Anytime you have a multiple choice test with no penalty for guessing, there is the potential to boost the scores a little. There is a standard error of 6 to 8 points around a score, but in general, the MAP score should not be that far off. Therefore, even if your DD is not really at 98 percentile, she is clearly well above average.
The MAP tests more than just simple reading comprehension so obviously high areas can mask lower areas.
As the MAP is multiple choice, it does not require the ability to formulate a coherent written and/or oral response, which the school curriculum most likely requires. If your DD has weaknesses in written expression and/or is not particularly articulate speechwise, that may impact her teacher's perception of her comprehension ability.
You need to find out the particulars about the remediation from the school as well as question your DD about her DRA testing experience.
