Glossary · Myers–Briggs (MBTI)
Myers–Briggs (MBTI)
A 16-type personality system. Friends? doesn't use it — we use the Big Five — but explains how the two map onto each other.
Myers–Briggs Type Indicator (MBTI) is a 16-type personality system based loosely on Carl Jung's writing. It divides people into combinations of four binary preferences: Introverted/Extraverted, iNtuitive/Sensing, Thinking/Feeling, Judging/Perceiving — producing types like INTJ, ENFP, ISFJ.
MBTI is enormously popular but is not academically respected the way the Big Five is. The main critiques: poor test-retest reliability (many people get different types when they re-take the test), the binary-categorical structure isn't supported by the underlying data (continuous Big Five-style dimensions fit better), and the four dimensions aren't truly independent.
That said, MBTI's letters do correlate with Big Five domains: I/E ≈ Extraversion (inverted), N/S ≈ Openness, T/F ≈ Agreeableness (very weakly), J/P ≈ Conscientiousness. So if you know your MBTI type, the rough Big Five mapping is still useful intuition.
Are We Friends? matches on the Big Five, not MBTI. If you arrive curious about your MBTI type, see /big-five-vs-mbti for the full bridge.
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