## NPRA-F (INSC ’17) Statistics

##### Last Revision : December 28th, 2017.

**1. 2nd Norm**

Raw Score |
IQ (sd15) |
Rarity (1/x) |
Raw Score |
IQ (sd15) |
Rarity (1/x) |

9 |
<130 | – | 25 |
150 | 2,330 |

10 |
130 | 44 | 26 |
152 | 3,795 |

11 |
132 | 61 | 27 |
154 | 6,284 |

12 |
134 | 85 | 28 |
156 | 10,581 |

13 |
135 | 102 | 29 |
158 | 18,120 |

14 |
136 | 122 | 30 |
160 | 31,560 |

15 |
137 | 147 | 31 |
162 | 55,906 |

16 |
138 | 177 | 32 |
164 | 100,730 |

17 |
139 | 215 | 33 |
166 | 184,606 |

18 |
139 | 215 | 34 |
168 | 344,141 |

19 |
140 | 261 | 35 |
170 | 652,598 |

20 |
140 | 261 | 36 |
172 | 1,258,887 |

21 |
142 | 391 | 37 |
175 | 3,483,046 |

22 |
143 | 482 | 38 |
182 | 43,508,721 |

23 |
145 | 741 | 39 |
190 | 1,009,976,678 |

24 |
147 | 1,157 | 40 |
194 | 5,399,067,340 |

**2. Histogram**

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

*Calculated mean on reported scores on standard supervised tests is 144.38 sd15 (N=12). Mean raw score of this sample on NPRA-F is 25.8.*

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

Mean |
23.844 | Standard* |
12 | 0.816 |

Median |
24 | WAIS |
5 | 0.855 |

Stand. Deviation |
7.961 | RAPM |
4 | 0.989 |

Variance |
63.376 | Jouve** |
26 | 0.803 |

SEM |
1.2 | JCTI |
9 | 0.762 |

Kurtosis |
-0.586 | C-09 |
5 | 0.878 |

Skewness |
-0.287 | C-10 |
4 | 0.581 |

Cronbach’s a |
0.917 | TLAP-R |
3 | 0.934 |

* Tests used : WAIS, RAPM, FRT-B, Unknown Mensa Entrance Test.

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

**4. Notes**

To sum up, NPRA-F shows excellent correlation with standard supervised IQ tests (r=0.816) and reliability (Cronbach’s alpha=0.917), a fact that makes it a reliable tool for estimating one’s intelligence quotient. Interesting is also the high correlation with SLSE I and SLSE II (0.902 (n=11) and 0.972 (n=4), respectively), the two tests that were among the first of their kind. Thus, one could say that a “SLSE III” was born. Next norm will be generated after a total of 75 submissions.