I've seen this in a lot of people's signatures, so I decided to do it. I did something very similar at school near on a year ago; but that was over the course of a few days and we had seminars and did activities, etc. At school my final result was
INTJ. So, this test must have some truth, as I scored close to that.
More about this personality is
here.
Or, take the
test yourself! ^_^