Swiping for Sex: The Use of Dating Apps and Their Effect on the Evolutionary Costs and Benefits of Human Mating Strategies

Presenter(s): Mariah Bloom – Biological Anthropology

Faculty Mentor(s): Lawrence Sugiyama, Frances White

Poster 127

Research Area: Social Science

Human reproduction is costly, involving both mating (e.g., finding, acquiring, and guarding a mate) and parental effort. The minimal parental investment necessary for women includes egg production, gestation and lactation. Even after weaning, human children require support over an an extended period of juvenile dependence. In ancestral contexts this could not be provided by the mother (or any individual) alone. Women are thus expected to have adaptations motivating them to seek mates who are likely willing and able to invest in her offspring, as well as to seek high genetic quality mates. Women thus deploy complex mating strategies to optimize these qualities, including a strategic mix of both long and short-term mating. The emergence of dating apps may affect the costs of women’s mating effort by allowing them to pre-screen potential mates, with cheaper and easier access to, communication with, and selection among potential long and short-term mates. Sex bias in the number of men and women users may also affect women’s mating strategies. Interestingly, there is limited evolutionarily informed research on how these dating apps have affected women’s mating behavior. This research reviews the literature on women’s use of dating apps & websites through an evolutionary lens: who uses them and why, changing views toward their use, the main mating costs and benefits of their use, and how their use might change women’s sexual behavior over time. Review of this literature will form the basis for generating hypotheses to be tested in the authors senior honors thesis next year.

Dating App Use Is Associated with Less Sexual Restrictedness in Both Men and Women

Presenter(s): Mariah Bloom

Faculty Mentor(s): Lawrence Sugiyama & Colin Brand

Poster 107

Session: Social Sciences & Humanities

30 million Americans use dating technologies. Location-based real time dating (LBRTD) apps (e.g., Tinder) allow users to access photos and short profiles of potential mates in real time, indicate interest, and communicate and arrange meetings if desired. Sexual strategies theory posits humans evolved multiple mating strategies, contextually deployed based on relevant costs and benefits. We hypothesized LBRTDs alter perceived costs and benefits of different mating strategies, leading to different patterns of sexual behavior. We administered a Qualtrics survey to UO undergraduates about dating app usage, and measures including sex, STMs, LTMs, perceptions and their Socio-sexual Orientation (SOI, indicative of STM (high SOI) vs LTM (low SOI) attitudes, preferences, and behaviors). Responses of self-identified heterosexual respondents (N=126) were analyzed. General linear models show app use associated with higher SOI (β = 0.09, p < 0.001), but not sex or self-perceived attractiveness. Number of STMs was higher for males than females (β = 4.82 p < 0.05), and positively related to SOI (β = 0.09, p < 0.01). Conversely, SOI was a negative predictor of LTMs (β = -0.04, p < 0.05). App-using men had more STMs and LTMs than non-app users. Women app users and non-users did not differ in STMs or LTMs. Thus we find mixed support for our predictions. Because sample women are near peak fertility, with high mate value, they likely can act on short-term mating desires regardless of dating app usage.