A multi-market study needs more than participants in several countries.
It needs a shared understanding of what makes someone suitable, and enough consistency to understand who has actually been recruited in each market.
The sourcing routes may differ. The agreed requirements should not quietly change.
“Regular player”, “competitive” and “recently lapsed” leave room for interpretation.
Agree the underlying behaviour: relevant titles or modes, frequency, timeframe and any experience essential to the study.
Where the research genuinely requires different definitions by market, document those differences. They should be deliberate research decisions.
Otherwise, a full quota can conceal a different audience.
Local recruitment may need different channels, incentives, scheduling and communication.
Time zones, travel expectations and available platforms can affect the practical plan. Language requirements also need to be explicit, including the level needed for the research activities.
Consistency means applying the agreed standard fairly within that context. It does not require every applicant to encounter identical wording or logistics.
Set out what each market needs to establish, which follow-up questions are appropriate and when supporting evidence is required.
A shared assessment guide helps teams distinguish a genuine eligibility concern from a difference in terminology or communication style.
Speaking more confidently should not become a substitute for demonstrating relevant experience.
If local conditions make a requirement difficult to meet, raise it with the research team rather than relaxing it without agreement.
Report progress and participant suitability using consistent categories. Explain any approved departures from the original specification.
This gives researchers a clearer basis for understanding the sample, including its limitations.
Consistent recruitment standards support the study. It does not, by itself, make samples representative or findings comparable.