Experiments, testing & rollout · Core

False negative

Also called: Type II error

ELI5

The test misses a real effect.

Used in conversation

“The small sample creates false-negative risk.”

Definition

A result failing to detect an effect that is real under the tested assumptions.

Here “False negative” means: A result failing to detect an effect that is real under the tested assumptions.

Pitch context

You will see “False negative” 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.

Sources & 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