This test, also called the MBTI, was developed during World War II to categorize a person’s personality type. You take a formal questionnaire, which then lumps you into one of 16 personality groups.

personality test based on the following sets of four dichotomies: Introvert (I)/Extrovert (E) Intuitive (N)/Sensory (S) Thinking (T)/Feeling (F) Judging (J)/Perceiving (P) Based on the results of MBTI ...