During the three decades from 1945 to 1975, the Catholic Church in West Germany employed a broad range of methods from empirical social research. Statistics, opinion polling, and organizational sociology, as well as psychoanalysis and other approaches from the 'psy sciences, ' were debated and introduced in pastoral care. In adopting these methods for their own work, bishops, parish clergy, and pastoral sociologists tried to open the church up to modernity in a rapidly changing society. In the process, they contributed to the reform agenda of the Second Vatican Council (1962-1965). Through its analysis of the intersections between organized religion and applied social sciences, this book offers insights into the trajectory of the Catholic Church in postwar Germany