Analyzing and Evaluating Rater-Mediated Assessments- 2 nd Revised and Updated Edition
About the author
Thomas Eckes is Head of the Psychometrics and Research Methodology Department, TestDaF Institute, University of Bochum, Germany. His research interests include language testing, multivariate data analysis, large-scale assessments, psychometric modeling of language competencies, and web-based testing.
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