I'm sure threads similar to this thread have been posted, however, I would suggest with equal certainty that this is the case with 90% of the threads on this forum. Thousands of threads within subforums...What's left?
I'm thinking of compiling some research (I see that this subforum has data collection at the top - I will check their methods and data out) and reworking the MBTI over the next 18 months. Since I've become interested in it, I have found it to be consistent and surprisingly accurate. That is why it is a great candidate for revision - better to revise that which is closest to the truth. It's a buffer against wasting time and energy.
I've studied Philosophy and Psychology, so you may suppose that my psychological interest is highly theoretical. You would be right. That brings me to my first criticism of the MBTI...but maybe I shouldn't jump the gun.
I'll post an egregious error or two, and then I'd like you to contribute, both by criticising mine and suggesting your own. A criticism isn't usually enough, though. Propose a solution to your problems if you can and will.
The two greatest errors in the MBTI are:
1) Far too much emphasis on the purported behaviors of those representing each type.
This is very difficult to be scientific about. It's hard to produce research about the behaviors of people when your samples are only so large, and they are divided into sixteen sections. Why someone is driven to behave how they do is far better. I hear a lot of people saying that they were a P, but now they're more J. Interesting though, a P becoming organized with time and resources should change their primary and secondary functions. Are the types more plastic than is usually said, or are other functions used so frequently that they could account for some of the variation in behavior? Something's not right here.
2) People frequently fit into type profiles snugly, and still test as something else - even if only for the first time.
The test itself is not good enough. If you were an instructor who passed out this test the first day because you thought the reflections of your students in this regard may compliment the course, or for any other purposes really, you would want more than 3/4 or 4/5 to yield accurate results. What's going on here? It is difficult for one to answer accurately about themselves, I know. Knowledge of the Self is taken so much for granted, but people are usually so ignorant. The test should be modelled to account for this.
What do you think? My structure for how to format your answers is a guideline, of course. Answer how you'd like.