A draft of Chapter 8 on Assessment is now available. It makes what is perhaps an extremely conservative argument. Most assessment should be oral. Assessment should happen within the process of learning. Instructors should have conversations with students.
That's the punchline. Some readers might see the chapter as a shaggy dog story, because it takes a while to get to the punchline. I prefer to think that we learn the validity of a point by seeing the same point made in some other field. So I take some time drawing out parallels from elsewhere.