A Single-Arm Meta-Analysis of Cognitive Processing Therapy in Addressing Trauma-Related Negative Cognitions

Ryan Holliday, Nicholas Holder, Alina Surís

Research output: Contribution to journalArticle

5 Scopus citations


Cognitive Processing Therapy (CPT) is a first-line treatment for posttraumatic stress disorder designed to address cognitive “stuck points” connected to a patient’s trauma-related negative cognitions (NCs). Although CPT has well-established efficacy, the ability of CPT to address NCs remains understudied. The purpose of this study was to conduct a single-arm meta-analysis to determine the overall effect of CPT in attenuating NCs pre- to posttreatment across multiple clinical trials. A review of the existing literature was performed with only peer-reviewed clinical trials included in the meta-analysis. Nine studies with data from 583 participants were entered into the meta-analysis. CPT was found to have a large effect size in reducing NCs from pre- to posttreatment. Findings are limited by the single-arm nature of analyses and heterogeneity in included trial methodology (e.g., gender, trauma type, civilian versus veteran).

Original languageEnglish (US)
Pages (from-to)1-9
Number of pages9
JournalJournal of Aggression, Maltreatment and Trauma
Publication statusAccepted/In press - Mar 26 2018



  • Cognitive processing therapy
  • posttraumatic stress disorder
  • single-arm meta-analysis
  • trauma-related negative cognitions

ASJC Scopus subject areas

  • Health Professions (miscellaneous)
  • Clinical Psychology
  • Psychiatry and Mental health

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