[Telaneo]

I'm curious how this lines up with US literacy rates. Is the group of people who can't navigate a two page online form the same as the one have reading comprehension skills on a 5th grade level or lower? Or do they at least largely overlap? In my experience they do, but it'd be nice to have confirmation.

I got taught in school to check whether or not the piece of paper we got with the test on it had something on both sides, so you didn't hand in a test that was only half done. I thought that went without saying back in the day, but given that filling out a two page form is a non-trivial task for what should be literate people, I guess it doesn't.

[antasvara]

Your intuition is largely correct. For any given level of adaptive problem solver, approximately 55% of those people share the same literacy level (i.e. a Level 1 adaptive problem solver is also a Level 1 for literacy around 55% of the time). 35% have a reading level that's 1 up from their problem solving ability, and around 10% have a literacy level 1 below their problem solving ability.