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by camper grass on December 18th, 2005
On a more modern level, the highest IQ ever recorded was by Marilyn vos Savant with 228; however that is a mental status ratio IQ (used for children). Adult IQs are measured by standard deviations, in which her adult IQ would compute to about 185, which is lower than famous chess master Bobby Fischer (187).
Other contenders would be Leonardo da Vinci, estimated at ~200. Another would be William James Sidis, estimated also at a similar level. Statistically speaking, the highest possible IQ would be a probability of about SD 6.7, or 1 in 100 billion (total number of people who ever lived). In SD IQ, that is about 200. Thus, theoretically speaking, that is the maximum IQ possible. All the preposterous stories about people with IQs of well over 200 are impossible. In fact, no one has probably ever reached an adult IQ of 200.
There are, however, close contendors. An example of an ultra-elite group of intellectuals would be the Giga society, which accepts people only with an IQ of 196 or higher. This would mean a 1 in 1 billion probability. Currently, there are 6 members, which would technically mean these are the 6 smartest people in the world.
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Comments
Marilyn vos saven did not have an adult IQ of 228 as she was only 10 years old when she done the IQ test so in fact if her IQ was to be determind based upon an adults IQ then that would mean her adult IQ would be around 185. A child's IQ test and an Adults are Determind differently
by martin.aps on March 9th, 2011