Independent · non-commercial · publishes on a quarterly cycle|Current cycle 2026 Q3
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Compound Evidence InstituteEvidence synthesis · established 2023Graded assessments of compounds, trials, methods and supply
Document set current to 30 July 2026
Defined term · Evidence assessment

Negative result

A result in which the observed effect does not differ from the comparator by more than chance would produce. Informative where the study was adequately powered for the effect of interest and…

Document identifier
CEI-GT-029
Series
Defined term
Version
1.0
Published
30 Jul 2026
Last reviewed
30 Jul 2026
Certainty
Not rated

§1Negative result

§1.2Category

Evidence assessment — Terms describing how the Institute judges and reports the strength of evidence.

§1.3Related terms

  • Evidence of absence — A finding, from a study adequately powered to detect an effect of the size of interest, that no such effect was observed. A negative result from an adequately powered…
  • Absence of evidence — A state in which no study adequate to answer a question has been identified. The Institute records an absence of evidence as distinct from evidence of absence: the first…
Compound Evidence Institute · CEI-GT-029 · https://compoundevidence.com/glossary/negative-result/ · retrieved 30 July 2026
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