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Mensa International is the largest and oldest high-IQ society in the world. [3] [4] [5] It is a non-profit organisation open to people who score at the 98th percentile or higher on a standardised, supervised IQ or other approved intelligence test. [6]
Tests deemed to insufficiently correlate with intelligence (e.g. post-1994 SAT, in the case of Mensa and Intertel) are not accepted for admission. [ 5 ] [ 6 ] [ 7 ] As IQ significantly above 146 SD15 (approximately three-sigma) cannot be reliably measured with accuracy due to sub-test limitations and insufficient norming, IQ societies with ...
Janet McDonald – lawyer and author of African American young adult novels [57] Alan McFarland – former MLA for North Down, United Kingdom [58] Jonathan McReynolds – Grammy award-winning gospel artist, actor [59] Henry Milligan – boxer and scholar, 1983 US National Amateur Heavyweight champion [5] Gert Mittring – mental calculator [60]
Intertel was founded in 1966 by Ralph Haines, following the example of Mensa founders Roland Berrill and Lancelot Ware, who wanted to create an association adapted to the gifted needs without any specific restriction of admission (with the exception of a minimum IQ). Intertel thus became the second oldest organization of this kind, Mensa being ...
The Triple Nine Society (TNS) is an international high-IQ society for adults whose score on a standardized test demonstrates an IQ at or above the 99.9th percentile of the human population. [ 3 ] [ 4 ] [ 5 ] The society recognizes scores from over 20 intelligence and academic aptitude tests. [ 6 ]
The most widely used individual tests of cognitive abilities, such as the current editions of the Wechsler Adult Intelligence Scale and the Stanford–Binet Intelligence Scale, [14] report cognitive ability scores as "deviation IQs" with 15 IQ points corresponding to one standard deviation above or below the mean. Stanford–Binet Intelligence ...
Subsequent cycles will allow future changes in adult skills to be monitored and analysed and will provide first indications of where improvements have been achieved and deficits persist. Twenty-four countries participated in PIAAC Round I. Nine additional countries also expressed interest in participating in PIAAC.
I'm also noticed that even using the 50th percentile, the number given for all American males, for instances, 20+ is 175.5 cm (on page 23) and 175.6 cm if you use the mean, when it's listed at 175.3 cm in the chart.