Sexual compulsivity describes poorly controlled sexual thoughts, fantasies, urges, and behavior. The purpose of the current study was to examine and compare, utilizing a non-clinical sample, the relative psychometric properties of two existing scales used to assess sexual compulsivity, the Sexual Compulsivity Scale and the Compulsive Sexual Behavior Inventory. Participants were 334 male undergraduate students ranging in age from 18 to 42 years (M =19.54, SD = 2.16) enrolled in Introductory Psychology courses at a mid-sized Midwestern university. Zero-order correlation analyses were conducted to identify which sexual behaviors and constructs associated with sexuality were significantly related to scores on the CSBI and the SCS. Examination of the differential patterns of sexuality relations suggests the CSBI and the SCS may measure different aspects of compulsivity. Step-wise regression analyses indicated that the use of drugs and alcohol to gain compliance from a sexual partner, fantasies of impersonal sex, and sexual anxiety were significant predictors for both the CSBI and the SCS. On the CSBI, the final predictor that accounted for a significant increase in variance accounted for was expressing anger, while on the SCS additional variance was accounted for by sexual preoccupation. Implications, limitations, and future directions are discussed. / Department of Psychological Science