Membership in Mensa is open to persons who have attained a score within the upper two percent of the general population on an approved intelligence test that has been properly administered and supervised. There is no other qualification for initial membership eligibility.
The term “IQ score” is widely used but poorly defined. There are a large number of tests with different scales. The result on one test of 132 can be the same as a score 148 on another test. Some intelligence tests don’t use IQ scores at all. Mensa has set a percentile as cutoff to avoid this confusion. Candidates for membership of Mensa must achieve a score at or above the 98th percentile on a standard test of intelligence (a score that is greater than that achieved by 98 percent of the general population taking the test).
Generally, there are two ways to prove that you qualify for Mensa: either take a test administered by Mensa, or submit a qualifying test score from another approved test. There are a large number of intelligence tests that are “approved”. More information on whether a test you have taken is approved, as well as information on the procedure for taking the Mensa test, can be obtained from the nearest Mensa office. Beware – there are no on-line tests that can be used for admission to Mensa. Feel free to contact Mensa for specific details about eligibility.
Mensa has no other eligibility requirements other than IQ testing. However, many tests are not valid for people under the age of 16. You should contact the nearest Mensa office for more information.
If you’ve never taken an IQ test, or don’t want to bother with getting official copies of your test scores, then Mensa can test you. You will be put in contact with the local testing coordinator who will tell you about specific testing dates and places.
In some countries, a pre-test is available which you can take in the privacy of your home. To find out whether such a test is available in your country, please see National Groups.
When you’ve finished the pre-test, send it back to the address as instructed. It will be scored, and you will be notified of the results. If your score is high enough, you’ll be invited to take a qualifying supervised test. The pre-test is just for practice; you can’t use it to qualify for Mensa even if you score at or above the 98th percentile. Taking a pre-test is not required for admission, however, many people take it simply for the challenge.
Feel free to contact Mensa for more information or to arrange testing. More specific information is also available about testing costs for any of the National Groups.
If you want to take a practice, on-line test, the Mensa Workout is an intelligence quiz in which you have half an hour to answer 30 questions. When you submit your answers, your test is instantly scored, and you can see how your score measures up. The answers to the questions are provided along with discussion of the answers. The Workout is not an IQ test, and can’t be used for qualification to join Mensa.