Even Myers-Briggs is considered to be very problematic. I think the only personality elements fairly well backed by Science are the 'big 5': Conscientiousness,

Even Myers-Briggs is considered to be very problematic. I think the only personality elements fairly well backed by Science are the 'big 5': Conscientiousness, Extraversion, Neuroticism, Agreeableness, Openness to Experience. It's fundamentally scary that any advanced nation would be taken in by any of this.