My omly problem with that test is that some the questions arn't worded proporly. For example "You think anything can be analysed" should be "you think anything can be analysed logically" because thats clearly what its refering too. I'm a pretty strong F (60-75%), but i still analyse things, but in a typical "F" fashion, and also in a very "N" way, too, where I think about how people would have felt, and how events and places all come together, and how it makes me feel.
Also, "You can relate to soap operas" or whatever is bad because some people will say no because they don't watch soap operas. This question is clearly asking about F functions, and someone who gets deeply involved in other kinds of film and TV will say no and have some of their feeling qualities overlooked.
Yes, I would agree, and I have a strong suspicion I'm 'more F' than I tend to test out. Regarding the soap opera question - I answered in the negative because I think soap operas are silly, a waste of my time, and I've never gotten sucked into them. However, there is one current tv show that I've completely gotten absorbed in and have really connected with the characters and 'root' for their romances, and I have a silly grin on my face the entire time I watch the show..... ;-)
Something funny happened to me on an airplane on Tuesday. I was sitting next to a young couple, chatted a bit before the plane took off, and then 30 minutes into the flight the girl pulled out a folder that had computer printouts of mbti stuff from 'personality pages' -- I blurted out..'Oh, mbti!!!'

She asked what I was, and I said - 'oh, I suppose a chameleon of INFJ, INFP, and INTJ'.
She laughed right when I mentioned infj, and then said, 'That's what he thought'. The guy apparently uses mbti theory rather extensively in his career, so is pretty familiar with it, and right before she'd pulled the folder out he'd whispered to her that he thought I was an infj!!! Wow...I must be obvious in my mannerisms!!! ;-P Incidentally, she was an INFP, he an ENFJ, and then me a probable INFJ -- I commented, 'Wow, three NF's in a row', and the ENFJ said, 'Yes, we'll change the world'.
Ok, sorry for the tangent -- but the whole thing tickled me. It was so random and bizarre.
