Wow, that's an absurdly misleading headline.

Here's the editor's analysis: http://en.wikipedia.org/wiki/User:Colin/Introduction_to_Psyc...

I see 16 cited cases of supposed plagiarism. How did we go from 16 cases to claiming 85% of people in a 1700 student class are plagiarizing? No offense to the submitter, but I feel these kinds of things are best submitted after someone reasonably objective distills and summarizes the issue. Devoted wikipedia editors can be somewhat dramatic about things, so in cases like this I prefer to see other points of view.