Using Focus Groups for Process Tracing: Leveraging Group Discussions for Causal Inference

In the social sciences, most process tracing evidence is gathered through individual or atomized sources. However, there are some cases in which individualized data collection methods are not enough to capture collective social processes. We propose using focus groups for process tracing (FGFPT) to gather and analyze qualitative evidence about causal processes and mechanisms by leveraging interaction and discussions. We present three key benefits of using FGFPT: instant fact-checking, obtaining mechanistic evidence through the interactive process, and enhancing participants’ collective agency. Additionally, we propose general guidelines for designing and implementing focus groups with the aim of process tracing: specifying observable implications, forming the focus group, question design, and training the moderator. Focus groups can be the most adequate data collection method to support and enhance process tracing exercises for collective phenomena.