Abstract
This article describes the Shedler-Westen Assessment Procedure (SWAP), a personality assessment instrument intended for use by clinically experienced interviewers, designed to maximize both psychometric precision and clinical relevance. The article focuses on the latest edition of the instrument, the SWAP-II; its use in 2 recently completed large-sample projects; and the ways in which data from these projects are being used to revise and refine concepts of personality pathology and taxonomy. The article first details the development of the SWAP and its psychometric rationale. It then examines the use of SWAP data for purposes of (a) improving diagnostic criteria within the framework of the existing Diagnostic and Statistical Manual of Mental Disorders taxonomy, (b) developing a new classification of personality pathology based on empirically identified diagnostic groupings, and (c) identifying trait dimensions relevant to understanding personality syndromes and disorders. Finally, the article discusses future research directions and challenges.
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