The story of PI



A passion for understanding people

The Predictive Index was founded more than six decades ago, and in all that time, our mission has not changed. Our passion, inherited from our founder, is to understand people—specifically what drives their behavior at work. Our quest, like yours, is to discover how to impact that behavior, ignite their enthusiasm, and match each role to the right person.

Since 1955 we have honed the wisdom, guidance, and tools that help you inspire your employees be their most productive and engaged. Here’s our story.

Discovering psychometric testing

In 1942, twenty-six-year-old Arnold Daniels volunteered for the U.S. Army Air Corps. Shipped off to England, he was placed as a flight navigator and his team soon logged more than 30 missions—all without a single combat casualty.

When commanders noted the team’s record, they sent a psychologist in to work with Daniels—to study just what made their teamwork so successful.

This was Daniels’ first introduction to psychometric testing, and what would become a lifetime passion: solving business problems through the lens of understanding individuals.

Meeting with clients

Refining the science

After the war, he returned to Boston, where he briefly attended Harvard to study workplace psychology. In 1952 he released the first Predictive Index Assessment.

In 1955, Daniels founded PI Worldwide (now called The Predictive Index®). The Predictive Index Behavioral Assessment™ was created through a normative sample of thousands of people and has since been the subject of nearly 500 validation studies. It has received continual updates and today represents a well-established, business-relevant, and scientifically-proven measure of behavioral tendencies in the workplace.

Over six decades since, thousands of organizations have used The Predictive Index in nearly every job and industry around the world.

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The future of work

In 1998, Arnold S. Daniels passed away, but not before cementing his legacy in organizational psychology and psychometrics, and paving the way for the workplace of the future.

Over time, PI also introduced the PI Cognitive Assessment™ —which provides a better understanding of each person’s learning capacity and the Job Assessment™ — which defines jobs via individual attributes and needs. Together with the PI Behavioral Assessment, this trio of tools has fulfilled Daniels’ vision— identifying what uniquely motivates and drives each of us, and setting us up for the ultimate success in our work.

PI maintains a Science Advisory Board staffed with university professors, I/O psychologists, and other subject matter experts in psychometrics. The board regularly reviews and evaluates our science and methodology so we can continue to build on the well-established foundation and history that we have, as well as our future.

More than 25+ million assessments have been conducted since Arnold S. Daniels delivered the first Behavioral Assessment in the 1950s, and though the assessments have been refined over time, our mission has never changed.

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