British Mensa uses the Cattell III B test, with which I am not familiar. It appears that very few are familiar with it, including Google. From what I can piece together, it is based on a 24 standard deviation, which varies from most other IQ test I'm aware of, which are either 16 or 15 (most today are 15).
"162" isn't a de facto great score any more than "36" is a great score, unless put in the context of an ACT exam.
162 on a 24SD test is 2.58SD, or 99.5 percentile. While certainly a good score, and in the "top 1%", it is the equivalent of 138 on the tests used by Davidson and wouldn't qualify.
But if the test ceiling is a 162 score, the IQ is really unknown. In no way can it be logically argued that this is "higher than" Hawking, Einstein, or anyone with an IQ estimated on a 15SD scale which everyone else uses.
Last edited by Cranberry; 02/14/17 04:11 PM.
