Philosophy is probably a discipline for which multiple choice tests are not the best method to evaluate student performance or knowledge. Since I assume most of us recognize that multiple choice has some fairly obvious limitations, I'd be interested to hear about how people use multiple choice effectively so that it evaluates something meaningful about student knowledge.
Obviously the great virtue of multiple choice from the instructor's point of view is that it speeds up the process of grading tests dramatically — not something to be shrugged off if you're teaching students in large numbers. But it can be difficult to fashion multiple choice exams that test higher level skills or knowledge that we typically care about a lot in philosophy: the ability to craft or appraise arguments, the understanding of logical relations, etc. So I'd be interested to hear if you use multiple choice tests and how you do it. What makes for a good multiple choice question (in the context of teaching philosophy at least)? Are there things that these tests can accurately measure in your experience, or conversely, things they definitely can't measure? Do you see other advantages or disadvantages of multiple choice?