Consumer Behaviour & Brand Insights

Chapter 10
Consumer and Brand Insight Research

Advance Diploma in Brand Management
Consumer Behaviour & Brand Insights   •   Advance Diploma

Consumer and Brand Insight Research

Introduction

Consumer and brand insight research is the systematic process of converting evidence about people, markets and contexts into explanations that support better brand decisions. It is more than collecting opinions or reporting percentages. Research becomes insight when it explains a meaningful consumer tension, identifies why behaviour occurs, and indicates what a brand should do differently.

For brand managers, insight research supports decisions about positioning, segmentation, product development, communication, customer experience, pricing and portfolio strategy. It helps distinguish what consumers say from what they do, what they need from what they claim to need, and short-term reactions from durable motivations.

A rigorous insight process begins with a decision problem rather than a preferred method. A manager should not begin by saying, “We need a survey.” The appropriate question is: “What decision must be made, what uncertainty prevents that decision, and what evidence would reduce the uncertainty?” This chapter presents an integrated process covering problem definition, research questions, sampling, observation, interviews, focus groups, ethnography, surveys and experiments. It also evaluates validity, reliability, bias, ethics and practical limitations.

Learning Objectives

By the end of this chapter, students should be able to:

  1. Distinguish a management problem from a research problem.
  2. Construct useful research objectives and questions.
  3. Select appropriate qualitative, quantitative and mixed methods.
  4. Design samples and assess sampling limitations.
  5. Explain the uses and limitations of observation, interviews, focus groups, ethnography, surveys and experiments.
  6. Evaluate validity, reliability, credibility and generalisability.
  7. Interpret research evidence cautiously and translate it into brand action.
  8. Recognise ethical, privacy and governance responsibilities in consumer research.

1. From Management Problem to Insight Opportunity

A management problem concerns an action or decision. For example, a brand may be losing younger customers, considering a packaging redesign, or seeking to increase trial. A research problem concerns the knowledge required to address that decision. The research problem might be uncertainty about how younger consumers perceive the brand, which packaging cues create trust, or what barriers prevent trial.

A useful distinction is:

Management problemResearch problem
Sales of Brand A are declining among young adults.What perceptions, experiences and competitive alternatives explain declining preference among young adults?
Should the brand launch a smaller pack?How do price, portability, usage occasion and perceived value affect demand for a smaller pack?
The new advertisement performed poorly.Which elements of comprehension, relevance, distinctiveness and credibility limited its effectiveness?

Problem definition should identify five elements:

  • Decision context: What business decision is pending?
  • Population: Whose behaviour or perceptions matter?
  • Phenomenon: What behaviour, belief, experience or interaction is being studied?
  • Uncertainty: What is not known or is contested?
  • Decision use: How will findings influence action?

A research brief should also state scope, timing, budget, relevant markets, existing evidence and constraints. An effective brief avoids embedding an assumed answer. “Prove that consumers prefer our sustainable packaging” is leading; “Assess how packaging materials affect perceived responsibility, functionality and purchase intention” is more neutral.

The insight chain

Research usually moves through four levels:

  1. Data: recorded observations, responses, transactions or statements.
  2. Finding: a patterned result, such as frequent abandonment at delivery selection.
  3. Interpretation: an explanation, such as uncertainty about delivery timing.
  4. Insight: a decision-relevant understanding, such as “Consumers are not rejecting online purchase; they are avoiding commitment when delivery reliability is unclear.”

An insight should be evidence-based, relevant to a defined audience, capable of inspiring action and sufficiently surprising to add value. A simple observation such as “customers want convenience” is rarely an insight because it is broad and non-diagnostic.

2. Research Questions and Design Logic

Research objectives describe what the study will achieve. Research questions specify what must be answered. Good questions are focused, answerable and connected to decisions.

Common question types include:

  • Exploratory: How do consumers describe the problem in their own terms?
  • Descriptive: Who buys, how often, where and under what circumstances?
  • Diagnostic: Why does a behaviour or perception occur?
  • Causal: Does changing a specific stimulus produce a change in behaviour?
  • Evaluative: How well did an intervention perform?

For example, a brand investigating declining usage might formulate the following sequence:

  • How do lapsed users describe their recent category experiences?
  • Which barriers are most commonly associated with lapse?
  • Does improving perceived ease of use increase choice likelihood?
  • Which intervention produces the largest improvement under controlled conditions?

A conceptual framework links constructs to expected relationships. For instance, perceived authenticity may influence trust, which may influence consideration and purchase intention. The framework helps determine what to measure and what evidence would challenge the explanation. Researchers should distinguish constructs from indicators: “trust” is a construct, while agreement with statements such as “This brand keeps its promises” is an indicator.

Choosing a research design

DesignMain purposeTypical outputPrincipal strengthPrincipal limitation
QualitativeExplore meaning and motivationThemes, narratives, languageDepth and discoveryLimited statistical generalisation
Descriptive quantitativeEstimate incidence and distributionPercentages, averages, segmentsBreadth and comparabilityMay lack explanation
ExperimentalTest causal effectsDifferences between conditionsStronger causal inferenceArtificiality and implementation demands
Mixed methodsIntegrate depth and breadthExplanatory evidenceComplementarityGreater time and complexity

A sequential mixed-method design might begin with interviews to discover consumer language, use a survey to estimate prevalence, and conduct an experiment to test alternative messages. Integration should be planned: qualitative findings may shape questionnaire items, while survey patterns may identify participants for follow-up interviews.

3. Sampling: Whose Evidence Counts?

Sampling is the process of selecting research units from a defined population. The target population is the complete group to which the decision relates. The sampling frame is the operational list or access route from which participants are selected. The sample is the set actually studied.

A sample can be large yet misleading if it excludes important groups or attracts unusually motivated respondents. Sampling quality therefore depends on coverage, selection procedures, response rates and the match between sample and target population.

Probability and non-probability sampling

In probability sampling, each eligible unit has a known, non-zero probability of selection. Simple random, systematic, stratified and cluster sampling are examples. Probability sampling supports defensible estimates of sampling error, assuming the frame and implementation are adequate.

In non-probability sampling, selection probabilities are unknown. Convenience, purposive, quota and snowball sampling are common in commercial and qualitative research. These methods can be appropriate when studying specialist groups, hidden populations or exploratory phenomena, but statistical generalisation must be limited.

Stratified sampling divides a population into relevant subgroups and samples within each. It is useful when important groups differ or when small groups must be represented. Quota sampling also seeks subgroup numbers but does not necessarily select participants randomly within each subgroup. This distinction affects the strength of inference.

For a proportion estimated from a simple random sample, the approximate standard error is:

SE(p̂) = √[p̂(1 − p̂) / n]

Here, p̂ is the sample proportion, n is sample size, and the expression assumes independent observations and a probability sample with an appropriate analysis. The formula describes sampling variability; it does not correct coverage bias, non-response bias or poor measurement. For a 50% proportion with a sample of 400, the approximate standard error is √[0.5 × 0.5 ÷ 400] = 0.025, or 2.5 percentage points. A conventional approximate 95% margin of error would be about 1.96 × 0.025 = 4.9 percentage points, under the stated assumptions. Commercial samples and quota samples should not automatically be assigned this interpretation.

Sample size and saturation

Quantitative sample size depends on desired precision, population variability, confidence level, design effect, subgroup analysis and resources. A larger sample does not remove systematic bias. Qualitative sample size is commonly guided by information power or saturation: recruitment may stop when additional interviews produce little new conceptual insight. Saturation is not a mechanical guarantee and depends on sample diversity, question scope and analytic quality.

Researchers should record eligibility criteria, recruitment sources, screening decisions, exclusions, completion rates and demographic composition. These details make limitations visible.

4. Qualitative Insight Methods

Observation

Observation records behaviour in context rather than relying solely on retrospective accounts. It may be structured, using a predefined coding schedule, or unstructured, allowing researchers to document unexpected events. It can be overt, where participants know they are observed, or covert, although covert observation raises serious ethical concerns.

Observation is valuable for studying customer journeys, retail navigation, product use, service encounters and social interaction. It can reveal workarounds, hesitation, sequence errors and environmental cues that participants forget or consider too ordinary to mention. Researchers should distinguish description from interpretation. “Participant looked at three shelves and returned the first product” is observation; “participant lacked confidence” is an interpretation requiring supporting evidence.

Limitations include observer effects, selective attention, limited access to private behaviour and difficulty inferring motives. Video, mobile diaries or digital trace data can extend observation, but they increase privacy and data-security responsibilities.

In-depth interviews

An interview is a purposeful conversation designed to understand experiences, meanings, motivations and decision processes. Semi-structured interviews use a consistent topic guide while allowing probing. Strong questions invite concrete examples: “Tell me about the last time…” is generally more useful than “Do you value convenience?”

A sound guide typically progresses from easy contextual questions to behaviour, interpretation, emotions, brand associations and future possibilities. Probes such as “What happened next?”, “Why was that important?” and “Can you give an example?” deepen evidence. Leading questions, jargon, double-barrelled questions and premature evaluation should be avoided.

Interview data are co-produced by participant and researcher. The interviewer’s identity, assumptions, tone and reactions may influence responses. Reflexive notes should record these influences. Analysis may involve transcription, coding, comparison across cases, theme development and disconfirming-case analysis. Themes should be supported by multiple extracts or observations rather than selected quotations alone.

Focus groups

A focus group uses guided group discussion to explore shared language, social norms, disagreement and reactions to concepts. Interaction is the central resource: participants may remind one another of experiences or reveal how opinions are socially negotiated.

Groups should be composed thoughtfully. Excessive status differences, such as mixing senior professionals with junior employees, may inhibit discussion. Homogeneity on relevant characteristics can support openness, while variation can generate contrast. The moderator must balance participation, prevent domination and avoid treating consensus as truth.

Focus groups are not miniature surveys. The number of people agreeing in a group cannot estimate population prevalence. They are also unsuitable for highly sensitive topics unless safeguards and alternative methods are available.

Ethnography and contextual research

Ethnography studies behaviour, meaning and practices in cultural context, often through extended immersion, participant observation, interviews and artefact analysis. Commercial ethnography may be shorter and more focused, but it should retain attention to routines, roles, material environments and social norms.

Ethnographic thinking asks what people do repeatedly, what objects and spaces enable behaviour, which rules remain unspoken, and how identity is expressed through consumption. It is especially useful for understanding food preparation, family purchasing, technology adoption, workplace practices and service ecosystems.

Its limitations include cost, access, researcher subjectivity and the difficulty of separating context-specific insight from broader patterns. The value of ethnography is not that it produces a statistically representative miniature society; it produces contextual explanation and can reveal opportunities overlooked by direct questioning.

5. Quantitative Methods: Surveys and Experiments

Survey research

Surveys standardise questions so that responses can be compared across participants. They are appropriate for estimating awareness, usage, attitudes, satisfaction, incidence and relationships among measured variables.

Question wording strongly affects results. Researchers should define the reference period, specify the object being rated, avoid assumptions, use balanced response options and distinguish “not applicable” from “don’t know.” A question such as “How satisfied are you with our excellent delivery service?” is leading. A clearer version is: “Thinking about your most recent order, how satisfied or dissatisfied were you with delivery?”

Scales must match the construct. Frequency, agreement, importance, likelihood and satisfaction are not interchangeable. A multi-item scale can represent a construct more reliably than a single item, but additional items do not guarantee validity. Researchers should test comprehension, ordering effects, survey length, mobile display and response burden through pilot testing.

Common survey errors include coverage error, non-response, acquiescence, social desirability, recall error, straight-lining and order effects. Weighting can improve alignment with known population characteristics, but it cannot fully repair biased recruitment or invalid measures.

Experiments and causal inference

An experiment manipulates an independent variable, observes an outcome and compares conditions while controlling or randomising other influences. For example, participants may be randomly assigned to a traditional or sustainability-focused advertisement, then report brand trust or choose between simulated products.

Random assignment makes groups comparable on average before treatment. A basic causal contrast is:

ATE = E[Y | T = 1] − E[Y | T = 0]

Here, ATE is the average treatment effect, Y is the outcome, T = 1 identifies the treatment condition, T = 0 identifies the control condition, and E denotes the expected or average value. The interpretation requires valid randomisation, consistent treatment implementation, an outcome measured before external contamination, and an appropriate comparison. In a simple experiment, the difference between sample means estimates the treatment effect, but uncertainty and design quality must also be assessed.

Internal validity concerns whether the treatment caused the observed difference. Threats include unequal attrition, non-compliance, demand characteristics, contamination and concurrent events. External validity concerns whether results transfer to other people, contexts, times and real purchasing conditions. A highly controlled online experiment may have strong internal validity but limited realism.

Experiments can test message framing, price presentation, packaging, recommendation interfaces and service features. However, intention or click behaviour may not equal purchase, and short-term effects may not predict long-term brand equity.

6. Validity, Reliability and Quality Evaluation

Reliability concerns consistency. A measure is more reliable when it produces stable results under consistent conditions. Test–retest reliability examines stability over time; inter-coder reliability examines agreement between analysts; internal consistency examines whether items intended to measure one construct behave coherently. Reliability is necessary but not sufficient for validity: a scale can consistently measure the wrong thing.

Validity concerns whether evidence supports the intended interpretation. Important forms include:

  • Face validity: whether a measure appears reasonable to informed reviewers; useful but weak evidence.
  • Content validity: whether the measure adequately covers the construct’s relevant dimensions.
  • Construct validity: whether relationships with other variables behave as theory predicts.
  • Criterion-related validity: whether scores relate to an appropriate external criterion.
  • Internal validity: whether a causal conclusion is justified within the study.
  • External validity: whether findings transfer beyond the study conditions.

Qualitative quality is often assessed through credibility, dependability, confirmability and transferability. Practices include triangulation across methods or sources, transparent coding, reflexivity, participant clarification where appropriate, negative-case analysis and a clear audit trail.

Researchers should avoid overstating evidence. A correlation between perceived authenticity and purchase intention does not establish that authenticity causes purchase. Self-reported intention is not equivalent to observed behaviour. A memorable quotation does not establish prevalence. A significant statistical result does not automatically imply managerial importance.

7. An Integrated Insight Process

A practical brand insight process can be organised as follows:

  1. Frame the decision. State the action, stakeholders, constraints and consequences of being wrong.
  2. Audit existing evidence. Review sales, service data, social listening, prior research, competitor activity and customer feedback.
  3. Define the population and constructs. Specify who matters and what concepts require investigation.
  4. Develop research questions. Separate exploratory, descriptive, causal and evaluative questions.
  5. Choose a design. Select qualitative, quantitative, experimental or mixed methods according to the decision.
  6. Plan sampling and recruitment. Define inclusion criteria, quotas or selection probabilities and safeguards against bias.
  7. Pilot instruments and procedures. Test comprehension, timing, technology, moderator prompts and coding rules.
  8. Collect evidence ethically. Obtain consent, protect confidentiality and monitor deviations from the plan.
  9. Analyse systematically. Use thematic comparison for qualitative data and appropriate descriptive or inferential analysis for quantitative data.
  10. Triangulate and challenge. Compare methods, seek disconfirming evidence and distinguish fact from interpretation.
  11. Translate findings into choices. Specify the audience, tension, implication, recommended action and confidence level.
  12. Measure consequences. Track whether the action changes relevant behaviour, experience or brand outcomes.

An insight report should make the reasoning visible. It should connect each recommendation to evidence, identify assumptions, state what remains unknown and explain how success will be monitored.

8. Illustrative Case: Repositioning a Ready-to-Drink Tea Brand

Background

The fictional brand “Verdant Tea” has strong awareness but declining purchase among urban consumers aged 18–30. Management believes that the brand appears old-fashioned and proposes a visually modern campaign.

Problem

The initial proposal assumes that modern design is the main barrier. The research problem is broader: what perceptions, usage occasions and competitive alternatives explain reduced relevance, and which positioning could increase consideration without alienating existing users?

Approach

The team begins with an evidence audit of sales by age and channel, customer comments and competitor activity. It conducts 20 semi-structured interviews with current, lapsed and non-users, followed by mobile observation diaries covering purchase and consumption occasions. Analysis identifies a tension: younger consumers associate the brand with health and trust, but regard it as unsuitable for social occasions because its flavour and packaging signal solitary daytime consumption.

A survey of 800 category buyers measures the prevalence of these perceptions and compares segments by occasion, brand familiarity and purchase frequency. Because recruitment is quota-based online, the report describes the sample as a sample of surveyed category buyers rather than claiming a probability estimate for all young adults.

Finally, a randomised concept experiment compares three propositions: heritage and purity, functional refreshment, and social discovery. Participants view one concept and rate distinctiveness, credibility, relevance and choice likelihood. A behavioural follow-up asks participants to select a simulated product for a planned occasion. The social-discovery concept improves relevance, but the purity claim remains important for credibility. The recommended platform therefore combines trusted tea quality with sociable flavour exploration rather than replacing heritage entirely.

Outcome

The brand launches limited social-use flavours with contemporary packaging while retaining quality cues. A controlled regional rollout compares sales, repeat purchase and brand associations with matched areas. The research does not prove that the campaign alone will create long-term growth, but it provides a defensible explanation, a testable intervention and measures for learning.

Learning points

The case demonstrates that insight is not a demographic stereotype such as “young consumers want modern brands.” It is a contextual explanation of a tension between trust and social relevance. It also shows why qualitative exploration, quantitative estimation and experimentation answer different questions and should not be treated as interchangeable.

9. Ethics, Privacy and Contemporary Practice

Ethical research requires informed consent, voluntary participation, the right to withdraw, minimisation of harm, fair incentives and secure handling of personal data. Participants should understand the purpose, procedures, risks, recording arrangements and intended uses of their information. Special care is required with children, vulnerable groups, sensitive health or financial data and research conducted in private settings.

Researchers must distinguish public availability from ethical permission. A public social-media post may still contain identifiable or sensitive information. Data should be collected for specified purposes, retained only as long as justified, access-controlled and de-identified where possible. Local privacy and data-protection laws, institutional rules and professional codes must be followed.

Artificial intelligence can assist transcription, coding, survey programming, synthetic stimulus generation and pattern detection. It can also reproduce bias, hallucinate themes, expose confidential data or conceal interpretive decisions. Human researchers remain responsible for consent, data governance, validation, contextual interpretation and disclosure of AI use. AI-generated summaries should be checked against source material, and participants’ confidential data should not be entered into unapproved systems.

Contemporary research increasingly combines behavioural data, digital experimentation, communities, passive measurement and real-time feedback. These sources can improve ecological relevance but may create surveillance concerns and weak transparency. More data does not automatically mean better insight; the central test remains whether evidence is relevant, trustworthy and actionable.

Challenges and Limitations

No research design eliminates uncertainty. Common limitations include:

  • Coverage and recruitment bias: accessible participants may differ from the target population.
  • Self-report limitations: people forget, rationalise or present themselves favourably.
  • Context effects: a laboratory, interview or survey may not reproduce ordinary behaviour.
  • Researcher influence: wording, moderation, coding and interpretation shape results.
  • Commercial pressure: stakeholders may selectively report favourable findings.
  • Small subgroup evidence: apparent patterns may be unstable or anecdotal.
  • Method mismatch: a method may answer a different question from the one management needs answered.
  • Overclaiming: exploratory findings may be presented as population facts or causal proof.
  • Time and budget constraints: rapid studies may trade depth, representativeness or follow-up.

Professional judgement involves making these trade-offs explicit rather than pretending they do not exist. A limitation is not necessarily a reason to reject research; it is a condition on how findings should be used.

Best-Practice Checklist

Before approving an insight study, ask:

  1. Is the decision clearly stated?
  2. Are the research questions neutral, answerable and prioritised?
  3. Does the sample match the population relevant to the decision?
  4. Is the selected method capable of answering each question?
  5. Have instruments and procedures been piloted?
  6. Are alternative explanations considered?
  7. Are reliability, validity or qualitative credibility addressed?
  8. Are consent, privacy, safety and data retention managed appropriately?
  9. Does the report distinguish evidence, interpretation and recommendation?
  10. Is there a plan to test whether the recommended action works?

Chapter Summary

Consumer and brand insight research transforms evidence into decision-relevant understanding. The process begins by separating a management decision from the research problem and by defining the population, uncertainty and intended use of findings. Exploratory, descriptive, diagnostic, causal and evaluative questions require different designs.

Qualitative methods—observation, interviews, focus groups and ethnography—reveal meanings, contexts, language and social processes. Surveys provide standardised breadth, while experiments offer stronger evidence about causal effects when randomisation and implementation are sound. Sampling quality depends on population definition, coverage, selection and response, not simply sample size.

Reliability concerns consistency; validity concerns the defensibility of interpretation. Qualitative credibility requires transparency, reflexivity and triangulation. All methods have limitations, including bias, artificiality, self-report error and researcher influence. Ethical practice requires informed consent, privacy protection, secure data management and responsible use of technology and AI.

The strongest brand insight programmes integrate methods, challenge assumptions, state uncertainty and connect recommendations to measurable action. Insight is therefore not merely a finding; it is a credible explanation of consumer behaviour that enables better brand choices.

Key Terms

Brand insight: An evidence-based, decision-relevant understanding of consumer behaviour or motivation.

Management problem: A business decision or action requiring resolution.

Research problem: The knowledge uncertainty that research is designed to address.

Target population: The complete group to which findings are intended to relate.

Sampling frame: The operational list or access route used to identify potential participants.

Probability sampling: Sampling in which eligible units have known, non-zero selection probabilities.

Non-probability sampling: Sampling in which selection probabilities are unknown.

Observation: Systematic recording of behaviour, interaction or context.

In-depth interview: A guided individual conversation exploring experience and meaning.

Focus group: A moderated group discussion used to study interaction and shared language.

Ethnography: Contextual study of practices, culture and behaviour in natural settings.

Survey: A standardised instrument for collecting comparable responses.

Experiment: A design involving manipulation and comparison to assess causal effects.

Reliability: The consistency or stability of a measure or procedure.

Validity: The extent to which evidence supports the intended interpretation.

Internal validity: The credibility of a causal conclusion within a study.

External validity: The extent to which findings transfer to other contexts.

Triangulation: Comparing evidence from multiple methods, sources or analysts.

Sampling bias: Systematic distortion caused by unequal or inappropriate inclusion in a sample.

Research ethics: Principles governing consent, welfare, privacy, fairness and responsible conduct.

Review Questions

Short Answer Questions

  1. Distinguish a management problem from a research problem.
  2. What is the difference between a target population and a sampling frame?
  3. State two strengths and two limitations of focus groups.
  4. Explain why reliability does not guarantee validity.
  5. What is the purpose of random assignment in an experiment?

Long Answer Questions

  1. Explain the stages of an integrated consumer and brand insight process.
  2. Compare interviews, observation, ethnography and focus groups as methods for discovering consumer motivations.
  3. Discuss the main sources of error in survey research and how they can be reduced.
  4. Explain internal validity and external validity, using brand research examples.
  5. Discuss how ethical and privacy responsibilities affect contemporary consumer research.

Analytical / Application Questions

  1. A snack brand wants to understand why trial is high but repeat purchase is low. Design a mixed-method research programme, including research questions, sampling, methods and expected outputs.
  2. A quota-based online survey reports that 68% of respondents prefer a new brand concept. Explain what can and cannot be concluded, and identify additional evidence needed before launch.
  3. A controlled experiment finds that a sustainability message increases stated purchase intention but reduces perceived product performance. Analyse the result and recommend how the brand should proceed.

Multiple Choice Questions with Answers

Question 1

Which statement best distinguishes a research problem from a management problem?

A. A research problem identifies the knowledge needed to support a decision.

B. A research problem is always expressed as a sales target.

C. A research problem is limited to statistical analysis.

D. A research problem is the final advertising execution.

Correct Answer: A. A research problem identifies the knowledge needed to support a decision.

Question 2

Which method is most directly suited to observing customer workarounds in a retail environment?

A. Observation

B. A telephone survey only

C. A pricing experiment only

D. A brand awareness tracker only

Correct Answer: A. Observation

Question 3

What is a major strength of probability sampling?

A. It guarantees a large sample.

B. It gives eligible units known, non-zero selection probabilities.

C. It eliminates all non-response.

D. It requires no sampling frame.

Correct Answer: B. It gives eligible units known, non-zero selection probabilities.

Question 4

A measure can be reliable but invalid when it:

A. Produces consistent results while measuring the wrong construct.

B. Produces different results every time.

C. Uses more than one question.

D. Has been pilot tested.

Correct Answer: A. Produces consistent results while measuring the wrong construct.

Question 5

What is the primary purpose of random assignment in an experiment?

A. To ensure every participant receives the treatment.

B. To make treatment groups comparable on average before treatment.

C. To increase the survey response rate.

D. To guarantee external validity.

Correct Answer: B. To make treatment groups comparable on average before treatment.

Question 6

Which question is most appropriate for exploratory interviewing?

A. Do you agree our brand is convenient?

B. Would you rate the advertisement 8 out of 10?

C. Tell me about the last time you chose a product in this category.

D. Which of these three slogans is best?

Correct Answer: C. Tell me about the last time you chose a product in this category.

Question 7

For a sample proportion of 0.50 and sample size of 400, the approximate standard error is:

A. 0.0025

B. 0.025

C. 0.25

D. 2.5

Correct Answer: B. 0.025

Question 8

Which conclusion is most justified by a focus group?

A. Exactly 40% of the population holds a particular view.

B. The interaction reveals language and social meanings that merit further investigation.

C. The group proves that one advertisement caused purchase.

D. The group is statistically representative by definition.

Correct Answer: B. The interaction reveals language and social meanings that merit further investigation.

Question 9

Which practice most directly supports qualitative credibility?

A. Selecting only quotations that support the preferred recommendation.

B. Avoiding documentation of analytic decisions.

C. Using triangulation and examining disconfirming cases.

D. Increasing the number of closed-ended questions.

Correct Answer: C. Using triangulation and examining disconfirming cases.

Question 10

An experiment reports an average treatment effect of 0.08 on a purchase-intention scale. This result primarily represents:

A. The average difference in outcomes between treatment and control conditions under the study design.

B. The percentage of the entire population that will purchase.

C. The reliability coefficient of the scale.

D. The response rate of the experiment.

Correct Answer: A. The average difference in outcomes between treatment and control conditions under the study design.

Consumer Behaviour & Brand Insights
Chapter 10 of 14