Protzko is an Assistant Professor at Central Connecticut State University, Director of the ASSUMPTION lab, and Associate Director of the Psychological Science Accelerator. He studies underlying assumptions of people, scientists, and society. This work is primarily in metascience, social psychology, and cognitive psychology.
He has his Ph. D.in psychology focusing on the raising and development of intelligence. His main research interests revolve around causality and causal assumptions. This work focuses on the nature of intelligence, the belief in free will, and metascience. As Director of the Assumption Lab, he leads teams of researchers probing people and society's assumptions. He continues his work with the META Lab on the belief in Free Will and metascience.