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August 2, 2026Journal of Psychopathology and Behavioral AssessmentOpen Access

Associations Between Reward Probability and PTSD Symptom Clusters after Controlling for Depression: A Structural Equation Model

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Authors

MGMichael J. GawrysiakSESebastian EhmannSKS.A. Kline

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Overview

Cross-sectional study investigates reward probability's link to PTSD symptoms, highlighting depression's impact.

Key Points

  • This research aims to explore the relationship between reward probability and specific PTSD symptom clusters, accounting for depression's influence.
  • Cross-sectional design with 428 university students
  • Participants completed the DSM-5 PTSD Checklist, Depression, Anxiety, and Stress Scale, and Reward Probability Inventory (RPI)
  • Structural equation modeling tested RPI associations with four PTSD symptom clusters and included depression as a covariate.
  • RPI-ES showed negative associations with all PTSD symptom clusters across both models
  • RPI-RP exhibited unexpected positive associations with Intrusion and Avoidance, indicating a suppressor effect
  • Depression explained additional variance in PTSD symptom severity beyond the RPI subscales.

Cite This Study

Gawrysiak et al. (2026) studied this question.

synapsesocial.com/papers/6a6eea5d1b0468a7eeab2a73https://doi.org/10.1007/s10862-026-10308-1
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Cumulative social adversity as a correlate of self harm: Validity of the Reward Probability Index2026
  2. 2Psychological inflexibility and resilience in anxiety: insights from machine-learning and robust mediation-based models2026
  3. 3MMPI-2, BDI-II, and Rorschach in the Assessment of PTSD2025
  4. 4Unraveling reward processing in schizophrenia and bipolar disorder: a multilevel examination of the positive valence system2026
  5. 5Clinical Utility of Impact of Event Scale–Revised for Diagnostic and Statistical Manual of Mental Disorders-Fifth Edition Posttraumatic Stress Disorder2024 · 2 citations