Reference / Glossary / Measurement
Confidence Interval
The range within which a measured value, such as incremental lift, probably lies, at a stated confidence level. A lift of 12 percent with a 95 percent confidence interval of 2 to 22 percent is a positive result with wide uncertainty; a result whose interval includes zero has not shown an effect.
Related terms
Used in The Signal
Cite this entry:
Agency Echelon. "Confidence Interval." Agency Echelon Reference, reviewed September 2026. https://agencyechelon.com/reference/glossary/confidence-interval/