What is the best way to evaluate whether an intervention works? Orthodox ‘evidence-based’ evaluation methods review certain kinds of studies (especially randomised trials) but exclude other relevant evidence (such as mechanistic studies and views of stakeholders).

This project will apply an emerging philosophical theory of causal enquiry, Evidential Pluralism, to provide systematic foundations for a broader approach to evidence review—one that includes a diverse range of evidence from across disciplines. This approach promises better informed and more inclusive evaluations. A new review of the effectiveness of face-mask mandates will help to test the approach.

This project is supported by the new UKRI interdisciplinary scheme and runs for 2 years from 16th January 2025.

People

Jon Williamson (PI), Philosophy Department, University of Manchester.

Trish Greenhalgh (co-leader), Department of Primary Care Health Sciences, University of Oxford.

Rebecca Helm (co-leader), Law School, University of Exeter.

Jon Williamson Trish Greenhalgh Rebecca Helm

UKRI University of Manchester University of Oxford University of Exeter