In a study where individuals posing as strangers offered compliments and proposed casual sex to students, the responses differed significantly based on gender. Not a single woman accepted the proposal, while 70% of the men agreed. This outcome provides a useful scenario to explore through the lens of evolutionary psychology and social learning theory, highlighting the diverse perspectives on human sexual behaviors.

Evolutionary psychology provides one explanation for these findings, suggesting that natural selection has shaped women to be selective about their sexual partners. This selectivity aims to optimize survival and reproductive outcomes, promoting the preservation and propagation of their genes. However, this field of psychology has its critics. Many argue that evolutionary psychology often retrofits causes to effects, molding explanations to fit pre-existing views on human behaviors rather than emerging from unbiased observations.

On the other hand, social learning theory provides a more relevant explanation. According to this theory, people learn how to behave in specific situations by observing and imitating others in their culture. For instance, women might learn that encounters with unfamiliar men can be risky, that casual sex may not be particularly fulfilling, and that engaging in casual sex can damage their reputation more than it would for men. This viewpoint implies that both women and men respond to sexual encounters according to culturally learned behaviors, with men possibly being influenced by the idea that "real men" should seize every sexual opportunity.

Furthermore, the application of evolutionary psychology in explaining modern behaviors raises ethical and practical concerns. For instance, explaining men's misconduct in relationships as a product of evolutionary pressures can be problematic. It risks excusing inappropriate behaviors by attributing them to innate tendencies supposedly selected through evolution, potentially hindering efforts to address and reform such behaviors. As well as this, not all traits and behaviors can be advantageous or directly explainable by natural selection, as evidenced by non-reproductive behaviors such as suicide.

This dichotomy between evolutionary psychology and social learning theory in interpreting human sexual behavior underscores the complexity of human actions and motivations. The debate between innate predispositions versus learned behaviors continues to stimulate discussions in both academic circles and practical applications, reflecting broader societal implications concerning gender norms, sexual conduct, and personal accountability.