Psychometric Properties of the Spanish Adaptation of the Anger Rumination Scale: Evidence of Reliability and Validity in the General Population.

The key role of rumination and perseveration processes in anger experience has been empirically supported. The tendency to ruminate has been demonstrated to be crucial in understanding pathological and adaptive behaviours. The Anger Rumination Scale (ARS) was developed to assess anger rumination frequency when people are angry, showing adequate levels of reliability and validity. However, although it has been adapted to several languages, the development of the Spanish version was still pending. The aim of this study, therefore, was to develop the Spanish adaptation of the ARS and to validate it in a general population sample (N = 388). Participants were asked to complete the ARS as well as other measures of anger (STAXI-2), anxiety (STAI-T), depression (BDI-II short form), rumination (PSWQ), and thought self-regulation (TCQ). A confirmatory factor analysis replicated the four-factor structure obtained with the original version (S-B χ2(145) = 323.26, p < .00005; CFI = .92; TLI = .90; RMSEA = .06; SRMR = .05). The resulting subscales (i.e., Angry Afterthoughts, Angry Memories, Thoughts of Revenge, and Understanding of Causes) met psychometric criteria of reliability (α = .89) and validity. In conclusion, a psychometrically sound Spanish adaptation of the ARS is now available.