I have been researching the psychology of conspiracy beliefs for seven years now and people often ask me why people believe in them. This is not a simple question. There are many reasons people might ...

Here’s a simple test of reasoning ability: “A bat and a ball cost $1.10 in total. The bat costs $1.00 more than the ball. How much does the ball cost?” (Pennycook et al., 2015). If your answer was “10 ...