Summary: Rigorous selection criteria protect study validity. Learn how to define inclusion, exclusion, and diversity criteria to avoid costly misrecruits.

Great research starts with choosing the right people. This article explains how to define clear selection criteria that go beyond demographics, so you recruit participants who can actually help you answer your research questions and avoid costly misrecruits.

Why Selection Criteria Matter

The Cost of Recruiting the Wrong Participants

Move Beyond Demographics

The Three Types of Selection Criteria

Key Takeaways for Successful Recruitment

Why Selection Criteria Matter

Imagine you are running study to research a new fitness tool. You’ve written a flawless research plan , your tasks are ready, and you’ve recruited some people to participate.…