# Question: Discuss each of the following as a means of illustrating

Discuss each of the following as a means of illustrating the partial correlation between X1 and Y, controlling for X2: what can each analysis tell you about the strength and the nature of this relationship?

I. Scatter plots showing Y versus X1 (with X2 scores marked in plot)

II. Partial r as correlation between the residuals when X1 and Y are predicted from X2

I. Scatter plots showing Y versus X1 (with X2 scores marked in plot)

II. Partial r as correlation between the residuals when X1 and Y are predicted from X2

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