I have done the full Myers Briggs at work which takes a few days, and the questions are a lot more subtle! (Come on... for the difference between E and I is 'do you like spending time on your own' and 'are you comfortable in large groups' really unbias questions? You arn't meant to be able to shoehorn your answer in quite so much!) I turned out as INFP. Very strong introvert, just slightly towards intuitive and feeling, and moderate on perceptive.
The surprising part of this is I am an Officer in the RAF. My job on a day to day basis is working with a lot of people the exact opposite personality type in all fields. The idea of this personality test is to find what you are, compare it to others, and then learn how to change how you are perceived to gain an advantage in situations.
For instance; I am a strong introvert, but I work with primarily extroverts. Not only that, but I am often in charge, and therefore have to keep my command presence and the trust of my troops. Extroverts will strive to answer a question straight away if the answer is known, where as introverts will tend to reaffirm silently first before answering. Or if someone else talks they will wait their turn. Extroverts will perceive this waiting as being unsure and a weak decision maker, even if that is not the case. As a learned behavior I have to adapt in situations and make a concious effort to make bold quick answers, even though it makes me uncomfortable, in order to keep the trust and presence over my team... not an easy task I assure you...
But there we go... that is one way you can use this, what can seem like bullshit, theory to advantage in life! Don't however try and use these labels as excuses for your own actions, (like I have seen people IRL do) but learn why you do things, and how you can change that to make a situation better!
