I don't know if these still exist, but does anyone remember the old "Iowa" tests?

While in elementary school, these tests were given every year to determine the educational growth of students.

I have always thought these types of tests would be a better indication of a students capability.

Not only that, cumulatively, they would show the students natural bent toward certain subjects and areas of study.

And if a student shows, in their last few years in high school, a sudden bent toward math, it will be reflected as such.

The proficiency of ability would be shown in the tests grade. Especially if it is concurrent over several years. And shows improvement as the tests become more expansive with more challenging questions.

Just my two cents.