Question: r 2. For a study involving paired sample data, it is found that r = -0.4. What is the value of r 2 ? In

r 2.

For a study involving paired sample data, it is found that r = -0.4. What is the value of r 2

? In general, what is r2 called, what does it measure, and how can it be interpreted? That is, what does its value tell us about the variables?

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