About the Blind Spot Assessment

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The Blind Spot Assessment™

The Blind Spot Assessment (BSA) is an ASI-validated instrument designed to identify one’s natural communication styles, enhancing self-awareness, emotional intelligence, and team dynamics. It helps organizations improve hiring, leadership, and culture by identifying natural talents and blind spots.  

The questionnaire takes less than 3 minutes and provides a 4-page Summary Report for key insights or a 25-page Comprehensive Report for deeper analysis. More than just an assessment, the BSA includes a structured implementation framework and supplemental guides, such as the 14-dimension hiring report with probing interview questions and a coaching debrief guide. Organizations, professional coaches and trainers can access unlimited assessments with a flat-rate subscription for scalable impact.   

Simple. Insightful. Transformational.

Kevin is a globally recognized speaker, trainer, and bestselling author who has delivered high-impact keynotes to leaders and organizations around the world.

Book a Demo

Meet with a representative to learn how the Blind Spot Assessment works and preview sample reports.

Evaluate Feedback

Participants take the BSA and you receive instant reports to evaluate clarity, depth of insights, and coaching value.

Join the Community

Subscribe to access the Blind Spot Assessment platform, send unlimited assessments during your trial.

What It Measures

The Blind Spot Assessment evaluates core behavioral patterns that influence how people communicate, lead, collaborate, and perform inside organizations. These insights help HR leaders, trainers, and coaches make smarter decisions in hiring, leadership development, and team alignment.

Pace

Reveals how quickly an employee processes information, responds to urgency, and adapts to change—critical for matching people to the right roles and reducing execution bottlenecks.

Focus

Shows whether someone leans toward task completion or relationship-building, helping leaders balance priorities and improve collaboration across diverse working styles.

Primary Style

Identifies an individual’s instinctive behavioral approach—how they communicate, solve problems, and lead—providing a shared language that strengthens teamwork and alignment.

Strength Tendencies

Highlights the natural talents each person brings to the workplace, enabling managers to assign work that maximizes productivity, engagement, and confidence.

Blind Spot Tendencies

Uncovers where strong tendencies can become overplayed or misinterpreted, helping teams reduce avoidable conflict, miscommunication, and performance dips.

Style Interaction Patterns

Explains how one person’s style is experienced by others, giving teams a practical roadmap for improving communication, building trust, and creating a healthier culture.

Become a Certified Blind Spot Assessment Practitioner

Exclusive Variants, Training Support, and Derivative Works License for Subscribers

For our subscribers, the Blind Spot Assessment experience goes beyond the basics. We offer an expanded suite of Blind Spot Assessments, specifically tailored for diverse applications like Leadership, Sales, and Team Building. These specialized versions are meticulously designed to tackle the distinct challenges and opportunities in each area, providing focused and effective insights.

Enhanced with Pro and Enterprise-Level Benefits

Pro and Enterprise subscribers gain exclusive access to our extensive library of training resources. This collection includes a range of PDFs and PowerPoint slides, crafted to augment the impact of Blind Spot Assessments in various settings. These materials are not only comprehensive but also customizable, allowing subscribers to white label and create derivative works tailored to their specific needs and branding.

Our Commitment to Empowering Professionals

We are dedicated to making complex human behavior assessments both accessible and functional. Our aim is to ensure that the insights from our assessments are effectively utilized to bolster leadership, teamwork, and interpersonal relationships. By providing these additional resources, we empower professionals to not only understand but also to apply these insights practically in their organizations or client engagements. Our commitment to simplicity and relevance stands at the forefront, simplifying intricate concepts for everyday application in your professional and personal life.

ASI Validated and Certified

The Blind Spot Assessment is Certified for Excellence by the Assessment Standards Institute (ASI), ensuring it meets the highest standards of scientific and ethical integrity.  

ASI facilitates the application of the American Psychological Association (APA) standards for educational and psychological testing, considered the gold standard for reliability, validity, and fairness. This certification confirms that our assessment is accurate, compliant with psychological best practices, and continually evaluated to align with evolving standards. 

 The APA, a leading organization with over 118,000 members, collaborates with the National Council on Measurement in Education and the American Educational Research Association to publish the Standards for Educational and Psychological Testing. These guidelines have set the benchmark for testing quality since 1966, ensuring ethical and effective practices worldwide. 

 With this certification, you can trust that the Blind Spot Assessment upholds these rigorous standards, offering reliable, actionable insights for leadership and personal development.

Understanding DISC and the Blind Spot Assessment™

Welcome! If you’re exploring what DISC is and how the Blind Spot Assessment enhances this powerful framework, you’ve come to the right place. DISC is a behavioral assessment tool grounded in the theory developed by psychologist William Moulton Marston in the 1920s. It identifies four primary personality traits: Dominance (D), Influence (I), Steadiness (S), and Conscientiousness (C). These traits are pivotal in understanding how we behave in various situations, including our professional life, personal relationships, and team dynamics.

Introducing the Blind Spot Assessment

The Blind Spot Assessment builds on the traditional DISC framework by not only measuring the four primary personality styles but also recognizing four blended styles, offering a more nuanced understanding of personality. This assessment simplifies the complexity of human behavior into eight distinct styles, each with a descriptive name that encapsulates its essence. These are:

Competitor (D): Focused on results and assertiveness.
Energizer (DI/ID): Dynamic and persuasive.
Motivator (I): Inspirational and communicative.
Connector (IS/SI): Empathetic and cooperative.
Peacemaker (S): Dependable and thoughtful.
Stabilizer (SC/CS): Methodical and analytical.
Analyzer (C): Detail-oriented and precise.
Controller (CD/DC): Strategic and challenging.

Benefits of the Blind Spot Assessment

The Blind Spot Assessment offers numerous advantages, including enhanced self-awareness, improved communication skills, better team dynamics, effective conflict resolution strategies, and targeted personal development. It provides a comprehensive understanding of your own style and those of the people around you, fostering more meaningful interactions and relationships.

Discover the BSA Editions

To give you a taste of the insights the Blind Spot Assessment can offer, we invite you to try our “Lite Edition” for free. This version gives you a quick glimpse into your primary style. For those looking for deeper insights, our “Expanded Edition” dives further into your personality traits, offering more detailed reports. Additionally, we offer specialized editions tailored to various professional and personal focuses, such as sales, real estate, hiring, and more. Each edition is designed to help you leverage your unique strengths in specific contexts.

History of DISC and the Evolution to the Blind Spot Assessment™

The Beginnings of DISC

The story of the DISC assessment begins with William Moulton Marston, a Harvard psychologist, who introduced the world to the DISC theory in 1928. His pioneering concept, detailed in "Emotions of Normal People," categorized human behavior into four personality traits: Dominance, Influence, Steadiness, and Compliance. Although Marston laid the theoretical groundwork, he did not create an assessment tool.

From Theory to Practical Application

In the mid-20th century, industrial psychologist Walter Vernon Clarke developed the first DISC assessment tool, the Activity Vector Analysis. This development was a significant leap from theory to practical application. The DISC assessment gained further traction in the 1970s under Dr. John Geier at the University of Minnesota, who created the Personal Profile System, widely used in corporate and personal development.

DISC in the Modern World

The DISC assessment has been a staple in understanding behavioral styles and personality profiles in various settings, including team building, leadership development, and communication training.

The Advent of the Blind Spot Assessment

In 2016, Human Behavior Consultant Kevin McCarthy, CSP, recognized the need to simplify and expedite the DISC assessment process. He observed that despite DISC's popularity, its complexity often hindered people from integrating the insights into their leadership or work life. McCarthy envisioned a more streamlined, user-friendly, and accurate assessment. Thus, the Blind Spot Assessment was born.

The Impact of the Blind Spot Assessment

Since its debut, the Blind Spot Assessment has had a remarkable impact. Tens of thousands of individuals and organizational leaders have embraced this tool for personal insights and in corporate training and team-building initiatives. The assessment's appeal has crossed continents, with coaches and trainers in North America, Germany, and Australia incorporating it into their practices.  The Blind Spot Assessment stands as a testament to the evolving landscape of human behavior assessment. It builds on the rich legacy of the DISC theory while making significant strides in accessibility, speed, and practicality. This tool not only marks a new chapter in the history of behavioral assessment but also continues to shape the future of personal and professional development worldwide.

Join the Evolution of Insightful Assessment

You’ve explored the rich history of DISC and witnessed its transformative journey to the Blind Spot Assessment. You’ve seen how we’ve tailored this powerful tool to meet diverse needs, from leadership to sales, and how we support you with extensive resources to maximize its impact. Now, it’s time to take the next step. Subscribe today and be part of this revolutionary journey. Harness the full potential of the Blind Spot Assessment in your organization or practice. Benefit from our comprehensive suite of resources, tailor-made to enhance your experience and outcomes. Embrace the simplicity, the relevance, and the transformative power of our assessments. Join a community of forward-thinking professionals who are redefining success in leadership, teamwork, and personal growth.

Subscribe now, and turn insights into action.

See the
Insights You’ll Gain

Your personalized report highlights key behavioral tendencies, leadership strengths, and specific blind spots affecting your relationships and results. It also provides practical strategies you can apply immediately.   For more than 25 years, he has helped leaders and organizations uncover their blind spots, strengthen self-awareness, and elevate performance.

What Leaders Are Saying

Discover how our assessments, development programs, and speaking events have helped leaders gain clarity and unlock new potential.

Sarah Mitchell

HR Director, Global Tech Firm

“The Blind Spot Assessment has revolutionized our approach to leadership development at StellarTech. We’ve identified hidden behavioral patterns that were impacting team synergy and overall performance. The insights provided were not only clear but also actionable, leading to immediate improvements. It’s now a cornerstone of our strategy.”

James Carter

Executive Coach & Trainer

“The BSA is a game-changer for leadership development. It’s like holding up a mirror, enabling leaders to see themselves as others do.”

Emily Rodriguez

VP of People & Culture

“Dr. Anya Sharma’s presentation was a revelation. Our team left equipped with practical tools they could immediately implement to foster better team dynamics.”

Michael Thompson

Sales Manager

“The Blind Spot Assessment was a game-changer for our sales division at Quantum Leap Solutions. It pinpointed areas of improvement in our team’s active listening, relationship-building, and problem-solving skills. The targeted insights allowed us to refine our sales strategies and foster a more collaborative environment. Within a quarter, we saw a significant boost in both sales figures and employee morale.”