Lots to address here!
So the study itself, the sample size is going to be 50 with the $3300 goal. If we can break that we really want the sample size to be more like 100 or even 200.
I agree that we need to play multiple game systems to really judge the effectiveness of RPGs as a whole, but the problem is we have to start somewhere and unless we can get massive funding, we have to start small. The idea is to do a smaller, less-inclusive study to get SOME results on the table and from there we can expand to much larger studies that do incorporate multiple game systems, more in-depth testing procedures for determine change in ethical sensitivity, and that sort.
In short, the problem is a catch-22 of nobody wanting to support a big study of RPGs without some numbers to back up that there's a reason to, and we can't get those numbers unless we do a study. The compromise is this smaller, less fully-formed study that focuses on just Pathfinder.
I do agree with most criticisms here. Don't get me wrong, most of what y'all say is technically accurate. The problem is working with what we have and with what my advisor believes is most feasible. What they think is most feasible is recruiting undergraduate students of all sorts of educations background with little concern whether they have played RPGs before and to what extent (other than to have it be marked on the results as to which subjects had experience and which didn't).
Hopefully we can get a huge surge in funding and make it to where this can be 200 people sample size, which is consider large enough that it should still give us some good data. At the very least it would give us good enough data that we can start getting more traditional funding from places that want us to replicate the results or refine them. From there we can have a lot more control over the finer details!