I believe in most states, I know it is in Florida, the Superintendent is legally responsible for the education all K-12 student within the district, regardless of whether they are home schooled, in public, or private school. However, the actual availability of services such as testing and special ed. varies from district to district. It shouldn't but it does.You use the word system as if there were one system. There are as many systems as there are districts and services can vary tremendously from district to district. In the district I worked in, I doubt you would have the problems you experienced. The reason is our superintendent and board were commitment to partnering with private schools, homeschoolers, and the community to provide quality education to all students in the district.I doubt very much that you've dealt with attempting to get services provided from public schools either from private schools or homeschooling. For the past 8 years it's been close to impossible to get them to agree to testing until March, by then they've run out of budgeting and try to get the case carried over into the next school year. Call in the fall and they respond with, after we finish testing here, we'll call back. It takes the parents to threaten lawsuits and guess what? These are often the same folks who pulled their kids out of public schools because they didn't want the child tested in the first place.
You do not have an inkling of the system.
Homeschooling parents have a very difficult time just getting the appropriate texts even though the school must provide them or provide the ability to get them through publishers.
BTW, standardized tests are interchangeable. Each state has their own version of 'state tests' based upon certain criteria. Iowa Basics and Terra Nova have both been providing the same, for more years than any state tests.
Sorry about your bad experience.
You were the one that started speaking in generalities. You were the one that spoke about 1 test for public and standardized testing in other schools not being of the same standards. Ha, my guess would be that in creationist leaning states, their 'standardized' tests by the state are not quite that. You won't see that problem with independent tests such as Pearson, (Terra Nova) or Iowa Basics.
You 'doubt' regarding your 'system'? LOL! What would you expect the superintendent to say regarding 'best for all', since the requirements are law? As I said, you've not an inkling.
BTW As I recall Iowa Tests of Educational Development is just for grades 9-12.