How does a psychologist determine from your answers to personality questions whether you are an introvert, extravert, or somewhere in between? (The same question can be asked about other personality ...

See our cover story, “The Upside of Being an Introvert.” See our gallery of the great introverts and extroverts in history. Contact us at letters@time.com ...

They say that opposites attract, and it looks as though that’s the case for introverts. They often attract extroverts, but how does that work? After all, one person prefers to keep to themselves while ...