If you’re going to claim that Christian Nationalists are dumb as hell then I’ll agree with you.

However, if you’re going to claim to have a scientific method to measure “cognitive ability” then I’m going to call you full of shit.

So, let’s look at what the article says they actually measured:

lower scores on a vocabulary test commonly used to measure cognitive ability

A vocabulary test… they did worse on a vocabulary test.

So like I said; calling this a measure of cognitive ability is bull shit.