Recruitment criteria

Think of your study participants as representatives of your primary target audience. What are the characteristics that your primary target audience exhibits? You may not need to look for all these characteristics in your study participants — just the ones relevant to your current study will do.

Examples of selection criteria include age group, geographical location, and any specific experience participants should or should not have. Include both mainstream and extreme users in your study to cover the broad spectrum of your users.^[1]

Remember that the more specific your criteria, the harder it will be to find participants who check all boxes. So, make sure you ascertain the necessity of each criterion.