Repeated surveys — a technique for asking the same questions to different samples of people — allows researchers the opportunity to analyze changes in society as a whole. This book begins with a discussion of the classic issue of how to separate cohort, period, and age effects. It then covers methods for modeling aggregate trends; two methods for estimating cohort replacement's contribution to aggregate trends, a decomposition model for clarifying how microchange contributes to aggregate change, and simple models that are useful for the assessment of changing individual-level effects.
Detecting Change in Individual-Level Relationships
This book is about the analysis of social change. To this point, I have focused on aggregate change, but the term “social change” sometimes refers to changing relationships at the individual level. This chapter describes how simple regression models can be used ...