Evidence-Based Assessment of Personality Disorder.

The purpose of this article is to provide a description and discussion of the evidence-based assessment of personality disorder. Considered herein is the assessment of the Section II personality disorders included within the fifth edition of the American Psychiatric Association's (APA) (5th ed., text rev.

Core traits of psychopathy.

There remains considerable debate as to what are the core traits of psychopathy. One approach to addressing this question is to identify the traits that are present in persons said to be actual or even prototypic examples of psychopathy. Ted Bundy, Clyde Barrow, Bernie Madoff, James Bond, Chuck Yeager, and Sherlock Holmes have all been described as being a psychopath.

Obtaining and losing the bipolarity of the five-factor model through factor analysis.

The predominant model of general personality structure is arguably the 5-factor model (FFM), consisting of the 5 broad domains of neuroticism, extraversion, openness, agreeableness, and conscientiousness. A FFM of personality disorder (FFMPD) has proposed maladaptive variants at both poles of the FFM. The purpose of the current study was to identify a subset of FFMPD scales, using factor analysis, that illustrate the bipolarity present in the FFMPD, but equally important, to demonstrate that the presence of bipolarity is impaired by a number of concerns, including the impact of nondiametric scales and the occupation of interstitial space.

The convergent, discriminant, and structural relationship of the DAPP-BQ and SNAP with the ICD-11, DSM-5, and FFM trait models.

The predominant maladaptive trait models are now provided by Diagnostic and Statistical Manual of Mental Disorders-Fifth Edition (DSM-5) Section III, assessed by the Personality Inventory for DSM-5 (PID-5; Krueger, Derringer, Markon, Watson, & Skodol, 2012), and the International Classification of Diseases-11th Revision (ICD-11; assessed by the Personality Inventory for ICD-11 (PiCD; Oltmanns & Widiger, 2018). However, 2 historical precedents are the Dimensional Assessment of Personality Pathology-Basic Questionnaire (DAPP-BQ; Livesley & Jackson, 2009) and the Schedule for Nonadaptive and Adaptive Personality (SNAP; Clark, 1993). The current study administered the DAPP-BQ, SNAP, PiCD, and PID-5 to a sample of 323 persons with a history of mental health treatment.