Qualification for Mensa membership is a score at or above the 98th
percentile on any of a number of standardized IQ tests. Mensa is a not-for-profit
organization whose main purpose is to serve as a means of communication
and assembly for its members. Members receive the American Mensa Bulletin
and the International Journal, and are welcome at Mensa events around the
world.
North Texas Mensa is a local chapter covering the Dallas area; roughly,
zip codes from 75000-75399.