I am Sociopath. Lucky me.

I took this online test and my comments are in green.

Sociopath
You are 85% Rational, 14% Extroverted, 57% Brutal, and 85% Arrogant.
I am not sure how I feel about this test, but thank god it's not necessarily for real.

You are the Sociopath! As a result of your cold, calculating rationality, your introversion (and ability to keep quiet), your brutality, and your arrogance, you would make a very cunning serial killer. You care very little for the feelings of others, possibly because you are not a very emotional person. You are also very calculating and intelligent, making you a perfect criminal mastermind. Also, you are a very arrogant person, tending to see yourself as better than others, providing you a strong ability to perceive others as weak little animals, thus making it easier to kill them. In short, your personality defect is the fact that you could easily be a sociopath, because you are calculating, unemotional, brutal, and arrogant. Please don't kill me for writing mean things about you!

To put it less negatively:
1. You are more RATIONAL than intuitive. Probably so.
2. You are more INTROVERTED than extroverted. Duh.
3. You are more BRUTAL than gentle. I sort of disagree here but the test says so down below.
4. You are more ARROGANT than humble. Yeah, well no surprises here.

Compatibility:
Your exact opposite is the Hippie. Other personalities you would probably get along with are the Spiteful Loner, the Smartass, and the Capitalist Pig. Yeah, well we know I'd get along with the Smartass because I am one, dammit.

If you scored near fifty percent for a certain trait (42%-58%), you could very well go either way. For example, someone with 42% Extroversion is slightly leaning towards being an introvert, but is close enough to being an extrovert to be classified that way as well. Below is a list of the other personality types so that you can determine which other possible categories you may fill if you scored near fifty percent for certain traits.

The other personality types: Deleted to save space. Take the test to see 'em.

My test tracked 4 variables How you compared to other people your age and gender:
You scored higher than 70% on Rationality
You scored higher than 12% on Extroversion
You scored higher than 70% on Brutality
You scored higher than 95% on Arrogance

Link: The Personality Defect Test