Free MBTI Occupational Personality Test (Myers Briggs Type Indicator)

The Myers-Briggs Type Indicator (MBTI) is a theoretical model of personality types developed by American author Isabel Briggs Myers and her mother, Catherine Cook Briggs.

It is based on the eight psychological types delineated by Swiss psychologist Carl Jung, thus putting Jung's theory of psychological types into practice, and was compiled into the Myers-Briggs Type Indicator after more than two decades of research. Based on Jung's concepts of superior and inferior functions, dominant and subordinate functions, Myers further proposed concepts such as functional hierarchy, and effectively determined the order of its functional hierarchy for each type, and in turn put forward the theory of lifelong development of types, forming four dimensions.

John. Dr. Bibby systematically brought together psychological type theory and prototype theory in Types and Prototypes.