It is likely that certain wires are crossed here.
- What information do you think is missing? If a test was carried out then the score / result will be in the report you received. Nothing in the notes will change the score.
If you believe the diagnosis is wrong then simply giving the report to another qualified professional should be sufficient for a 2nd opinion.
- What precisely have you requested?
If you want the Psych's personal notes then that is likely a duster covered by certain privileges. Basically, they have to make personal notes to do their job properly, which may be impeded if these notes are subject to open requests which would force them to not take these notes at all and therefore risk doing their job badly.
If you want the actual test sheets used and scoring, they are correct to refuse you. I shall explain why below.
Let me start by saying that I assess for dyslexia, using psychometric testing alongside a few other standardised tests and some informal observations.
People assessed receive a written report, it includes ALL test scores for tests used. At the end I make my judgements based on these scores alongside other data collected.
All that the individual/parents receive is my written report. The test pages and scoring sheets are kept secure and any request for them to be released is refused.
Now, on the one hand many reasonable arguments are given above. However this refusal is standard among specialist teachers and educational psychologists. So to start with, let me be clear that this person is not doing any particular ass covering for a specific situation, this response is expected and standard.
Secondly, the response given to you is correct. The tests Ed Psychs use, and to an extent that I use, are restricted tests. They are not garden variety tests which anyone can find online to 'test your IQ' or 'find out what personality you are' etc. Our tests are restricted and there is a limited supply and they depend on that for their usability and validity.
If our tests were entered into the public domain because of all requests, they would instantly become invalid. We would not be able to use them again because it is possible that the person we have tested will have encountered them before or parts of it before etc.
Believe me, it is hard to even find scoring sheets online! I once lost my manual for a test and needed to find a percentile for the score achieved, I couldn't find it anywhere!
So if you are asking for the actual tests, you will not get them and no amount of asking or legal appeals is likely to change that. Short of a judge being willing to make a ruling he knows will be appealed by every psychological body in the country, it just won't happen.
If you wish for a 2nd opinion you can find another professional and request that the documents be sent to them for that opinion. However, he/she will also not give them to you I am afraid, for all the reasons above.
Believe me, I get the frustration. When I was training I had this exact same argument until I came to understand the significance of these tests and why the rules exist to protect them. By protecting the test, the people we assess are also protected.
Now it may be that I have completely misunderstood your request, in which case all of this wall of text was pointless! However, I hope it does help a little.