... and DD scores VERY well on that one (both E and M) and on SAT Lit, but struggles with all of CB's math tests. The ACT math, she's golden with...

Anyway. I think what that demonstrates, actually, is that those tests don't always measure what they supposedly measure. I'm pretty sure that there aren't really major differences in the level of subject competence for my DD and intparent's DD in Biology, for example. I'm assuming that both young women have excellent mastery of that material. It's just that for whatever reason, my DD can get "inside" the subject test on that one, and her DD finds that challenging. That isn't necessarily about the subject itself.

Same with math. My DD has a lot of trouble with the CB format and style of questions.

That raises a lot of concerns in my mind, though-- kids with conventional schooling have a way to demonstrate "kid who doesn't test as well as s/he should" but homeschooled students may not. That really doesn't seem right.


Schrödinger's cat walks into a bar. And doesn't.