Yep, this is the horrible one. The one everyone seems to dread, and unfortunately, there might be two of them in the exam! Thankfully, I don't think they've ever set two alternative evidence questions [fairly sure we had two evaluate the methodology ones], so you'll hopefully just have to do two methodology questions. With these, again, it's fairly easy to structure.
- Pick out about five studies for each piece of research and learn them. Learn learn learn. Don't worry about names or what year, you don't really need them. If you can remember the name, great, but don't sacrifice actually learning the content of the evidence!
- Condense them down if it'll help with revision.
- Pick ones that are relatively easy to remember, but also ones that do have a strong supporting/contradicting relationship to the study.
- Make sure you don't have all supporting or all contradicting - they want to see that you know about both sides.
- Write out about the study - a brief bit about what they did and what they found, and then link it to the study, say if it supports and if so, what bit does it support and why, and if it contradicts, say what bit it contradicts and why.
- It seems like a hell of a lot to learn, and when you open that exam paper, you'll see the question and think "I can't remember any about this one!", but I found that as I wrote it, bits and pieces started coming back and I was able to write a full answer