You’ve probably heard the idea that you resemble the company you keep. This theory appears in several idioms, including “Birds of a feather flock together” and “Water rises to its own level.” What about the claim that you are the average of the five people you spend the most time with, a quote attributed to motivational speaker Jim Rohn? Is it possible that your personality could change according to your friend group? Or any company you keep?
Let’s take a look at how this idea applies to personality theory.