If it helps any, my GRE scores were average and I have a 3.6 GPA. However, I had original qualitative and quantitative research experience. Also, the person who called me with an acceptance let me know that the department was trying to move in the general direction of my research. I think that my writing sample, my research experience, and my research interest were more so the greatest factors than my GRE and GPA. But that was what I gathered from that one particular program.