References

Brady, Henry E. 2008. “Causation and Explanation in Social Science.” In The Oxford Handbook of Political Science. https://www.oxfordhandbooks.com/view/10.1093/oxfordhb/9780199286546.001.0001/oxfordhb-9780199286546-e-10.

Gerber, Alan S., and Donald P. Green. 2012. Field Experiments: Design, Analysis, and Interpretation. New York, NY: W. W. Norton & Company.