Correlation

Title

ABC/123 Version X

1

Correlation Worksheet

PSYCH/625 Version 5

1

Question

Answer

Draw a scatterplot of each of the following:

· A strong positive correlation

· A strong negative correlation

· A weak positive correlation

· A weak negative correlation

Give a realistic example of each.

Shonda

What is the meaning of the p value of a correlation coefficient?

Why is it important to know the amount of shared variance when interpreting both the significance and the meaningfulness of a correlation coefficient?

Bonita

If a researcher wanted to predict how well a student might do in college, what variables do you think he or she might examine? What statistical procedure would he or she use?

Donette

What does the saying “correlation does not imply causation” mean?

The phrase “correlation does not imply causation” means that there is no relationship between variables based on association or correlation. In other words, variables can have a correlation but they can also have nothing to do with each other. An example would be the homeless population and crime rate. Both might be high in an area, so they are correlated, but that doesn’t mean they affect each other.

How does determining a best-fitting line help us to predict from one variable to another?

Felicia