Qualifications

USK Membership is free of charge and this policy NEVER be changed; Before understanding USK membership qualifications, please refer to 4. Note

ESK Society

Extreme Sigma Korea, ESK Society

≥ IQ 175 (S.D. 15, Wechsler Scale)
IQ 180 (S.D. 16, Stanford-Binet Scale)
≥ IQ 220 (S.D. 24, Cattell Scale)
≥ IQ 220 (S.D. 24, Mensa Korea Scale)

*Requirement of Two Evidence

1.1. Evidence of one standardized IQ test score signed by a professional psychologist (Full document) at or above IQ Four SD, 1st attempt.

1.2. Evidence of one score from a standardized IQ test or reputable high range test(power test created by whom having PhD or its equivalent), at or above IQ 180 sd16, at 1st attempt.

1.3. Or otherwise, having one of full memberships from Mega Society, Omega Society or Olympiq Society would qualify to join ESK, only if having one standardized IQ test score of 4 sigma(full scale) or a doctor degree accredited by the top class university.

(A full member of Mega International Society automatically qualify for the full membership of Extreme Sigma Korea, ESK Society.)

1.4. For any inquiry of ESK membership, please fill out, only via the Contact form.


FSK Society

Four Sigma Korea, FSK Society

≥ IQ 160 (S.D. 15, Wechsler Scale)
≥ IQ 164 (S.D. 16, Stanford-Binet Scale)
≥ IQ 196 (S.D. 24, Cattell Scale)
≥ IQ 196 (S.D. 24, Mensa Korea Scale)

*Requirement of One Evidence

2.1. Evidence of one standardized IQ test score signed by a professional psychologist (Full document) at or above IQ 164 sd16 at 1st attempt.

2.2 Or otherwise, having one of full memberships from Ultranet Society, Epimetheus Society would qualify to join FSK.

2.4. Or otherwise, having a full membersip of TSK with a doctor degree, accredited by the top university would qualify to join FSK

2.5. For any inquiry of FSK membership, please fill out, only via the Contact form.


PSX_20190629_025310

Three Sigma Korea, TSK Society

≥ IQ 145 (S.D. 15, Wechsler Scale)
≥ IQ 148 (S.D. 16, Stanford-Binet Scale)
≥ IQ 172 (S.D. 24, Cattell Scale)
≥ IQ 172 (S.D. 24, Mensa Korea Scale)

*Requirement of One Evidence

3.1. Evidence of one standardized IQ test score signed by a professional psychologist (Full document) at or above IQ 148 sd16 at 1st attempt.

3.2. Or otherwise, having one of full memberships from Triple Nine Society, or One in a Thousand Society(OATHS) would qualify to join TSK.

3.3. For any inquiry of TSK membership, please fill out, only via the Contact form.


4. Note

4.1. There’s few honorary and special members in the United Sigma Korea who have also full membership. Theses memberships are NOT accepted from any application.

4.2. We do NOT accept any standardized IQ test score from Cattell and Stanford-Binet(old), for ESK and FSK membership. 

4.3. We do NOT accept any standardized IQ test score if there are no signature, contact information and full document.

4.4. All of test scores submitted should be contacted with each registered psychologist or test author, clearly. 

4.5. Any IQ score should be recorded in the official psychological association in each country.

4.6. If suspected, the score provided could be confirmed via each country official psychological association.

4.7. All of documents should be written in English language. (except for South Korean.)

4.8. Any applicant (even from South Korea) should have language fluency in English.

 

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Certificate of ESK Society