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Preregistration
“Writing down the plan before seeing results changes what can honestly be presented as a prediction.”
01 / SUMMARY
In short
Preregistration records hypotheses, variables, and analyses before data inspection. It helps separate confirmatory tests from later exploration; it does not forbid exploration when clearly labeled.
03 / SCENE
In the wild
A team fixes its primary outcome and model before opening the dataset, then separately reports an unexpected pattern found during exploration.
04 / LIMIT
The limit
A registered plan does not guarantee sound design, adherence, or correct conclusions.
FINAL NOTE
What remains
Look for transparency about when each analytic decision was made.