Carstensen, Claus H.Claus H.Carstensen0000-0002-5736-4695Davier, Matthias vonMatthias vonDavierXu, XueliXueliXu2019-09-192014-09-242009https://fis.uni-bamberg.de/handle/uniba/19514deuUsing the General Diagnostic Model to Measure Learning and Change in a longitudinal Large-Scale Assessmentworkingpaper10.1002/j.2333-8504.2009.tb02185.x