SPSS ANOVA1. One-way AnovaYou should not use the chi-squared test if the dependent variable is interval-scaled. Instead, ANOVA should be used. In this example, we want to investigate if there is any educational difference in "Likelihood of Buying" the Woolworth dog biscuit.To use ANOVA, click on Analyze from the main menu, select Compare Means, then One-way ANOVA to go into the dialog box for one-way ANOVA. In the dialog box, select 'Likelihood of buying', the probability of buying Woolworth dog biscuit at $15 per packet, and specify it as the dependent variable. Then select Education and put it under Factor. Finally, click on Options to pop up another menu in which you should click on Descriptive and Homogeneity of Variance:
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Click Continue, then Post Hoc. From the list of Equal Variances Assumed, select Scheffe. Select Tamhane’s T2 from the list of Equal Variances Not Assumed:Click Continue. Click OK in the One-Way ANOVA dialog box to get the output:Oneway