I’m jumping in late, but isn’t it kind of obvious? Making a high school text harder to read could simultaneously improve retention if you are obligated to read it and at the same time be a bad move for something people must elect to read.
I’m jumping in late, but isn’t it kind of obvious? Making a high school text harder to read could simultaneously improve retention if you are obligated to read it and at the same time be a bad move for something people must elect to read.