Aside from the ad for the new 50 Shades movie at the top, I also have a criticism about:
“The researchers randomly assigned a person in each pair to the “top” role—the person who gives orders—or the “bottom” role, the one who follows them.”
This is a common error, as it conflates the role of top with Dominant and bottom with submissive. These often pair, but not always. Being a top does not inherently mean you are the Dominant (“person who gives orders”) and being the bottom does not always mean you are submissive (“the one who follows them”).
Bonus: a brief interview with Dr. Shirley Zussman, a 100-year-old sex therapist!