“Small-business owners” sounds like a target audience until the study concerns payroll. Some owners run payroll themselves, some delegate it and others have no employees. A sample that fits the description can still contain few people with the experience the research needs.
A target audience is the group a product, message or study is intended to address. For research, defining it makes clear whose experience the question concerns and where the eventual findings should apply.
Describe relevance in terms the study can check
In a fictional payroll study, the useful criteria might include responsibility for submitting payroll, recent experience and the type of organisation involved. Age or company size may also matter, but only where there is a reason to include them. Behavioural criteria and demographic context serve different purposes; neither should be added automatically.
Distinguish the product’s overall market from the audience for a particular study. Research into first-time setup may need new administrators, while a study of annual reporting may need experienced users. A finding about one group should not silently become a statement about everyone.
The Home Office’s participant-recruitment guidance begins with defining who the research needs to include. Convert the definition into recruitment criteria and screener questions that people can answer accurately.
Include variation that could change the experience
Consider relevant roles, access needs, devices, experience levels and circumstances. In payroll, an occasional user working from paper records may encounter different demands from a specialist using integrated systems. Decide whether the study needs to compare those experiences or focus deliberately on one.
Exclusions need a reason too. Excluding all researchers or marketers may remove legitimate users from a study of a product they actually use. Apply criteria because of the research question or a specific conflict, not because a standard recruitment template includes them.
End-user research is especially useful where buyers and everyday users differ. Study each role on its own terms rather than assuming the commercially reachable person represents the whole account.
Keep the intended audience separate from the achieved sample
Recruitment may fail to reach some groups, and some eligible people will choose not to participate. Compare the actual sample with the intended audience and explain important gaps. A precise definition improves recruitment, but does not guarantee that the resulting participants represent it statistically.
A representative sample requires evidence appropriate to the claims being made. For a focused qualitative study, the priority may instead be relevant experience and a reasoned range of cases.
The audience definition should remain visible in the findings: who was studied, why they were included and which decisions their experience can inform. That boundary makes the research more useful by preventing readers from applying a sound finding to a different group without thinking through the difference.