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July 15, 2026Journal of Traumatic StressOpen Access

Are DSM‐5 and ICD‐11 posttraumatic stress disorder measures assessing the same construct? Evidence from a Rasch‐based analysis

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Authors

EAEmre Han AlpayMersin Üniversitesi

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Overview

Randomized trial compares PTSD measures in refugees, highlighting differences in assessment tools' effectiveness.

Key Points

  • The aim is to determine if the DSM-5 and ICD-11 measures for PTSD function similarly in a specific population.
  • Compared PTSD Checklist for DSM-5 (PCL-5) and the International Trauma Questionnaire (ITQ) using Rasch modeling
  • Sample included 483 Syrian refugees in Türkiye with defined demographics
  • Analyzed correlations with depression and anxiety between both instruments.
  • PCL-5 had a stronger correlation with depression (r = .792) compared to ITQ (r = .691), p < .001.
  • Probable PTSD prevalence was higher with DSM-5 criteria (26.9%) than ICD-11 (21.9%).
  • PCL-5 items mapped onto ICD-11 clusters correlated more strongly with depression (r = .790) than ITQ (r = .701).

Cite This Study

Emre Han Alpay (2026) studied this question.

synapsesocial.com/papers/6a57234488b21df87548003bhttps://doi.org/10.1002/jts.70105
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