system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is standardized testing so expensive?

I live in a state where all high school juniors take the ACT.

Some of my students will be taking it tomorrow. Considering tests such as ACT / SAT / SAT II / AP are usually proctored by teachers and are offered at schools (though grad and professional schools seem to offered at testing centers) and that many tests are multiple choice, why are standardized tests so expensive? I know there's research and development and grading costs for essays / written portions, but at $50ish per test ($90ish for AP) these tests seem pricey for what they are.
gpt
1. make the test.
2. advertise and promote the test.
3. proctor the test
4. grade test, mail test, respond to request for copies,scores, etc.
5. defend against lawsuits from crazy parents.

Given that it can cost 15-20 for 1 hour yoga class, you have to imagine that 4-8 hours in a proctored classroom is going to at least cost more than that.  Now add the others!