Patient's self-evaluation of personality disorders not as far off as previously perceived
Purdue University researchers think the gap between a psychologists' diagnosis and a patient's self-evaluation might not be as extreme as previously perceived when both are using the same evaluation tools.
The research findings are published in the Journal of Consulting and Clinical Psychology. They lessen concerns that people lack awareness of their own personality pathology.
The solution might be as simple as ensuring clients and their clinicians are provided similar tools to report psychological functioning.
Previous research suggested that clients lack awareness of their own personality pathology due to a perceived gap in agreement of the evaluation of a clinician and the patient's own self-diagnosis. But when using the same evaluation tool set, that gap of agreement significantly decreased, and previous concerns might have been overstated.
"Research settings typically utilize diagnostic procedures that differ considerably from methods used in clinical practice," said Douglas Samuel, associate professor of psychological sciences and lead author on the paper. "As a result, little is known about the reliability and validity of the diagnoses assigned in routine clinical practice."
The group collected dimensional trait ratings from 54 therapist-client dyads within outpatient clinics. Patients provided ratings of dimensional personality disorder traits via the Personality Inventory for DSM-5, an assessment scale created by the American Psychiatric Association. The assessment is designed to provide a broad indication of problematic personality traits, focusing on five personality trait domains, including negative affect, detachment, antagonism, disinhibition and psychoticism. Therapists completed the informant version of the same assessment.
"In contrast with concerns about underreporting of personality disorder pathology, clients reported a greater pathology than their therapists on almost all traits," Samuel said. "These findings alleviate concerns about the validity of self-reports, but also raise questions about how and why clients (and clinicians) provide ratings. Ultimately, more work is necessary to understand how source and methods can be best integrated to arrive at the most effective personality disorders diagnoses."
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