Published online by Cambridge University Press: 09 October 2020
Qualitative longitudinal research can make a distinctive contribution to policy discussions and to the assessment of outcomes. This article draws on research with lone-parent families over fifteen years to illustrate how change and continuity can look different over shorter and longer time periods, to discuss presenting longitudinal qualitative evidence through the selection of case studies, and to explore some of the challenges of engaging in policy debates with qualitative data.