Well, I can understand the pro of being done in three years
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However, I've heard certain rumblings about a program whose AuD students aren't trained enough by the time their externships roll around and externship supervisors are taking issue with this. I've heard this from a faculty member and a friend who was considering the school... because it is just talk, I'm not going to mention the school on here. I was really interested in a program that was three years but I was a bit wary of the accelerated part and my wariness was confirmed with this.
I didn't realize this until recently but the amount of clinical hours you have in your AuD program matter ALOT when you start to pursue externships because these places want you to be well trained and knowledgeable once you start working with them. They don't want to have to teach you the basics, that's what your program is and should be for.