This is a mind-opening book. If you teach young children, you must
read this. It should dramatically change your ideas about reading assessment.
From the section "Guidelines for Test Makers":
"As children respond to small bits of decontextualized material followed by multiple-choice tasks, they respond to test in such a limited way that they run the risk of internalizing an impoverished model of reading."
Maybe you already felt what this book proves. Reading it will give you the specific language you need to begin to make the argument that we must change the way we assess young people's reading.