[Json221]

Could be wrong, but what I was taught in psych was that no IQ test is reliable past early childhood (ages 5-7ish) because then it starts testing knowledge and not intelligence. In fact, I believe IQ tests are meant to predict how well you'll do in school rather than how generally "intelligent" you are, and there are multiple theories of intelligence including ones about multiple intelligences (emotion, logical, natural, spatial, etc) and ones about general intelligences.

Basically I'm trying to say that IQ tests are pretty worthless in my opinion. Besides, imagine if you score very low or very high. Are you going to live your life any differently? It wouldn't make sense to do so.

 

[Json221]

I mentioned general intelligence (g) right after multiple intelligence (though I made it plural by accident). Anyway, my intuition tells me that it's extremely hard to separate knowledge from intelligence past middle school. An "intelligent" person might not necessarily know how to do derivatives or solve a certain type of puzzle they've never seen before. I'm guessing most adult IQ tests rely on the participant having not seen these types of problems, or making the problems about very easy to test skill like association and prediction. I can't imagine how these would be accurate to less than +- 10 IQ points, which is about 1 standard deviation for the population's IQ. I may be wrong, but I doubt it.

MBTI has actual practical use and it's consistently used in the business world. I have experience with this. IQs, on the other hand, are essential tests that predict how you'll do in life, but mostly school (the rest tend to correlate) (from wikipedia: "IQ scores are used as predictors of educational achievement, special needs, job performance and income". The way I can objectively say one is more useful than the other is by stating that Myers-Briggs can be a great tool for understanding and working with other people, while IQ is only useful for introspection - and not very useful at that, considering success is much easier to attain via hard work than raw talent.