Hernan Andres Robledo Araya

Geodesic Ability in Unidimensional IRT Models: A Geometric Perspective on Parametrization Invariance

Abstract Psychometric models use latent variables to quantify psychological traits, but statistical and substantive inferences based on these variables may depend on how the latent scale is parametrized. Consequently, the same fitted model can yield qualitatively different conclu...