Examining triarchic psychopathy constructs in a Dutch forensic treatment sample using a forensic version of the Schedule for Nonadaptive and Adaptive Personality

Jacomina Gerbrandij*, David P. Bernstein, Laura E. Drislane, Vivienne de Vogel, Marike Lancel, Christopher J. Patrick

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

3 Citations (Web of Science)

Abstract

Psychopathy, as described by the triarchic model, encompasses three distinct phenotypes: boldness, meanness, and disinhibition. The current study sought to operationalize these in a sample of 100 Dutch male forensic-psychiatric patients with differing forms of personality pathology who participated in a multi-site randomized clinical trial. Using an established construct-rating approach, triarchic scales were created using items from clinician-rated and self-report versions of the Schedule for Nonadaptive and Adaptive Personality (SNAP) adapted for forensic populations, the SNAP-F. Internal psychometric properties and criterion-related validity were evaluated. SNAP-F-Triarchic Meanness and Disinhibition scales showed acceptable internal consistencies, whereas the Boldness scales (which comprised fewer items) showed lower numbers. The scales showed associations with self-report and interview-based criterion measures largely in line with predictions, with higher validity for criteria assessed in the same measurement domain. Implications of findings for prediction of key outcomes in clinical settings are discussed, along with promising directions for future research.

Original languageEnglish
Pages (from-to)384-399
Number of pages16
JournalJournal of Psychopathology and Behavioral Assessment
Volume41
Issue number3
DOIs
Publication statusPublished - Sep 2019

Keywords

  • Psychopathy
  • Boldness
  • Meanness
  • Disinhibition
  • Forensic treatment
  • VALIDATION
  • SCALES
  • CONCEPTUALIZATION
  • DISORDERS
  • TRAITS
  • MODEL
  • RISK

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