One Variance: Power Calculation Results
Power Analysis and Sample Size Calculation in Experimental Design
Click the OK button in the One Variance: Power Calculation Parameters dialog box to display the One Variance: Power Calculation Results dialog box, which contains two tabs: Quick and Settings I/O.
Summary box
The Summary box at the top of the dialog box shows the current fixed, or baseline, parameters for the analysis. These can be altered at any time without losing any changes in the settings of the current dialog box by clicking the Change Parameters button.
Copy button Click the Copy button to copy either the selected text (if text has been selected) in the Summary box or all of the text (if no text has been selected) to the Clipboard. Note that the copied text retains formatting information (such as font, color, etc.).
Contract/Expand button Click the Contract/Expand button to contract or expand the Summary box. When contracted, you see only one line of the Summary box text and can scroll through the text using the scroll bar. Note that when contracted, the text is scrolled so that the first non-blank line is at the top. When expanded (the default setting), the entire Summary box is displayed.
Calculate Power
Click the Calculate Power button to calculate power for the currently selected fixed parameters. A spreadsheet containing the fixed parameters and the results of the power analysis will be created. The fixed parameters are discussed in the
One Variance: Power Calculation Parameters dialog box topic. Key results are the critical value of chi-square, the value used for the Statistical test, and the actual power.
Change Parameters
Click the Change Parameters button to alter the fixed parameters from the
One Variance: Power Calculation Parameters dialog box without losing any changes in the settings of the current dialog box.
Back
Click the Back button to return to the
One Variance: Power Calculation Parameters dialog box without saving any of the current changes.
Options
Click the Options button to display the Options menu.