Example: Pearson Correlation for Power and Sample Size Analysis

In the Tasks section, expand the Power and Sample Size folder, and then double-click Pearson Correlation. The user interface for the Pearson Correlation task opens.

Under the Solve For heading, select Power.

For the analysis test, select Fisher’s z transformation.

For the number of sides, select Two-sided test.

Specify a significance level of 0.05.

Under the Correlation heading, select Correlation, Null correlation from the Select a form drop-down list.

Enter .3 as the correlation, and enter .1 as the null correlation.

For the sample size, enter 180.

To run the task, click .