An interactive guide for graduate students
MethodAtlas
Learn Causal Inference from First Principles — Interactive Lessons, Real Data, Modern Methods
Assistant Professor of Management
The Wharton School, University of Pennsylvania
Where to begin
Choose Your Path
New to Causal Inference
Start from the foundations
Begin with potential outcomes and selection bias. Build your intuition before touching any methods.
I Know the Basics
Jump straight to methods
Browse 27 methods with interactive simulations, multi-language code, and practice exercises.
Help Me Choose a Method
Use the interactive decision tree
Answer questions about your research design and get a personalized method recommendation.
Popular starting points
Recommended First Reads
Why Causal Inference?
The fundamental problem that motivates every method on this site. — and why correlation is never enough.
12 min read · Beginner · Start here
FoundationSelection Bias
The single biggest threat to your research.
MethodDifference-in-Differences
The workhorse of modern policy evaluation.
LabDiD Tutorial Lab
Hands-on: replicate a classic DiD analysis step by step.
GuideHow to Read a Paper
A structured guide to evaluating causal claims.
ToolMethod Selector
Walk through the decision tree to find the right method.