Fascinating article. One thought I had on reading it though was wondering to what degree all these high school students were truthful about their sexual exploits. To a first approximation (and I could be way off here) I would expect the boys to "pad" their resume and perhaps the girls to underreport same. But then again, who knows these days?
Yep. It's called the "rule of 3". For guys, divide their stated number of sex partners by 3 to get the truth. For women, multiply by the same.
To be even more quantitative, I would multiply any boy's answer by 0.3, and any girl's by 2.5, to come up with a reasonable estimate of the number of sex partners.
-ccm