Those results seemed definitive - until a few years ago, when Terri D. In , Robert L. But when participants believed that lies about their sexual history would be revealed by the fake lie detector, gender differences in reported sexual partners vanished. To back up the assumption that an enormous gap exists between men's and women's attitudes toward casual sex, evolutionary psychologists typically cite a classic study published in Then they gather evidence - from studies, statistics and surveys - to support that assumption 2. Conley found the methodology of the paper to be less than ideal.
Recently, another pillar appeared to fall. They were the way things had always been. But women were much less likely to agree to go to the confederate's apartment. Nothing new here, it's all evolution. Over the past decade, sociocultural explanations have gained steam. The evolutionary psychologists of the s and '90s built on Trivers' theory to explain a wide array 14 of stereotypical gender differences in mating. Fisher, published the results of a study that used a fake lie detector In fact, women reported slightly more sexual partners a mean of 4. Men reported having had more sexual partners than women. Given the relative paucity of ova and plenitude of sperm, as well as the unequal feeding duties that fall to women, men invest less in children. In , Robert L. My space is limited. They think these features are getting shaped and honed 22 by natural selection all the time. Conley found the methodology of the paper to be less than ideal. Those results seemed definitive - until a few years ago, when Terri D. In light of this new research, will Darwinians consider revising their theories to reflect the possibility that our mating behavior is less innate than they had believed? The confederate would say: Alexander and Terri D. That, for instance, society tends to view promiscuous men as normal and promiscuous women as troubled outsiders, or that our "social script" requires men to approach women while the pickier 18 women do the selecting. As for going to bed with the confederate, zero women said yes, while about 70 percent of males agreed. But when participants believed that lies about their sexual history would be revealed by the fake lie detector, gender differences in reported sexual partners vanished. If a man mated with a promiscuous woman, he would never be able to ensure his paternity. If you ask people what they would do in a specific situation, that's a far more accurate way of getting responses. Men and women on a college campus were approached in public and propositioned with offers of casual sex by "confederates" who worked for the study. He wrote in that parental investment theory "will not explain the full panoply of supposed sexual differences so dear to pop psychology. Schmitt used parental investment theory to explain why men should be expected to "devote a larger proportion of their total mating effort to short-term mating. But many evolutionary psychologists don't think this way.
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