The personality test, developed by the National Institute of Mental Health, is now considered to be the gold standard for diagnostics of personality disorders.
Now, researchers are exploring ways to make it more useful.
Dr. Thomas Luebke, a behavioral psychologist at the University of Pennsylvania, told CBS News that the new test is based on a study he conducted with his colleagues in 2005.
The test uses questions that ask people to assess their personality.
If they don’t like their answer, the person gets a score that indicates the severity of their disorder.
Luebkes study looked at the personality of 8,000 people from around the country who had a personality disorder and were then asked to complete a series of questions that asked them to rate the person’s emotional and behavioral states.
The more negative the rating, the more severe the disorder.
The researchers also asked participants to rate their emotional states on a scale of one to five.
Luesbke says the personality test is the most accurate test of personality and is more accurate than the Diagnostic and Statistical Manual of Mental Disorders, or DSM-5, which uses a more comprehensive set of questions.
The new test has been used for years in a variety of settings including health care settings.
In a study published in the journal Personality and Individual Differences, Luebs team looked at people in a study where they had been asked to rate how emotionally and physically distressed they were by a psychologist.
Those who were rated as suffering more severe emotional and/or behavioral distress were less likely to complete the personality assessment.
The same study looked to see if the personality scores of people who were also experiencing serious mental illness were different from those who had no symptoms.
The study found that the scores of the people who had experienced severe mental illness scored higher than those who were not.
But it was the scores that were the most consistent.
“If you had the most severe symptoms, the personality score was going to be worse than the other way around,” Luebenes said.
“The question is, is it worse than it is?
The question is not whether you have the most extreme symptoms, it’s whether you are experiencing them or not.”