The MBTI was initially developed in the 1940s by Katharine Cook Briggs and her daughter, Isabell Briggs Myers, loosely based on a personality typology created by psychoanalyst Carl Jung.

Catherine Cook Briggs and her daughter, Isabel Briggs Myers, lived in Swarthmore in the 1940s. They developed the Myers Briggs Type Indicator drawing from theories of personality types by ...

The MBTI was initially developed in the 1940s by Katharine Cook Briggs and her daughter, Isabell Briggs Myers, loosely based on a personality typology created by psychoanalyst Carl Jung.