"I have used Gorsuch’s book "Factor Analysis" in my courses on exploratory factor analysis for the past ten years. I consider the book to be a classic in the field, and even though it was published in 1983, the book maintains its relevance. The author provides solid practical advice for researchers using factor analytic techniques that is just as important today as it was when the book was written. In addition to his practical advice, Gorsuch provides the mathematical underpinnings of factor analytic techniques so that students and applied researchers can truly understand the "inner workings" of these methods. In my view, his book is the ideal combination of technical rigor and practical advice, which results in a comprehensive text that is accessible to applied researchers." - Deborah L. Bandalos, James Madison University, USA "Factor analysis is a widely used statistical technique across many disciplines. Its use will not decrease any time soon. Yet, the knowledge of its basics, as it was developed in the 60s and 70s can only be found in classic books. A reprint of Gorsuch’s book of factor analysis is timely and it will be well received." - Albert Maydeu-Olivares, University of Barcelona, Spain „Gorsuch is a staple for anyone interested in an informative and accessible presentation of factor analysis (FA).The book presents the mathematics of FA in an applied and comprehensible style that is understandable to most readers. The material presented is still essential for current teaching, learning, and application. Anyone interested in FA will readily find this book an instructive classic by a well-respected expert." - Lisa L. Harlow, University of Rhode Island, USA
