A General Model for IRT Scale Linking and Scale Transformations

Abstract

The goal of this book is to emphasize the formal statistical features of the practice of equating, linking, and scaling. This book encourages the view and discusses the quality of the equating results from the statistical perspective (new models, robustness, fit, testing hypotheses, statistical monitoring) as opposed to placing the focus on the policy and the implications, which although very important, represent a different side of the equating practice. This book contributes to establishing 'equating' as a theoretical field, a view that has not been offered often before. The tradition in the.