A Prototype Matching Approach to Diagnosing Personality Disorders: Toward DSM-V

A prototype matching approach to diagnosis is described that has the potential to be both psychometrically sound and faithful to the clinical data.

Abstract

The current diagnostic system for personality disorders (PD) has a number of problems that may require a thorough revision for DSM-V. This article (a) outlines problems with the current taxonomy that suggest the need for a different approach to PD diagnosis that preserves the strengths of the current system while addressing some inherent weaknesses; (b) discusses key issues that must be addressed in moving toward DSM-V, such as revising the distinction between Axis I and Axis II and combining categorical and dimensional diagnosis; and (c) describes a prototype matching approach to diagnosis, which we believe has the potential to be both psychometrically sound and faithful to the clinical data.