* ref: Korea Summer Workshop on Causal Inference 2023 In ___…
* ref: Korea Summer Workshop on Causal Inference 2023 In ________________, experimental subjects are randomly split into treatment and control groups. For example, in an experimental study for a pharmaceutical pill, who receives the pill and who receives a placebo pill are randomized. The group that receives the pharmaceutical pill is control group. The group that receives the placebo pill is treatment group.
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