[Rathji]

Originally Posted by evman150

I assumed you were being obtuse. Here's a decent overview:

http://www.boxturtlebulletin.com/Articles/000,024.htm

That article doesn't really touch on the point I was making, which is that many people are somewhere in the middle of that scale (from 0 to 6) and not at either extreme.

Unless you want to argue that because the sampling was opportunistic, the entire study is invalid.