Thus, the MBTI was developed with the intention of helping people find jobs and careers that were better suited to their innate personalities. As mentioned, there are four general dichotomies or traits: For personality, the spectrum is extroverted (E) to introverted (I). For perception, the spectrum is sensing (S) to intuition (N). For judging, the spectrum is thinking (T) to feeling (F). For implementation, the spectrum is judging (J) to perceiving (P).