Why Men Would Have Same-sex Behavior

Introduction: Until December 2015, the highest proportion of HIV-AIDS cases in Bali was among men with heterosexual transmission and homosexual transmission in the second rank (Health Department Bali Province, 2015). The data was contradictive because Diamond (in Lehmiller, 2014) said that men sexually attracted by women. On the other hand, women are more flexible in sexual fluidity. The cumulative number of HIV-AIDS cases among men with homosexual transmission was around 200 fold cases among women and 40 fold cases among women by bisexual transmission. The significant difference appeared because same-sex behaviour in men is more risk than in women. Based on the situation of HIV-AIDS epidemiology in Bali, the aim of the research was to find the psychological factors that influence men engage same-sex behaviour. Methods: The research used quantitative approach. Data collection used five scales which are the perception of masculinity, the perception of femininity, the tolerance of personal space, sexual attraction, and the tendency on same sex behaviour. The subjects were 200 adult males in Bali. Data were analyzed by structural equation modelling. Results: The result showed that all of the exogenous variables gave significant impacts on same-sex behaviour as an endogenous variable. According to the analysis, perception of femininity, the tolerance of personal space, and sexual attraction gave positive impacts on same sex behaviour. On the other hand, the impact of perception of masculinity was negative. The strongest predictor was the perception of femininity. Conclusions: According to the result, exogenous variables in this research can predict the intention of same sex behaviour among men. The result was support the research hypothesis. However, the external validity of same sex behaviour scale, such as the frequency of intercourse and perceived sexual orientation among the participants need to be followed.