Selection bias
Seçilim yanlılığıReading progress stays in this browser only and is removed when you clear site data.
What does it mean?
Selection bias occurs when inclusion or retention in a study systematically distorts the target estimate.
Think through an example.
An everyday example
You ask only regular campus-café visitors about satisfaction, potentially excluding people who stopped coming because they were unhappy.
Test your understanding.
True or false?
Selection bias necessarily disappears as sample size grows.
Make the next connection
Explore related concepts to deepen your understanding.
Put this knowledge into practice.
Practice with short steps in related tools, then test yourself.
Sources and further reading
Explore the foundations and methodological details in these resources. Examples on this page were created for illustration.
- Catalog of Bias Source in EnglishSelection bias