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Aug 14, 2022 · His name was William James Sidis and his IQ was eventually estimated to be between 250 and 300 (with 100 being the norm). His parents, Boris and Sarah, were pretty intelligent themselves. Boris was a famed psychologist while Sarah was a doctor.
Helena may have falsely stated that the Civil Service exam William took in 1933 was an IQ test and that his ranking of 254 was an IQ score of 254. It is speculated that the number "254" was actually William's placement on the list after he passed the Civil Service exam, as he wrote in a letter to his family. [43]
Nov 24, 2021 · Though no scorecards or test reports concerning his intelligence exist today, considering Sidis’ age and academic brilliance, his IQ score is estimated by some to be somewhere between 50 and...
Dec 17, 2023 · Helena Sidis William’s sister told me that a few years before his death, her brother Bill took an intelligence test with a psychologist whose score was the highest ever. Regarding IQ, the psychologist said that the number would be between 250 and 300. William Sidis took general intelligence tests late in life for civil servants in New York ...
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Mar 26, 2022 · This allowed William to develop great logical skills which led him to obtain the highest score ever recorded since the IQ test has existed, equal to 254. An impressive value when compared, for example, to the 160 of Albert Einstein and Stephen Hawking and the 148 required to access the Mensa, the organization that encompasses 2% of the most ...
Jan 11, 2024 · Jan 11, 2024. A Brief History of William James Sidis. William James Sidis photographed at his Harvard graduation in 1914. Public Domain. The average person’s IQ is between 90 and 109. People...
Nov 7, 2006 · Though he probably would not have put much stock in formal measures of intelligence, Sidis’s sister later claimed that a psychologist had administered an IQ test on her brother, arriving at an estimated score of 250-300. In such a test, 100 is average and over 140 is considered genius.
