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Foundation chapters read
Foundation Sequence
Read the 8 foundation chapters in order to build your causal inference vocabulary from the ground up.
- 1F1: Why Causal Inference?
The fundamental problem of causal inference — why comparing treated and untreated is not enough.
- 2F2: The Anatomy of a Research Design
The pipeline from question to credible answer — every step matters.
- 3F3: Selection Bias and Confounding
The single biggest threat to your research — and the reason every method on this site exists.
- 4F4: The Language of Identification
Estimand, estimator, estimate. ATE, ATT, LATE. The precise vocabulary you need.
- 5F5: DAGs for Beginners
A visual tool for thinking about causal relationships — draw the problem, see the solution.
- 6F6: A Taxonomy of Identification Strategies
The full toolkit — design-based, model-based, experimental, and quasi-experimental approaches.
- 7F7: Working with Data
Loading, cleaning, reshaping, and constructing variables — the unglamorous but essential work.
- 8F8: The Credibility Revolution
How empirical economics transformed itself — and what it means for your research.
Learning Paths
Achievements
Foundations Complete
Visited all 8 foundation chapters.
Core Path Complete
Completed the Core Causal Inference learning path.
First Replication
Completed your first replication lab.
First Extension
Visited a Frontier method page — pushing beyond the standard toolkit.
Error Detective
Visited 10 method pages — explore Error Detective exercises along the way.
Table Whisperer
Visited 5 guide pages — explore practical how-to guides for empirical research.
Referee
Visited 3 method pages — try the Referee Exercise on each page.
Multimethod
Completed a comparison demo — seeing the same data through different lenses.