
The empirically based California Psychological Inventory™ (CPI™) helps identify and develop the best leaders for your organization.

Developing Self-Awareness to Unlock Potential
Humans are inherently unique, yet we don’t always fully recognize or understand our differences—sometimes not even within ourselves. This lack of awareness can make it difficult to truly connect with others and may lead to misunderstandings, frustration, or conflict. But when we develop greater self-awareness and learn to appreciate our differences, we start to build a foundation for clearer communication, stronger relationships, and greater personal effectiveness.
For over 80 years, the iconic Myers-Briggs Type Indicator® (MBTI®) assessment has been helping millions around the world gain deeper insight into themselves and the people around them. It offers a powerful framework for understanding personality type and applying insights to better relate to others. By providing a common language to describe and appreciate personality preferences—how we prefer to direct and receive energy, absorb information, make decisions, and engage with the outside world—the MBTI assessment empowers individuals, teams, and organizations to improve communication, reduce conflict, and strengthen collaboration.
Why Choose the MBTI® Assessment?
The world’s most popular personality assessment
The MBTI® assessment—the original personality assessment—has stood the test of time for over 80 years because it works. It’s used by leading business, government, and educational organizations, including 88% of Fortune 500 companies, as well as countless L&D and OD professionals to support their people development strategies
Accelerates soft skills development
Building on self-awareness, the MBTI assessment provides a pathway for skills development through the lens of personality type. A comprehensive suite of reports and support materials enable practitioners to create personalized, scalable learning that enhances communication, collaboration, conflict management, leadership, and more.
Seamless onboarding for new users
With convenient options for certification training, a structured onboarding process, and access to a wealth of resources, new MBTI practitioners can quickly and successfully implement the MBTI assessment within their organization.
Backed by decades of research
Extensively reviewed by scientists and researchers over decades, the MBTI assessment is supported by a robust body of evidence that demonstrates its reliability, validity, and enduring relevance.
Organizations and Consultants: We Have You Covered.
Getting started with the MBTI assessment is easy. Through our certification program, you’ll learn everything needed to administer the assessment, interpret results, and apply it for people development initiatives. As a certified MBTI practitioner, you’ll also gain access to tools, resources, and support to ensure your continued success.
Practitioner Certification
Curated Resources and Continuing Education
Deepened Connections with Like-Minded Practitioners in Our Community
Top Reports
Ready for MBTI® Certification?
Advanced Users
Combining the MBTI with other assessments adds more depth to your development strategy.
MBTI + TKI
Offers more powerful insights into managing conflict productively by understanding the intersection between conflict styles and personality preferences.
MBTI + STRONG
For a more holistic approach to career exploration that considers both personal interests and personality type.
MBTI + FIRO
A versatile coaching tool that provides insights into one's personality type and interpersonal needs to enhance individual and leadership effectiveness.
Accept No Imitations: 7 Strengths of the Original MBTI® Assessment.
Built for development. Backed by research. Discover why the MBTI® assessment still leads the field.