> Could people self-select what they "want" to be? Sure, but it's still predictive of something in that case. Why would measuring self-selection be a good thin

> Could people self-select what they "want" to be? Sure, but it's still predictive of something in that case. Why would measuring self-selection be a good thing, why would that be a reason to use MBTI in your book, rather than a reason to avoid it? If it does measure self-selection, then what is the function or purpose of the test?