Abstract

The purpose of this longitudinal study was to examine the psychometric properties of the Korean version of Dimensions of Traumatic Anger Reaction scale-5 (DAR-5-K) over two periods in Korea. For this purpose, an online survey was conducted with 563 Korean adults exposed to traumatic events at time1, and 383 Korean adults exposed to traumatic events at time2. The results were as follows. First, Exploratory Factor Analysis and Confirmatory Factor Analysis supported the one-factor structure, as defined in previous validation studies. Second, the scale showed robust internal consistency and test-retest reliability. Third, DAR-5-K displayed robust concurrent validity and discriminant validity with measures of depression, anxiety, and PTSD symptoms, and also predictive validity with measures of PTSD symptoms. These results suggest that DAR-5-K is an instrument having a brief and satisfactory psychometric properties to measure anger reaction to Korean adults exposed to traumatic events. Implications and recommendations for future research were discussed.