An interactive guide for PhD students

Method Atlas

Learn Causal Inference from First Principles — Interactive Lessons, Real Data, Modern Methods

By Saerom (Ronnie) Lee, Assistant Professor of Management, Wharton School, University of Pennsylvania

How much experience do you have with causal inference?

We will route you to the best starting point.

Just getting startedI have taken introductory statistics but have not studied causal inference or identification strategies.

Some experienceI know the basics (OLS, maybe DiD or IV) and want structured learning paths to deepen my knowledge.

Looking for specific methodsI already understand causal inference and want to look up a specific method, practice, or run a lab.

Causal Inference Methods

From OLS to causal forests, each with interactive lessons

Research Practices

Sensitivity analysis, pre-registration, power analysis, and more

Foundation Chapters

Build your intuition from the ground up

The fundamental problem that motivates every method on this site.

The single biggest threat to your research.

The workhorse of modern policy evaluation.

Hands-on: replicate a classic difference-in-differences analysis step by step.

A structured guide to evaluating causal claims in published research.

Not sure which method to use? Walk through the decision tree.