Mediating practices in theory and action: apprehending and creating interdisciplinary data in biosocial birth cohort research

Biosocial birth cohort studies are uniquely positioned to be novel sites of interdisciplinary research. Their enduring commitment to specific field sites and populations, recurring grant renewal cycles, ability to ask prospective questions while drawing on long-standing data repositories, and more ensure ongoing collaboration and allow research to remain responsive to the evolving needs and timelines of multiple disciplines. However, it is widely recognised that interdisciplinary work is often easier imagined than achieved, and additional conditions are required to facilitate it beyond assembling teams of varied experts. This piece offers <i>mediating practices</i> as a concept that refers to the practical, multi-directional, and relational processes that attempt to resolve tensions that interdisciplinary teams often confront. Mediating practices bridge gaps among different disciplines' data and methods, often relying on pragmatic strategies, like re-designing data infrastructures or planning action items after a meeting, to do so. As such, mediating practices are crucial to conducting successful interdisciplinary research. Further, the concept of mediating practices foregrounds the actions of junior team members who often perform these practices, highlighting the need to foster epistemic humility and models of horizontal knowledge production in interdisciplinary teams. Here, the authors discuss their experiences and insights as members of interdisciplinary projects and outline how mediating practices emerged in these projects and enabled interdisciplinary success.