Well, two comments.
First of all, we got here because of an off-topic discussion about "The Fall." The call for evidence was in reference to that.
As for why this topic was put in a science forum in the first place? I'm not sure, it was requested. But the implication is that we're asking questions that are data-driven.
there is no such evidence as to why Creationists reject evolution.
It's a question that's addressable through scientific means. Social science, cognitive anthropology, even neuroscience may play roles in getting answers. Like I said, the implication is that speculations are all nice and dandy, but let's try and make some testable hypotheses so that we can go beyond mere speculation.
Surely not, if we are talking aobut the psychological reasons that Creationists reject evolution. What are you going to do--take a survey?
Honestly, as someone who has been involved in psychology.... sounds like a great idea to me. It's definitely a great place to start. Why make up speculation based on nothing? At least start from some real data, and try and figure out what those answers "really mean."
To summarize, the implication is that the questions should ultimately be addressed in a testable way. Arguments that use actual data to support them are given precedence over "mere speculations." And if a claim is made (for example, about psychological trends in general populations or even specific populations), there should be evidence backing up such claims. That is the implication of having this topic here.