Qualifications

USIA Membership is free of charge and this policy will not change.

ESA: Extreme Sigma Associate 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)

There are two requirements or alternative to be qualified for ESA Society.

1.1. Requirement: Evidence of one standardized IQ test score estimated by a licensed psychologist (Full documents) as the full scale/battery at or above IQ Four SD, 1st attempt. Please see 4. Note.

1.2. RequirementEvidence of one score from a standardized IQ test at or above IQ 180 sd16 at 1st attempt calculated by a clinical psychologist PhD or psychiatrist MD, or Evidence one result of an independent intelligence test at or above IQ 180 sd16, calculated by a clinical psychologist PhD or psychiatrist MD. (Licensed by English speaking country, mostly US)

1.3. Alternative: Evidence Profoundly High Profile at least from one field in real world. (e.g. top-class education attainment; world-class research achievement in each academic field; winner in a major intellectual championship)

1.4. Alternative: Having one of full memberships from Mega Society, Omega Society or Olympiq Society would qualify to join ESA, only if having one standardized IQ test score of 4 sigma(full scale/battery) or a doctoral degree accredited by Top-Class English speaking university(mostly in US). 

1.5. For any inquiry of ESA membership, please fill out through the Contact form.

*A full member of Mega International Society automatically qualify for the full membership of ESA: Extreme Sigma Associate society.

*ESA members qualified for the full membership are conferred the title of Fellow of ESA Society and USIA.


FSA: Four Sigma Associate 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)

2.1. Requirement: Evidence of one standardized IQ test score, officially certified by a professional psychologist licensed by English speaking country mostly US (required Full documents), as the full scale/battery at or above IQ 164 sd16 at 1st attempt. Please see 4. Note.

2.2. Alternative: Having one of full memberships from Ultranet Society of Mega Foundation, Epimetheus Society and Prometheus Society(for Prometheus, joined before 2013) would qualify to join FSA.

2.3. Alternative: Having a full membership of TSA with having a doctoral degree accredited by an English speaking university(mostly in US) or a degree from a world-class English speaking universiy(mostly in US) would qualify to join FSA. Otherwise, in case of FSA special inviatation, it provides the special membership of FSA and TSA society where USIA psychomeric team do not certify special member’s intelligence estimate of 4 sigma in the official certificate or document, but certify the special membership position as an official member of FSA society.

2.4. For any inquiry of FSA membership, please fill out through the Contact form.


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TSA: Three Sigma Associate 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)

3.1. Requirement: Evidence of one standardized IQ test score, officially certified by a professional psychologist licensed by English speaking country mostly US (required Full documents), as the full scale/battery at or above IQ 148 sd16 at 1st attempt. Please see 4. Note.

3.2. Alternative: Having one of full memberships from Triple Nine Society, or One in a Thousand Society would qualify to join TSA. Otherwise, in case of TSA special inviatation, it provides the special membership of TSA society where USIA psychomeric team do not certify special member’s intelligence estimate of 3 sigma in the official certificate or document, but certify the special membership position as an official member of TSA society.

*TSA accepts few provisional membership(not for FSA or ESA) through ISPE(International Society for Philosophical Enquiry) membership or recognition of an intellectual potential on USIA forum, after approved by USIA membership committee. To be a candidate of provisional membership, having Mensa membership with top 1% score (otherwise, membrrship of Intertel or Top One Percent Society) is required.

3.3. For any inquiry of TSA membership, please fill out through the Contact form.


4. Note

4.1. We only accept standardized IQ test score having licensed psychologist signature, contact information and full documents of the score result, along with the licensed psychologist certificate. All of test scores submitted should be contacted by each registered psychologist. Please make sure we do not accept Cattell, Stanford-Binet(old), and MAT(Miller Analogies Test) score, for FSA and ESA membership.

4.2. A standardized IQ test score should be recorded in the official psychological association in each country. If suspected, the score provided could be confirmed via each country official psychological association and psychologist. For that, the applicant should provide all evidence to USIA membership officer).

4.3. All of documents should be written in English language by the licensed psychologist, and all applicants should have language fluency in English.

4.4. There’s few honorary and special membership by invitation. This kind of membership is not accepted from any application.