One of the most famous tests that can help us categorize individuals into personality types is the “Myers–Briggs Type Indicator” (MBTI). This questionnaire was designed by Katharine Cook Briggs and her daughter Isabel Briggs Myers. The test hinges on the conceptual theory of Carl Yung to a great extent with certain alterations.
The definition of a personality type is possible through self-evaluation on the base of four dichotomies:
Introversion / Extroversion
Sensing / Intuition
Thinking / Feeling
Judging / Perceiving
The combination of these pairs yields 16 possible combinations. The rarest of them is the INFJ, namely the Introversion – iNtuition – Feeling – Judging type. The last characteristic, the Judging parameter, makes these people unique since these contrasts with the previous features. This type of personality is moral, creative and sensitive but also with a sense of duty. So, there are not idle dreamers, but they want to apply their idealism in praxis. Thus, they combine empathy with a practical mind. That’s why the persons having this kind of personality can make good consultants, Teachers and Psychiatrists.