Latest articles

Woman loading a duffel bag into a car
May 18, 2026

What Is Action Style? The Personality Dimension That Explains How You Initiate, Pace, and Complete Work

A definition of Action Style as measured by VITALS, and why it predicts how someone works better than discipline or work ethic does.

By
Dr. David Watterson
Pattern Recognition
Action Style
May 18, 2026

What Is the Watterson Personality Inventory?

The WPI is the validated psychometric instrument that anchors every VITALS profile. Here is what it measures, how it was built, and why six dimensions produce more useful insight than a personality type.

By
Dr. David Watterson
Know Yourself