01 · Over time
Cohorts and social change
Over time, which divides narrow across cohorts and which widen?
Among Americans born across the twentieth century, for which issues and groups has social change continued or stalled?
How much of the change across American cohorts reflects shifts in who makes up each cohort?
In Canada and France, how do later cohorts differ from earlier ones in their confidence in democratic institutions?
Project spotlight
Whither the Progressive Revolution? The Structure of Attitudinal Change in the United States across Cohorts, 1900–2000
We compare Americans born from 1900 to 2000 on more than 100 General Social Survey questions, from civil liberties and race to abortion and gender roles. Trends across survey years understate how much cohorts differ, and change across cohorts slowed among those born after World War II before picking up again among those born from 1970 to 1990.
American attitudes are still liberalizing across cohorts. Where change has stalled or reversed, it has done so among later cohorts rather than through a backlash among older or less educated Americans, and the strongest divide has moved from race to party.
Life-cycle and social-change models · Generalized additive models · Population decomposition
Student collaborators Tom Chen · Andraya Gallant