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A high-IQ society is an organization that limits its membership to people who have attained a specified score on an IQ test, usually in the top two percent of the population (98th percentile) or above. These may also be referred to as genius societies. The largest and oldest such society is Mensa International, which was founded by Roland Berrill and Lancelot Ware in 1946.

Entry requirements

High-IQ societies typically accept a variety of IQ tests for membership eligibility; these include WAIS, Stanford-Binet, and Raven's Advanced Progressive Matrices, amongst many others deemed to sufficiently measure or correlate with intelligence. Tests deemed to insufficiently correlate with intelligence (e.g. post-1994 SAT, in the case of Mensa and Intertel) are not accepted for admission. 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 cutoffs significantly higher than four-sigma should be considered dubious.

Societies

Some societies accept the results of standardized tests taken elsewhere. Those are listed below by selectivity percentile (assuming the now-standard definition of IQ as a standard score with a median of 100 and a standard deviation of 15 IQ points). Since the 1960s, Mensa has experienced increasing competition in attracting high-IQ individuals, as various new groups have emerged with even stricter and more exclusive admissions requirements. Notable high-IQ societies include:

See also

• IQ classification
• Level of measurement § Ordinal scale

References

1. ^ Groeger, Lena (January 1, 2015). "When High IQs Hang Out". Scientific American. Retrieved January 29, 2021.
2. "The rise of children joining high-IQ society Mensa". BBC News. November 26, 2019. Retrieved January 29, 2021.
3. ^ "American Mensa Celebrates Its Diamond Jubilee". American Mensa. Retrieved January 29, 2021.
4. Percival, Matt (September 8, 2008). "The Quest for Genius". Retrieved June 26, 2015.
5. "Qualifying test scores". American Mensa. Retrieved January 24, 2019.
6. "Intertel - Join us". www.intertel-iq.org. Retrieved January 24, 2019.
7. "Test Scores". www.triplenine.org. Retrieved January 24, 2019.
8. "IQ values explained". www.triplenine.org. Retrieved January 24, 2019.
9. Perleth, Christoph; Schatz, Tanja; Mönks, Franz J. (2000). "Early Identification of High Ability". In Heller, Kurt A.; Mönks, Franz J.; Sternberg, Robert J.; et al. (eds.). International Handbook of Giftedness and Talent (2nd ed.). Amsterdam: Pergamon. p. 301. ISBN 978-0-08-043796-5. norm tables that provide you with such extreme values are constructed on the basis of random extrapolation and smoothing but not on the basis of empirical data of representative samples.
10. Urbina, Susana (2011). "Chapter 2: Tests of Intelligence". In Sternberg, Robert J.; Kaufman, Scott Barry (eds.). The Cambridge Handbook of Intelligence. Cambridge: Cambridge University Press. pp. 20–38. ISBN 9780521739115. is just one of the reasons to be suspicious of reported IQ scores much higher than 160
11. Schregel, Susanne (December 1, 2020). "'The intelligent and the rest': British Mensa and the contested status of high intelligence". History of the Human Sciences. 33 (5): 12–36. doi:10.1177/0952695120970029. ISSN 0952-6951. S2CID 227187677.
12. "About Us". Mensa International. 2022. Retrieved September 9, 2022.
13. "Intertel - Home". www.intertel-iq.org. Retrieved July 6, 2023.
14. "What is TNS?". Triple Nine Society. 2022. Retrieved September 8, 2022.

Further reading

• Kaufman, Alan S. (2009). IQ Testing 101. New York: Springer Publishing. ISBN 978-0-8261-0629-2.
• Shurkin, Joel (1992). Terman's Kids: The Groundbreaking Study of How the Gifted Grow Up. Boston (MA): Little, Brown. ISBN 978-0-316-78890-8.
  • Frederic Golden (May 31, 1992). "Tracking the IQ Elite : TERMAN'S KIDS: The Groundbreaking Study of How the Gifted Grow Up, By Joel N. Shurkin". Los Angeles Times. Archived from the original on November 8, 2012.
• Terman, Lewis Madison; Merrill, Maude A. (1937). Measuring intelligence: A guide to the administration of the new revised Stanford-Binet tests of intelligence. Riverside textbooks in education. Boston (MA): Houghton Mifflin.

• High-IQ societies