"This article offers an overview of possible methods for the study of improvement interventions. The choice of available designs is wide, but debates continue about how far improvement efforts can be simultaneously practical (aimed at producing change) and scientific (aimed at producing new knowledge), and whether the distinction between the practical and the scientific is a real and useful one."
How to study improvement interventions: a brief overview of possible study types
M C Portela, PJ Pronovost, T Woodcock, P Carter, M Dixon-Woods
BMJ Quality and Safety 2015;24:325-336 doi:10.1136/bmjqs-2014-003620
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