lydia lu is a distinguished researcher there working in -- with assessment in higher education. dan mccaffery who used to be a colleague of mine and steve kline's when we were at rand in the late '90s, now has a chair -- he is one of the most thoughtful people, a statistician who really knows a great deal about the issues that fredrik was talking about. i want to say a little bit -- the bottom line is fredrik's paper is a serious critique and he poses problems that are important. and what i want to do is just make a couple of comments that are stimulated by his argument and then i want to just tell you a little bit about a new way we might think about framing research on higher education, leading perhaps with educational assessment but going beyond that a little bit. i think that accountability did have a lot to do with the ramp-up of assessment in higher education. i'm talking about the spellings commission and so on. but i want to note that in the case of our group, reform and not accountability was the principle motivator. steve and i, some other colleagues at rand in the lat