Reliability of DSM and empirically derived prototype diagnosis for mood,anxiety and personality disorders |
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Affiliation: | 1. Baruch Ivcher School of Psychology, Interdisciplinary Center (IDC), Herzliya, P.O. Box 167, Herzliya 46150, Israel;2. Department of Psychology and Psychiatry, Emory University, 201 Dowman Drive, Atlanta, GA 30322, USA |
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Abstract: | BackgroundProminent psychiatric diagnostic systems such as the DSM-IV and ICD-10 have shown low reliability in clinical practice. An alternative approach to classification of psychiatric disorders is prototype matching. In the current study, we examined reliability of assessing mood, anxiety and personality disorders using a multi-method multi informant approach. More specifically, we examined diagnosis made by treating clinician and independent expert clinical interviewer, using three different diagnostic systems (DSM symptom count, DSM-IV prototype diagnosis and empirically derived prototype diagnosis).MethodsA convenience sample of clinicians (N = 80) and patients (N = 170) from eight community mental health clinics in Israel participated in the study.ResultsOur findings show fair to excellent interrater reliability for prototype dimensional diagnostic systems (ranged from 0.40 to 0.79) for most mood and anxiety disorders examined. Overall, dimensional diagnostic systems, yielded better interrater reliability for mood, anxiety and personality disorders, as compared with categorical diagnosis. There were no significant differences between dimensional systems.ConclusionsOur findings provide further support to the advantages of dimensional over categorical models in increasing reliability. |
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