But there’s actually meaningful criteria that sheds some light on the critical thinking capabilities of people who can or can’t read at certain levels, especially as it pertains to propaganda. Below a certain level, people are not well-educated enough to critically assess a text against the motivations of its authors (somewhere around 9th grade). Americans are prone to conspiratorial thinking so you might think that that’s alright because they’re often skeptical of any text, but it just seems like it causes them to dig even deeper into the propaganda that’s targeted to them.
It’s kind of like learning that some people don’t have an inner monologue, or that they aren’t capable of imagining shapes or objects abstractly in their mind. Except it’s a lot more serious as it deals with critical thinking directly: these people don’t understand that what they’re reading was written for a purpose.
