I just took the Bartle test and here are my results:

Achiever 33.33%, Explorer 46.67%, Killer 53.33%, Socializer 66.67%

SKEA players enjoy teamwork and cooperation, but feel that the main challenges of a virtual world come from the other players rather than the environment. They enjoy forming groups and alliances that will pit themselves against other players--and they gain the most satisfaction when they defeat organized groups of other players. When they aren't playing against other players, they enjoy all of the social aspects of the game.