Pub. date: 2008 | Online Pub. Date: May 28, 2008 | DOI: 10.4135/9781412963930 | Print ISBN: 9781412941655 | Online ISBN: 9781412963930| Publisher:SAGE Publications, Inc.About this encyclopedia
Stratification is the process of dividing members of a society into strata , or social groups; when this is done by age, it is termed age stratification. The various age strata form age cohorts that encompass those born within a particular time period. One of the largest and most well-known age cohorts in contemporary society is the baby boomers, those born after World War II between 1946 and 1964. These cohorts age together across the life course and share common history, experiences, norms, and role transitions while changing from “young” to “middle-aged” and “old” statuses. In addition ...