|1986 clipping of the Guinness Book listing of Marilyn Mach vos Savant's IQ of 228 under the category of "Highest IQ", a title which she held until the 1989, after which the category was removed, on the basis that it is becoming incoherent to substantiate such a high IQ.|
“The highest childhood score has been achieved by Marilyn Mach vos Savant who as a 10-year-old achieved a ceiling score for 23-year-olds thus giving her an IQ of 228.”
"Intelligence quotients or IQ's comprise the subject's mental age divided by his chronological age or actual age multiplied by 100, so that an 8-year-old more gifted than an average 16-year-old would have an IQ of 16/8 × 100 = 200. The highest childhood score has been achieved by Marilyn Mach vos Savant of St. Louis, Mo, who as a 10-year-old achieved a ceiling score for 23-year-olds, thus giving her an IQ of 228.(add)
In adult High IQ clubs, admission requirements are not on IQ points but are gauged in percentiles. An IQ exhibited by 1 person in 10,000 for instance coincides with 158 on the Stanford-Binet scale but 187 on the Cattell scale. The most elite ultra-high IQ society is the Mega Society with 26 members with percentiles of 99.9999 or 1 in a million. The topmost scorer in the Mega admission test, devised by its founder Ronald K. Hoeflin, has been 46 out of 48 by Marilyn Mach vos Savant superseding the 43 of Jeff Ward.
The 3 members who scored 197 are Christopher Philip Harding (b Keynsham, England, 1944) of Rockhampton, Australia; Dr Ferris Eugene Alger (b Des Moines, Ia, 1913) of New Hope, Pa, and Dr Johannes Dougles Veldhuis (b Hamilton, Ont, Canada, 1949) of Charlottesville, Va.
The highest IQ published for a national population is 115 for the Japanese born in 1960–61. At least 10 percent of their whole population has an IQ over 130."
|2009 psychology textbook excerpt of Savant defined as the person having the "highest IQ (230) ever officially recorded."|
|Julie Baumgold's 1989 investigative article on Savant, explaining that in the calculation of Savant's enfamous 228 IQ the "derivation is murky". |
|American lawyer Andrew Egendorf.||American Mega Test creator Ronald Hoeflin.||English Guinness Book editor Norris McWhirter.|
“Marilyn told me she had received a perfect score on the Binet when she was ten. I computed it. I divided 22 years 11 months by 10 years 6 months, and her IQ was 218. Marilyn [also] showed me a report card that listed her IQ as 167+.”
“Marilyn asked me to write on her behalf,” he says, and he did. Norris McWhirter, former editor of the Guinness book, says he based vos Savant’s listing on the material from the Mega Society. “I haven’t got anything original,” he says.
“Both the month that Marilyn took the test and the mental age she achieved on it are matters of some question that contribute to the murkiness over the Guinness top score. Her record with the St. Louis board of education shows she took the test in March 1957; she insists she first took it in September 1956.”
“She says documents supporting her claims were provided by a teacher whose name she can’t remember and sent to Christopher Harding, a Mega society member, now in Australia.”
|American psychologist Alan Kaufman.|
“Miss Savant was given an old version of the Stanford-Binet (Terman & Merrill 1937), which did, indeed, use the antiquated formula of MA/CA × 100. But in the test manual's norms, the Binet does not permit IQs to rise above 170 at any age, child or adult. And the authors of the old Binet stated: 'Beyond fifteen the mental ages are entirely artificial and are to be thought of as simply numerical scores.' (Terman & Merrill 1937). . . . the psychologist who came up with an IQ of 228 committed an extrapolation of a misconception, thereby violating almost every rule imaginable concerning the meaning of IQs.”
|Ask Marilyn, Parade Magazine||Robert Jarvik (1982)|
(a) Within 3-years (1986), her "highest IQ" listing got her a job as a newspaper columnist for Parade Magazine, in the Sunday "Ask Marilyn" section;
(b) Within 4-years (1987), her "highest IQ" listing landed her a husband, American physician Robert Jarvik, inventor of the artificial heart, who sought her out after reading an article about her.