How do we learn about improving health care: a call for a new epistemological paradigm

PURPOSE The field of improving health care has been achieving more significant results in outcomes at scale in recent years. This has raised legitimate questions regarding the rigor, attribution, generalizability and replicability of the results. This paper describes the issue and outlines questions to be addressed in order to develop an epistemological paradigm that responds to these questions. QUESTIONS We need to consider the following questions: (i) Did the improvements work? (ii) Why did they work? (iii) How do we know that the results can be attributed to the changes made? (iv) How can we replicate them? (Note, the goal is not to copy what was done, but to affect factors that can yield similar results in a different context.) NEXT STEPS Answers to these questions will help improvers find ways to increase the rigor of their improvements, attribute the results to the changes made and better understand what is context specific and what is generalizable about the improvement.