1. GGUM: An R Package for Fitting the Generalized Graded Unfolding Model. Issue 2 (March 2019) Authors: Tendeiro, Jorge N.; Castro-Alvarez, Sebastian Journal: Applied psychological measurement Issue: Volume 43:Issue 2(2019) Page Start: 172 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗