This book illustrates ways to model and quantify agreement or convergence among multiple observations made by multiple raters, across time, or multiple situations. "This book would be extremely useful as a reference for researchers and academics in many fields including statistics, psychology, medicine, business, and education....Additionally, this book would be useful for a graduate level methods or assessment class in many disciplines including psychology and education....there are no other books that approach rater agreement as comprehensively as this book." - Keith Niedermeier, Ph.D., Pennsylvania State University, USA "...rater agreement is a critical issue across the behavioral and social sciences and thus a book of this nature would be very broadly utilized....The book has a number of strengths including the outstanding reputation of the author....[and] the depth of scholarship. It is comprehensive in its coverage of the manifest variable approaches." - Todd Little, Ph.D., University of Kansas, USA