Dath Ilan is a parallel Earth on which human civilization has its act together, in ways that actual-Earth does not. Like actual-Earth, citizens of Dath Ilan sometimes take standardized tests, both to figure out what sort of jobs they'd be suited for, to make sure that its educational institutions are functioning, and to give people guidance about what they might want to study. Unlike Earth's, Dath Ilan's tests have had a lot of thought put into the choice of topics: rather a lot more economics, rather a lot less trigonometry and literature. Topics are selected based on cost/benefit; something that takes a long time to learn would need to be a lot more useful, or have major positive externalities to more people knowing it.
I want to create a test, that will tell people what topics they ought to learn, and enable people to make their knowledgeability legible.
What topics belong on it?
A curriculum can only fit so many things, so everything that's included means something else can't be. Think of it this way: Would you rather spend 100 hours learning basic programming and 100 hours learning moral philosophy, or 100 hours learning geography trivia and 100 hours learning Shakespeare? And would you rather live in a world where everyone else knew basic programming and moral philosophy, or a world where everyone else knew geography trivia and Shakespeare?
Cost/benefit analysis works best if you're broad in what counts as a cost and what counts as a benefit. Eg if students find learning Shakespeare enjoyable, that would count as a benefit. My subjective experience, though, was that school literature courses didn't line up with what I actually wanted to read, so they weren't particularly enjoyable, and they were a lot less informative than an equal number of hours of nonfiction blogposts would have been.