|
Now, to add on to my last post so as not to sound completely snarky: when it comes to sex, the discussion of nature versus nurture is ancient and hard to resolve. Twin studies are popular precisely because of that, as identical twins have the same genetic make up. Other studies have used twin studies to show that genetics explain a good deal of premature ejaculation and clitoral orgasm, for example, as twins would have significantly correlated responses to questions regarding those issues.
Regarding it being a "large" study, interviewing 1800 people regarding this issue is not a trivial matter. And how representative a sample is is not about share of the population interviewed, but sampling procedure. You can have a representative sample of any population you want with as little as 300 people, if the sampling is done correctly.
|