UX Research vs Market Research

UX research studies how people use and experience a product so the design can be fixed. Market research falls within what the ICC/Esomar International Code (2025 edition, definitions) calls research: "the systematic gathering, analysis and interpretation of information about individuals and organisations", using methods from the applied sciences "to generate insights and support decision-making". ESOMAR is the global body for the research industry.

In practice, market research asks who the customer is, how big the opportunity is and what they will pay. UX research asks whether a specific person can finish a specific task, and where they stumble.

Match the decision to the research type first, then pick the method and the recruit. This table is built for a brief. For qualitative sizes, see the sample size guide.

Two decisions, two recruits, two sample sizes

Pick by the first column. If two rows fit, you have two decisions and need two screeners.

The label matters less because both fields use the same methods; what matters is whether the decision needs what people say (demand, preference) or what they do (task success). Attitudinal research records what people say, and behavioural research records what they do; the two often differ, as Nielsen Norman Group (NN/g)'s guide to attitudinal and behavioural research explains. Its map of 20 UX methods places methods on that split whether they are qualitative or quantitative.

So "UX is qualitative, market is quantitative" is wrong. Both use both. The Interaction Design Foundation (IxDF) makes the same point: the tools are shared, the aims differ. If your question is "will they buy", a stated answer is a start. If it is "can they use it", you need to watch them. For the wider choice, see qualitative vs quantitative research.

For a payments app in three cities and two age bands, usability testing needs 18 to 24 sessions across the six groups and the demand survey needs 2,310 completes. This is a worked model, not an official figure.

• Survey. To estimate a share within ±5 percentage points at 95% confidence, use n = z² × p × (1 − p) ÷ e², with z = 1.96, p = 0.5 (the worst case) and e = 0.05. That gives 1.96² × 0.25 ÷ 0.0025 = 384.2, rounded up to 385. Three cities × two age bands = 6 groups, and 6 × 385 = 2,310. It assumes a random sample and a ±5% margin in each group separately.
• Usability. NN/g (3 June 2012) recommends about 5 users for a qualitative usability study and 3-4 per group when user groups differ markedly. Six groups at 3-4 each gives 18-24 sessions.

The two answer different questions, so this is a contrast, not a trade-off. NN/g's same article says a quantitative usability study needs at least 20 users.

Three terms muddy the picture:

• User research is the wider label, and UX research sits inside it.
• Usability testing, often searched as "user testing", is one UX method: watching people attempt tasks. See remote usability testing.
• Consumer or customer research is usually market research on buyers, who may never touch your product.

Write the decision at the top of the brief, then test your screener against it. Use three tests.

1. Person test. Does the screener name who the decision is about? Pass: it asks for recent product use (for example, in the last month) for a UX decision, or category purchase for a demand decision. Fail: it asks only age and city.
2. Split test. Pass: each decision has its own screener or quota (a fixed number of respondents required per group). Fail: one screener serves both.
3. Size test. Pass: the sample matches the question, as in the table. Fail: 10 interviews are reported as "market size".

The research screener template and market research brief cover both.

Qualfacto recruits for and arranges the qualitative side of both, run by Qualfacto or by research partners depending on the project: usability and app testing, in-depth interviews, focus groups, diary studies and shop-alongs. For each it recruits by city, targets by household and demographic profile, checks participant identity before inviting, arranges sessions in languages other than English, and can supply moderators. Its in-depth interview guide shows how it plans one.

A 2,310-complete survey is separate work from the qualitative fieldwork. Pricing is a tailored proposal for each study, and a free pilot is offered. Replies aim to arrive within one business day, Monday to Friday, 10:00 to 18:00 India Standard Time (IST). Use email for briefs and WhatsApp for quick queries. Email your brief to support@qualfacto.io.