The Mega Society is a high IQ society open to people who have scored at the one-in-a-million level on a particular test of general intelligence, called the Mega Test, claimed to be able to discriminate at that level. It was founded in 1982 by Ronald K. Hoeflin to facilitate psychometric research.
The public profile of the Mega Society increased with the publication of the Mega Test in 1985 by Hoeflin.