Hi, this may be cliche but the gpa/pcat/gre scores really don't mean everything. As long as you are above the required scores you are totally fine. The reason I say that is because my scores weren't at all impressive. I did do well on my GRE (83 percentile) but gpa and pcat were very pedestrian.
As for the interview, there were 4 staff members holding separate individual interviews with each candidate. The questions that were asked seemed to test your ability to think on the spot as oppose to questions that you had pre existing knowledge of. For example, one question I was asked was "give an example of a time where you received new information that changed your opinion on something"
Prepare for something along those lines.
I believe if you get interviewed at FDU they want you just as much as you want them. So go in and be yourself, I don't think they want a robot who is so shy and can't speak. They probably get hundreds of those and would like a breath of fresh air. I hope you get your interview and good luck.