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In regression discontinuity design, when is a result valid?
in Data Science by Wooden (4,850 points)
86% Accept Rate

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  • Results are internally valid if they are unbiased for the subpopulation studied.
  • Results are externally valid if they are unbiased for the full population.

In randomized experiments, the assumptions underlying internal and external validity are rather straightforward. Results are internally valid provided the randomization was executed correctly and the treatment and control samples are balanced. And they are externally valid so long as the impact on the experimental group was representative of the impact on the overall population.

by Wooden (4,850 points)

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