The Changing of America's Middle Class. The present study will consider how material culture and the standard of living has changed for middle-class Americans over the course of the twentieth century. Such changes were made possible by economic, technological and cultural factors that will be discussed here. The paper will conclude with an assessment of the consequences of such change. 8 pgs. 10 f/c. 3b. Pages: 8 Bibliography: 3 source(s) listed Filename: 2793 America Middle Class.doc Price: 71.60