A brand lift study measures whether exposure to a marketing campaign changes how people think, feel or intend to act toward a brand. Its central purpose is to distinguish campaign-related changes in awareness, recall, consideration or purchase intent from changes that would have occurred without advertising exposure.
Unlike media delivery metrics, brand lift measurement evaluates communication effects among people rather than only impressions, clicks or reach. It is therefore used to assess whether a campaign has influenced relevant brand indicators within a defined target audience.
What is a brand lift study?
A brand lift study is a research design used to estimate the incremental effect of advertising or other brand communication on selected brand metrics. It typically compares responses from an exposed group, meaning people who had an opportunity to see or hear the campaign, with a control group that was not exposed under comparable conditions.
The difference between the groups is referred to as brand lift. If the exposed group demonstrates higher aided awareness, ad recall, brand consideration or purchase intention than the control group, the result may indicate that the campaign contributed to that difference. The strength of this conclusion depends on the quality of group assignment, sample design, exposure verification and statistical analysis.
Brand lift measurement is rooted in experimental and quasi-experimental research logic. The objective is not merely to describe attitudes toward a brand, but to estimate whether communication activity caused a measurable shift in those attitudes. For this reason, a well-designed study seeks to minimise differences between exposed and unexposed respondents other than campaign contact.
Typical outcomes assessed in a brand lift study include:
- brand awareness, both unaided and aided;
- advertising awareness and message recall;
- association of the brand with a specific need, category or value proposition;
- familiarity and favourability toward the brand;
- consideration of the brand for a future purchase or supplier selection process;
- purchase intent, recommendation intent or preference;
- perceived differentiation, relevance or trustworthiness of the brand.
The appropriate indicators depend on campaign objectives, category dynamics and the decision journey. For an emerging consumer brand, awareness and consideration may be central. In B2B markets, where purchase cycles are longer and decisions involve multiple stakeholders, a brand lift study may focus more strongly on familiarity, credibility, shortlisting likelihood and association with a specific business need.
Application of a brand lift study in practice
A brand lift study is most useful when an organisation needs evidence of communication effectiveness beyond platform metrics and short-term conversion data. It can be conducted during an active campaign, immediately after it ends or as part of an ongoing measurement framework. The method is relevant for advertisers, media teams, brand managers, market researchers and analytics functions responsible for evaluating marketing investment.
In practice, brand lift measurement is often used in the following situations:
- evaluating a new brand campaign across digital, social, video, audio, out-of-home or television channels;
- comparing the communication impact of different creative concepts or media strategies;
- assessing whether a product launch has increased awareness and consideration among priority audiences;
- measuring the effect of employer branding activity on perceptions among potential candidates;
- evaluating thought-leadership campaigns in B2B categories, where the aim is to build expertise and credibility rather than generate immediate sales;
- identifying whether a campaign has shifted perceptions of brand attributes, such as innovation, quality, accessibility or sustainability.
For example, a financial services company may use a brand lift study to determine whether a campaign increased trust and consideration among people planning to change providers. A manufacturer of specialised industrial equipment may assess whether decision-makers exposed to an expert-led campaign are more likely to recognise the brand as a credible partner in a particular production challenge.
The question of how to measure brand lift should begin with defining the communication objective and selecting metrics that can plausibly change during the campaign period. The study should also specify the target population, exposure definition, control-group construction and fieldwork timing. Measuring a purchase outcome too early in a long B2B decision process may be less informative than measuring familiarity, credibility or consideration.
Hume’s Institute can incorporate brand lift measurement into quantitative or mixed-methods projects when campaign evaluation requires both robust comparisons and interpretation of the reasons behind observed results. Quantitative measurement may be supplemented with qualitative interviews to explain why a message was memorable, unclear, credible or insufficiently distinctive.
Brand lift study and related methods
A brand lift study belongs to the broader set of marketing effectiveness and brand equity research methods, but it serves a distinct purpose. It focuses on the incremental effect of a specific communication activity or campaign period, whereas other approaches may track brand health over time, explain customer motivations or estimate commercial return.
Brand tracking is closely related to brand lift measurement, but the methods differ in timing and analytical logic. Brand tracking monitors indicators such as awareness, consideration and preference at repeated intervals. It is useful for identifying longer-term trends. A brand lift study, by contrast, is designed to compare exposed and control groups in order to estimate the effect attributable to a defined campaign.
Campaign evaluation can also include media metrics, web analytics and sales analysis. These sources answer different questions:
- media metrics describe campaign delivery, such as reach, frequency and viewability;
- web analytics describe behavioural responses, such as site visits, engagement and lead submissions;
- sales or CRM analysis examines downstream commercial outcomes;
- brand lift measurement assesses changes in perceptions, memory and declared intentions;
- qualitative research explains the meanings, associations and decision mechanisms behind audience responses.
A brand lift study should not be confused with sales lift measurement. Sales lift concerns incremental transactions, revenue or other commercial outcomes. Brand lift concerns changes in mental availability, attitudes and intentions. The two may be connected, but a positive brand lift does not automatically prove immediate sales growth, particularly in categories with long purchase cycles, high prices or multiple decision-makers.
Similarly, ad recall is only one potential metric within a brand lift study. Strong recall may show that a campaign was noticed or remembered, but it does not by itself demonstrate that the message improved brand consideration, trust or preference. For this reason, the questionnaire should include measures linked directly to the campaign objective rather than relying exclusively on recall.
How to conduct reliable brand lift measurement
Reliable brand lift measurement requires methodological discipline because exposed and unexposed audiences can differ for reasons unrelated to the campaign. People already interested in a category or brand may be more likely to notice advertising, visit relevant websites or engage with branded content. Without appropriate controls, these pre-existing differences can be mistaken for campaign impact.
A sound brand lift study generally includes several design decisions. First, the target audience and relevant campaign exposure must be defined clearly. Second, the control group should resemble the exposed group as closely as possible in relevant characteristics. Third, questions should be neutral, understandable and aligned with the campaign’s intended outcomes. Finally, results should be interpreted in the context of sample quality, confidence intervals, campaign duration, frequency of exposure and the wider competitive environment.
Where randomised control is possible, it provides a stronger basis for causal inference. In many real-world settings, however, exposure cannot be assigned randomly. Researchers may then use matched samples, geographic comparisons, pre-post designs or statistical adjustment techniques. Each option has different assumptions and limitations, which should be made explicit when reporting results.
The value of a brand lift study lies not only in determining whether a campaign generated a positive shift. It also supports practical optimisation by showing which audiences, messages, channels or brand associations responded most effectively. Used alongside brand tracking, qualitative research and behavioural data, it provides a more defensible view of how marketing activity influences brand outcomes.