Two things.
#1. Get her an appointment with a Psychiatrist and a Neuropsychologist. Take the evaluation data that you got from the school with you. If you do not have a full copy, complete with the subtest scores, write, do not call, but write to your school district and request a copy. A Neuropsychologist can do the evaluation that needs to be done, but take that evaluation to a Board Certified Child Psychiatrist to see if you there are any medical diagnostics to go with your educational evaluation.
Additionally, get her an appointment with both a speech therapist (for a langague evaluation, as dyslexia is a langague based issue) and an Occupational therapist (visual motor and sensory processing issues can impede writing and they are frequently comorbid with dyslexia and ADHD-ADD is really a form of ADHD, inattentive type) also get an evaluation with a developmental optomitrist, Catherine West in Spring is good, if she is still there.
The reasoning behind #1 is simple. You should never know less about your child than the school.
#2. Learn about school advocacy. www.wrightslaw.com is the best source for learing the dos and don't on how to proceed. You can read about dyslexia, ADHD, evaluation, qualifying for services, how to deal with the school effectively. Log on today, and scroll down the left side of the page. Click on "Retention." Read about why this is a very bad educational strategy. If your daughter has a high IQ then there is no reason that she should not be ahead of the curve, unless she needs to be instructed in a different way. That way needs to be identified, and her instruction needs to change; doing the same thing again is not going to help her.
Write to your school. Tell them that your have not seen satisfactory resluts from either the in class interventions or the RTI (response to intervention) program that they have been providing her. This is basicly what they have been doing, and you wish to schedule a meeting to discuss a new evaluation that will identify why your child has not made adequate yearly progress. Do not request dyslexia testing, request an evaluation of any/all contributing factors of her suspected disablity that are unknown to you, and say that you hold them responsible for evaluating all areas that they know of, or should know of. They are the experts. You do not have to share your private evalaution with them, but you will probably wish to, but you certainly do not have to tell them about your private evalatuions, nor do you, or should you, agree to postpone school evaluations. Use the evaluations to your advatage to keep the school honest.
You will not likely get all that your child needs from the school, though you can try. Find out exactly what she needs from the private evaluation, then negotiate for as much of that as you can get from the school, and provide the rest. Reading has a shelf life. You will understand this concept after you have read about retention, but she needs to get into the right kind of intervention and learn to read and write well before the focus of learning changes to reading and writing to learn, in 4th grade or so. Read about retention, especially for children with learning differences, it can very well not just be a bad choice, it could mean full scale academic and reading failure, I have seen it many times as an educational advocate, and many more kids with mild issues that, once they are held back, are always just not quite bad enough to need help at school, though you as her parent will find yourself buying it privately.
If your daughter has dyslexia, and frankly, no mater what the diagnosis is for her inablity to learn reading, all children can learn to read with an alphebet phonics, orton gillingham based reading program. You should make it your mission to get her this as soon as you can. You should also find out what else she may need to be successful, and all your answers will be in the evaluation data.
Good luck to you,
M.