Minnesota Personality Test to Diagnose Mental Illness and Lies

The Minnesota Multiphase Personality Inventory, also known as the Minnesota Personality test, is a personality instrument comprised of 567 questions, which takes up to 90 minutes to complete. The test is considered one of the most accurate personality tests that you can take for this reason- it is extremely detailed and accurate. With 567 questions, you would have to expect the best!

Originally developed by Starke Hathaway and J.C. McKilney at the University of Minnesota in the late 1930's, the Minnesota Personality test is one of the oldest personality tests in existence today. However, the test is not without revisions, with revisions occurring in 1989 and 2001. The main purposed for the revisions was that the original test did not include so many questions, and many experts did not believe the original test was as accurate as possible.

The Minnesota test is a measure that is given to diagnose mental illnesses, and is designed for patients 18 years of age or older. The Minnesota Personality test has 10 basic scales that are used to diagnose or indicate different mental illness conditions. These 10 scales are hypochondriacs (physical well being), depression, hysteria, psychopathic deviate (social deviation in any way), masculinity/femininity (originally designed to detect homosexual tendencies, but was not effective at determining or detecting homosexual tendencies), paranoia, psychasthenia (originally used to detect excessive doubts, but this scale is no longer used today), schizophrenia, hypo-mania, and social introversion (withdrawal from social functions). The last scale, social introversion, was later added on to the test, and did not appear on the original test from the 1930's.

Free Online Pre-Employment Personality Test

Test to Measure Lies

In addition to the primary diagnostic scales, the Minnesota Personality test also excels in that it attempts to detect if you are lying, or to see if you are trying to present yourself in a “more favorable light”. The scales involved include the L scale (the lying scale), the F scale (the faking scale, this means that you are faking good or bad responses), the K scale (the defensiveness scale), the TRIN scale (which means that the results are inconsistent, with 23 paired questions that are the opposite of each other), the VRIN scale (which means that the results are inconsistent, but not related to the 23 paired questions on the TRIN scale), the Fb scale (which may mean that you grew tired of answering all of the questions on the test), and the “?” scale (which is the number of questions that were not answered). If the “?” scale consists of 30 or more questions that were unanswered, the test is recommended to be declared invalid.


Once you complete the Minnesota Personality test, your test results will be processed and interpreted by a psychologist or certified clinical worker. The results do not compare you with a percentile rank (as some tests do), but instead are compared for higher areas of a particular scale, compared to various normal averages. For instance, if you scored high on the paranoia scale, but also high on other scales, it may not necessarily mean that you are paranoid- further studying of your responses is required. This is the main secret to the accuracy of the test- you simply aren't graded pass or fail, your results are actually analyzed and patterned to determine troublesome areas.

If you are facing or taking the Minnesota Personality test, the best advice that anyone can give you is to simply take your time, and answer the questions truthfully. The test can determine if you are lying or embellishing the truth, so be sure to tell the honest truth when taking this test. The test will take approximately 90 minutes, so be sure to eat well beforehand, and to get plenty of sleep.

Practice with Free Aptitude Tests

Share Your Thoughts!

We find value in differences between learning, interpreting and overall opinions. Please share your thoughts freely about this topic, but always remain respectful. Thank you for your contribution.

What Other Visitors Have Expressed

Click below to see contributions from other visitors to this page...

Relevance Beyond US Cultural Context 
I recently took this test & found a large number of the questions to be so silly that it was very hard to take any of it seriously. In particular, I found …

Click here to write your own.

Recent Articles

  1. Gary Smalley personality test

    Oct 18, 17 03:58 AM

    Gary Smalley personality test reveals four types of personalities. Take it to know your type

    Read More

  2. Myers Briggs Personality Tests

    Oct 16, 17 02:36 AM

    A brief note on characteristics of Myers Briggs Personality Tests

    Read More

  3. Graduate aptitude test in engineering

    Oct 09, 17 03:34 PM

    Graduate aptitude test in engineering serves to be a qualifying test for several PSUs such as NTPC, BHEL, IOCL, etc.

    Read More