I’ll happily answer any pseudoscience claims. After IQ, personality traits and facets are the most accurate measure in psychology, and after that, stereotypes are the most accurate measure in Social Science. Even criticisms of MBTI are due to (a) the set of questions isn’t large enough (b) the resulting measures are only a bit different from Big5/6 Ocean. With some measures quite accurate (the corners) and others more variable. Big 5/6 facets are extraordinarily accurate, though my work (our work) has explained they are largely differences in before, during, and after information processing. And even then facets are measures of sex differences in evolutionary strategy, brain organization, and the resulting personality.
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