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Echidne says

Not a single popularization I saw suggested this:  Women!  Do more traditional female chores and you get more sex!  But that's also the implied conclusion of the study.

Source: Echidne of the Snakes

That's because we all know why no woman would ever do anything to get more sex!

The very idea is inconceivable!

Echidne also notes the consistency with which men doing any kind of chores is referred to as "helping around the house." Because, you know, that's the only reason women ever "give" sex -- as payment for help with their job around the house: housekeeping.

In my necessarily anecdotal experience, doing all the chores, half the chores, the "manly" half of the chores, doing the "womanly" ones, or or doing no chores around the house whatsoever has never had any effect on the frequency of sexual activity with any of my domestic partners. Nor the enthusiasm level. Nor, when there was a lack of it, the lack of enthusiasm.

And while my experience might be anecdotal it's also noteworthy: if I recall correctly from a radio interview with one of the authors the other day, the difference in frequency is only about two percent. Various decidedly non-sex-related studies including time motion, industrial, and marketing research suggests the average person has difficulty noticing anything less than a 5% change in the frequency of pretty much everything.

Probably not worth the additional aggravation of letting a coffee cup sit next to a sink or leaving a lightbulb un-screwed just because a) it's not your gender's job and b) doing the "wrong" chore might reduce your frequency of having sex, on average, by once every 10-25 weeks.