Due to health issues, I've fallen behind in posting here. Apologies to my tens of readers worldwide. Hopefully I will pick up the pace soon.
I do point to this study that says basically the greater an individual's news literacy, the less likely they are to believe in conspiracy theories. It's main flaw is it doesn't cite me.
Also there's this brilliant piece of research that everyone should read, memorize, and recite to random strangers on the street.