The Chicago School sociology refers to a group of sociologists based at the University of Chicago in the early 20th century. This school of thought emphasized the study of urban environments and social interactions, focusing on how individuals and communities adapt to their surroundings. Researchers used qualitative methods, such as ethnography, to understand social phenomena in cities. Key figures in the Chicago School include Robert E. Park and Ernest W. Burgess, who developed concepts like the "social ecology" of cities. They explored issues such as immigration, crime, and social disorganization, contributing significantly to the field of sociology and urban studies.