Strategic pluralism (also known as the dual-mating strategy) is a theory in evolutionary psychology regarding human mating strategies that suggests women have evolved to evaluate men in two categories: whether they are reliable long term providers, and whether they contain high quality genes.
One experiment concluded that between short term and long-term relationships, males and females prioritized different things.
[4][5] The females also prefer males who can offer them more financial security as this would help them raise their offspring.
[8] Bellis and Baker calculated that if double-mating strategy does occur, the rate of paternal discrepancy would be between 6.9 and 13.8%.
David Buss, prominent evolutionary psychologist, cited this evidence as a reason to be sceptical of dual-mating strategy hypothesis.