Add Yahoo as a preferred source to see more of our stories on Google. A personality test usually involves a suite of questions meant to bucket the test-taker into a category said to describe their ...

The following essay is reprinted with permission from The Conversation, an online publication covering the latest research. Have you ever clicked on a link like “What does your favorite animal say ...

Everyone loves a good personality quiz (the scientific version of astrology), because everyone is interested in herself, of course. But how many personality types are there, really? According to new ...