The MMPI is one of the standard tests that is often given in the course of custody evaluations. Abnormally elevated scores on certain scales are considered to be indicative of various kinds of metal illness.
Listed here are the various scales that the MMPI test uses to assess the test-taker's psychopathology (symptoms known to be exhibited by certain groups of mentally disturbed people). Across from each scale is the generally accepted interpretation of what a high score on that scale means.
What many evaluators and mental health professionals fail to take into account when giving psychological tests is the effect that a contentious divorce or custody battle has on the person taking the test. Normal responses may be skewed or distorted in a person undergoing the mental and emotional stresses that accompany divorce. For example, an elevated "Depression (D)" score indicates that the "subject is unhappy, depressed, and pessimistic" -not an unusual state of mind for someone going through a divorce.
In some instances, answering certain questions in a frank manner while divorce and custody issues are a central fixture in one's life may produce a high score on the "Paranoia (Pa)" scale ("subject has strong, irrational suspicions and overestimates own importance"). Some of the questions that could trigger an elevated "Paranoia (Pa)" score are "Someone has it in for me", "I know who is responsible for most of my troubles", and "The future is too uncertain for a person to make serious plans". In the context of a highly conflicted divorce, every one of those statements could be answered "yes" and the answers would likely be valid. Lets face it: Someone does have it in for you, and you do know who is responsible for most of your troubles- your ex.
If you take an MMPI (or other test) and do poorly, obtain a copy of the test results in question and examine the relevancy of the elevated scores to the stresses in your environment. It's quite possible that the responses you gave (that might normally be cause for concern) are entirely reasonable when viewed in the light of divorce related stresses.