Have you ever taken one of those personality quizzes on the Internet? The ones where you answer a handful of questions to identify the kind of person you are. Surprisingly, you always find the answer to be 80-100% correct. If it isn’t, you simply take the test again, and the second time, you get it right. Seems impressive, doesn’t it? If, however, you factor in the possibility that the same 10 results fit thousands of people, you may have a better understanding of the psychological pitfall of biases.
