The MMPI-2, the 2001-published revision of the original 1989 MMPI, is one of the most widely used personality tests in the field of diagnostic psychology. The test is used as one part of the process of evaluating individuals for possible mental disorders including hypochondria, depression, paranoia, and schizophrenia. As such, it is important that it is reliable and valid for use with as many individuals as possible.
The sample of individuals used to establish norms for the MMPI-2 included "1,138 males and 1,462 females between the ages of 18 and 80 from several regions and diverse communities within the U.S." The MMPI-2 has been translated into Spanish, Hmong, and Canadian French as well as the original English. Developers of the test and its revised editions have done their best to create an instrument that can be reliably used with individuals of both sexes and of color.