Two-Way Analysis of Variance

Significance (level): Enter a positive value in decimal form, such as 0.05.

Note: This module requires a balanced design, which means that each cell has the same number of values. (A cell is one grouping of sample data that appears in one individual row and one individual column.)

Number of categories for ROW variable: Enter the number of different categories used for the row variable.

Number of categories for COLUMN variable: Enter the number of different categories used for the column variable.

Number of values in each cell: Examine the entries in the first row and first column and identify the number of values listed in that cell. Enter that value.

For example, if the sample data consist of a row variable with TWO categories for gender (male, female) and a column variable with THREE categories for age (such as 21-29, 30-39, 40 and over) and FIVE values in each cell, enter 2 for the number of categories of the row variable, enter 3 for the number of categories of the column variable, and enter 5 for the number of values in each cell.

Click on the CONTINUE button. The STATDISK display will list the appropriate row and column numbers with spaces left so that you can enter the sample data in the "Value" column. The first entry will correspond to Row = 1, Column = 1, and a blank space to the right. This indicates that you should enter the first value listed in the cell for the first category of the row variable and first category of the column variable. Proceed to enter all of the sample data. NOTE: If you already have the sample data listed in this format, you can use PASTE to copy it into the "Value" column.

Click on the Evaluate button to obtain the results. Be sure to see the textbook for interpretation of the results.

Click on the Print button to print the results.

To close the window, click on the X at the top of the module window.