Hi Christina. I advocate in Missouri, specializing in specific learning disabilities (particularly, dyslexia), but also am familiar with ADHD and other disabilities, which often go hand in hand with specific learning disabilities.
In Missouri, the discrepancy model is only used for determining eligibility under the category of specific learning disability. This lack of discrepancy between IQ and academic scores does NOT affect her eligibility under other disabilities, such as Intellectual Disorder (low IQ), Other Health Impairment (ADHD), or Young Child with a Developmental Delay. It appears that your daughter might very well qualify under any of these categories.
My recommendations are as follows:
1) Don't give up on the public school just yet. In my opinion, they haven't done the proper evaluations yet and could be "forced" to do more.
2) So my second recommendation is what Sharon suggested - ask for an IEE (Individual Educational Evaluation). Make sure it is done in all areas of suspected disabilities, which it appears (but I don't have all the facts) the school district's evaluation did not do.
3) As far as dyslexia, I wouldn't rule that out as a possibility just yet. The definition and diagnosis of dyslexia is very complicated. Although rare, it is possible to have both a low IQ and dyslexia. Plus, what kind of IQ test was administered? If she does have dyslexia, a non-verbal IQ test should be done, and most school districts don't do that.
4) Ask for a 504 evaluation. At a minimum, she needs accommodations. And getting her back on an IEP (I assume you're beyond the 10 days of the school district's notification that they were exiting her from services?) will take time. A 504 Plan can be implemented much quicker.
5) Depending on what the IEE shows in terms of dyslexia, reading struggles, etc., if you decide to go the home-school route, I would suggest reaching out to a tutor certified in Orton-Gillingham or another recognized multi-sensory, structured literacy program.
I am happy to expand/explain if you would like to contact me offline.
Carolyn Rowlett (crowlett@dyslexiaadvocates.net or 816-547-5476)