Chapter 1. Correlation Coefficient Infographic Activity

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Scientific American: Psychology
Infographic Activity 1.4: The Correlation Coefficient

The Correlation Coefficient: What’s in a Number?

A correlation indicates a relationship between two variables, such as the amount of time you spend studying and the grade you get on a test. This relationship is often indicated using a correlation coefficient, symbolized as r. To interpret the relationship using a correlation coefficient (r), ask yourself two questions:

(1) What is the direction of the relationship?

(2) What is the strength of the relationship?

A scatterplot helps us see what the correlation looks like. And remember, a correlation between two variables does not necessarily mean the one variable caused the change in the other variable.

Click the image to enlarge.

Click "Next" to continue.

1.1 Quiz

Question

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