The perceived clarity and understandability of the DSM-IV personality disorder criteria sets

Abstract 

One of the expressed aims of the DSM-IV revision process was to “increase the clarity” and the understandability of the personality disorder (PD) criteria. This was an important goal as previous research had showed the DSM-III-R PD criteria to have problems with clarity. To assess the degree to which this goal was achieved, we had two groups (psychiatrists and lay persons) rate the clarity of the DSM-IV PD criteria and the criteria for major depressive disorder (MDD) and post-traumatic stress disorder (PTSD). The lay group rated five of the 10 PDs criteria sets and the criteria for PTSD as being significantly more clear than did the mental health professionals. No difference was seen between the two groups on their ratings of the MDD criteria. In addition, the professional group rated two of the PD criteria sets (borderline and schizotypal) as being less clear than the MDD criteria, while the lay group rated eight of the PD criteria sets as being more clear than the MDD criteria.

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