FifthTheory helps organizations to maximize performance through our peak performance solutions.
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Drive organic growth and retention by engaging and developing your key performers. Our survey tools and 360 instruments provide key insights to support employee development and leadership effectiveness.
Learn more about the Campbell Multi-Rater 360 HERE
Continuing the Legacy: Today, these classic assessments — including the TTS, TMA, CLI-360 Multirater, and CLI-90 Plus — are exclusively published and distributed by FifthTheory®, LLC. Led by John W. Jones, Ph.D., and both the Campbell International Leadership Institute and the AI Personality Research Lab, FifthTheory continues to update and validate these instruments for the AI era, ensuring they remain reliable, ethical, and globally relevant.
Together, they comprise the FifthTheory® Classic Assessments Suite — uniting timeless scientific rigor with 21st-century innovation in the measurement of temperament, ability, and leadership potential.
Learn more about FifthTheory Classic Assessments HERE
Empower Leaders with Psychological Flexibility and ACT-Based Coaching
Become a Certified Campbell ACTivate Leadership Coach™ and master the use of Acceptance and Commitment Therapy (ACT) for developing resilient, adaptable, and emotionally intelligent leaders. This certification aligns with the groundbreaking CLI-90 Plus Assessment, offering a dynamic, AI-enhanced way to assess and develop leadership potential.
Why Choose CALC?
Course Includes:
Enroll now for a 50% discount: Only $247.50 (Reg. $495) Limited Spots Available! Questions? Contact us at info@fifththeory.com
Next-Generation Loss Prevention Starts Here
Join the LP revolution with FifthTheory’s PI-LPP Certification. Developed by Dr. John W. Jones, this program integrates psychology into loss prevention, asset protection, and risk management. It’s built for future-ready LP/AP professionals who want to elevate their strategy in a complex, post-pandemic business world.
Why PI-LPP?
Special Offer: 50% Off
Use discount code FT50 and pay half the tuition. Secure your role as a psychology-informed leader in LP. To register, contact: Jack Jones
Learn more about our New Test Mastery Tools
FifthTheory’s Test Mastery Corporate Sponsorship Program is a groundbreaking program to help high-stakes test-taking employees become aware of and develop the mindset required to master high stakes exams they may encounter during their lifelong career education journey.
Download BrochureSpeak with one of our organizational development coaches.
Large organizations have multiple needs when it comes to assessing the potential of their people. Our experts will actively listen, uncover the nuances of your company’s requirements, and tailor a solution for your organization.
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FifthTheory has been certified as a minority owned business by the Chicago Minority Supplier Development Council, one of the 24 affiliates of the National Minority Supplier Development Council. You can learn more about the National Minority Supplier Development Council and the Chicago Minorty Supplier Development Council here
Read our recent statement on racial justice