Introduction to many-facet Rasch measurement: analyzing and evaluating rater-mediated assessments - 22 (Second edition.)

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.