I know you've posted that best pedagogic practice (I've been longing to use that for weeks) says that learning spelling lists for tests isn't useful, and I well believe that. See Mumsnet threads passim and Colditz's current thread.
Do you know of any research/documents/studies that back this up? I want to raise it at our curriculum committee at school (am governor) and would like to have data. I've tried googling but without much success. Any ideas or references appreciated!