- Subject index
Measurement Theory in Action: Case Studies and Exercises comprises twenty modules, each corresponding to entire chapters in typical measurement theory texts. The modules begin with introductory concepts and a review of statistics; progress through conceptions of content, criterion-related, and construct validation, validity generalization and test-bias; and conclude with more advanced topics such as multiple regression and item response theory (IRT). Each module is composed of an overview, case studies, exercises, Internet references, and suggested further readings. An extensive glossary of key terms is also provided for quick reference. An Instructor's Resources CD containing exercises and assignments is also available.
Module 20: Applications of Item Response Theory: Computer Adaptive Testing and Differential Item Functioning
Two major applications of item response theory (IRT) noted in Module 19 were the development of computer adaptive tests (CATs) and the examination of differential item functioning (DIF). There are numerous other less-well-known applications of IRT beyond these, such as measuring change over time, that unfortunately we do not have the space, or expertise, to expand on here. However, given the technical—and, to many, mysterious—nature of IRT, we believe it is important to discuss at least a few of the more prominent applications of this procedure. In doing so, we hope to demonstrate IRT's practical relevance and entice you to learn more ...