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. The Triple Nine Society is a non-profit, 501(c)(7) organization incorporated in Virginia, USA. The organization was founded in 1978. As of February 2020, TNS reports a member base of over 1,900 adults residing in 50 countries. The Society's constitution encourages friendship, communication, and intellectual exploration. 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.
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