Volume 70, Issue 1 pp. 48-59
Research Article

The Organization of Irrational Beliefs in Posttraumatic Stress Symptomology: Testing the Predictions of REBT Theory Using Structural Equation Modelling

Philip Hyland

Corresponding Author

Philip Hyland

University of Ulster

Please address correspondence to: Philip Hyland, University of Ulster Magee, Northland Road Londonderry BT48 7JL, Northern Ireland. E-mail: [email protected]Search for more papers by this author
Mark Shevlin

Mark Shevlin

University of Ulster

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Gary Adamson

Gary Adamson

University of Ulster

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Daniel Boduszek

Daniel Boduszek

University of Huddersfield

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First published: 25 June 2013
Citations: 27

Abstract

Objective

This study directly tests a central prediction of rational emotive behaviour therapy (REBT) that has received little empirical attention regarding the core and intermediate beliefs in the development of posttraumatic stress symptoms.

Method

A theoretically consistent REBT model of posttraumatic stress disorder (PTSD) was examined using structural equation modelling techniques among a sample of 313 trauma-exposed military and law enforcement personnel.

Results

The REBT model of PTSD provided a good fit of the data, χ2 = 599.173, df = 356, p < .001; standardized root mean square residual = .05 (confidence interval = .04–.05); standardized root mean square residual = .04; comparative fit index = .95; Tucker Lewis index = .95. Results demonstrated that demandingness beliefs indirectly affected the various symptom groups of PTSD through a set of secondary irrational beliefs that include catastrophizing, low frustration tolerance, and depreciation beliefs.

Conclusions

Results were consistent with the predictions of REBT theory and provides strong empirical support that the cognitive variables described by REBT theory are critical cognitive constructs in the prediction of PTSD symptomology.

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