How to create three-variable tables using DAS/SDA

To create a three-variable table, you must specify a row variable, a column variable, and a control variable. You normally would set up the table by putting your independent variable as the column variable (this will put it on the top of each subtable), your dependent variable as the row variable (this will put it on the side of each subtable), and your control variable so that it specifies each subtable (there will be one subtable for each category of the control variable). When you are in the DAS/SDA frequencies/crosstabulation program, enter your variables in the row, column, and control dialog boxes.

If the table is set up in the above fashion, you normally would want percentages by columns. You should click this option under table options.

If statistics are desired, that option should be checked under table options. For a discussion of the statistics that are commonly used for contingency tables, see the section on principles of data analysis. In these exercises, we have not asked you to generate statistics, but your instructor may suggest doing so.

It is possible to generate charts using the frequencies/crosstabulation program, but it is not necessary to do so, as all of the information that you need will be contained in the table that you generate. We therefore suggest that you select "no chart" under chart options.

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