16 Types
Inspired by the Jungian four-letter types, with our own questions.
Preview. Payments are not switched on yet, so every test is open.
What it measures
Four preferences, each a pull between two letters. Energy: outward (E, for extraversion) or inward (I, for introversion). Information: concrete facts (S, for sensing) or patterns and possibilities (N, for intuition, since I was taken). Decisions: head (T, for thinking) or heart (F, for feeling). Structure: planned (J, for judging) or open (P, for perceiving).
Four letters hide how close each one was. We show each preference as a slider, so you can see whether your I was an 80 or a 52. When a letter lands near 50, the report says so and describes both sides.
The honest part: the evidence for four-letter types is modest. The preferences line up with four of the Big Five traits, and letters often flip when people retake the test. It is still a good read and a good conversation. If you want the version with stronger evidence, Five Traits covers similar ground in more detail.
Three of the questions
- I think out loud when I am working something out.
- I explain things by comparing them to something else.
- I usually pack for a trip on the day I leave.
What you get
- Your four letters, the type they make, and a portrait of that type
- Each preference as a slider, so you can see how close every letter was
- A note on each preference for where you landed, including near the middle
- What your type tends to do well, and what to watch for
Where it comes from
The questions are our own, written for this site in plain language. Each preference is asked about from both directions, so agreeing with everything does not decide your type. The idea of four preferences goes back to Carl Jung's Psychological Types (1921).
Who owns the original
The four-letter types come from Isabel Briggs Myers and Katharine Cook Briggs, building on the work of Carl Jung. The official Myers-Briggs Type Indicator (MBTI) is published by The Myers-Briggs Company; MBTI and Myers-Briggs are registered trademarks of the Myers & Briggs Foundation. We are not affiliated with either, and our questions are our own.