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Dictionary by pitch.dog
Experiments, testing & rollout · Working

Effect size

Also called: treatment effect

ELI5

How large the change actually is.

Used in conversation

“The effect size is too small to justify the complexity.”

Definition

The magnitude of a difference or relationship, independent of sample size.

Here “Effect size” means: The magnitude of a difference or relationship, independent of sample size.

Pitch context

You will see “Effect size” 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.

When the words have to travel

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Sources & evidence · 2

Supporting source families. This entry is an editorial synthesis rather than a quotation from one canonical glossary.