Hi
It sounds as if you are gearing yourself up for battle. I wish you all the strength and determination you are going to need to get through this.
The most important piece of advice I can give - having gone through this myself - is keep written records, they may be extremely useful 1,2,3,4 years down the line - it is highly likely that you are in for a very long haul to get the education your child needs.
LA's have now devolved funding to the schools, so in the wonderful world of fantasy land, according to LA's you child wont need a statement, your school knows your child and has all the expertise it needs to meet its needs. Well that's enough fairy stories for tonight. Now back to reality,
You NEED a copy of the Special Educational Needs Code of Practice, it is free, telephone 0845 60 222 60 to order it. -
Why not write to the school for photo copies of all the IEP's they have on your child, (you should have been given these already. You need as much information as you can get from your school, You can do a Freedom of Information request for all your childs school records, these should tell you when your child was assessed, by whom and the results.
For interesting reading have a look at Hoagies' Gifted Eduction Page. The "all things gifted" page on the internet. www.hoagiesgifted.org/tests. It will help to explain some of the tests.
Also have a look at Aprraxia-KIDS. www.apraxia-kids.org again this will help explain some of the tests. these are both American, but tests used by our UK educational psychologist seem also to be american.
I found the Psychosomatic Conversion charts extremely useful. Use google, to find them, so if your LA Ed Psyc says your child is below average with a centile 2 score, at least you will have the knowledge no its not simply below average as we were told it borderline.
A good independent EP report will give you true assessment of your childs needs. Again you can use google to find out further information about EPs, you have already been given the very good advice about finding one who is used to doing Tribunals.
As part of the statutory process the LA will write to your childs school, I would suggest as you will still have to deal with the school why not send them a copy of your letter to the LA for the Statutory Assessment, along with a letter stating your concerns.
You must get into recording everything either by email, or in writing to your school, I also found it useful to take a small tape recorder to meetings.
Please be aware the LA Ed Psyc is employed by the LA their first duty is to the LA not your child.
Parent Partnership can be useful for some information, but again dont be to trusting, they are funded by your LA.
I hope the above will be of some help, this comes with heart felt best wishes for you and your child, you are your childs advocate and you are now embarking on a very steep learning curve of fighting your LA.