Realist evaluation has gained prominence in recent years especially in the evaluation of programs involving human services, social policies and health interventions. In this paper the authors seek to unpack the key tenets scaffolding the practical application of realist evaluation.

Australia has been comparatively effective in preventing the transmission of COVID-19. The Sydney Local Health District [SLHD] used a “whole of health” integrated approach to respond to the pandemic. The aim of this study was to understand for whom, how and why this response worked, to inform a sustainable system transformation. Methods: A critical realist...