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Which design can you run?

Every evaluation faces the same question: compared with what? Answer a few questions about your constraints, and this tool finds the strongest comparison your situation allows, along with what it buys you and what it can't fix.

All eight designs at a glance

The picker lands on one, but knowing the full menu helps you argue for better data next time. Click any design to expand it.

Grounded in Shadish, Cook and Campbell (2002), Experimental and Quasi-Experimental Designs for Generalized Causal Inference, and the What Works Clearinghouse Standards Handbook v4.1. Built by Brooklyn Corbett · brooklyncorbett.com