LAUSR

Emotion regulation difficulties are associated with a range of psychological disorders. A widely used measure of emotion regulation is the Difficulties in Emotion Regulation Scale (DERS-36). There are also three shortened DERS versions. Consistent with current efforts to build very brief versions of measures, the aim of this research is to develop a briefer DERS and evaluate its construct validity. Study 1 uses IRT methods coupled with content considerations to develop a briefer unidimensional DERS. Previous attempts to shorten the DERS have not considered how frame of reference may influence responses to items. The new DERS-8 includes only items prefaced with the phrase "When I'm upset," to provide respondents with a uniform context that elicits thinking about situations requiring regulation of negative emotion; answers to items are more likely to represent affect, thought, and actions in response to such situations. Study 2 showed that the DERS-8 performed well in an IRT analysis among adolescents with psychiatric disorders and showed similar group differences, sensitivity to change, and correlations with other variables compared to existing DERS versions, in both healthy adult and clinical adolescent samples. The DERS-8 offers a very brief unidimensional measure of difficulties in emotion regulation for adolescents and adults.