Wednesday, September 30, 2009

Extraversion and lifetime sex partners: Here are the median lifetime sexual partners for different demographic groups ages 30-59 by level of extraversion:

White men 8.0
Black men 10.0
White women 4.0
Black women 3.0

White men 5.0
Black men 10.0
White women 3.0
Black women 3.0

Extraversion is associated with more partners for both white men and women, but not for blacks. It seems odd that introverted black men have the same median partners as extraverted black men.

And you can see the typical gender disparity: men are probably exaggerating while women are under-reporting their sexual experience. (Prostitutes probably up the male numbers as well). The gender gap is larger for blacks.


  1. Anonymous8:59 AM

    Interesting that black women are reporting the same, or fewer sex partners than white women. I thought they were more promiscous?

  2. Anon, I think they're the same because the median was used instead of the mean. If you use the mean the number for black women, it is much larger than for white women. It is interesting, though, that the difference is more a matter of the outliers than those in the middle.

  3. I hope you follow up, as before, with a measure of the number of offspring.

  4. Introvert black men may be more likely to be intellectuals and achievers.

    There are far too few achievers in the black community to go around, for all the would-be upwardly mobile black women.

  5. "I hope you follow up, as before, with a measure of the number of offspring."

    Previous research has shown stabilizing selection for extraversion and neuroticism, with less reproductive success as you move away from average values.

    They also interact. Introverts with negative emotions have more children, while extraverts with negative emotions have less children.

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