Introverts v. Zoom v. Extroverts My 16-year-old daughter has become fascinated by the Myers-Briggs Type Indicator®. No, she’s become obsessed. You know it. That’s the personality test that describes you in four letters (Your “Type”). What could be more appealing to a sociable teen than that? Apparently there are sites where you can take the test for free online, and after doing so she persuaded her friends to take it.