Thanks Sara. Yes, the exact question takes a lot of thinking about. Especially, since some research has been done in surrounding areas. Perhaps the question should be:
'How should memory services approach the topic of diagnosis disclosure?'
And Toks, yes the sample group is very large and it would be a highly costly exercise. So for practical reasons, you are right. To produce meaningful research, in a cost-effecive manner, the whole planning stage would need to be massive!