Invariant Measurement: Using Rasch Models in the Social, Behavioral, and Health Sciences
 "Invariant Measurement fills a much needed void in the library of Rasch measurement books. This book is a favorite among Rasch measurement enthusiasts for many reasons, not the least of which is the authors’ use of practical language coupled with a consistent tone. Invariant Measurement, however, is sure to be another favorite in the Rasch measurement anthology as its crisp, clear writing and practical approach will be easily digestible for both measurement experts and curious students alike."- Kenneth D. Royal, University of North Carolina at Chapel Hill"Professor Engelhard Jr. has long been one of the strongest and most respected and thoughtful measurement specialists in our field. His book on measurement invariance in the social sciences brings great clarity for practitioners to what many have called the cornerstone of item response theory." -Ronald K. Hambleton, Distinguished University Professor, University of Massachusetts - Amherst, USA"Measurement is fundamental to any scientific research but unless the measures are valid and dependable, the research will be misleading and futile. This book is a must-read for every serious researcher who needs to construct quality measures. It gives a thorough treatment on both the concepts and the methodology of Rasch measurement." -Magdalena M. C. Mok, The Hong Kong Institute of Education, China"George Engelhard is one of the world’s premier theorists on invariant measurement. … This will be a useful textbook for a graduate course on item response theory as well as a good desk reference for many psychometric researchers and practitioners." -Richard M. Luecht, University of North Carolina – Greensboro, USA"I found each chapter easy to read and follow. ... [It] includes more authentic examples and supplements which ... make it (in my opinion) more accessible for graduate students."–Jennifer Randall, University of Massachusetts – Amherst, USA"The conversational tone makes the book … more engaging – as if one were having a conversation with the author. ... I believe readers (particularly graduate students) will find the text engaging." -RJ DeAyala, University of Nebraska- Lincoln, USA"The project makes a significant contribution to the field of measurement. I know of no other resource that has as their focus the basic concepts and principles of invariant measurement. …I …see this book as useful in introduction to Rasch measurement courses." –Carol Myford, University of Illinois at Chicago, USA