The Effects of Rational Emotive Behavior Therapy, Progressive Muscle Relaxation, Distraction, and Rumination on State Anger Using the Autobiographical Essay Memory Task

Given the many negative outcomes of anger, including physical aggression and violence, there is a need to improve treatment outcomes. As such, several treatment approaches were evaluated in this study. The autobiographical essay memory task (AEMT) was given to 157 participants on Amazon's Mturk. Using a four (intervention) by three (state anger) mixed design, participants were randomly assigned to one of four conditions: control group (a distraction task), rumination, self-help Rational Emotive Behavior Therapy (REBT), or progressive muscle relaxation (PMR). All participants were instructed to write an anger-evoking memory for ten minutes. Following this, participants were then asked to partake in their respective intervention. Using the State Anger Scale from the State-Trait Anger Expression-2, state anger was measured at baseline, after writing about the anger-evoking memory, and post-intervention. As expected, there was a significant difference across the three time points, p < .001, η2 = .30. Once the AEMT was completed, participants received an intervention. Participants indicated lower levels of state anger post-intervention compared to post-AEMT, p < .001; however, participants post-intervention still reported higher levels of state anger compared to baseline, p < .001. Using the LSD post-hoc test, participants in the rumination condition reported higher levels of state anger post-intervention compared to participants who engaged in PMR (p < .001), self-help REBT (p = .04), and the control condition (p < .001). There were no significant differences noted between PMR, self-help REBT, and the control conditions post-intervention. The AEMT was an effective tool to evoke state anger in a lab setting. Additionally, self-help REBT, PMR, and distraction are effective tools to decrease state anger.