In this study the first psychometric analyses of the Colombian version of the Acceptance of Modern Myths about Sexual Aggression scale (AMMSA) (Gerger, Kley, Bohner y Siebler, 2007) are presented. This scale assesses modern myths about sexual aggression in a subtle way. Two studies were conducted with college students. In Study 1, 312 students completed the Colombian AMMSA and other scales with related content (Sexism Ambivalent Inventory, ASI, and Rape Myth Acceptance Scale, RMAS). In Study 2, 196 participants completed the Colombian AMMSA and answered questions about a hypothetical sexual assault. The Colombian AMMSA showed high internal consistency (Study 1, α = .87; Study 2 α = .86). Correlations between AMMSA scores and variables selected in order to obtain external evidences of validity supported the initial hypotheses. Compared to traditional rape myth acceptance scales, mean scores on the AMMSA were higher consistencia interna (Estudio 1, α = .87; Estudio 2, α = and their distributions more closely approximated normality. .86). Los valores de las correlaciones observadas entre las Tese findings suggest that the Colombian version of the puntuaciones en el AMMSA y las variables seleccionadas AMMSA scale is a useful instrument to study the social para obtener las evidencias externas de validez se ajustaron perception of sexual aggression.