Concept Testing Questions: What to Ask and Why Each Item Matters

Concept testing questions are the specific measurement items used to evaluate consumer response to a new product, communication, or brand concept. They are the operational layer of concept test research: the items that translate the commercial decision being made into the specific data points the research needs to generate, and that determine whether the concept test produces the consumer evidence needed to make that decision confidently or simply generates numbers that appear authoritative without genuinely informing the choice.

Getting concept testing questions right is one of the most commercially significant research design decisions in the innovation process. Poorly designed questions produce data that is systematically biased toward specific concepts, misrepresents the consumer's genuine response, or fails to capture the specific dimensions of consumer reaction most relevant to the development decision.

The Core Concept Testing Question Battery

Purchase intent is the primary concept test question and the metric most directly predictive of commercial performance. The standard format presents the concept and asks: "If this product were available at [price point], how likely would you be to purchase it?" The response scale runs from definitely would not buy to definitely would buy, typically on a five-point format.

The specific wording of the purchase intent question matters considerably. Including the price point in the question stem produces more ecologically valid responses than asking for purchase intent without price context, because real purchase decisions are made in the context of a specific price. Asking about likelihood to purchase "the next time you are in the market for this type of product" anchors the response to a specific usage occasion rather than an abstract future scenario, producing responses that are more behaviourally relevant.

The top-two-box score, the percentage of respondents selecting the two most positive response options, is the standard reporting metric for purchase intent and the figure most commonly compared against internal performance norms. Research teams should also report the full distribution of responses across all five points, not just the top-two-box, because the distribution provides diagnostic information about the intensity and polarisation of consumer response that the top-two-box score alone does not capture.

Overall concept appeal is the second core concept test question. The standard format asks: "How would you rate the overall appeal of this concept?" on a five-point scale from not at all appealing to extremely appealing. Appeal is measured separately from purchase intent because some consumers who find a concept appealing will not purchase it due to price, relevance, or category barriers that are separate from their genuine appreciation of the concept idea.

Differentiation measures how unique the consumer perceives the concept to be relative to existing alternatives. The standard format asks: "Compared to other products currently available, how different is this concept?" on a five-point scale from not at all different to very different.

Relevance or need fit captures how well the concept addresses a genuine consumer need. The standard format asks: "How well does this product address a need you have?" on a five-point scale from not at all to extremely well.

Diagnostic Concept Testing Questions

Diagnostic questions go beyond the headline metrics to identify the specific elements of the concept that are driving consumer response, both positive and negative. They are the questions that transform a concept test from a pass or fail verdict into a strategic direction for concept optimisation.

Likes and dislikes questions ask consumers to identify what they find most appealing and least appealing about the concept. The standard format uses open-ended text responses rather than closed lists of possible responses: "What do you like most about this concept?" and "What do you like least?" The open-ended format captures the consumer language and the specific elements that are most salient in the consumer's response, which a closed list would constrain to the elements the research team anticipated rather than the elements that genuinely drive the consumer's reaction.

Believability questions assess whether the claims made in the concept are perceived as credible by consumers. Concepts that promise benefits that seem too good to be true will generate low believability scores that suppress purchase intent even when the underlying product idea is genuinely appealing. The standard format asks: "How believable do you find the claims made in this concept?" on a five-point scale.

Concept comprehension questions verify that consumers have understood the core product idea as intended. Comprehension failures, where consumers misunderstand what the product does or who it is for, can produce low purchase intent scores that reflect misunderstanding rather than genuine lack of appeal. The standard format uses open-ended recall questions: "In your own words, what is this product and what does it do?" The verbatim responses reveal whether the concept is communicating the intended message or generating misinterpretation.

Price sensitivity questions measure how purchase intent changes at different price points. The standard format presents the concept at multiple price points and measures purchase intent at each, either through separate sample cells for different prices in a monadic design or through the Van Westendorp price sensitivity questions that identify the acceptable price range without directly asking about specific price points.

Question Sequencing in Concept Tests

The sequencing of concept testing questions affects the data quality and the validity of each measure. The standard sequence places purchase intent and appeal questions before any diagnostic probing, ensuring that the headline metrics are captured before the diagnostic questions sensitise respondents to specific aspects of the concept that might alter their overall evaluations.

Comprehension questions should appear before evaluation questions when the concept is sufficiently complex that comprehension cannot be assumed. Evaluating consumer response to a concept they have misunderstood produces invalid performance data that neither accurately reflects the concept's commercial potential nor provides useful guidance for optimisation.

Open-ended questions are most productive when placed immediately after the specific metric they are designed to diagnose. An open-ended likes and dislikes question placed immediately after the purchase intent question captures the consumer's spontaneous reasoning about their purchase likelihood before the subsequent questions frame their response in ways that might alter it.

Wrapping Up

Concept testing questions are the measurement infrastructure that determines whether a concept test produces consumer evidence that can genuinely inform innovation decisions. The core battery, covering purchase intent, appeal, differentiation, relevance, and diagnostic diagnostics, combined with appropriate sequencing and open-ended diagnostic depth, is the standard that brand research teams should apply to every concept test they commission or design.

For the complete concept testing framework, the pillar on concept testing covers the full landscape.

Related reads: Concept Testing: A Complete Guide for Brand Teams | Concept Testing Survey: How to Design the Measurement Instrument | Concept Testing Research: The Methodological Framework