How Two Women With No Psychology Degrees Created the MBTI Test
Katharine Cook Briggs and her daughter Isabel Briggs Myers, neither of whom held psychology degrees, developed the Myers-Briggs Type Indicator (MBTI)—now the most widely used personality assessment in the world, taken by over 2 million people annually. This remarkable story of intellectual curiosity, determination, and decades of research demonstrates how two self-taught women revolutionized how we understand human personality, despite facing skepticism from the academic establishment throughout their lives. Infographic showing Katharine Briggs and Isabel Myers the two women without psychology degrees who created MBTI personality test The MBTI has become a cornerstone of corporate training, career counseling, and personal development programs across the globe. Fortune 500 companies, government agencies, and educational institutions rely on this assessment to improve team dynamics, hiring decisions, and self-awareness. Yet few people know the extraordinary origin story behind this i...