McKinley, faculty of the University of Minnesota, and first published by the University of Minnesota Press in 1943. The original MMPI was developed by Starke R. Psychologists and other mental health professionals use various versions of the MMPI to help develop treatment plans, assist with differential diagnosis, help answer legal questions ( forensic psychology), screen job candidates during the personnel selection process, or as part of a therapeutic assessment procedure. The Minnesota Multiphasic Personality Inventory ( MMPI) is a standardized psychometric test of adult personality and psychopathology. Minnesota Multiphasic Personality Inventory For the bio-chemical category abbreviated 'MMPI', see Matrix metalloproteinase inhibitor.