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How do brand lift studies work?

How the exposure-based survey splits recallers from non-recallers, what it can measure, and which minimums belong to the agile and enterprise tiers.

Written by Zachary Cuva

A survey partner delivers the study to people whose devices were collected near your units. Respondents are shown your creative, then asked whether they recall seeing it on a billboard. Recallers and non-recallers become your exposed and control groups, so the study does not need a pre-campaign wave to be valid.


How the survey is delivered

Mobile ad IDs collected in your units' viewsheds are passed to the survey partner. The survey runs programmatically, shows the creative, and uses recall of it to split the sample. That split is what makes the comparison work without a baseline wave fielded before launch.

The standard study is 500 completes: 250 who recall the ad and 250 who do not. Larger samples are available at 1,000 and 2,000 completes.

Note the vocabulary trap: exposed means something different here than it does in attribution. In attribution it means a collected device ID. In brand lift it means a respondent who recalled the ad.


Who runs the studies

Happydemics for most campaigns. Lucid and Dynata on larger campaigns, where their panels and stricter match parameters are viable. Because these are established third-party measurement partners, the results carry independent credibility with your stakeholders.

The panel is licensed, not owned by AdQuick. Panel-based partners carry their own device and impression minimums, which is the historical reason brand lift was out of reach for smaller OOH campaigns.

Device passback to the survey partners is not yet automated. An API is in development; today it is a managed step on our side.


What the survey can measure

Not only awareness. KPIs are selected from a template list and include aided and unaided awareness, ad recall, consideration, purchase intent, and message association. Pick them in the brief, because they determine the questions. Custom questions can be added for campaign-specific goals.


How to read the results

Lift is reported as the percentage-point difference between the exposed and control groups, with statistical significance indicated. Context matters: a small absolute lift on a low baseline can be a large relative gain, so read the number against your spend level rather than in isolation. Your AdQuick team walks through the readout with you.

Results also come back benchmarked against comparable studies by market and vertical. That benchmark is separate from your control group: the control is your own non-recallers, and the benchmark is how other brands in your category perform. The two get conflated regularly.


Two tiers, and which minimums belong to which

Almost every wrong answer about brand lift minimums comes from mixing these two up.

  • The default agile study, exposure-based: no impression floor at all. What it does need is at least three units or points of interest per market, and a campaign running at least two weeks. Those are real requirements and they are the ones most likely to catch a small campaign.

  • The enterprise panel option: larger panels, stricter matching, and correspondingly heavier requirements. The multi-million impression floor you may have been quoted belongs to this tier and to no other, because a panel study needs to find enough panel members to hold statistical significance.

There is no minimum sample requirement on the default study. That means there is no threshold you must clear to qualify, not that the study has no defined size.


What determines whether you see measurable lift

Scale and frequency. An underpowered study produces an inconclusive read, so we size the campaign for measurement before the study is booked rather than after it reports. Allow three weeks before launch for feasibility checks and control-market selection.


One survey, one channel

The question asks specifically whether the respondent saw the ad on a billboard. That specificity is what makes the OOH read clean, and it is also why a single survey cannot double as cross-channel recall. Measuring both means two surveys, and a respondent taking the same survey twice is its own problem.


Common misconceptions

Myth: AdQuick owns the survey panel.

Reality: It is licensed from the survey partner.

Myth: One survey can cover OOH and cross-channel recall.

Reality: It cannot. The question is billboard-specific by design, and cross-channel needs a separate study.

Myth: Brand lift needs a long campaign and enormous impression volume.

Reality: That is true of panel-based models. The exposure-based model lowers the floor substantially.

Myth: The benchmark in the report is the control group.

Reality: The benchmark is category performance. Your control group is your own non-recallers.

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