What Is Principal Components Analysis?
What Is King’s Ecological Inference Model?
What is the Generalized Inverse of a Matrix?
How Do We (Political Scientists) Do Hypothesis Testing?
Dirichlet Process Priors As A Way to Fight Terrorism (Really!)
Distinguished Professor, Department of Government and Mathematics & Statistics
Director, Center for Data Science, Member, Center for Neuroscience and Behavior
American University, 4400 Massachusetts Avenue, NW, Washington, DC 20016