Quasi-experiments are a valuable source of evidence about effects of interventions, programs and policies: commentary from the Campbell Collaboration Study Design and Bias Assessment Working Group

Sharma Waddington, H., Wilson, D. B., Pigott, T., Stewart, G., Aloe, A. M., Tugwell, P., & Welch, V. (2022). Quasi-experiments are a valuable source of evidence about effects of interventions, programs and policies: commentary from the Campbell Collaboration Study Design and Bias Assessment Working Group. Journal of Clinical Epidemiology, 152, 311–313. https://doi.org/10.1016/j.jclinepi.2022.11.005