Mensa has only one requirement for membership: a score at or above the 98th percentile on a standardized intelligence test. Mensa accepts the results of nearly 200 tests, including the California Test of Mental Maturity, the Test of Cognitive Skills, the GRE, the Miller Analogies Test, the Stanford Binet, and many others. For more complete information, please visit AML's Prior Evidence Page.
Alternatively, Mensa offers its own test for admissions, which is often cheaper than paying for a professionally-administered intelligence test. Find out more about it here.