Membership in the OLYMPIQ Society can be established based on a performance at or above the 5th standard deviation above the statistical mean of the general, unselected population, i. e.:
IQ 175 (s.d. 15, Wechsler scale), or
IQ 180 (s.d. 16, Stanford-Binet scale), or
IQ 220 (s.d. 24, Cattell scale).