The DRA has a time component to it that sometimes trips up readers who are capable of reading at higher levels at a relatively slower pace. Teachers generally test at grade level and one level above. It takes time and testing all children in the class takes more time- so they won't have time to test beyond that- generally. They are looking for the kids that need extra help to access the grade level curriculum. The DRA level is usually the level of mastery- children frequently read above that level when they are reading for pleasure- that is one way to increase reading ability- to read slightly above one level (sort of like playing a better tennis player helps one become a better tennis player). Many kids carry around the HP books (or other popular books) but aren't really reading them- so it is hard to figure out what everyone else is actually reading.
