Statistical power
Also called: power
ELI5
How likely the test is to notice a real change.
Used in conversation
“Low statistical power makes a null result inconclusive.”
Definition
The probability that a test detects an effect of a specified size when that effect is real.
Here “Statistical power” means: The probability that a test detects an effect of a specified size when that effect is real.
Pitch context
You will see “Statistical power” in product strategy decks, roadmaps, experiments and architecture reviews when the discussion reaches experiments, testing & rollout.
Why it matters: It helps a reader interpret experiments, testing & rollout without confusing the measure, decision, role or evidence being discussed.
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See how pitch.dog can helpSources & evidence · 2
Supporting source families. This entry is an editorial synthesis rather than a quotation from one canonical glossary.
- Scrum Guides — The Scrum Guide — official current versionSupporting source family · primary · checked 2026-08-16
- National Institute of Standards and Technology — Computer Security Resource Center GlossarySupporting source family · primary · checked 2026-08-16