Customized computer-based administration of the PCL-5 for the efficient assessment of PTSD: A proof-of-principle study

Matthew D. Finkelman, Sarah R. Lowe, Wonsuk Kim, Oliver Gruebner, Niels Smits, Sandro Galea

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

Objective: To investigate the potential of customized computer-based testing procedures to reduce the mean test length of the Posttraumatic Stress Checklist for DSM-5 (PCL-5). Method: A retrospective analysis was conducted using responses from 942 adults who had completed the full-length (20-item) PCL-5 in the aftermath of Hurricane Sandy. The abilities of 2 testing procedures, curtailment and stochastic curtailment, to lessen the instrument's mean test length while maintaining the same result as the full-length PCL-5 ("positive" or "negative") were evaluated in a post hoc simulation. Curtailment and stochastic curtailment track a respondent's answers as she takes the instrument and stop the test if future items are unable or unlikely to change the result. The performance of each procedure was recorded under 2 scoring methods: a total-score-based method and a cluster-based method. Each procedure's sensitivity, specificity, and overall agreement with the full-length PCL-5 were computed. Results: Curtailment reduced the mean test length by 40% under the total-score-based method, and by more than 70% under the cluster-based method, while exhibiting 100% sensitivity, specificity, and overall agreement with the full-length PCL-5. Stochastic curtailment reduced the mean test length by up to 88% under the total-score-based method, and up to 84% under the cluster-based method, while always exhibiting at least 92% sensitivity and 99.8% overall agreement, as well as 100% specificity, for the full-length PCL-5. Conclusions: Curtailment and stochastic curtailment have potential to enhance the efficiency of the PCL-5 when this assessment is administered by computer. The 2 procedures should be evaluated in future prospective studies.

Original languageEnglish
Pages (from-to)379-389
Number of pages11
JournalPsychological Trauma: Theory, Research, Practice, and Policy
Volume9
Issue number3
DOIs
Publication statusPublished - May 2017

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Keywords

  • PCL-5
  • PTSD
  • curtailment
  • respondent burden
  • stochastic curtailment

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