“…In this sense, certain studies show differences according to gender, such as that males engage in sexual behavior at an earlier age ( Ramiro-Sánchez et al, 2018 , Teva et al, 2013 ) and have a greater number of sex partners ( Teva, Bermúdez, & Buela-Casal, 2009 ). Furtermore, females have less negotiation power in the case of condom use, less self-efficacy to decline safe sex and less power when making decisions of a sexual nature ( Bermúdez et al, 2010 , Bermúdez et al, 2013 , Crosby et al, 2013 , Ramiro et al, 2013 ). A possible explanation for the differences that exist between males and females in terms of sexual behavior is the existence of traditional gender roles.…”