Mensa Testing in Sioux Falls
Mensa is the world's oldest and largest high-IQ society, welcoming individuals who score in the top 2% of the population on a standardized intelligence test. This comprehensive guide covers the history of Mensa, membership requirements, Sioux Falls's connection to Mensa, and everything you need to know about testing in Sioux Falls.
Last Updated: August 2026
Mensa History
From its founding in 1946 to today – the story of the world's premier high-IQ society.
Qualifying Scores
Complete guide to accepted tests and score requirements for Mensa membership.
Mensa in Sioux Falls
How many Mensa members are in Sioux Falls and what the community looks like.
Accepted Tests
Full list of standardized tests accepted by Mensa for membership qualification.
Testing Process
What to expect during the Mensa Admission Test and how to prepare.
Schedule Mensa Testing
Book your Mensa admission test or IQ assessment with a licensed psychologist in Sioux Falls today.
The History of Mensa
The Founding: Oxford, England (1946)
Mensa was founded in England in 1946 by Roland Berrill and Dr. Lancelot Ware. The name comes from the Latin word for “table,” reflecting the concept of members meeting as equals. Membership is based on qualifying performance on an accepted standardized intelligence test.
The Early Years
The organization expanded internationally and developed national groups, local chapters, publications, scholarship programs, gifted-youth resources, special-interest groups, and social events. American Mensa is the U.S. national organization.
Mensa's Three Purposes
- Identify and foster human intelligence for the benefit of humanity.
- Encourage research into the nature, characteristics, and uses of intelligence.
- Provide an intellectual and social environment for members.
Sioux Falls' Connection to Mensa
Sioux Falls residents are served by South Dakota Mensa in American Mensa’s Heartland Region 7. Local officers include a proctor and testing coordinator; schedules and locations change.
Mensa Qualifying Scores
To qualify for Mensa, you must score at or above the 98th percentile on an approved standardized intelligence test. This means performing better than 98 out of every 100 people who take the same test.
Qualifying Scores by Test
Note that different tests use different standard deviations, which is why the qualifying scores vary. The consistent requirement is the 98th percentile.
Mensa in Sioux Falls
South Dakota Mensa
Sioux Falls residents are served by South Dakota Mensa, part of American Mensa’s Heartland Region 7. The local group lists chapter officers, a proctor, and a testing coordinator. Event and test-session availability changes across a geographically large state.
Who seeks qualification?
Adults and older teens may pursue qualification for community, curiosity, or intellectual-peer connection. Children generally qualify through accepted prior evidence under current American Mensa rules.
Activities and resources
Members may use local and regional events, newsletters, special-interest groups, scholarships, gifted-youth resources, online groups, and national gatherings. Membership does not replace clinical, educational, or career evaluation.
Accepted Tests for Mensa Qualification
American Mensa accepts scores from approximately 200 different standardized intelligence tests. Tests must be administered by a neutral and qualified third party in a traditional testing environment.
Tests Commonly Administered by Psychologists
- Wechsler Adult Intelligence Scale (WAIS) – FSIQ 130
- Wechsler Intelligence Scale for Children (WISC) – FSIQ 130
- Stanford-Binet Intelligence Scales – IQ 130-132 (depending on version)
- Reynolds Intellectual Assessment Scales – IQ 130
- Differential Ability Scales (DAS) – GCA 130-132
Tests Administered by Schools
- Cognitive Abilities Test (CogAT) – Composite SAS 132
- Otis-Lennon School Ability Test (OLSAT) – Total SAI 132
- Naglieri Nonverbal Ability Test (NNAT) – Nonverbal Ability Index Score 130-132
- Woodcock-Johnson Test of Cognitive Abilities – IQ 131-132
College Preparatory Tests
- SAT (pre-1994) – Combined Verbal & Math 1250+
- GRE (pre-2001) – Combined Verbal & Quantitative 1250+
- ACT (pre-September 1989) – Composite 29+
The Mensa Testing Process
Two Ways to Qualify
There are two primary pathways to Mensa membership:
- Take the Mensa Admission Test: A supervised test administered by Mensa proctors
- Submit prior evidence: If you've already taken an approved test and scored at the 98th percentile, you can submit those scores
The Mensa Admission Test
American Mensa offers local-group test sessions and private testing at approved facilities. Availability near Sioux Falls depends on current South Dakota Mensa, the Sioux Falls region, and national scheduling systems. Key details:
- Duration: 1-2 hours total
- Format: Supervised standardized testing under current American Mensa procedures
- Qualifying: A qualifying result indicates performance at or above the 98th percentile
- Cost: Current official pricing lists $60 for local-group testing and $99 for private testing; promotional pricing may vary
- Retake policy: You can retake the test once every eight weeks
What the Mensa Admission Test Measures
- Pattern recognition – Identifying sequences and relationships
- Logical reasoning – Deductive and inductive thinking
- Spatial visualization – Mental manipulation of objects
- Problem-solving – Complex reasoning under time pressure
Important: The Test is for Admission Only
The Mensa Admission Test is specifically designed for admission to Mensa and does not provide a detailed IQ score or report. You will only be notified whether you qualified for membership. If you want a detailed IQ report with index scores, you should take a professionally administered test like WAIS-IV or SB-5 with a licensed psychologist.
Prior-Evidence and Privacy Checklist
- Confirm that the test edition and score are on American Mensa’s current accepted-test list.
- Request original or certified documentation containing identifying information, test date, scores, and examiner or institution.
- Ask what personal information the provider, school, and Mensa will retain or transmit.
- Do not publish secure test items or full copyrighted protocols.
Sioux Falls Mensa Qualification Planning
Confirm American Mensa’s current accepted-test list and prior-evidence rules before paying for private testing. Verify the test edition, score report, examiner qualification, and original documentation.
Frequently Asked Questions
Mensa was founded in 1946 in Oxford, England by Roland Berrill and Dr. Lancelot Ware. The name comes from the Latin word for "table," symbolizing a round-table society where all members are equal. Today, Mensa has over 150,000 members in more than 100 countries. American Mensa has over 50,000 members.
The requirement is scoring at or above the 98th percentile on an approved intelligence test. This translates to:
- WAIS-IV or SB-5: IQ 130
- Stanford-Binet (older): IQ 132
- Cattell Culture Fair: IQ 148
- SAT (pre-1994): Combined 1250+
There is no authoritative public Sioux Falls-only membership count. South Dakota Mensa and the official American Mensa directory provide the most reliable current local-group information.
The Mensa Admission Test takes 1-2 hours total, including check-in and instructions. The two test batteries are timed and typically run between 20-25 minutes each.
Current official pricing lists local-group admission testing at $60, private testing at $99, and primary annual membership dues at $107. Rates and promotions can change. Professional IQ testing with a licensed psychologist typically costs more because it includes individualized administration, interpretation, feedback, and often a written report.
Yes. Mensa accepts qualifying scores from tests taken at any point in your life, including childhood. You need to obtain an official report from the testing service or school showing your score. Many members join using SAT scores from decades ago.
An unsupervised at-home online quiz cannot qualify you for membership. American Mensa offers a nonqualifying online practice test and supervised admission options, including electronically administered private testing at approved facilities. Prior evidence must meet current documentation and administration rules.
Yes. Candidates age 14 and older may use current supervised testing options, while children under 14 qualify through accepted prior evidence from school or professional testing. Documentation must meet American Mensa's current youth-admission requirements.
The Mensa Admission Test is designed only to determine if you qualify for membership and does not provide a detailed score report. Professional IQ testing (WAIS-IV, SB-5) provides a comprehensive report with Full Scale IQ, index scores, strengths, and weaknesses. Professional testing is better if you need a detailed analysis for school, career, or clinical purposes.
Mensa is primarily a social organization that provides community for people with high IQs. Activities include social events, discussion groups, lectures, game nights, and special interest groups. Mensa also supports gifted education initiatives, scholarships, and research into intelligence.