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Causal Inference Course

Discussion 7. Matching

STSCI/INFO/ILRST 3900: Causal Inference

October 28, 2026

  • You can download the slides for this week’s discussion.

  • Download the .Rmd and fill in the blanks

This exercise use the lalonde dataset from the following paper:

Dehejia, R. H. and Wahba, S. 1999. Causal Effects in Nonexperimental Studies: Reevaluating the Evaluation of Training Programs. Journal of the American Statistical Association 94(448):1053–1062.

The paper compares methods for observational causal inference to recover an average causal effect that was already known from a randomized experiment. You do not need to read the paper; we will just use the study’s data as an illustration.

  • Answer the question and hand in the in-class assignment