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Introduction to Many-Facet Rasch Measurement

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Since the early days of performance assessment, human ratings have been subject to various forms of error and bias. Expert raters... Weiterlesen
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Beschreibung

Since the early days of performance assessment, human ratings have been subject to various forms of error and bias. Expert raters often come up with different ratings for the very same performance and it seems that assessment outcomes largely depend upon which raters happen to assign the rating. This book provides an introduction to many-facet Rasch measurement (MFRM), a psychometric approach that establishes a coherent framework for drawing reliable, valid, and fair inferences from rater-mediated assessments, thus answering the problem of fallible human ratings. Revised and updated throughout, the Second Edition includes a stronger focus on the Facets computer program, emphasizing the pivotal role that MFRM plays for validating the interpretations and uses of assessment outcomes.



Autorentext

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.



Inhalt

Contents: Conceptual-psychometric framework for rater-mediated assessments - Principles of many-facet Rasch measurement - Measurement of rater severity/leniency - Correcting examinee proficiency measures for rater severity differences - Examining rater consistency and rating scale effectiveness - Increasing validity and fairness of performance assessments.

Produktinformationen

Titel: Introduction to Many-Facet Rasch Measurement
Untertitel: Analyzing and Evaluating Rater-Mediated Assessments. 2nd Revised and Updated Edition
Autor:
EAN: 9783653978124
ISBN: 978-3-653-97812-4
Format: E-Book (epub)
Hersteller: Peter Lang GmbH, Internationaler Verlag der Wissenschaften
Herausgeber: Peter Lang GmbH, Internationaler Verlag der Wissen
Genre: Sprach- und Literaturwissenschaft
Veröffentlichung: 28.08.2015
Digitaler Kopierschutz: Adobe-DRM
Jahr: 2015