The flaw

Every personality test ever made has the same author: you.

MBTI. Enneagram. DiSC. 16Personalities. Different costumes, one method. You describe yourself to yourself, and the description comes back wearing a lab coat.

1.56B

tests taken at 16Personalities alone. Every single one of them graded by the person sitting the exam.

16Personalities, reported total

~50%

of people come back a different type when they retake one of these within five weeks. Same person. Same month. New label.

Test-retest research on type instruments

44,178

people in the research that checked the other direction. Ask someone who knows you well, and their read of you predicts what you actually do at least as well as your own does.

Connelly and Ones, observer-rating meta-analysis

There are two datasets. You only have one.

What you can tell us

Identity

Who you understand yourself to be. Why you did the thing you did. What you were actually trying for when it went wrong. Nobody else has any of that, and no test that skips it is worth taking.

What only they can tell us

Reputation

What people walk away with. Not what you meant. What arrived. You have never once been in a room as anyone other than yourself, so this is the one thing about you that you cannot go and check.

That second half has always been out there. Nobody has been able to collect it without ruining it. Ask your friends directly and three things go wrong. They soften it, because you will know who said what. One strong opinion starts sounding like a consensus. And somebody has to decide what is fair to say about a person who is not in the room.

What we are not claiming

Your version is not worthless and theirs is not the verdict. Both are partial. They are better at calling what you will do next. You are the only one who knows why you did it. Neither one wins. The interesting thing is the distance between them, and reading that distance is the whole product.

This is not a clinical instrument. It is not a hiring tool. It does not decide who you are, and it will not tell you anything five people could not have told you. What it does is take what they described independently, count it, and refuse to write down anything the evidence will not carry.

Find out what they would say.

About four minutes. Your results are free, including what your five agreed on. Nothing reaches anyone until you pick the five.

Start the testOr read the 16 types first