Selection Bias or Response Bias?
(Click on either title below.)

Marcy wants to know the favorite food of 8th grade students in her school, so she surveys all students in the pizza line in the school cafeteria.

Correct!
Incorrect!

Sheree wants to know how many students in her school have bullied other students, so she asked, “Are you a school bully?”

Correct!
Incorrect!

Emilia wants to know how many people in her neighborhood would use the library, so she surveys every 4th person leaving the library.

Correct!
Incorrect!

Abraham wants to know how many people support Mrs. Sanchez for School Board, so he surveys Mrs. Sanchez’s friends and family.

Correct!
Incorrect!

Terrell wants to know how many students like the length of school lunch, so he asks, “Are you satisfied, dissatisfied, or very dissatisfied with the length of lunch?”

Correct!
Incorrect!

Ricardo wants to know how many students at Johnston Middle School want to take Ceramics class, so he surveys 50 randomly selected 8th grade students.

Correct!
Incorrect!

Well Done!

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Selection Bias
Response Bias