That also has "higher level" problems. So adjunct history prof A convinced his students to spend, on average, 6 hours watching videos per week and adjunct prof

That also has "higher level" problems. So adjunct history prof A convinced his students to spend, on average, 6 hours watching videos per week and adjunct prof B only motivated his kids to watch 2 hours, obviously the contract we'll renew is for A, heck we should put A on tenure track, what a motivational educator he is! If the reason were collected and analyzed, it might be the case the prof A doesn't actually speak English or is utterly incompetent about the topic, so the kids are self teaching (true story from my youth!) Now there may be anecdotal verbal end-of-semester survey results, but thats just meaningless prose from kids, but the number of hours of video watched is a number, therefore it is meaningful...