Compulsive sexual behavior (CSB) is a putative clinical syndrome characterized by the experience of sexual urges, sexually arousing fantasies, and sexual behaviors that are recurrent, intense, and a distressful interference in one's daily life. Although the putative phenomenology of CSB has been described in the literature, the lack of a reliable, valid assessment tool has made investigation of prevalence, co-factors, and etiologic factors difficult. This study examined the further development of the Compulsive Sexual Behavior Inventory (CSBI) using a sample of 1,026 Latino men who have sex with men recruited and assessed using web-based technology. The scale showed a two factor structure (control and violence). Further, the CSBI and its subscales showed indications of validity in that those engaging in CSB-type sexual behavior (being drunk or high, feeling lonely or depressed, and feeling driven) had scores indicative of greater CSB. Those with scores above the median had more sexual partners and engaged in more unprotected anal intercourse than those with CSBI scores below the median. Additionally, the instrument showed equivalence when administered in English and Spanish.