Wow, aeh! Thank you for the more detailed explanation. It makes much more sense now why the fluency score could have such a strange effect on the broad reading score. I do wonder, though, how the scoring system can decide that his fluency score was 99.8th percentile--that seems to be a fairly precise measure. I know accuracy and precision aren't the same thing, but it does seem misleading to offer a precise result without also clarifying the potential lack of accuracy.
In any case, I think these results make more sense now. Thanks for your help!
