This study examined the reliability, factorial validity, and measurement equivalence of the Noctcaelador Inventory (NI) among three ethnic groups of college students. Participants included 200 Whites, 200 African Americans, and 200 Latino/Hispanics. The results indicated that although the African American sample scored slightly lower than the White and Hispanic samples, the internal consistencies were identical for all three samples. Factor structures were consistently unidimensional and accounted for a similar percentage of variance for all groups as well. It was concluded that the NI is suitably valid, reliable, and equivalent for White, African American, and Latino/Hispanic college students.