Synthesis: Combining Methods for the Analysis of Vulnerability Processes Across the Life Course

Abstract

The analysis of vulnerability processes throughout life implies several methodological difficulties. In this review chapter, we look back on more than 10 years of methodological innovations developed within the NCCR LIVES. Concerning data collection issues, although the prospective survey remains the gold standard for obtaining longitudinal data, retrospective data collected through specially adapted tools such as life calendars allow for a rapid completion of data sequences. Moreover, alternative sampling schemes based on network methods can reach individuals not likely to be included in traditional probabilistic samples. This also requires the development and use of more global data collection modes, combining qualitative and quantitative data, and allowing participants to respond in the manner best suited to their specific situations and capacities. What is true regarding data collection is also a requirement for data analysis: it is often essential to combine the strengths of different analytical tools such as traditional longitudinal analyses and survival analysis, the aim being to study the occurrence of specific events without losing sight of an individual’s prior trajectories over their life course. Finally, the chapter also addresses the issues of multichannel analyses and missing data.