Comment by __mharrison__

After hundreds of hours of teaching coding, I started thinking, "I know I'm here to teach them, but I can also rank and order the class attendees after the first day."

You know who will struggle, who will take up all of your time, who will ask questions that show they weren't paying attention, and who will be done and offering to help others rather than wasting time. I've never been approached to do it, but it seems like having a 3rd party do the (at least the technical) assessment might be less biased.