方法证据记录
Blocked Natural Experiment
A blocked natural experiment is a quasi-experimental design that exploits naturally occurring, researcher-uncontrolled variation in treatment assignment while pre-stratifying (blocking) units on key observed covariates. Blocking absorbs between-stratum variance, improves statistical precision, and strengthens the plausibility of the as-if-random assumption within each block. The design draws on Fisher's blocking principle and the natural experiment tradition in economics and epidemiology.
源记录
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Blocked Natural Experiment Design
分类方法记录 · process-pipeline / experimental-design
- Angrist, J. D., & Pischke, J.-S. (2009). Mostly Harmless Econometrics: An Empiricist's Companion. Princeton University Press. · ISBN 978-0691120355
- Fisher, R. A. (1935). The Design of Experiments. Oliver and Boyd. · URL
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