The Mega Society, founded in 1982 by Dr. Ronald K. Hoeflin, is a high IQ society open to people who have scored at the one-in-a-million level on a test of general intelligence credibly claimed to be able to discriminate at that level. The Guinness Book of World Records stated that:
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 public profile of the Mega Society increased with the publication of the Mega Test in 1985 by Dr. Hoeflin. Notable people who took the Mega Test, meeting the Mega Society entrance requirements, include author and columnist Marilyn vos Savant, mathematician Solomon W. Golomb, and former governor of New Hampshire and White House Chief of Staff John H. Sununu.
Noesis is the journal of the Mega Society. Brian Wiksell, P.O. Box 366, Solana Beach, CA 92075, is the Administrator of the Mega Society.
Noesis is distributed via email and archived on the Society Web site. Members and non-members who wish to receive it should contact the Editor.
 Hoeflin, Ronald K. “World’s Most Difficult IQ Test.”, Omni magazine, April 1985, pp. 128 ff.
Seipp, Catherine, “Brains — They’re the smartest people in L.A.”, Los Angeles (magazine), November 1987, pp. 210–216.
Graham, Ellen, “For Minds of Mega, the Mensa Test is a Real No-Brainer“, The Wall Street Journal subs. req., April 9, 1992, p. A1.
Simonton, Dean Keith (1994). Greatness: Who makes History and Why. Guilford Press, 225. ISBN 0-89862-201-8.
“Genius Issue“, Esquire (magazine), November 1999.
(1999) Lawrence A. Pervin, Oliver P. John (editors) Handbook of Personality. Guilford Press, 632. ISBN 1-57230-695-5.
Jacobs, A. J. (2004). The Know-It-All: One Man’s Humble Quest to Become the Smartest Man in the World. Simon & Schuster, 243. ISBN 0-7432-5060-5
 “Mind Games: the hardest IQ test you’ll ever love suffering through,” Omni magazine, April 1990, pp. 90 ff.
Baumgold, Julie. “New York magazine”, February 6, 1989.
Anderson, Jack; Dale Van Atta, “Is 176 I.Q. Enough for White House?”, Washington Post, November 28, 1988.
Introduction to the Hoeflin Tests. Similar reports about the actress Uma Thurman are an urban myth.