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Why DiSC Works: Understand the Science

We're often asked how accurate and legitimate the Everything DiSC assessment is. In short, our answer is this: Each Everything DiSC solution is based on a scientifically valid and reliable assessment to ensure a high-quality, transformational learning experience - everytime. 

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DiSC Research

Psychological instruments are used to measure abstract qualities that we can’t touch or see. These are characteristics like intelligence, extroversion, or honesty. So how do we know whether such tools are providing accurate information or just generating haphazard feedback that sounds believable?


Simply put, if an instrument is useful and accurate, it should meet a variety of different standards that have been established by the scientific community. Validation is the process through which researchers assess the quality of a psychological instrument by testing the tool against these different standards.

Validation asks two fundamental questions:
How reliable is the tool?

That is, researchers ask if an instrument measures consistently and dependably. If the results contain a lot of random variation, it is deemed less reliable.

How valid is the tool?

That is, researchers ask if an instrument measures accurately. The more a tool measures what it proposes to measure, the more valid the tool is.

With nearly 50 years of assessment data and over 10 million individuals assessed, you can feel confident that our assessment meets the highest levels of validity and reliability.

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Solutions That Meet Your Unique Needs

People work together in a variety of contexts. No matter your specific need, Everything DiSC is designed to help everyone in your organization work better together—from individual contributors to C-suite executives.

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Build Better Relationships

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Inspire Great Managers

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Agile EQ*

Increase Workforce Agility

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Productive Conflict

Harness the Power of Conflict

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Work of Leaders

Lead with Impact

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Cultivate Top Sales Talent

*Available on the Catalyst™ platform

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About DiSC

What is the DiSC Model?

Why DiSC Works

How DiSC Works

Do's and Don'ts

Everything DiSC Solutions

Build Better Relationships | Workplace

Inspire Greater Managers | Management

Increase Workforce Agility | Agile EQ

Harness the Power of Conflict | Productive Conflict

Lead with Impact | The Work of Leaders

Cultivate Top Sales Talent | Sales


Everything DiSC Your Colleagues & Your Groups

The Everything DiSC Catalyst Platform

Everything DiSC Experiences with Symphony 100

About Symphony 100 Signature Packages

Rhythm by Symphony 100 with Workplace

Melody by Symphony 100 with Workplace, Agile EQ

Harmony by Symphony 100 with Workplace, Agile EQWork of Leaders

Order Individual Assessments & Reports

Become a Certified Practitioner

Purchase Facilitation Kits

About Symphony 100

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