Original paper

Three conditions under which experiments and observational studies produce comparable causal estimates: New findings from within‐study comparisons

Volume: 27, Issue: 4, Pages: 724 - 750
Published: Sep 1, 2008
Abstract
This paper analyzes 12 recent within‐study comparisons contrasting causal estimates from a randomized experiment with those from an observational study sharing the same treatment group. The aim is to test whether different causal estimates result when a counterfactual group is formed, either with or without random assignment, and when statistical adjustments for selection are made in the group from which random assignment is absent. We identify...
Paper Details
Title
Three conditions under which experiments and observational studies produce comparable causal estimates: New findings from within‐study comparisons
Published Date
Sep 1, 2008
Volume
27
Issue
4
Pages
724 - 750
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