A practical tool for your next Short
Shorts Experiment Planner
Set out one change, a comparison and the decision you will make after reviewing it.
Your inputs
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Your result
An observational comparison does not prove causation. Record differences you cannot hold constant.
Make The Result Useful
Choose a decision first, then one main change. Define the comparison window and the differences you cannot hold constant. Write the decision rule before reviewing outcomes so one striking result does not silently change the question.
An observational comparison does not prove causation. Record differences you cannot hold constant.