Using natural experiments to evaluate population health interventions: new Medical Research Council guidance
Journal of Epidemiology and Community Health, 06/04/2012
Craig P et al. – Natural experimental studies are often recommended as a way of understanding the health impact of policies and other large scale interventions. Although they have certain advantages over planned experiments, and may be the only option when it is impossible to manipulate exposure to the intervention, natural experimental studies are more susceptible to bias.