What do I do when there are errors in test reporting? IE: administer writes of student norms based on grade 7 when student is in grade 8. When student doesn't try, openly says they're going to rush through the test, and the administer still moves forward with the testing, writing, test results can't be standardized based on the student's performance. And the test results are lower in scores than than when administered three years ago. 

Second test administer does only one observation, and it looks like student was compared to another special education student as the control student. How do we move forward with triennial when we have no confidence in test results?

You ask for an Independent Educational Evaluation (IEE) for the reasons set forth in this post.  This would be at no cost to you, and school district either has to agreed to one or take you to due process to show why they shouldn't provide an IEE (so 99% of the time the request is granted).

Yes.  Like Carolyn said:  Requesting an IEE at school expense is the next step when the eval is inaccurate or incomplete.  (Was the testing done in June when your child was in 7th?)  Comparisons should be to a typical peer and not a student with an IEP.

https://adayinourshoes.com/iee-independent-education-evaluation/