Full-Time at Vanderbilt (Au.D)

So, I've been looking pretty hard among the Vanderbilt website, through google and also through the SDN search bar, but have not found the answer I am looking for. Does anyone know how many credits a student takes for full time in the Vanderbilt Au.D program? I can only guess 12 credits per semester, however, some graduate programs consider different amounts of credits as full-time, for example, I've seen some that have 6 credits per semester which satisfy full-time requirements. Any help on this would be appreciated. I am trying to estimate the cost of attendance for the program to see how feasible it is for my future. Thank you!