I am currently a postdoctoral scholar at Stanford University, working under Ellen Markman. I earned my PhD in Cognitive Psychology at the University of California, Los Angeles under advisor Keith Holyoak. I was born and raised in Wauwatosa, WI and previously educated in the desert at Arizona State University. I love coffee and beer and have recently become an amatuer coffee roaster and home brewer (emphasis on amatuer). I also dabble in photography.
Pritschet, L., Powell, D., & Horne, Z. (2016). Marginally significant effects as evidence for hypotheses: Changing attitudes over four decades. Psychological Science. PDF
Powell, D., Merrick, M. A., Lu, H., & Holyoak, K. J. (2016). Causal competition based on generic priors. Cognitive Psychology. PDF
Horne, Z., Powell, D., Hummel, J. E., & Holyoak, K. J. (2015). Countering anti-vaccination attitudes. Proceedings of the National Academy of Science. PDF
Using experimental and computational methods, my research examines higher-order cognition with a focus on systems of belief and belief revision. I also study moral reasoning, causal learning, and research practices. Data and supplemental materials for some of my projects are available on Open Science Framework.