Diagnostic checklists for the assessment of DSM-III-R Axis I diagnoses have proven to be a reliable and feasible instrument in research and routine clinical care. Therefore, a checklist for the assessment of the DSM-III-R Personality Disorders (MDCL-P) has been developed. An English version of the MDCL-P is available. The MDCL-P has been tested for reliability in a test-retest design. The average duration of the interview was 36 min. Of the patients, 48% received a diagnosis of at least one personality disorder. The Kappa value concerning the distinction personality disorder as opposed to no personality disorder was 0.62. The range of Kappa values of specific personality disorders, which were diagnosed at least five times, was from 0.35 to 0.79.
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