Elke Esser

This bestseller, with over 80,000 copies sold, offers clear and detailed explanations of the methods of empirical social research. It not only presents individual procedures but also explains the theoretical foundations and practical problems encountered during implementation. The critical presentation of even the more recent developments in the methods and techniques of empirical social research goes beyond other textbooks. This is also why the book is the most frequently cited textbook on the subject in the German language. For the thoroughly updated 12th edition, the volume has been expanded to include sections on applications of the Rasch model, such as the PISA studies, web surveys, effect size measures, literature searches, and replication studies.