Triple Nine Society

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. The Society recognizes scores from over 20 different tests of adult intelligence.[2] The Triple Nine Society is a non-profit, 501(c)(7) organization incorporated in Virginia, USA. The organization was founded in 1978.[3] As of February 2020, TNS reports a member base of over 1,900 adults residing in 50 countries.[3] The Society's constitution encourages friendship, communication, and intellectual exploration.[4] TNS members communicate online, at gatherings, and through Vidya, the Society's bimonthly journal. Dues are set at $10 per year for the internet version of Vidya and $30 per year for the print version.[5]

Triple Nine Society
Triple Nine Society (emblem).svg
TypeHigh IQ society
Official language
Thorsten Heitzmann


The Triple Nine Society was founded in 1978,[3] making it one of the oldest extant high IQ societies, after Mensa (est. 1946[6]), Intertel (est. 1966[7]), and the International Society for Philosophical Enquiry (est. 1974[8]). Executive Committee Officers serve for two-year terms, six by election (Regent, Ombudsman and four Members-at-Large) and three by Appointment with annual performance reviews (Financial Officer, Membership Officer and Vidya Editor). Voting for Officers occurs from February 1 through March 1 inclusive, in even-numbered years.

In 2015 TNS established a 501(c)(3) subsidiary charitable organization, the Triple Nine Society Foundation, to provide scholarships to intellectually gifted students pursuing higher education goals, to educate the public about the needs of very intellectually gifted people, and for other charitable work.


Triple Nine encourages members to freely express their views in keeping with the Society's commitment to friendship and intellectual growth. The preamble to the Triple Nine Society constitution reads as follows:

The Triple Nine Society is committed to friendship, communication, the adventure of intellectual exploration, and a greater realization of individual potentials. It neither sanctions the imposition of one person's philosophy on another nor subscribes to any particular philosophy for its members. It will strive to avoid the insularity of mere exclusiveness. The guiding principle of the Society is democratic and collegial rather than hierarchical. The Society will remain open to innovation and evolution.

TNS publishes a bimonthly journal, Vidya, which contains articles, poetry and other creative content contributed by members conversant with a variety of subjects, as well as Officers' Reports and other official business of the Society. TNS members communicate with one another online through email lists, a Facebook group, two Yahoo! Groups, a LinkedIn group and a scheduled weekly IRC chat; European members have established a group in XING and a French language members-only Yahoo! Group. In the autumn, TNS sponsors an annual meeting in the United States called the "ggg999" meeting,[9] the "ggg" referring to "Global General Gathering".[10] A European meeting ("egg999") is arranged in the spring. TNS also helps its members to organise their own, informal TNS gatherings by maintaining a members-only database and a Member Map.

Qualifying test scoresEdit

To qualify for membership, an applicant must submit a qualifying score earned on any of the standardized tests recognized by the Society; these include IQ tests as well as various college admissions exams and military classification tests.

For IQ tests, a qualifying score corresponds to an IQ of at least 146 for tests with standard deviation of 15 (e.g., WAIS-III/IV/V, Stanford-Binet 5, Raven's APM), at least 149 for tests with a standard deviation of 16 (e.g., Stanford-Binet IV and CTMM), or at least 173 for tests with a standard deviation of 24 (e.g., Cattell III-B).[11] In comparison, Mensa International, a high IQ society with a member base in the tens-of-thousands, admits applicants who score at or above the 98th percentile, which corresponds with an IQ score of at least 130 (SD 15), 132 (SD 16), or 148 (SD 24).

TNS also qualifies applicants based on standardized test scores that have well-established psychometric correlations with IQ, including pre-2005 SAT (1450 or 1520 depending on year taken), pre–November 2001 GRE (1460 or 2180 depending on year taken), LSAT (46, 48, 173 or 730 depending on year taken), ACT (32 or 34 depending on year taken), and the Miller Analogies Test (472 scaled or 85 raw).[2]

Notable membersEdit


  1. ^[bare URL image file]
  2. ^ a b "Test Scores". Triple Nine Society. 2017. Retrieved November 13, 2017.
  3. ^ a b c "What Is TNS?". Triple Nine Society. Retrieved October 14, 2018.
  4. ^ "Constitution of the Triple Nine Society" (PDF). Triple Nine Society. p. 1. Retrieved July 10, 2017.
  5. ^ "How to Join".
  6. ^ "A Brief History of Mensa's International Structure | Mensa International". Retrieved 2021-03-15.
  7. ^ "Intertel - Home". Retrieved 2021-03-15.
  8. ^ "International Society for Philosophical Enquiry". Retrieved 2021-03-15.
  9. ^ "ggg999 – The North American Meeting". Triple Nine Society. Retrieved July 10, 2017.
  10. ^ "Vidya 258" (PDF). Triple Nine Society. Retrieved March 31, 2019.
  11. ^ Hunt, Earl (2011). Human Intelligence. Cambridge: Cambridge University Press. p. 8. ISBN 978-0-521-70781-7. OCLC 900268273.
  12. ^ Haring, Bruce (12 October 2019). "Robert Forster Dies". Deadline Hollywood. Retrieved Oct 27, 2019.
  13. ^ "Andrew York's article" (PDF). Retrieved 2020-03-20. Bowling Balls and Binary Switches

Further readingEdit

External linksEdit