The 16 types are missing two traits.
Here are all 64.
The classic four-letter test misses two of the best-studied traits in psychology: how you handle stress (Emotional Stability) and how sincere and status-driven you are (Honesty-Humility). We measure all six, using public-domain research items scored against about 20,000 real responses.
What makes this different
Your four letters map onto Big Five traits that research has linked to the classic E/I, N/S, F/T and J/P scales. The two extra letters add traits the classic test leaves out.
Scores are compared with large public datasets (N≈19,700 and N≈22,800), so “high” means higher than most people, not just above the middle of the scale.
Close to average on a trait? We tell you, and show which type you might get on a retest. That is the main reason type tests seem to “change”.
Career, love, friendship and wellbeing insights come from peer-reviewed meta-analyses, with effect sizes put in context.