I have done these before and had the results professionally analyzed by those trained in MBTI interpretation. The results are usually the same with only one characteristic flip-floping from time to time. Companies often have their executive teams complete these tests not to weed out "misfits" but more typically so one executive will understand how to work with another. If you know, for example, that Executive A is an introvert and you are an extrovert, the best approach to Executive A is not to invite him to a social occasion to discuss the next project. Executive A will not be comfortable and the extrovert's efforts will be less productive. Executive A will be happier if you go to his office and talk quietly with him one-on-one after giving him a written proposal he can analyze.
My results from the linked test:
ISTJ: "Trustee" - Decisiveness in practical affairs. Guardian of time-honored institutions. Dependable. Approximately 11.6% of the total population.
Introverted: 60%
Sensing: 71.43%
Thinking: 81.48%
Judging: 66.67%
The probability of a member being other than an introvert if happy in a real time strategy gaming internet site like HG would be unusual. The attraction of playing one-on-one against a computer and not a real player voids the social aspects of board gaming and is the introvert's cup of tea, as is the anonymity of the internet itself. Further, no RTS player is likely to be other than Thinking "T" since an orderly approach to this kind of game demands the kind of thinking which is the hallmark of a someone who is an analytical-minded person. If a city-builder, doubly so.
Keep in mind in evalutating these test scores that the test only suggests a tendency, not an absolute. The higher the score, the greater the tendency. Thus, if you score 51% in a category, that doesn't imply it's your exclusive type of response simply because it's in the majority. In fact, it actually suggests a degree of unpredictability as to how you might respond situation to situation.
Where I flip-flop from time to time is in the category of Sensing "S". I've come to the conclusion that this characteristic is influenced by my current environment when I take this kind of test. In a few past iterations, I have leaned towards Intuitive "N" in place of Sensing "S". In my case, with a 60% score in Introverted, it means I will tend toward that behaviour, but will surprise people by breaking out of my shell and behave as an extrovert with only minor stimulation in a social situation. However, my circle of friends will typically be smaller than an extrovert's as I won't go out of my way to introduce myself to everybody who is a stranger to me in a group of 100. It would be my tendency to wait for extroverted strangers to introduce themselves to me.
That's why I never pursued a working career in sales. An ISTJ or INTJ is highly unlikely to ever succeed in a sales or marketing career because those fields beg for a different kind of personality profile. My career is in business operations, including manufacturing/warehousing and distribution. This is fertile ground for a person with the ISTJ or INTJ profile.
[This message has been edited by Civis Romanus (edited 03-30-2011 @ 12:15 PM).]