It appears to correspond with the utm_id query parameter.  It is mentioned in the following Google Analytics help documents:


Import Campaign Data - Analytics Help
How To Use Master Tracking Codes - Urchin Help
Campaign Tracking - Web Tracking (ga.js) - Google Analytics — Google Developers


I believe that it is a parameter that was included in Urchin (which Google bought and branded Google Analytics).   It appears that Google no longer recommends the use of this parameter.

Google Universal Analytics - Campaign ID
For my writing courses, about 5% of students will come to me prior to deadlines asking for help with their paper. I see no problem advising students, as I often similarly came for help when I was an undergraduate. Recently, though, I found an increase in students who apparently just want to abuse this:


Students will bring me some plagiarized work, showing it to me early, as a sort of test if I will notice. It seems difficult to punish plagiarism when the paper is not yet submitted.
Students will bring in papers again and again, with little changes put in at each stage, hoping their minimal effort each time will be sufficient to reach their goal of a "D".


I've tried stopping students, but then they are angry when they see the "F" that they hoped I would help them get away from. While most of these students are probably just incredibly lazy, there is a chance that some among them are genuinely trying to improve, but just struggling a great deal, and I can't see it.

How might I go about blocking such abuses?
