Related Experiment Video
Updated: Jun 20, 2026

Combining Behavioral Endocrinology and Experimental Economics: Testosterone and Social Decision Making
Published on: March 2, 2011
Arbitrary social norms influence sex differences in romantic selectivity
Eli J Finkel1, Paul W Eastwick
1Northwestern University, Evanston, IL 60208, USA. finkel@northwestern.edu
Men become less selective in dating when they initiate contact, a finding that challenges traditional views on partner selection. This study reveals that taking the initiative boosts attraction and confidence, impacting dating behavior.
Area of Science:
- Social Psychology
- Evolutionary Psychology
- Human Mating Behavior
Background:
- Men are generally less selective than women in choosing romantic partners.
- Traditional explanations for this difference are insufficient.
- A novel hypothesis suggests approach behavior influences selectivity.
Purpose of the Study:
- To test the hypothesis that initiating romantic pursuit increases attraction.
- To investigate the role of approach behavior in sex differences in selectivity.
- To explore the mediating effect of self-confidence.
Main Methods:
- Speed-dating events with 350 heterosexual participants.
- Experimental manipulation: men or women rotated between partners.
- Comparison of selectivity between 'rotators' (initiators) and 'sitters' (non-initiators).
Main Results:
- Participants who rotated (approached partners) were less selective than those who remained seated.
- The typical sex difference in selectivity vanished when women rotated.
- Increased self-confidence mediated the effect of rotation on selectivity.
Conclusions:
- The act of approaching a potential partner enhances attraction and reduces selectivity.
- This finding offers a new perspective on sex differences in romantic pursuit.
- Self-confidence plays a key role in mediating the impact of approach behavior on dating selectivity.
Related Concept Videos
Criticisms of the Evolutionary Perspective
Evolutionary psychology provides one explanation for these findings, suggesting...
Close Relationships and Culture
Natural Selection and Mating Preferences
Females, due to their biological roles in conception, pregnancy, and nursing, inherently...
Desirable Characteristics in Others
Factors Influencing Attraction IV: Reciprocity
Mate Choice

