We are a commune of inquiring, skeptical, politically centrist, capitalist, anglophile, traditionalist New England Yankee humans, humanoids, and animals with many interests beyond and above politics. Each of us has had a high-school education (or GED), but all had ADD so didn't pay attention very well, especially the dogs. Each one of us does "try my best to be just like I am," and none of us enjoys working for others, including for Maggie, from whom we receive neither a nickel nor a dime. Freedom from nags, cranks, government, do-gooders, control-freaks and idiots is all that we ask for.
All examinations discriminate among people. That's their purpose. The purpose of bar exams is to discriminate on knowledge and skills. Medical licensure examinations discriminate on knowledge and skills. And let's discuss commercial pilot's licenses.
When you look for something that tests discriminate on, you can find it. IQ, study habits, educational background, character traits, family background, race, age, height, etc. You can find whatever stats you look for, but all the tests are looking for is to see who can do the thing, and who can not do it. That is discrimination of the able from the unable. It's the individual that matters.
For Christ's sake, if you can't understand simple written English, how can you be paid teach it? You might almost imagine that teaching was just a government job.