Participant Recruitment and Sampling Questions

Covers strategies and operational practices for identifying, sourcing, and managing research participants to produce valid, representative samples. Topics include defining inclusion and exclusion criteria, screener design to avoid bias, quota and probability sampling approaches, recruiting channels such as internal panels, external vendors, and community outreach, incentive structures and ethical compensation, participant quality control and retention, panel and vendor management at scale, managing diversity and representativeness across concurrent studies, and articulating how recruitment limitations may influence findings. Practical skills assessed include designing recruitment plans, estimating sample needs, mitigating selection bias, balancing speed and quality, and explaining trade offs when scaling participant operations.