So, I have ADHD. One of my typical accommodations on Standardized Tests (including the SAT's) includes an additional 50% time extension. The Practice Mini Quizzes don't account for that, or allow me to opt that extra time in. Thus, I have to work faster than I normally do, which leads to mistakes that I could otherwise avoid. And as a result, I go down skill levels when normally I wouldn't.

My idea is basically: include the ability to opt into accommodations (or allow for them somehow) on Kahn Academy for people (like me and many others) who may need them.