The Big 5 Personality Inventory is pretty much the gold standard in the field of psychology. The traits it measures are reasonably (though not completely) stabl

The Big 5 Personality Inventory is pretty much the gold standard in the field of psychology. The traits it measures are reasonably (though not completely) stable over a person's lifetime, have decent predictive power, and have been tested and studied rigorously for decades now. They have nearly nothing in common with Meyers-Briggs. In particular, each of the traits is measured on a separate spectrum—none of them are treated as binary the way M-B does, and they don't seek to pigeonhole you based on your levels of the different traits into some oversimplified bucket.