Can anyone tell me if the assessment will bear any results with a girl who stands on the corner in shutdown mode, arms crossed and staring at the wall throughout? My daughter had done this at pretty much any encounter with a new person she's not met before, and with how incredibly hard it is to get seen at all, I don't want this to be another appointment where they try to coax her into participating and we eventually leave because she won't do anything. Incidentally, they don't seem to think THIS behaviour is particularly relevant! 
Presumably they need her to do something to get a result?