How do you stop online students cheating?

caught-cheating-tests-01-af5Here is an article (and a video that doesn’t seem to be working) on cheating and online courses from the BBC.

Imagine taking a university exam in your own home, under the watchful eye of a webcam or with software profiling your keystrokes or your syntax to see whether it really is you answering the questions.

Online university courses have become the Next Big Thing for higher education, particularly in the United States, where millions of students have signed up for courses from some of the most upmarket universities.