Editing Minnesota Multiphasic Personality Inventory (section)

=== MMPI-2 ===

The first major revision of the MMPI was the MMPI-2, which was standardized on a new national sample of adults in the United States and released in 1989.<ref name="Butcher, J. N. 1989 PI-2"/> The new standardization was based on 2,600 individuals from a more representative background than the MMPI.<ref name="Gregory 2007 392">{{Cite web |title=MMPI®-2 Overview |url=https://www.upress.umn.edu/test-division/mmpi-2 |access-date=2024-05-14 |website=University of Minnesota Press |language=en}}</ref> It is appropriate for use with adults 18 and over. Subsequent revisions of certain test elements have been published, and a wide variety of sub scales were introduced over many years to help clinicians interpret the results of the original 10 clinical scales. The current MMPI-2 has 567 items, and usually takes between one and two hours to complete depending on reading level. It is designed to require a 4.6 grade (Flesh-Kincaid) [[Flesch–Kincaid readability tests|reading level]].<ref name="Gregory 2007 392"/> There is an infrequently used abbreviated form of the test that consists of the MMPI-2's first 370 items.<ref>{{Cite web|url=http://mmpi.umn.edu/|title=Minnesota Multiphasic Personality Inventory-MMPI, MMPI-2, MMPI-A, and Minnesota Reports|website=mmpi.umn.edu}}</ref> The shorter version has been mainly used in circumstances that have not allowed the full version to be completed (e.g., illness or time pressure), but the scores available on the shorter version are not as extensive as those available in the 567-item version. The original form of the MMPI-2 is the third most frequently utilized test in the field of psychology, behind the most used [[Intelligence quotient|IQ]] and [[achievement test]]s.