Empiricist

An Empiricist believes the world before it believes the idea. You trust what you can see, touch, and test, and you would rather run the experiment than win the argument. Joseph Royce formalized Empiricism as a personality dimension in his Psycho-Epistemological Profile, calling these orientations the primary determinants of how people build a worldview.

This is a stance about how you verify, not just how you gather information. Epstein's Cognitive-Experiential Self-Theory describes the experiential system that learns from concrete contact with reality. For the Empiricist, evidence settles it: if the theory and the result disagree, the result wins.