Related Experiment Video
Updated: Jun 15, 2025

Use of a Psychophysiological Script-driven Imagery Experiment to Study Trauma-related Dissociation in Borderline Personality Disorder
Published on: March 8, 2018
Lay-Led Intervention for War and Refugee Trauma: A Randomized Clinical Trial
Lori A Zoellner1, Jacob A Bentley2, Kawther Musa3
1Department of Psychology, University of Washington, Seattle.
Importance:
The global refugee crisis disproportionately affects the Muslim world. Forced displacement often results in trauma-related mental health issues. Effective psychotherapy exists, but there are barriers to uptake by refugee groups as well as a lack of culturally appropriate interventions.
Objective:
To examine the efficacy of a brief, lay-led, mosque-based intervention, Islamic Trauma Healing (ITH), adapting empirically supported cognitive behavioral principles to improve mental health and well-being.
Design, Setting, And Participants:
In a randomized clinical trial, 101 participants received ITH or active assessment but delayed intervention (waiting list [WL]) in mosques and virtually in Seattle, Washington, and Columbus, Ohio, and were assessed through 12-week follow-up. Data were collected from July 14, 2018, through July 14, 2022, and data analysis was conducted from March 13 to July 31, 2023. United States-based refugees from Somalia who experienced a Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) Criterion A trauma exposure and posttraumatic stress disorder (PTSD) reexperiencing or avoidance. Analyses were intention-to-treat, using full information likelihood for missing data.
Intervention:
Islamic Trauma Healing included psychoeducation, discussion of the lives of prophets who had undergone trauma, and informal prayer turning to Allah about the trauma, incorporating cognitive restructuring and imaginal exposure. Lay-leader training is purposely brief: two 4-hour sessions with weekly supervision.
Main Outcomes And Measures:
The primary outcome was PTSD severity (measured with the Posttraumatic Diagnostic Scale for DSM-5 [PDS-5]). Secondary outcomes included depression (Patient Health Questionnaire-9), somatic symptoms (Somatic Symptoms Severity-8), and quality of well-being (World Health Organization Five Well-Being Index). Analyses were intention-to-treat.
Results:
Analyses were based on all 101 randomized participants (92 [91.1%] women; 9 [8.9%] men; mean [SD] age, 46.5 [12.02] years) with baseline mean (SD) PDS-5 score of 31.62 (16.55) points. There were significant differences in PTSD severity (d = -0.67), depression (d = -0.66), and well-being (d = 0.71), comparing ITH vs WL after the intervention. Gains were maintained through 12-week follow-up. Islamic Trauma Healing was consistent with religious and cultural practices (mean [SD], 3.8 [0.43]) and promoted community reconciliation (mean [SD], 3.8 [0.42]).
Conclusions And Relevance:
In this randomized clinical trial of a brief, lay-led mental health intervention, ITH proved superior to WL. The findings suggest that ITH has the potential to provide an easily trainable and scalable intervention, incorporating Islam and empirically supported principles, that addresses the psychological wounds of war and refugee trauma.
Trial Registration:
ClinicalTrials.gov Identifier: NCT03502278.
More Related Videos
Related Concept Videos
Blinding
Post-traumatic Stress Disorder
Symptoms and Behavioral Manifestations
A spectrum of distressing symptoms characterizes PTSD. Recurrent flashbacks, where individuals involuntarily relive traumatic events,...

