am currently doing eating disorders as our critical study on abnormalities. I must say, I can't find much on studies - but the main one seems to be Holland et al. Have a look in the large text book (AS PSY. or A PSY.).
If I'd seen your note earlier, I'd have been able to write you something from my notes - I'm doing AS level too - you've probably seen all my wittering in earlier posts!
Good luck with your test. Let me know how you go on , and if you can remember any of the questions- let me know as it'll help me revise too. ta.