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Primary Submission Category: Public Health Communication and Trust
Evidence Without Authority: Demonstration Centers and the Historical Roots of Trust in Population Health Science
Authors: Quinn Valier,
Presenting Author: Quinn Valier*
The difficulty population health science faces in establishing trustworthy relationships and durable influence with many communities is routinely framed as a problem of communication or recent political polarization. This paper argues that it has older and more structural roots — ones that historical analysis can make visible in ways that neither policy reform nor improved engagement practice alone can address.
Drawing on the history of public health and medical demonstration centers in the twentieth century United States, the paper traces how American public health and medicine learned to learn from communities. Demonstration centers were disproportionately sited in marginalized and underserved communities — in part because poverty and structural deprivation made causal relationships between social conditions and health outcomes unusually legible. The evidence they generated was documented and sometimes acknowledged, but rarely allowed to reconfigure broader evidentiary hierarchies or policy commitments. That asymmetry was constitutive of how the demonstration model worked, and the institutional ways of knowing that population health science inherited carried it forward. The early twenty-first century NIH Clinical and Translational Science Awards program formalized community engagement as a structural requirement while leaving relatively undisturbed the hierarchies that determined which knowledge was fit to travel.
Building trust and influence therefore requires asking not only how to engage communities better, but why the evidence those communities have long generated has so rarely been allowed to change what the field takes for granted.