The History of DISC
From Wonder Woman to the Boardroom: A proven behavioral model that has transformed how we understand human behavior.
The Evolution of DISC
Hover over each milestone to explore the journey
William Moulton Marston
Harvard psychologist publishes "Emotions of Normal People", introducing the foundational theory of Dominance, Inducement, Submission, and Compliance.
The Wonder Woman Connection
Marston created Wonder Woman in 1941! He saw her as embodying the ideal balance of DISC traits - powerful yet compassionate, direct yet supportive.
The Polygraph Pioneer
Marston's research on blood pressure changes during emotional states contributed to the development of the lie detector test (polygraph).
Walter Clarke
Industrial psychologist develops the "Activity Vector Analysis", transforming Marston's theory into a practical assessment tool for business applications.
John Geier & Personal Profile System
University of Minnesota professor simplifies and modernizes the assessment, creating the Personal Profile System (PPS) which became widely adopted.
Global Standard
DISC is now the most widely used behavioral assessment in the world, trusted by Fortune 500 companies, schools, and individuals globally.
Why DISC Has Stood the Test of Time
Simple enough to understand, powerful enough to transform how you work and relate to others.
Simple Yet Powerful
Four intuitive styles that are easy to understand and remember, yet provide deep insights into behavior.
Research-Backed
Decades of validation studies confirm the reliability and predictive validity of DISC assessments.
Universal Application
Works across cultures, industries, and contexts - from Fortune 500 companies to personal relationships.
Actionable Insights
Results translate directly into practical communication and behavior strategies you can use immediately.
Experience DISC for Yourself
Join the millions who have discovered their behavioral style. It's completely free!
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