Approved High IQ Societies

High IQ Societies from 2 sigma to 5 sigma, in which “sigma” applies to “S.D.” or standard deviation. For example, Mensa = 2 sigma, when S.D. equals 15, 16, or 24 , means 3 times 15, 16, or 24, or 130, 132, and 148, respectively.); This list is for considering the admission of the United Sigma Korea, to the candidate applicant only if having supervised IQ test scores as a full scale; USK membership is free of charge and this policy will NEVER change.


2 Sigma Society ≥ top 2%

IQ 132, SD16, Mensa
IQ 137, SD16, Intertel
IQ 137, SD16, Top One Percent Society

3 Sigma Society ≥ top 0.1%

IQ 148, SD16, TSA Society
IQ 149, SD16, Triple Nine Society
IQ 150, SD16, One in a Thousand Society

4 Sigma Society ≥ top 0.003%

IQ 164, SD16, FSA Society
IQ 164, SD16, Prometheus Society
IQ 164, SD16, Epimetheus Society
IQ 168, SD16, Ultranet Society
IQ 176, SD16, Omega Society
IQ 176, SD16, Mega Society

5 Sigma Society ≥ top 0.00003%

IQ 180, SD 16, ESA Society
IQ 180, SD 16, OLYMPIQ Society
IQ 180, SD 16, Mega International

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