Liu, MelissaWu, WeiZapolski, TamikaCyders, Melissa A.2024-01-242024-01-242023-10Liu, M., Wu, W., Zapolski, T., & Cyders, M. A. (2023). Measurement Invariance and Differential Relationship to Substance Use of the Short UPPS-P Impulsive Behavior Scale Across Racial Groups. Assessment, 30(7), 2212–2222. https://doi.org/10.1177/10731911221146339https://hdl.handle.net/1805/38176The Short UPPS-P Impulsive Behavior (SUPPS-P) scale assesses impulsive traits; however, its use among racial/ethnic minorities needs further testing. The aims of this study are to (a) test the measurement invariance of the SUPPS-P scale between White and racial/ethnic minority groups and (b) determine whether impulsive personality traits differentially relate to substance use outcomes across these groups. Participants were 1,301 young adults and recruited through a large public university or Amazon’s Mechanical Turk. Multigroup confirmatory factor analysis concluded strong measurement invariance for Black, Asian American, and Hispanic/Latino groups, each compared with a White group. Most relationships between SUPPS-P traits and substance use did not differ across the groups compared, although two differences emerged with alcohol use. The SUPPS-P can validly and reliably measure impulsive traits in Black, Hispanic/Latino, and Asian American young to middle adults. Previous findings on risk patterns with the SUPPS-P likely generalize to these groups.en-USPublisher Policymeasurement invarianceimpulsive traitsUPPS-Pconfirmatory factor analysissubstance useracial/ethnic groupsArticle