12. Lesson 2(DOT)5(COLON) Observational studies and experiments

Lesson Focus — Quiz

Test your understanding of lesson focus with 5 practice questions.

Practice Questions

Question 1

What is the main difference between an observational study and a designed experiment?

Question 2

Which of the following best describes an explanatory variable?

Question 3

What is the role of a control group in an experiment?

Question 4

What is meant by 'correlation does not imply causation'?

Question 5

What is a lurking variable?