http://en.wikipedia.org/wiki/Big_Five_personality_traits http://en.wikipedia.org/wiki/Big_Five_personality_traits Extraverts are described as being "higher ene

http://en.wikipedia.org/wiki/Big_Five_personality_traits http://en.wikipedia.org/wiki/Big_Five_personality_traits Extraverts are described as being "higher energy" rather than getting energy from X rather than Y. As I understand it, the big five is one of the better regarded personality measures among personality psychologists, and "Extraversion" (sic.) is one of the measures. Psychological measures are generally better regarded if they produce more repeatable results (Briggs-Meyers, which despite being discredited is still popular, also uses a -- somewhat different -- extroversion scale).