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A Simple Approximation for Evaluating External Validity Bias / Isaiah Andrews, Emily Oster.
- Format:
- Book
- Author/Creator:
- Andrews, Isaiah.
- Series:
- Working Paper Series (National Bureau of Economic Research) no. w23826.
- NBER working paper series no. w23826
- Language:
- English
- Physical Description:
- 1 online resource: illustrations (black and white);
- Place of Publication:
- Cambridge, Mass. National Bureau of Economic Research 2017.
- Summary:
- We develop a simple approximation that relates the total external validity bias in randomized trials to (i) bias from selection on observables and (ii) a measure for the role of treatment effect heterogeneity in driving selection into the experimental sample.
- Notes:
- Print version record
- September 2017.
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