Large representative surveys are using mixed methods to an ever-increasing degree. Biomarkers, register data, and experiments, for example, provide different types of data that can be linked with survey data. The use of qualitative interviewing of participants in longitudinal surveys is still...

The aim of this working paper is to review the possible applications, potentials and methodological challenges of qualitative longitudinal research (QLR) in the context of migration studies. It is based on a literature review of both theoretical and empirical papers focused on QLR as such, or...