This tutorial shows the steps of how you can do two-way ANOVA in SPSS. A two-way ANOVA is used to estimate how a quantitative variable (i.e., Y) changes according to the levels of two categorical variables (X1 and X2). This tutorial uses hypothetical data of brand (X1) and City (X2) and sales as Y. You can download … Read more
This tutorial shows steps of how you can do One-Way ANOVA in SPSS. One-way ANOVA compares the means of two or more independent groups to determine whether the means are significantly different. We are going to test whether students of different programs (i.e., vocation, general, and academic) differ in writing scores. Thus, in this example, … Read more
This tutorial shows how you can do one sample t-test in SPSS. One sample t-test is to compare a sample to a fixed value. For instance, you can compare whether the average score of students’ reading is different from 45. In the following, I am going to show how you can do that in SPSS. … Read more
This tutorial shows how you can conduct paired t-test in SPSS. The following shows the specific steps with screenshots from SPSS. We are going to test whether students’ writing scores and reading scores are different. You can download the data here. Steps of Paired t-test in SPSS Step 1: Click “Paired Sample T-Test” Click “Analyze”, … Read more
This tutorial shows how you can conduct an independent t-test in SPSS. Note that, independent (sample) t-test is also called two sample t-test. It deals with situations where X1 and X2 are from two different groups of people or objects. For instance, in this tutorial, we are going to compare how female students differ from male students in writing scores. … Read more
This tutorial explains what the Johnson Neyman technique is, when you can use the Johnson Neyman technique, and how you can do Johnson Neyman in SPSS. What is the Johnson Neyman technique? The Johnson Neyman technique is used for interaction effects with continuous variables as independent variables. In nature, it is a technique to help … Read more
This tutorial is to show how to do a linear regression for the interaction between categorical and continuous variables in SPSS. We are going to use the dataset called hsbdemo, and this dataset has been used in some other tutorials online (See UCLA website and another website). You can download the SPSS sav file here. … Read more
This tutorial shows how you can select variables and save them as a new file in SPSS (i.e., subset data file). The easiest way is to use SPSS syntax to indicate which variables you want to select and where you want to save them as a new file. The following shows the key SPSS syntax. … Read more
This tutorial shows how you can plot interactions of categorical variables in SPSS. That is, the 2 independent variables (IVs) are categorical variables and the dependent variable is numerical. Since the IVs are categorical variables, we are going to use bar charts to plot the interaction effect. For this tutorial, you can download the dataset … Read more
This tutorial shows how you can create scatter plots in SPSS in 5 steps. In addition, it shows how to add a fit line in SPSS. Note that, the tutorial is based on SPSS 27; if you are using a different version of SPSS, the interfaces might look a bit different, but it should not … Read more