Sociosexuality in Men vs. Women: What the Cross-Cultural Data Shows

June 18, 2026 · 5 min read

The Short Answer—and Why It's Incomplete

Ask most people whether men or women tend toward more casual sexual attitudes, and they'll say men. The cross-cultural research broadly supports that intuition: on average, men score higher on measures of unrestricted sociosexuality than women do. That pattern has appeared across dozens of countries spanning wildly different cultures, religions, and economic conditions, making it one of the more replicable findings in the psychology of mating.

But stopping there would give you a deeply misleading picture. The average difference is real; it is also modest relative to the variation within each sex. Understanding both parts of that sentence is essential to understanding what sociosexuality research actually tells us about human beings.

What "More Unrestricted" Actually Means

Sociosexuality describes the degree to which a person is open to—or prefers—sexual relationships without deep emotional commitment. Someone with an unrestricted orientation is more comfortable with casual encounters, feels less need for closeness before sex, and tends to have more partners over time. Someone with a restricted orientation prefers emotional bonding first and typically pursues longer-term, committed relationships.

The SOI-R quiz measures this across three dimensions: behavior (actual past partners and encounters), attitude (how acceptable casual sex feels in principle), and desire (the frequency of thoughts about sex with people outside an established relationship). These dimensions do not always move together in the same person, which already hints at how complex the picture becomes once you look beyond group averages.

A Pattern That Spans Cultures

Large-scale cross-cultural research has examined sociosexuality across an impressive range of nations—from South America to sub-Saharan Africa to East Asia. The finding that men score higher on unrestricted sociosexuality than women is not confined to Western, industrialized societies. It emerges with notable consistency regardless of whether a society is relatively permissive or conservative in its sexual norms.

This cross-cultural robustness has led many researchers to conclude that the difference has at least a partial biological basis, possibly rooted in evolved differences in reproductive strategy. Men can theoretically reproduce more frequently with multiple partners; women face greater minimum costs from reproduction, which may have shaped psychological tendencies over evolutionary time.

That evolutionary framing is a hypothesis, not a proven mechanism, and it remains actively debated. What the data clearly show is the pattern's breadth—the difference does not simply evaporate when you cross a cultural or geographic boundary.

The Overlap Is the Story

Here is where the narrative needs to be complicated, not because the average difference is false, but because averages can obscure more than they reveal.

When you plot the sociosexuality scores of a large mixed-sex sample, the two distributions—men's and women's—overlap substantially. A great many women score higher than a great many men. A great many men score lower than a great many women. The difference in group averages does not tell you much at all about any individual person standing in front of you.

This overlap is not a statistical footnote. It reflects the genuine diversity of human mating psychology. Some of the most unrestricted individuals in any sample are women. Some of the most restricted are men. Sociosexuality is a continuous trait that varies enormously within each sex, and that within-sex variation dwarfs the between-sex difference in practical terms.

You can explore where your own scores fall on each dimension through the SOI-R quiz, and you can see how distributions look across different groups in our statistics section.

Why Within-Sex Variation Matters

Recognizing within-sex variation is not just a polite addendum to the main finding—it changes how we should think about relationships, compatibility, and social expectations.

A woman with a highly unrestricted orientation and a man with a highly restricted one are not anomalies to be explained away. They represent normal human variation. Research consistently shows that large mismatches in sociosexuality between partners—regardless of who is more restricted—predict lower relationship satisfaction and higher conflict. The relevant comparison is between two individuals, not between two statistical averages.

This also matters for how we interpret social behavior. When women report fewer casual partners than men on surveys, part of the explanation may be genuinely psychological, but part may also reflect social desirability pressures that discourage women from disclosing or even internally acknowledging their desires. Attitude and desire scores on well-validated instruments tend to narrow the gap compared to behavioral reports alone, suggesting that some of the observed difference reflects social reporting bias rather than underlying psychology.

What to Take Away

The cross-cultural evidence for a sex difference in average sociosexuality is robust enough that responsible science should acknowledge it rather than sidestep it. At the same time, that difference is modest in magnitude, it carries no implication about what any individual should want or do, and it coexists with enormous overlap between the sexes.

Human mating psychology is not neatly divided along gender lines. It is a broad spectrum on which men and women both appear throughout the full range—a reality the data have been showing us for decades.

References

Penke, L., & Asendorpf, J. B. (2008). Beyond global sociosexual orientations: A more differentiated look at sociosexuality and its effects on courtship and romantic relationships. Journal of Personality and Social Psychology, 95, 1113–1135.

Schmitt, D. P. (2005). Sociosexuality from Argentina to Zimbabwe: A 48-nation study of sex, culture, and strategies of human mating. Behavioral and Brain Sciences, 28, 247–311.