Mizzy,
I'm also a psychology student but I am a sufferer of PTSD too.
As a fellow student you should know the ethical guidelines of the APA and BPS inside out and back to front before you start a research study. I don't know what your assignment/hypothesis was, but if you were just doing a survey, the chances are you wouldn't have gotten a very high grade, in any case. You want to be producing quantitative data, not qualitative data. Ratio data is preferable as it provides a stronger correlation between your variables.
The very fact that this thread exists shows that you have done little to no reading on the disorder to which you were assigned.
I suggest that you do some more reading on the people you would like to research and then go and redesign your study/survey, before approaching anthony in the proper manner.
Good luck with your work,
Aine