Validation of the difficulties in emotion regulation scale (ders-28) in spanish young adult substance users.

The 28-item Difficulties in Emotion Regulation Scale (DERS) is widely used to measure Emotional Dysregulation (ED). However, its psychometric performance has not been examined in Spanish-speaking substance users. This study aimed to validate the DERS-28 in 1,676 [M = 19.56 (SD = 1.70), % women = 64.6] young adults with past-month substance use. Exploratory and confirmatory factor analyses, as well as reliability assessments using Classical Test and Item Response Theories, were conducted. The analyses supported a bifactor solution (invariant to sex) comprising five specific dimensions and a general factor (ED), each demonstrating adequate score reliability. Bifactor indices indicated an essentially unidimensional latent structure (ω_HG =.808; ECV_G =.554; H =.951; FD =.966). Convergent validity (values of |r| ranged between.036-.645) was supported by associations with clinical variables, including measures of substance use related problems, anxiety, stress, and depression. Among the DERS-28 dimensions, lack of control exhibited the largest effects. Despite its reliability and validity, limitations such as self-reported substance use and recruitment in college settings should be considered. In conclusion, the DERS-28 proves to be a reliable and valid tool, demonstrating utility for prevention purposes among young adults. [ABSTRACT FROM AUTHOR]