Myers–Briggs Type Indicator

The Myers-Briggs Type Indicator (MBTI) is a self-report questionnaire that categorizes people into 16 personality types based on four dichotomies: introversion/extraversion, sensing/intuition, thinking/feeling, and judging/perceiving. Developed during WWII by Katharine Cook Briggs and Isabel Briggs Myers, it was inspired by Carl Jung's theories but has been widely criticized as pseudoscience. Research shows the MBTI has poor validity and reliability, with most people scoring near the middle of scales rather than in distinct categories. Test-retest reliability is low, with around 50% of people getting a different type after five weeks. The MBTI lacks predictive power for job performance or happiness and is not recommended for hiring. Despite this, it remains popular, with millions taking it annually, and has recently become a fad in South Korea and China for dating and job screening.