## SEE30 (former ISRC2018) Statistics

##### Last Revision : June 2nd, 2018.

**1. 4th Norm**

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

7 |
<=100 | 19 |
143 |

8 |
104 | 20 |
147 |

9 |
108 | 21 |
150 |

10 |
111 | 22 |
154 |

11 |
114 | 23 |
157 |

12 |
120 | 24 |
162 |

13 |
124 | 25 |
166 |

14 |
127 | 26 |
169 |

15 |
131 | 27 |
173 |

16 |
133 | 28 |
175 |

17 |
137 | 29 |
178 |

18 |
140 | 30 |
185 |

**2. Histogram**

A) Grouped scores

B) Independent scores

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

*Calculated mean on reported scores on standard supervised tests is 141.1 sd15 (N=28). Mean raw score of this sample on ISRC2018 is 19.071.
*

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

Mean |
18.38 | Standard* |
28 | 0.802 |

Median |
18 | WAIS |
7 | 0.741 |

Stand. Deviation |
4.088 | RAPM |
6 | 0.917 |

Variance |
16.716 | CCFIT III |
3 | 0.991 |

SEM |
0.411 | Jouve** |
37 | 0.654 |

Kurtosis |
-0.127 | JCTI |
14 | 0.892 |

Skewness |
-0.045 | C-09 |
8 | 0.835 |

Cronbach’s a |
0.898 | TLAP-R |
5 | 0.912 |

– | – | JCCES |
3 | 0.991 |

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

** Tests used : JCTI, CSE, TLAP-R, JCCES, C-09, C-10, Encephalist, NVCPE-R, C-12, EPC-L.

**4. Notes**

To sum up, SEE30 shows very high positive correlation with standard supervised IQ tests (r=0.802 – It has to be noted at this pointed that scores “greater than”, like >135 that are given in FRT-A case are used when computing validity. Not including those ones could lead to a much higher r.) and excellent reliability (Cronbach’s alpha=0.898), 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, something that was, more or less, expected. Next and final norm will be generated at a total of 120 submissions, although no significant changes are to be expected.