Personality Disorders as Collections of Traits

This chapter argues that personality disorders can and should be understood as collections of basic personality traits from a general model of personality, namely the five-factor model (FFM). It reviews evidence for the convergence of FFM personality disorder profiles across multiple approaches—expert ratings (i.e., researchers and clinicians) and empirical relations. It discusses how to score the personality disorders from the FFM and provides evidence for the convergent, discriminant, and construct validity of this approach. The chapter also demonstrates how the new alternative model for personality disorders can be embedded within the more established and robust FFM literature.