According to this chart I am left brained.
I like planning, I am rational, I like reading the directions, I am very realistic(I don't let being let down), and I do not like working in groups.
Some of the exceptions are that I hate classical music, I suck at math and science, and I am not a fan of dogs.
My right brained qualities are that I am a cat lover, I can be impulsive, I love a good mystery, I like background music, and I process better when I have an answer and then work back to the starting point.
Overall, I think I have a decent mix of both sides.