well, if i'm wrong, i'm wrong. but i don't see this working. people intrinsically want to believe that they've made smart choices. you best their instructor, and belief preservation suggests that they'll come up with reasons why that doesn't mean anything.
educate them and they'll make their own minds up. they'll reevaluate their teachers on their own recognizance. that seems like a better way to go, to me.
stuart b.