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Evidence & Research Literacy glossary

Statistical significance: meaning, context, and what to check.

A statistical indication evaluated under a defined model; it does not automatically mean an effect is large, important, or useful.

IPA and plain-English pronunciationDirect answer and decision contextSources and review date

Definition in one sentence

What does Statistical significance mean?

A statistical indication evaluated under a defined model; it does not automatically mean an effect is large, important, or useful.

How to pronounce Statistical significance

stuh-TIS-tih-kuhl sig-NIF-ih-kuhns

IPA/stə.ˈtɪ.stɪ.kəl səɡ.ˈnɪ.fɪ.kəns/Sounds likestuh-TIS-tih-kuhl sig-NIF-ih-kuhns

Common American English pronunciation.

TopicEvidence & Research Literacy
Pronunciationstuh-TIS-tih-kuhl sig-NIF-ih-kuhns
Editorial depthReference page
ReviewedJuly 2026
Why it matters

This research term changes how strongly a study can support a claim and whether its findings apply to the ingredient, dose, population, and product being discussed.

What it does not prove

The presence of a study term does not prove causation, a meaningful everyday benefit, or that the retail product matches the studied material.

What to check
  • Identify the study type, population, sample size, formula, dose, duration, and outcome.
  • Separate statistical significance from practical or clinical meaning.
  • Review limitations, conflicts of interest, and whether findings were replicated.

Example

How does Statistical significance appear in a real decision?

Practical example

A headline may describe evidence as “Statistical significance”; read the study design and what was actually measured before accepting the claim.

Decision context

Why does Statistical significance matter?

This research term changes how strongly a study can support a claim and whether its findings apply to the ingredient, dose, population, and product being discussed.

Label and use checklist

What should you check when you see Statistical significance?

  • Identify the study type, population, sample size, formula, dose, duration, and outcome.
  • Separate statistical significance from practical or clinical meaning.
  • Review limitations, conflicts of interest, and whether findings were replicated.

Claim boundary

What does Statistical significance not prove?

The presence of a study term does not prove causation, a meaningful everyday benefit, or that the retail product matches the studied material.

Clear the shortcuts

What are common misunderstandings about Statistical significance?

Any published study is not automatically strong evidence.

Research on cells, animals, or a different extract cannot be treated as proof for every consumer product.

PAA-style answers

Questions people also ask about Statistical significance

What is Statistical significance?

A statistical indication evaluated under a defined model; it does not automatically mean an effect is large, important, or useful.

How do you pronounce Statistical significance?

A common American English pronunciation is stuh-TIS-tih-kuhl sig-NIF-ih-kuhns. In the International Phonetic Alphabet, it is written /stə.ˈtɪ.stɪ.kəl səɡ.ˈnɪ.fɪ.kəns/.

Why does Statistical significance matter?

This research term changes how strongly a study can support a claim and whether its findings apply to the ingredient, dose, population, and product being discussed.

What should you check when you see Statistical significance?

Identify the study type, population, sample size, formula, dose, duration, and outcome. Separate statistical significance from practical or clinical meaning. Review limitations, conflicts of interest, and whether findings were replicated.

Does Statistical significance prove that a mushroom product is better, safe, or effective?

The presence of a study term does not prove causation, a meaningful everyday benefit, or that the retail product matches the studied material.

What does Statistical significance not prove?

The presence of a study term does not prove causation, a meaningful everyday benefit, or that the retail product matches the studied material.

Maintained reference

Sources, review, and corrections

This definition uses authoritative labeling, taxonomy, research-literacy, or cultivation sources and applies them conservatively to consumer decisions.

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