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How does the Myers-Briggs Type Indicator measure personality?

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Margaret Mead conducting fieldwork in Bali — personality American anthropologist Margaret Mead with a woman and her niece in Bali, 1936. Mead conducted fieldwork there to study the role of culture in personality formation.

The Myers-Briggs Type Indicator (MBTI) is a self-report personality assessment designed to indicate different psychological preferences in how people perceive the world and make decisions. It is not a measure of ability or a diagnostic tool for mental disorders. The MBTI categorizes individuals based on four dichotomies: extraversion versus introversion, sensing versus intuition, thinking versus feeling, and judging versus perceiving. These preferences are believed to reflect innate inclinations rather than learned behaviors.1

The MBTI is used in various settings, including personal development, career counseling, and team building, to help individuals understand their own preferences and those of others. It aims to provide insights into how people interact with the world and each other, fostering better communication and relationships. However, it's important to note that the MBTI is considered a tool for self-discovery and understanding, rather than a definitive measure of personality.21