Craig S. Wells is a professor in the Research, Educational Measurement, and Psychometrics Program at the University of Massachusetts Amherst, where he teaches courses on statistics and psychometrics. He co-edited Educational Measurement: From Foundations to Future (2016) and was President of the Northeastern Educational Research Association in 2017.

'Measurement invariance has become a key concept in social sciences. Craig S. Well's book offers a comprehensive overview of MI approaches as well as practical examples, which will allow the reader to carry out measurement invariance studies in different contexts.' Paula Elosua Oliden, Professor of Psychometrics, University of the Basque Country, Spain

• 1. Introduction; 2. Observed Score Methods; 3. Item Response Theory; 4. Methods Based on Item Response Theory; 5. Confirmatory Factor Analysis; 6. Methods Based on Confirmatory Factor Analysis; Appendix; Author Index; Subject Index.