Former NATS President Roy Delp (1943-2014) believed that “the idea of constructive criticism along with encouragement” is at the heart of our student adjudications. "Perhaps one of the greatest ties that binds us together as NATS members is the care we have for the students of our colleagues, as demonstrated at our student auditions.” 

Journal of Singing, 2000, Vol.57, No.1 p.2

The NATS NSA resource page offers tutorials for video preparation, rubrics for adjudication and much more.  Check it out!