Welcome!

This is a page devoted to tests known as high range IQ tests. These tests have a history of 40+ years, are of experimental nature and aim at estimating intelligence at levels higher (over 2 sigma and ideally over 3-4 sigma of the normal distribution) than the classic timed IQ tests and, hopefully, complementary to them. Before one tries such a test, there are a few things to be cleared out, relevant to every high range IQ test one may meet, in this or other websites.

  • Any such test itself is a set of mental puzzles/riddles and it has to be tried in terms of leisure time activity.
  • It may be hard, easy, approachable, strange, attractive or whatever. Any test of this kind can be called “an IQ test” to the extend that its stats allow it; reliability, correlation to standard psychometric batteries etc. (all of which, presented thoroughly in case of tests to be found in this website). Following texts may enlighten you : Scores of high range tests’ candidates and Some thoughts on high range tests.
  • In case such a tests qualifies as an alternative intelligence assessment tool, relatively precise estimations can be provided up to 164 sd15. Scores over that level are extremely rare (on a normally normed test – their existence in terms of fluid intelligence is even debatable) and are usually given through extrapolation (even in case of standard psychometric batteries). So, when you meet such scores, take them with a grain of salt.

In conclusion and according to the aforementioned, take – first of all – any high range test as some mental puzzle. Go for the challenge, struggle, have fun. If you are more interested in the outcome and not in the challenge, look at each test stats, and according to these, you may know how accurate any result may be.

We all have one common thing : Interest for the field of human intelligence and puzzle solving. So, do your your best, trouble your mind and -above all- have fun!