Lung Cancer Cause Video

One of the biggest problems in trying to prove cause and effect is?

• Response Bias

• Wording of Questions

• Correlation Coefficient

• Lurking Variables

A treatment is used in experiments to:

• get ice cream.

• be tested to see its effects.

• see if there is a correlation.

• verify the explanatory and response variable

Which of the following experiments would be considered "ethical?"

• Making kids smoke cigarettes to test if cigarette smoking causes cancer.

• Making people go to different religions to test which ones make people happier.

• Making people eat apples to test the theory "An apple a day keeps the doctor away."

• Making people text and drive to see if texting really causes people to drive more poorly.

When did smoking become widespread in the U.S.?

• 1850s - 1870s

• 1870s - 1890s

• 1900s - 1910s

• 1920s - 1940s

As cigarette sales increased, what also increased, raising a positive correlation between the two?

• The amount of lung cancer cases

• The amount of cheetos sold

• The amount of restaurants

• The amount of video games sold

What is a retrospective study?

• A cool study, man.

• A study that looks at current behavior

• A study that looks at future behavior

• A study that looks at past behavior

What was not considered a lurking variable that may have been a cause of lung cancer?

• genetics

• pollution

• types of clothes

What is a prospective study?

• A cool study, man.

• A study that looks at current behavior

• A study that looks at future behavior

• A study that looks at past behavior

How do we test for the effect of one variable on the experimental group?

• Have the control group and experimental group have in common all other variables.

• Have the control group and experimental group have nothing in common.

Can you prove causation by doing observational studies?

• No, only experiments can show causation. Observational studies are used to see patterns, associations and causations.

• Yes (don't choose this)