Statistics of Numbers

Note: this is a number series test; very unfortunately, criminals are publishing many number series from tests with the answers on the Internet without permission from the tests' authors. It is therefore easy to cheat on such tests, and unwise to accept the tests' scores for admission to IQ societies.

I still score the test because there are people who like taking number series tests, but I do not intend to create new such tests.

I regret this problem especially in the case of this particular test, because it originally was an integral part of my Test For Genius from 1995. After discovering the copyright violation I felt forced to violate the integrity of that extremely beautiful, profound and brilliant creation by removing the numerical subtest. It is sad, but apparently there are people whose dishonesty and desire to help other dishonest persons - cheaters - is so great that they completely disregard intellectual property and the natural necessity to keep test answers secret. Our contempt for them can never be deep enough.

Norms

Numbers consists of 20 number series. Below the scores so far; rounded off to whole numbers for this norming. Numbers is no longer used for admission because of illegal unauthorized answer publication. There may be fraudulent scores among these. I cannot verify fraud and do not accuse anyone, but it is reasonable to assume about 4 of the upper 10 scores might be fraudulent. If so, norms resulting below will be TOO LOW for that range as a direct result (since norms are based on prior scores), so possible culprits punish themselves automatically.

6*
7*
8***
9***** *
10***** ***** **
11***** **
12***** **
13***
14**
15***** **
16***
17**
18*
19*****
20**

Correlation with other tests:

The "Rest" are Nemesis, Chimera Test, Analogies #1, Grail Test, SAT, Concept Mastery, GRE, GMAT, WAIS, LAIT, Stanford-Binet, LSFIT, EIT, IST-70, Thinkfast, CTMM, Drenth Analogies, Quest, NUTE, Wonderlic Personnel Test, ACT, New York High IQ Society Test, Mysterium Entrance.

Used for norming are tests correlating higher than .5. Raw and prior scores are arranged in two columns of numerical order, the highest raw score facing the highest prior IQ (prior scores are if needed converted to an IQ scale with 15 points per standard deviation), etc. For each raw score, the median of the IQs facing it is used to norm that score.

Addition 2005

Scores so far

# testees: 98
Mean: 11.81
SD: 3.26
Male mean: 11.95
Female mean: 9.2 (5 persons)

6*
7**
8*******
9************
10**************************
11*********
12*********
13*******
14***
15*******
16***
17****
18*
19******
20*

National averages

Correlation with other tests

Correlation with personal details

Correlation with national IQs

.05 over 86 pairs.

Reliability and standard error of measurement

Rel = 0.86
SE = 1.2

Scores by age

Scores by year taken

Correlation year taken vs average score = -0.06
n = 96