The Minnesota Multiphasic Personality Inventory (MMPI) is the keystone of all clinical psychological test batteries where the major question concerns the presence or absence of a Diagnostic and Statistical Manual of Mental Disorders (DSM) diagnosis. In this regard, the MMPI is considered the gold standard for psychological test batteries in medical-legal cases because it is capable of providing information not only about psychopathology but about the test-taker’s basic personality, their attitude and credibility, as well as how they are functioning in the world. The MMPI was published in 1943 and has been widely researched for over 70 years. In 1989, the Minnesota Multiphasic Personality Inventory-2 (MMPI-2) was published in response to a growing demand for an MMPI with updated wording and phrasing. Subsequently, the Minnesota Multiphasic Personality Inventory-2-Restructured Form (MMPI-2-RF), that was created from the MMPI-2, was published in July, 2008, in part, to correct some problems identified with the MMPI-2. When you are reviewing a psych report it is important to determine which MMPI was used by the examiner and to obtain the patient’s MMPI test scores from the doctor if those scores do not appear in the report.