Introduction to many-facet Rasch measurement : analyzing and evaluating rater-mediated assessments
著者
書誌事項
Introduction to many-facet Rasch measurement : analyzing and evaluating rater-mediated assessments
（Language testing and evaluation, v. 22）
Peter Lang, c2011
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注記
Bibliography: p. [131]-150
Includes indexes
内容説明・目次
内容説明
Human ratings are subject to various forms of error and bias. Since the early days of performance assessment, this problem has been sizeable and persistent. For example, expert raters evaluating the quality of an essay, an oral communication, or a work sample, often come up with different ratings for the very same performance. In cases like this, assessment outcomes largely depend upon which raters happen to provide the rating, posing a threat to the validity and fairness of the assessment. This book provides an introduction to a psychometric approach that establishes a coherent framework for drawing reliable, valid, and fair inferences from rater-mediated assessments, thus answering the problem of inevitably fallible human ratings: many-facet Rasch measurement (MFRM). Throughout the book, sample data taken from a writing performance assessment are used to illustrate key concepts, theoretical foundations, and analytic procedures, stimulating the readers to adopt the MFRM approach in their current or future professional context.
目次
Contents: Conceptual-psychometric framework for rater-mediated performance assessments - Foundations of many-facet Rasch measurement - Measurement of rater severity/leniency - Correcting examinee proficiency estimates for rater severity differences - Examining rater consistency and rating scale effectiveness - Increasing validity and fairness of performance assessments.
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