The Myers–Briggs Type Indicator (MBTI) is a self-report questionnaire that makes pseudoscientific claims to categorize individuals into 16 distinct "psychological types" or "personality types".
The MBTI was constructed during World War II by Americans Katharine Cook Briggs and her daughter Isabel Briggs Myers, inspired by Swiss psychiatrist Carl Jung's 1921 book Psychological Types. The test assigns a binary value to each of four categories: introversion or extraversion, sensing or intuition, th...