Development of a Short Form of the Elemental Psychopathy Assessment

Donald R. Lynam, Emily D. Sherman, Douglas Samuel, Joshua D. Miller, Lauren R. Few, Thomas A. Widiger

Research output: Contribution to journalArticlepeer-review

64 Scopus citations

Abstract

The Elemental Psychopathy Assessment (EPA) is a 178-item self-report measure designed to assess the basic elements of psychopathy from a Five-Factor Model perspective: Anger, Arrogance, Callousness, Coldness, Disobliged, Distrust, Dominance, Impersistence, Invulnerable, Manipulation, Opposition, Rashness, Self-Assurance, Self-Centered, Self-Contentment, Thrill-Seeking, Unconcern, and Urgency. The present article reports on the development of a short-form version of the EPA in two large undergraduate samples using item response theory. The validity of the resultant, 72-item, item response theory-derived short form is compared against the validity for the full scale in the undergraduate samples and smaller forensic sample. Results indicate that the 18 subscales of the EPA short form remain relatively reliable, possess an internal structure virtually identical to the full version, and manifest highly similar correlational profiles to a variety of criterion measures. The EPA short form is offered as a viable assessment of psychopathy when assessment time is limited. Implications of these findings are discussed.

Original languageEnglish
Pages (from-to)659-669
Number of pages11
JournalAssessment
Volume20
Issue number6
DOIs
StatePublished - Dec 2013

Keywords

  • Elemental Psychopathy Assessment
  • five-factor model
  • personality
  • psychopathy

ASJC Scopus subject areas

  • Clinical Psychology
  • Applied Psychology

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