One-way ANOVA Example under SPSS for Windows
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 2 columns - Type (of shopper) and Amount (of $ spent on groceries per week).  Or download the text file from oneway.dat
1 56
1 60
1 64
1 67
1 66
1 63
2 66
2 67
2 74
2 73
2 75
2 64
3 69
3 68
3 72
3 75
3 76
3 66
4 85
4 84
4 76
4 82
4 69
4 76

Click on the Variable View Tab (at the bottom left of the screen) to switch to the Variable View screen. Here you can give names, variable labels and value labels to the variables. You could label the first variable Type as Type of Shopper and its value labels could be: 1 apathetic, 2 involved, 3 price conscious, 4 convenience. You could label the second variable as Amount and label it as Amount spent on groceries per week. Save the data using the FILE/SAVE AS/ and give it a name a:oneway.sav and click on OK.

2. Now select ANALYZE / GENERAL LINEAR MODEL / UNIVARIATE. In this window, move Amount to Dependent Variable and Type 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.  The SPSS output will appear in the Viewer. You can scroll down through the results on the right hand side or use the guide on the left-hand side to maneuver around the output. If you click on a particular heading, that output will be selected on the right-hand side.

3. 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. (Note: If you do the analysis more than once, you may have several new variables, zre_1, zre_2, etc. Make sure you have only one and it's from the correct analysis).

4. To print the output, choose Print under File. SPSS wastes paper, so several pages are printed for each procedure. 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:oneway.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.