By Alvena Ode, Founder & CMO, Blastily · 4 min read

Awareness campaigns are often judged by the wrong metric: impressions. Impressions tell you the ad ran; they don't tell you whether anyone remembers it. To measure brand awareness properly, you need to ask people. That's what a brand lift study does.
This guide is part of our guide to measuring billboard, TV and radio advertising.
| Metric | Typical question |
|---|---|
| Unaided awareness | "When you think of [category] in [city], which companies come to mind?" |
| Aided awareness | "Which of these companies have you heard of?" |
| Ad recall | "Do you recall seeing or hearing advertising for [brand] recently?" |
| Message association | "Which brand says [your key message]?" |
| Consideration | "Which would you consider for your next [purchase]?" |
| Favourability | "How do you feel about [brand]?" |
| Intent | "How likely are you to [buy/visit/contact] [brand]?" |
Pick two or three that match your campaign goal. Unaided awareness and consideration are usually the most meaningful.
Survey your target audience before the campaign, then again during or after. Simple, but other factors (seasonality, news, competitors) can influence the change.
Survey people in areas or audiences that received the campaign, and a comparable group that didn't. This isolates the ad's effect more reliably. It works naturally for out-of-home and radio run in some markets but not others. The same test-and-control logic appears in how to calculate billboard ROI.
The strongest design combines both: before and after, in both exposed and control groups.
Small samples can only detect large changes. A few dozen responses might show that something happened; a few hundred per group gives a more reliable read on moderate changes. If your budget is limited, focus the survey on the single metric that matters most rather than spreading responses across many questions.
Look for:
If recall is high but consideration isn't moving, the creative may be memorable but not persuasive. If recall is low, check frequency (how much you need) and whether the brand is clear in the creative (billboard design for recall).
Brand lift proves your campaign is changing minds. The next question is whether that change turns into business. Tie awareness results to business KPIs, and give it the right time frame. See how long advertising takes to work.
A study that measures how advertising changes perceptions, such as awareness, recall, consideration or purchase intent, by comparing people who were exposed to the campaign with similar people who weren't, or by comparing results before and after.
Unaided awareness asks people to name brands in a category without prompts. Aided awareness shows or reads a list and asks which they've heard of. Unaided is harder to move and a stronger signal.
Enough in each group to detect the change you care about. As a rough guide, a few hundred responses per group gives a reasonable read on moderate changes; small samples can only reliably detect large changes.
Yes, in simple form. Online survey panels, platform-provided brand lift tools, and short customer surveys can give a useful signal without a large research budget.
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