Who were Myers and Briggs?

Katharine Cook Briggs (1875–1968) and her daughter Isabel Briggs Myers (1897–1980), originators of the MBTI instrument, were keen and disciplined observers of personality differences.

Briggs studied Jung’s ideas and extended and applied them by studying family and friends.

The two women classified behavior differences, connected them to Jung’s ideas, and wrote questions and developed the Indicator to categorize the differences.

This Indicator would go on to become the most widely used personality inventory in history.