Isn’t that a question of which is more effective? According to this review, boys score about 13 points higher than girls (18 points higher on math, 5 points lower on ERW) on the SAT:
That’s really not much, and of course higher test scores already correlate with college admissions. So what else could they do with the SAT to use this to get more boys to apply?
Investing in new male-dominated sports at least seems more concrete. Add a football team, recruit players, now you have 100 more men. Apparently adding a varsity e-sports team is nearly as predictably beneficial in recruiting men, as that is around 92 percent men. I’m not sure what the SAT equivalent of that would really be.
By the way, the other thing that is clear from that article is that if you were just indiscriminately trying to get more of the sorts of people who score higher on the SAT, far more than boys you would be de facto increasing your share of certain ethnicities, kids from very high income families, and kids from independent privates.
The difference by gender is tiny compared to the differences in those dimensions–for example, white kids scored an average of 172 points more than black kids, highest quintile kids scored 143 points more than lowest quintile kids, and independent private kids scored 192 points more than public kids. Boys scoring an average of 13 points more than girls is just a rounding error compared to all that.
Of course sports, including e-sports, may also skew your applicant pool in other ways besides gender. But I think it is quite likely that the “signal to noise” ratio would be much higher.