Glossary
What is brand lift?
Updated
Definition
Brand lift is the measurable change in consumer perception of a brand caused by an advertising campaign, expressed as a shift in awareness, ad recall, consideration, or purchase intent between people who saw it and a matched holdout group who did not.
Brand lift measurement grew up alongside digital ad platforms. The standard design of a brand lift study is an exposed versus holdout experiment: the platform holds out a randomized group that never sees the advertising, surveys both groups with the same questions about ad recall, brand awareness, consideration, favorability, or purchase intent, and reports the difference as the lift the campaign caused. Meta and YouTube offer built-in lift studies, and firms like Kantar and Nielsen run independent versions across channels.
Results come back as absolute lift (the percentage point change) or relative lift (the percent change measured relative to the holdout baseline). The catch is statistical power. Brand metrics move in small increments, often one to three points, so a study needs a large exposed audience and meaningful media spend before the delta clears noise. Below that threshold the study comes back inconclusive, which says more about the sample size than about the creative.
The practitioner pitfall is treating one study as a verdict. Lift is measured among consumers willing to answer an in-feed survey, holdout groups can be contaminated by exposure on other channels, and a single flight is a single context. Teams that get real value from brand lift run it as a repeated program with consistent questions, then read the trend rather than any one number.
How this shows up in Waldo
Lift studies tell you what exposed consumers say; observed behavior tells you what the market did. Teams pair survey lift with Waldo’s tracked conversation, engagement, and competitor ad-library data around the same campaign window, checking whether mentions, sentiment, and share of the category conversation actually moved during the flight, and whether a flat result coincided with a surge of competitive advertising pressure. Every output links to its sources, so the movement can be inspected post by post.
Questions teams ask
What is a brand lift study?
A controlled experiment that measures how an advertising campaign changed consumer perception. An eligible audience is split into an exposed group that sees the campaign and a holdout group that does not, both answer the same survey questions, and the percentage point difference in positive responses is the lift attributable to the advertising.
What metrics does a brand lift study measure?
Four core metrics, in rough order of how easily they move: ad recall (did people remember seeing the advertising), brand awareness (do they know the brand), consideration (would they include it in a purchase decision), and purchase intent (do they plan to buy). Platforms report each as absolute lift, the raw percentage point change, and relative lift, the change as a percentage of the holdout baseline.
How is brand lift different from direct response measurement?
Direct response counts observed actions: clicks, conversions, revenue. Brand lift measures what consumers think and feel, which no click stream can observe. Someone who saw a video ad three times and never clicked may still have moved from never having heard of the brand to considering it next time; that shift has commercial value but produces no conversion event to count.
How do you interpret brand lift study results?
Three numbers matter. Absolute lift is the honest one to report: the actual percentage point change. Relative lift looks larger and inflates when the holdout baseline is low. Statistical significance is the filter: an inconclusive study usually means the exposed audience or the spend was too small for a real effect to clear noise, not that the campaign failed. Trends across repeated studies carry more information than any single readout.
What is a good brand lift result?
There is no universal benchmark, and published figures shift as ad platforms evolve. As an orientation: ad recall usually lifts most because it sits closest to the exposure, awareness lifts less because its baseline is higher, and consideration and intent move least while meaning the most commercially. Treat anything under one percentage point of absolute lift with caution, not as failure but as a result the measurement may have lacked the power to detect.
Related terms and reading
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