Homework Amusements

Question: "A study finds that students who listen to classical music tend to have higher grades than those who don't. Suggest two lurking/confounding variables researchers should look at before concluding that classical music causes higher grades."

One student's answer: "C.M. is so Boring it makes you want to study"

My, my, my. "Ride of the Valkyries"? Boring? The answer is a bit of a stretch, but at least he made an effort to tie the two together. So he got the full 2 points for that. :^D The biggest problem is that most students don't seem to understand that their answer has to connect to both music and grades.

*sighs* First homework set graded... 9 more to go, plus four tests and a final. Hmmm... It's probably a bad sign that I'm already trying to count down, isn't it... Interestingly, the grades on this first HW are clustered around 8.9 - 9.1 out of 10. With a strong left skew.