Move guide
Evidence tools
Keep the question, observation, and decision connected.
Choose a move in the practical Guide →Explore the moves and parts
- Evidence SentenceOne written line, set down before you look at the evidence, that names your claim, the strongest competing explanation, the check you will run, and what you will do for each possible result.Expand branch →
- Evidence ContractBefore you gather any data, write down on one page what decision it serves, what the competing explanations predict, and what result would change your mind.Expand branch →
- Prediction & Evidence LedgerWrite down what you expect to happen, and when, before you look, then log what actually happened next to it, so you can tell whose explanation was right instead of arguing from memory.Expand branch →
- Measurement CardA Measurement Card is a one-page form you fill in before reporting a number, pinning down exactly what it counts, on whom, over what period, and what it cannot prove.Expand branch →