PTAM 2020-1 | Establishing comparability and measurement invariance in large-scale assessments, part I
Establishing comparability and measurement invariance in large-scale assessments, part I Lale Khorramdel, Artur Pokropek & Peter van Rijn (Eds.) CONTENT EditorialLale Khorramdel, Artur Pokropek & Peter van Rijn Full article .pdf (Diamond Open Access) Using a multilevel random item Rasch model to examine item difficulty variance between random groupsJohannes Hartig,...