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Updated: Feb 12, 2026

Research and Development of High-performance Explosives
Published on: February 20, 2016
Cognitive-behavioral group therapy for intermittent explosive disorder: description and preliminary analysis
Ana M Costa1, Gustavo C Medeiros2, Sarah Redden3
1Departamento de Psiquiatria, Instituto de Psiquiatria, Universidade de São Paulo (USP), São Paulo, SP, Brazil.
Objectives:
To evaluate the efficacy of a group therapy based on cognitive-behavioral techniques customized for intermittent explosive disorder (IED). The current report presents the preliminary results of a clinical trial comparing pre- and post-intervention scores in different anger dimensions.
Methods:
The studied sample consisted of 84 treatment-seeking subjects. The mean (standard deviation) age was 43.0 (11.9) years, and 78% were male. The therapeutic group program consisted of 15 weekly sessions plus three maintenance sessions. The sessions lasted approximately 90 minutes each.
Results:
No differences were found in demographic profile and pre-treatment status between subjects who completed treatment (n=59) and dropouts (n=25). Comparison of State-Trait Anger Expression Scale (STAXI) scores pre- and post-treatment showed statistically significant changes in all anger scales and subscales of the questionnaire.
Conclusion:
This preliminary report is a significant addition to currently scarce clinical data. Our findings provide further evidence that structured cognitive-behavioral group therapy, with a focus on anger management and cognitive coping, may be a promising approach to the treatment of IED.
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