I've taken this test before, can't remember what I ended up as, only that it began with I, possibly INTP, which is odd seeing as I was the only one who ended up with that as my result, and yet it is second most popular here. Mind my colleagues were a bunch of incapable and idiotic buffoons. I was told, along with the other 1 typers out there, I think there were 2 or 3 others, that we would be valuable friends to anybody due to the variety we would bring, this failed to see a boom in my social life. I may have been INTJ though, either way, I looked at the descriptions of the two sets, and of course there aren't many differences, seeing as they are but seperated by a letter, I found them fairly accurate.
Of course rather than leave things to a 5 year old memory and be plunged into the two largest groups and lose my social value I took the test again. So all you mother****ers can get your filthy, downtrodden hands off of me. I'm better than mere forum rabble!
How dissapointed I was then when it showed me to ISTJ, the answer the first respondent in this thread. Slight relief when the result confined itself to more of a rarity. ISTJ, The Duty Fufiller, obviously why I seek to avoid commitment in what is just mere words. Amusingly the description wasn't far off, and a later section even touched on the fact that I'm always right. Then again I believe I could find something that seems like me in any of those sections, Eorlingas' extract would fit me for example, but it really all depends on the context and situation because this kind of test has such a high confirmation bias in the interpretation of the results. Answering such confining questions was incredibly difficult and only served to make myself skeptical of the result. I almost didn't take the test, but having done it before I was intrigued in garnering another result.
The reliability of the test is terrible though, you know 64% of people tested again after nine months got a different result? Some even got a different result when they took it again at a later time in the day. (Harvey, 1996)
Reference: Harvey, R J (1996) Reliability and Validity, in MBTI Applications. A.L. Hammer, Editor. Consulting Psychologists Press: Palo Alto, CA. p. 5- 29.