Mega Test	19	0.61
Verbal section of Test For Genius - Revision 2004	17	0.61
Numbers	22	0.60
Analogies #1	12	0.60
Space, Time and Hyperspace	38	0.60
Nonverbal Cognitive Performance Examination	11	0.59
Lieshout International Mesospheric Intelligence Test	13	0.54
Cooijmans Intelligence Test - Form 2	9	0.53
Sigma Test	7	0.52
Spatial section of Test For Genius - Revision 2004	17	0.52
Genius Association Test	23	0.50
Bonsai Test	12	0.46
Culture Fair Numerical Spatial Examination - Final version	11	0.39
Associative LIMIT Test	8	0.39
Mysterium Entrance Exam	11	0.37
Logima Strictica 36	10	0.37
International High IQ Society Miscellaneous tests	8	0.34
Isis Test	8	0.32
Graduate Record Examination	10	0.30
Miller Analogies Test (raw)	10	0.25
Qoymans Multiple-Choice #1	14	0.21
Odds	6	0.20
International High IQ Society Verbal Test	13	0.10
916 Test	6	0.01
Evens	8	-0.02
Qoymans Automatic Test #1	6	-0.17

Weighted average of correlations: 0.584

Conservatively estimated minimum g loading: 0.76

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 6 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 medians

Country	# Scores	Median score
Germany	2	39.5
United_Kingdom	7	39.0
Israel	2	34.0
Canada	5	32.0
Belgium	4	28.5
Finland	7	28.0
Malta	2	26.5
United_States	45	25.0
Sweden	3	24.0
Australia	4	23.5
Brazil	3	21.0
Singapore	2	1.0

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 personal details

Personalia	#	cor
Is resident of the European Union	13	0.57
Raven's Advanced Progressive Matrices (raw)	4	0.39
Cattell Culture Fair	7	0.39
Observed associative horizon is wide	13	0.37
PSIA True	19	0.34
Observed behaviour is good	23	0.34
PSIA Ethics factor	33	0.33
PSIA Extreme	19	0.26
Is male	109	0.24
Year of birth	103	0.19
Mother's educational level	44	0.18
PSIA Orderly	19	0.18
Gifted Adult's Inventory of Aspergerisms	13	0.17
Father's educational level	44	0.12
W-87	14	0.07
PSIA Rare	19	0.05
PSIA Cold	19	0.02
PSIA System factor (phased out)	16	0.01
PSIA Deviance factor	33	0.01
Educational level	46	-0.02
Disorders (own)	46	-0.05
PSIA Rational	19	-0.06
Number of characters in candidate's name as registered	110	-0.08
PSIA Neurotic	19	-0.09
PSIA Antisocial	19	-0.09
Wechsler Adult Intelligence Scales	8	-0.10
PSIA Introverted	19	-0.10
Raven's Advanced Progressive Matrices (IQ)	7	-0.14
PSIA Aspergoid	19	-0.19
PSIA Cruel	19	-0.30
Disorders (parents and siblings)	45	-0.39
PSIA Just	19	-0.47

Correlation with personal details - within females

Personalia	#	cor
Year of birth	7	0.49
Number of characters in candidate's name as registered	7	-0.39

Correlation with national I.Q.s

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

r = 0.12
n = 97

Reliability

Split-half = 0.93
Cronbach's alpha = 0.92

Error

Standard error = 2.7 raw score points
Quartile error = 1.8 raw score points
Range of error = 12.9 raw score points

Scores by age

Age group	# Scores	Median score
70 to 74	1	12.0
55 to 59	3	21.0
50 to 54	6	31.5
45 to 49	10	29.0
40 to 44	13	26.0
35 to 39	13	27.0
30 to 34	17	28.0
25 to 29	14	30.5
22 to 24	6	30.5
20 or 21	4	35.0
18 or 19	5	22.0
17	2	29.5
16	1	22.0
14	1	14.0

Scores by age - within females

Age group	# Scores	Median score
70 to 74	1	12.0
55 to 59	1	4.0
50 to 54	1	37.0
45 to 49	1	25.0
40 to 44	2	12.0
35 to 39	1	22.0

Scores by year taken

Year taken	# Candidates	Median score
1996	1	4.0
1997	10	21.5
1998	3	15.0
1999	7	22.0
2000	14	27.5
2001	15	27.0
2002	9	24.0
2003	10	27.0
2004	18	30.5
2005	14	26.0
2006	2	24.0
2007	3	38.0
2008	4	28.5

Correlation year taken versus median score = 0.75
n = 110

Robustness and overall test quality

Rob = 0.85
Quality = 0.80

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 (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.