The Myers-Briggs is an “assessment” that is designed to measure basic personality traits that influence how a person deals with the world;
perceptions, decision-making, etc. Based on the theories of Carl Jung, it was designed to measure naturally occurring differences that exist within the human population as a means of helping people to identify their most comfortable work environments and assignments.
This inventory assumes that everyone has specific preferences for how they organize their lives in relations to their experiences, and how those underlie their values, needs, interests and motivations. At present, this test is the most widely used personality inventory in existence.