David A. Siegel, Duke University
4240 Public Affairs Bldg“A Theoretically-driven Approach to Measurement” Abstract: Item Response Theory (IRT) models are widely used in political science as a dimensional-reduction technique: they reduce variation in multiple variables to continuous variation along one or more latent dimensions. One-dimensional IRT models have a conceptual advantage in doing so in that the latent dimension they identify has intrinsic […]