## ISRC2018 (SEE30) Statistics

##### Last Revision : March 18th, 2018.

**1. 2nd Norm**

Raw Score |
IQ (sd15) |
Raw Score |
IQ (sd15) |

7 |
<110 | 19 |
148 |

8 |
114 | 20 |
151 |

9 |
118 | 21 |
154 |

10 |
122 | 22 |
157 |

11 |
126 | 23 |
160 |

12 |
130 | 24 |
162 |

13 |
131 | 25 |
165 |

14 |
133 | 26 |
169 |

15 |
136 | 27 |
172 |

16 |
139 | 28 |
175 |

17 |
142 | 29 |
182 |

18 |
145 | 30 |
190 |

**2. Histogram**

**3. Statistical Properties & Correlations with other tests**

*Calculated mean on reported scores on standard supervised tests is 143.25 sd15 (N=16). Mean raw score of this sample on ISRC2018 is 18.5. Correlations with supervised psychometric tools, tests by Dr. X. Jouve, as well as some of the oldest high range tests (SLSE and LS series) follow.
*

Parameter |
Value |
Test |
Score Pairs (n) |
r |

Mean |
18.25 | Standard* |
16 | 0.775 |

Median |
18 | WAIS |
6 | 0.712 |

Stand. Deviation |
4.588 | RAPM |
4 | 0.904 |

Variance |
21.051 | Jouve** |
20 | 0.712 |

SEM |
0.699 | JCTI |
7 | 0.904 |

Kurtosis |
-0.35 | C-09 |
5 | 0.729 |

Skewness |
-0.202 | TLAP-R |
3 | 0.996 |

Cronbach’s a |
0.899 | JCCES |
3 | 0.991 |

– | – | Wai*** |
14 | 0.761 |

– | – | SLSE I |
9 | 0.831 |

– | – | SLSE 48 |
3 | 0.965 |

– | – | Lato**** |
10 | 0.818 |

– | – | LS36 |
7 | 0.83 |

* Tests used : WAIS, RAPM, IBF-S, OLSAT, CFIT20R, CCFIT, Unknown Mensa Entrance Test.

** Tests used : JCTI, CSE, TLAP-R, JCCES, C-09, C-10.

*** Tests used : SLSE I, SLSE II, SLSE 48.

**** Tests used : LS36, LS24, LS60.

**4. Notes**

To sum up, ISRC2018 shows high positive correlation with standard supervised IQ tests (r=0.775) and excellent reliability (Cronbach’s alpha=0.899), a fact that makes it a reliable tool for estimating one’s intelligence quotient. It’s also quite clear, yet still preliminary as an observation, that there is a stronger correlation with spatial tests, either supervised or not – something that was expected. Next norm will be generated after a total of 100 submissions.