VGT-FS

VGT-F Statistics

Last Revision : November 12th, 2017.

1. 1st Norm

Raw Score IQ (sd15) Rarity (1/x) Raw Score IQ (sd15) Rarity (1/x)
21 <=124 31 147 1,157
22 127 28 32 150 2,330
23 131 52 33 153 4,873
24 133 72 34 158 18,120
25 134 85 35 160 31,560
26 136 122 36 164 100,730
27 138 177 37 169 472,893
28 140 261 38 173 1,759,737
29 142 391 39 178 10,016,587
30 145 741 40 >=185 136,975,305

2. Histogram

1stnormhistogram

3. Statistical Properties & Correlations with other tests
Calculated mean on reported scores on standard supervised tests is 145.9167 sd15 (N=12). Mean raw score of this sample on VGT-F is 31.083.

Parameter Value Test Score Pairs (n) r
Mean 31.133 Standard* 12 0.801
Median 31  WAIS  5 0.797
Stand. Deviation 3.557 RAPM 4 0.982
Variance 12.649  Jouve**  16  0.826
SEM 0.66 JCTI 6 0.621
Kurtosis 0.463  C09  3 0.975
Skewness -0.757
Cronbach’s a 0.96  –

* Tests used : WAIS, RAPM, MAT, IST70, Unknown Mensa Entrance Test.
** Tests used : JCTI, NVCPE-R, CSE, TLAP-R, JCCES, C09, C10.

4. Notes
To sum up, VGT-F shows high positive correlation with standard supervised IQ tests (r=0.801) and excellent reliability (Cronbach’s alpha=0.96), a fact that makes it a reliable tool for estimating one’s intelligence quotient. Noteworthy in the current candidates’ sample is the quite high mean score on suprevised tests (145.9 sd15). Next norm will be generated after a total of 45 submissions.

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