Trait-based personality theories, such as those defined by Raymond Cattell define personality as the traits that predict a person's behavior. On the other hand, more behaviorally based approaches define personality through learning and habits.
This was one year after the first department of sociology was established at the University of Chicago. In 1919, a separate School of Sociology was created, and in 1930, the present Department of Sociology came into being. Following World War II, the department, along with the university as a whole, expanded rapidly. Before World War II the department had a masterâs program from which a handful of students had graduated.
The first modern social theories (known as classical theories) that begin to resemble the analytic social theory of today developed almost simultaneously with the birth of the science of sociology. Auguste Comte (1798â1857), known as the father of sociology and regarded by some as the first philosopher of science, laid the groundwork for positivism â as well as structural functionalism and social evolutionism.