One way to get students involved is to have participation points. Once they involve themselves in the beginning "just for the points", they will soon realize how much they enjoy working with each other and how much they can learn from one another.

I think it is very important to understand what you are asking before you ask someone else. You must be ready for the answers thrown back at you therefore your answer is I don't know but I will find out. A question has several angles that could be taken and percieved in many ways can have several right answers it just on which one fits.

I have been in school working on my master for the last year. I can not remember learning or using this type of test. One thing we must do is create a course online for the undergraduates using what we have learned as our test.