- One-sentence test choice
Write the test you’ll use in one sentence that a smart non-statistician would accept. If you can’t, you’re not ready to analyze.
- Direction audit
State your directional hypothesis on paper. Circle the observation that would make you retract it. If you can’t find one, you don’t have a hypothesis… you have a preference.
- Ambiguity tally
For three days, note every “Wait… what?” moment. End each with a rewrite that would’ve prevented it. Which rewrite repeats?
- Ending rehearsal
Schedule a five-minute ending for one task you dread. Make it easy, specific, and positive. Re-rate the task tomorrow.
- Label like a human
Replace “Group A/B” with real labels that capture the design logic. Read your results aloud. Do they suddenly make more sense?
- Assumption speed-check
Create a 30-second checklist: randomization or not… sample size or normality… correct test value… correct mapping of rows. Run it before every analysis.
- Two-analysis trap
Analyze a small dataset two ways that answer different questions. Present both to a friend. Which question matters more in the real world?
- Power with a conscience
If you switch from two-tailed to one-tailed, write why… and what would make you switch back. Keep the note with the output.
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