Three Generation Studies: Methodological Challenges and Promise

Abstract

Studies examining various life-course themes are increasingly employing longitudinal studies that contain three adjacent generations from the same families. These studies enable the investigation of continuity and discontinuity in the behavior of interest across the generations, as well as mediating and moderating influences that help explain how the lives of parents and children (and grandchildren) become linked over time. Although these studies are used more frequently now, there is still a lack of agreement about what constitutes a “three generation study.” The present chapter proposes a set of core design features that, in combination, both define three generation studies and distinguish them from traditional longitudinal designs. It then identifies several major methodological challenges that confront three generation studies and discusses potential solutions to them. In keeping with one of the central themes of the Handbook, throughout the chapter I offer suggestions for future research. Finally, the chapter addresses the strengths and weaknesses of this approach and the potential yield that three generation studies offer to the investigation of life-course themes.