Good old Meyer Briggs test and Jungian archetyping. My psychology teacher and also a friend of my parents, real smart guy showed me all this way back in high school. I have taken various forms of the test and pretty much always end up with ENTP or INTP each time (usually depending on my mood at time of the taking of the test).
Haven't taken this particular form of the test yet in the OP, though I will have to do that a bit later today since I haven't taken it for a while and its real intriguing to retake the test periodically and see what changes it gives from previous testing and I like to analyze what I think are accurate and not accuate or somewhat accurate but maybe not as much of importance as the synopsis makes it seem. At first first I saw a lot of things that are true indeed with both archetypes and my personality, but then I always feel as if the more I learn the more I find that really all people transcend all the archetypes given the circumstances.
Cool topic either way always very interesting to analyze sociology/psychology in my opinion, and I was just thinking of the Jungian archetypes the other day when I seen monicat's comment about them. Quite appropriate for a little threadsurrection.