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What are my options for measuring OOH performance?

The six measurement products, the question each one answers, what you have to supply for each, what is included versus quoted separately, and which partners run what.

Written by Zachary Cuva

OOH can be held to the same accountability standard as your other channels, and there are six measurement products to hold it there. Each one answers exactly one question, so start from the question you will eventually have to answer, then read the study you land on.


Start from the question you need to answer

  • Did people who passed my units convert? Attribution. Needs a pixel for web and app. You supply the pixel or your MMP.

  • Did the campaign cause my sales to change? Causal lift, also called sales lift. No pixel. You supply daily events by market.

  • Did interest in my brand rise where I ran? Search lift. No pixel. You supply brand and competitor terms.

  • Did OOH lift my other paid channels? Halo effect. No pixel. You supply ad account authorization.

  • Did awareness, recall, or consideration move? Brand lift. No pixel. You supply the brief, the questions, and the creative.

  • Do I need the raw exposed device IDs for my own systems? Device ID passback. No pixel. You supply a cloud bucket to receive the file.


Read this before the rest

Only the attribution family requires the units you bought to carry attribution data. If your buy includes formats that cannot be attributed, you have not lost measurement. Causal lift, search lift, halo effect, and brand lift all still run.

Buyers of hard-to-attribute formats sometimes conclude that nothing about their campaign is measurable. Usually three of the five studies are still open to them.


What is included, and what is quoted separately

Impression reporting per unit, based on third-party industry measurement, and exposed-audience analytics, which give you the devices exposed to your campaign for lift measurement and retargeting. The device ID passback file is included rather than billed separately.

Brand lift is the exception, because the survey is a third-party expense. It is quoted separately, per market.


Attribution: did exposed devices convert

Starts at the unit, not at your converters. Devices in the viewshed are collected, then matched against your conversion events. A conversion counts if it happens within 30 days of the moment that device was exposed, so every exposure carries its own window rather than the campaign sharing one. Thirty days is the default and is set per report.

It returns attributed visits, conversions, conversion rate, exposure frequency before conversion, time from exposure to conversion, and which units performed best. It is the fastest to set up and the first to report.

What it does not tell you is whether those conversions would have happened anyway. That is a different study.


Causal lift: did the campaign cause the change

The study for when the question is whether the channel worked at all, and when you have to defend the answer upward.

We predict what your daily events would have done in your campaign markets had the campaign never run, using your own history and comparable markets where you were not running. The gap between prediction and reality is the lift, and it carries a significance score.

You supply a CSV of daily events by market covering at least six months before launch, twelve preferred, including at least five markets with no OOH. Four columns: date, event name, number of events, market.


Search lift: did interest rise

Also called organic brand lift. It compares branded search volume in your markets against control markets and competitor terms, indexed so that common seasonal movement drops out. Your brand term needs to have had search activity in the past two months for this to run at all.

It is not a causal study. It shows that search interest moved; it cannot tell you that your campaign moved it. It does run on a single market, where halo will not, because it is not held to the same statistical bar.


Halo effect: did your other channels benefit

The same counterfactual method as causal lift, applied to your other channels' performance instead of your sales.

It needs authorized read access to Google Ads, Google Analytics, and Facebook, with one Facebook ad account per campaign. No TikTok, no Taboola.

It is modeled, not tracked. No device is followed from a billboard to a click.


Brand lift: did perception move

The only survey in the set, and the only study that measures something a conversion cannot show you. Devices collected near your units are surveyed, shown the creative, and split into recallers and non-recallers.

The standard study is 500 completes. Larger samples and extra survey questions can be added to it. See the brand lift article for how the study is designed and delivered.


If you came here looking for conversion lift

You are probably arriving from digital, where Meta and Google both sell a product called Conversion Lift: a user-level experiment that splits real people into exposed and control groups and compares their conversion rates.

We do not run that study, and no OOH vendor can. There is no way to randomize who walks past a billboard, so there is no user-level control group to build.

Causal lift is the equivalent, and it answers the same question at a different unit of analysis. Instead of splitting people, it splits markets: your campaign markets against comparable markets where you were not running, with the counterfactual doing the work the control group does in a digital test. Same purpose, aggregate method.

The difference is where the answer lands. A digital conversion lift test tells you which people converted because of the ad. Causal lift tells you how much of your market-level volume the campaign caused. If your measurement plan requires the first, OOH is not the channel where you will get it.


Third-party partners

AdQuick works with established measurement partners across categories: Happydemics, Lucid, and Dynata for brand lift; Measured, Paramark, TransUnion, Attributy, Keen, and Evidnt for marketing mix modeling and omnichannel measurement; and AppsFlyer for app measurement. Exposure and spend data can also feed your own MMM or attribution platform.


Choosing an approach for where you are

  • First OOH campaign, need internal proof: market-level lift through search and web, plus a brand lift study.

  • Performance-oriented and digital-native: device-based attribution against web or app conversions.

  • Retail or physical footprint: foot traffic lift.

  • Sophisticated media organization: exposure data into your own MMM alongside every other channel.

The one rule: design measurement before launch. Control markets, study sizing, and pixel or data setup all have to exist before the flight starts, not after.

If you remember one thing, remember the split. Attribution answers what happened after exposure. Causal lift answers what would not have happened without the campaign. Nearly every measurement question that arrives late in a campaign is one of those two, and the second one needs data you have to plan for.


Common misconceptions

Myth: Web attribution, search lift, and halo effect are the same thing.

Reality: They are three distinct studies. Only the attribution family needs the unit to carry attribution data.

Myth: Only a brand lift study can be attached to an OOH buy.

Reality: The full stack is available: attribution, causal lift, halo effect, search lift, and app attribution.

Myth: Conversion lift is a study you can buy for an OOH campaign.

Reality: It is a digital-native, user-level experiment. Causal lift is the OOH equivalent, measured at market level.

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