Hi again ... You'll get lots of responses about this . I posted about my third neuropsych test here:
Clinical neuropsychology
I'm a great believer and "truster" in such tests and have a lot of positive things to say but you can read them all on the other posting.
And here's a site that has some things to say that might help a bit....
http://www.brainsource.com/npassmnt.htm
One more thing ..... If 'my' hospital/surgeon/epileptologist told me they need more information available only that way (as dreadful and difficult as I find it) I'd be there in a heartbeat.