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Young Adults Make Rational Sexual Decisions.
Laura E Hatz1, Sanghyuk Park1, Kayleigh N McCarty1
1Department of Psychological Sciences, University of Missouri.
Psychological Science
|August 14, 2020
Summary
People make rational decisions about sexual partners, balancing attractiveness against the risk of sexually transmitted infections (STIs). This study links choices in a hypothetical task to real-world sexual risk-taking behaviors.
Area of Science:
- Behavioral Economics
- Psychology
- Public Health
Background:
- Risky sexual behavior is a significant public health concern.
- Understanding the decision-making processes behind sexual choices is crucial for effective prevention strategies.
Purpose of the Study:
- To investigate risky sexual choice through the framework of rational decision-making.
- To determine if individuals prioritize attractiveness or sexually transmitted infection (STI) risk when evaluating sexual partners.
- To explore the relationship between hypothetical sexual choices and real-world sexual risk-taking.
Main Methods:
- A novel sexual-choice task was administered to 257 participants.
- Participants evaluated hypothetical sexual partners based on physical attractiveness and probability of STI transmission.
- Participants' choices were analyzed for consistency with rational choice theories.
Main Results:
- Nearly all participants demonstrated coherent decision-making, aligning with utility-based rational choice theories.
- Participants' preferences were categorized based on whether they maximized attractiveness or minimized STI risk.
- A significant association was found between choices made in the task and reported real-world sexual risk-taking.
Conclusions:
- Rational decision-making principles appear applicable to understanding risky sexual choices.
- Individual sexual preferences can be characterized by a trade-off between attractiveness and STI risk.
- The study provides a behavioral economic framework for analyzing sexual risk-taking and informs public health interventions.
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