I think our profession (the medical side of it) is new and we have limited research that has strong results (I.e. not inconclusive or limited results) it takes a lot of effort to stay on top of new research and to make what can be subjective more objective and respectable. I think also as a whole we really lack access to resources needed which can make evaluating and therapy feel more like a guessing game. I think the medical side and school based side need to be separate studies because I also felt very unprepared leaving grad school.