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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, a = .87; Study 2 α = 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 and their distributions more closely approximated normality. These findings suggest that the Colombian version of the AMMSA scale is a useful instrument to study the social perception of sexual aggression. [ABSTRACT FROM AUTHOR]