[saraid216]

> How do you measure educational value? If someone finishes 90% of the class but never takes the final exam, have they learned nothing?

Here's the thing: you can't tell.

Why is there a final exam? Because otherwise, you can't tell. It's an exit survey.

This is one of the clearest indicators that Udacity and other MOOCs aren't actually "revolutionizing" anything in education; they're just making an economic gamble on an iteration.