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Disentangling Interviewer and Area Effects in Large-Scale Educational Assessments using Cross-Classified Multilevel Item Response Models

Author Note Theresa Rohm, Leibniz Institute for Educational Trajectories and University of Bamberg, Germany; Claus H. Carstensen, University of Bamberg, Germany; Luise Fischer, Leibniz Institute for Educational Trajectories and University of Bamberg, Germany; Timo Gnambs, Leibniz Institute for Educational Trajectories, Germany, and Johannes Kepler University Linz, Austria. This paper uses data from the National Educational Panel Study (NEPS): Starting Cohort 6 – Adults, doi:10.5157/NEPS:SC6:3.0.1. From 2008 to 2013, NEPS data were collected as part of the Framework Programme for the Promotion of Empirical Educational Research funded by the German Federal Ministry of Education and Research (BMBF). As of 2014, the NEPS survey is carried out by the Leibniz Institute for Educational Trajectories (LIfBi) at the University of Bamberg in cooperation with a nationwide network. Correspondence concerning this article should be addressed to Theresa Rohm, Leibniz Institute for Educational Trajectories, Wilhelmsplatz 3, 96047 Bamberg, Germany, Email: theresa.rohm@lifbi.de