The Structure of Avoidance Following Trauma: Development and Validation of the Posttraumatic Avoidance Scale (PAS)

Leanne Andrews, Stephen Joseph, Tim Dalgleish, Nicholas Troop

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)
165 Downloads (Pure)

Abstract

Avoidance is a key maintenance factor in traumatic reactions but currently no satisfactory measures of it exist. Here we develop and validate a multi-dimensional measure of trauma-related avoidance across two samples. In sample 1 485 emergency service personnel completed a 44-item self-report measure of avoidance in relation to an identified occupational trauma. Principal components analysis provided evidence for a distinction between controlled and automatic avoidance. On the basis of these results a 20-item measure, the Posttraumatic Avoidance Scale (PAS), was constructed. The predictive validity of the PAS was established in a longitudinal study. Sample 2 illustrated the transdiagnostic potential of the PAS in an eating disordered population. This measure of trauma-related avoidance is the first to intentionally assess PTSD avoidance symptoms in this bi-dimensional manner.
Original languageEnglish
Pages (from-to)126-135
JournalTraumatology
Volume19
Issue number2
Early online date15 Oct 2012
DOIs
Publication statusPublished - Jun 2013

Keywords

  • PTSD, avoidance, inhibition, assessment

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