Long Test For Genius statistics

© July 2003 Paul Cooijmans

Note: This report concerns the English version of the L.T.F.G.

Norms

Scores

The test consists of 3 subtests: Association (39 items), Analogies (39) and Space, Time and Hyperspace (28). Spatial items are weighted by 3 in Total score (G). The scores so far out of 162:

# testees: 60
Mean: 64.4
SD: 20.72
Male mean: 65.6
Female mean: 53.5 (6 persons)

13*
27**
29*
30*
34**
36*
38*
43*
45*
46*
47*
48*
49*
53*
54***
55*
57**
58*
61**
62*
63**
64*
66**
68*
69*
70*
71*
72**
73*
75***
76*
77*
78***
79**
84*
85*
87***
90**
94*
95*
98*
102*
108*

Correlation with other tests

Test#cor
Miller Analogies40.92
Space, Time & Hyperspace600.91
Final Test160.88
Test To End All Tests50.87
Cooijmans Intelligence Test80.85
Analogies of LTFG600.78
Association Subtest of LTFG600.75
Short Test For Genius90.73
Bonsai Test40.68
Numbers200.65
Titan Test50.61
SAT (old)60.58
Sigma Test40.54
Unknown tests60.53
NVCP50.4
Qoymans Multiple-Choice #380.37
Cattell Culture Fair70.3
Mega Test110.28
Mysterium Entrance Exam50.2
Logima Strictica 3650.19
W8780.19
WAIS40.07
Qoymans Multiple-Choice #26-0.15
GRE4-0.22
Analogies #15-0.25
Encephalist-R4-0.32
Qoymans Multiple-Choice7-0.47
Raven APM6-0.65

Used for norming are the scores from tests correlating .85 or higher. Raw and prior scores, converted to the same scale if needed, are put in two columns of numerical order, the highest facing the highest etc. Norms are obtained by equating the ranks of the raw and prior scores. Scores outside 13 and 108 are extrapolated.

Intercorrelations of the subtests

Association - Analogies: .7
Association - Space, Time and Hyperspace (STH): .46
Analogies - STH: .52

Additional statistics October 2008

Paul Cooijmans

Scores

13 *
27 **
29 *
30 *
34 ***
35 *
36 *
37 *
38 **
43 *
45 *
46 *
47 *
48 *
49 *
52 *
53 *
54 ***
55 *
57 **
58 **
59 *
61 **
62 *
63 ****
64 *
66 ***
68 **
69 *
70 **
71 *
72 ***
73 ***
75 ***
76 *
77 *
78 ***
79 ****
80 *
82 **
84 *
85 *
87 ***
88 *
90 **
94 *
95 *
98 **
102 **
108 *

Scores by males

n = 76

27 *
29 *
30 *
34 **
35 *
36 *
37 *
38 **
43 *
45 *
46 *
47 *
48 *
49 *
52 *
53 *
54 ***
55 *
57 **
58 **
59 *
61 **
62 *
63 ****
64 *
66 ***
68 **
69 *
70 **
71 *
72 **
73 ***
75 ***
76 *
78 ***
79 ****
80 *
82 *
84 *
85 *
87 ***
88 *
90 **
94 *
95 *
98 *
102 **
108 *

Scores by females

n = 7

13 *
27 *
34 *
72 *
77 *
82 *
98 *

Correlation with other tests

Test#cor
Spatial Insight Test51.00
Space, Time and Hyperspace830.92
TRI60.91
Cooijmans Intelligence Test - Form 250.87
The Nemesis Test60.86
Test For Genius - Revision 2004120.84
Spatial section of Test For Genius - Revision 2004120.81
Bonsai Test80.79
The Final Test270.76
Analogies of Long Test For Genius830.76
Association subtest of Long Test For Genius830.74
Miller Analogies Test (raw)50.73
Short Test For Genius120.72
Cooijmans Intelligence Test - Form 1140.72
Nonverbal Cognitive Performance Examination150.69
Strict Logic Sequences Exam I70.65
Associative LIMIT Test50.65
Qoymans Multiple-Choice #4130.65
Genius Association Test180.64
Test of Shock and Awe70.63
Cartoons of Shock50.62
The Test To End All Tests120.61
Titan Test80.59
Scholastic Aptitude Test (old)60.58
Numbers260.57
Qoymans Multiple-Choice #3170.55
Verbal section of Test For Genius - Revision 2004120.55
Culture Fair Numerical Spatial Examination - Final version50.47
Unknown tests70.46
Graduate Record Examination60.42
Lieshout International Mesospheric Intelligence Test80.38
Logima Strictica 3690.30
Analogies #180.29
Mega Test110.28
Mysterium Entrance Exam90.26
Sigma Test100.22
Encephalist - R60.11
Qoymans Multiple-Choice #28-0.10
Qoymans Multiple-Choice #19-0.14
International High IQ Society Verbal Test6-0.30

Weighted average of correlations: 0.656

Conservatively estimated minimum g loading: 0.81

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 are not artificially inflated by leaving out ceiling scores, outliers or other anomalies.

National medians

Country# ScoresMedian score
Canada382.0
Australia377.0
Finland575.0
United_Kingdom874.0
Greece363.0
Sweden763.0
United_States2463.0
Norway254.5

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 personal details

Personalia#cor
Is resident of the European Union40.83
Observed behaviour is good120.82
PSIA Rational80.78
Observed associative horizon is wide80.69
PSIA Just80.51
PSIA True80.42
PSIA Ethics factor240.40
PSIA Orderly80.40
Wechsler Adult Intelligence Scales50.32
PSIA Introverted80.27
PSIA Antisocial80.22
W-8780.19
PSIA System factor (phased out)170.17
Is male830.12
Educational level280.10
PSIA Deviance factor240.09
PSIA Cold80.08
Year of birth800.02
PSIA Extreme80.01
PSIA Cruel8-0.03
Disorders (parents and siblings)27-0.04
Number of characters in candidate's name as registered83-0.05
Disorders (own)27-0.05
Cattell Culture Fair10-0.06
PSIA Rare8-0.06
PSIA Neurotic8-0.10
PSIA Aspergoid8-0.11
Father's educational level25-0.21
Mother's educational level25-0.43
Raven's Advanced Progressive Matrices (I.Q.)10-0.55
Gifted Adult's Inventory of Aspergerisms12-0.58

Correlation with personal details - within females

Personalia#cor
Year of birth70.46
Number of characters in candidate's name as registered70.08

Correlation with national I.Q.s

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 like this, but careful study of the Upward and Downward columns may reveal possible scores below or above which the test loses validity altogether.

ScoreUpward (n)Downward (n)
10.80 (710)NaN (0)
20.79 (707)NaN (0)
30.79 (696).46 (17)
40.74 (590).60 (84)
50.74 (517).72 (143)
60.69 (420).68 (239)
70.65 (310).72 (368)
80.65 (151).73 (525)
90.69 (51).76 (655)
100.90 (13).78 (686)
110NaN (0).80 (710)

Overall test quality

Subtest statistics

For statistics of the subtests Association, Analogies, and "Space, Time and Hyperspace", see the separate statistical reports for each of those.