There is also the William Davidson Graduate School of Jewish Education. I will be finishing my MA in Jewish Education there in August. They are a pluralistic school, but affiliated with JTS. While the majority of the students seem to be Conservative, I know that among the current students studying in the online program there is at least one other Orthodox rabbi in addition to myself. I have found the program to be demanding and rigorous, and would definitely recommend. it. I chose it specifically because it seemed to me, at the time, to be the most rigorous option available.
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www.jtsa.edu]