Two-way ANOVA Example under SPSS for Windows
(Green, Salkind, Chapter 25 Data File 1,2)
1. Open SPSS. It will put you into the DATA EDITOR screen with a line of commands and toolbar at the top. You can enter data at this point. Enter data in 3 columns -Gender (1= male, 2 =female), Method (1= Note taking Method 1, 2 =Note taking Method 2, 3= Control) and GPAimpr (Spring GPA - Fall GPA).  The SPSS data file is in Two-way Data File1.

2. Now select ANALYZE / GENERAL LINEAR MODEL / UNIVARIATE. In this window, move GPAimpr to Dependent Variable and Gender, Method to Fixed Factor. Then click on Continue. Under Post Hoc, highlight Type under Factor, move it under "Post Hoc Tests for" and choose Tukey under "Equal Variance Assumed", then Continue. Under Save, choose Standardized under Residuals. Under Options, choose Descriptive Statistics and Homogeneity Tests, then Continue. Click on OK.

3. The SPSS output will appear in the Viewer. If you have significant interaction (Two-way Data File2 ),you will want to rerun the analysis (Data File 2) , do post hoc tests and plots of the cell means.  See Chapter 25 syntax file for testing simple effects.

4. To check if the residuals are normally distributed, select ANALYZE / DESCRIPTIVE STATISTICS / EXPLORE . Move the new variable zre_1 to Dependent Variable, choose Display Plots, then click on the Plots box and check Normality plots with tests. Then Continue and OK.

5. To print the output, choose Print under File. You can save the SPSS output file with the SAVE AS command under File, but name with a .spo extension so that you know it is output and not a data file. For example, you could name the output from the scores data as a:twoway.spo.  SPO files can only be opened in SPSS.  But you can also export the file as a .doc or .htm file and be able to open it in Word, Excel under FILE/EXPORT.