What leads to romantic attraction: similarity, reciprocity, security, or beauty? Evidence from a speed-dating study.
Level 4 - case-series / case-control
Observational cross-sectional dyadic study (speed-dating)
PubMed 19558447 · doi:10.1111/j.1467-6494.2009.00570.x
What was done
Researchers evaluated initial romantic attraction in a live speed-dating setting to test classical attraction principles (similarity, reciprocity, security, and physical beauty). Data were evaluated using the Social Relations Model to separate actor, partner, and relationship-level variance, combined with meta-analytic techniques across speed-dating interactions.
What was found
The abstract reports no numerical values, effect sizes, or test statistics. Directionally, initial attraction depended on actor effects, partner effects, and unique dyadic relationship variance. Self-characteristics better predicted attraction in women than in men, whereas partner characteristics were stronger predictors of attraction in men than in women. Across both sexes, partner physical attractiveness emerged as the strongest predictor of initial attraction. The analysis found some support for reciprocity of attraction, but no evidence supporting the similarity principle.
Why it matters
This study tests laboratory-derived attraction paradigms within an ecologically valid, face-to-face dating context, indicating that physical attractiveness predominates initial romantic interest while partner similarity plays a negligible role at the initial encounter stage.
Limits
The abstract does not state the sample size, participant demographics, specific operational definitions for security or reciprocity, or numerical effect sizes and confidence intervals. As an observational speed-dating paradigm, findings reflect immediate initial attraction rather than long-term relationship formation or stability.