Unit 4: Confounding/Lurking Variables

Variable that may not be seen, but is a variable that has an important effect on the relationship between the explanatory & response variables.

• Confounding

• Lurking

• Explanatory

• Response

Tags

CCSS.HSS.ID.C.9

Which word matches the following definition? A correlation between variables that one variable directly effects the other variable

• lurking

• confounding

• causation

• common response

Tags

CCSS.HSS.ID.C.9

The following image reflects which type of relationship?

• Causation

• Lurking

• Common response

• Confounding

The following image reflects which type of relationship?

• Causation

• Lurking

• Common Response

• Confounding

The following image reflects which type of relationship?

• Causation

• Lurking

• Common Response

• Confounding

The following image reflects which type of relationship?

• Causation

• Lurking

• Common Response

• Confounding

There's a positive association between ice cream sales and the number of people who drown. Does that mean eating ice cream causes people to drown?

• Yes, one clearly causes the other

• No, there are other lurking variables causing a common response

• No

• Yes

Tags

CCSS.HSS.ID.C.9

A study found that the correlation coefficient between SAT scores and college grades was r = 0.52. Does this mean that your score on the SAT causes your college grades?

• Yes, that's a moderate positive correlation, so SAT scores cause college grades.

• Yes

• No, common response shows that such lurking variables as academic ability, study habits, etc. also affect college grades

• No, that's a moderate positive correlation, so SAT scores can't cause college grades.

Tags

CCSS.HSS.ID.C.9