fathomlessspite | Psychology Students?

Are there any current or ex Psych students on my flist? I am absolutely lost here. I'm trying to figure out what statistical test to use for my dissertation (proposal in for next week) and I haven't done stats for 2 years. It's probably something simple, but my brain just wont engage. Help?

Basically its and eyewitness testimony study with three conditions. Participants will each be given an account of a case that will vary from condition to condition. All they have to do is say gulity/not guilty. So those are the only results I'll have to test.

So...... anyone??