The Minnesota Multiphasic Personality Inventory (MMPI) and other law enforcement psycholigal assessments are tests that assesses personality traits and psychopathology. It is primarily intended to test people who are suspected of having mental health or other clinical issues. Although it was not originally designed to be administered to non-clinical populations, it can be used to assess psychological stability in workers in ‘high-risk’ professions such as airline pilots, police or workers in the nuclear power industry.

The test is considered a protected psychological instrument, meaning it can only be given and interpreted by a psychologist trained to do so. While it’s commonly administered by computer nowadays (and requires no direct professional involvement during its administration), psychological testing is always preceded by an interview with a psychologist who is doing the testing. After the computer scores the test results, the psychologist writes up a report interpreting the test results in the context of the person’s history and current psychological concerns.