2022 Introduction to Statistics in Research Mitchell 2nd ed

I N T R O T O R E S E A R C H : D A T A V I S U A L I Z A T I O N & C O M M O N S T A T T E S T S

Paired-t test Boxplots On the main menu, choose Analyze > Descriptive Statistics > Explore

1) Then, pull the pretest and posttest to the dependent variable list (and in that order)

2) Select Plots and the popup window will open

3) In the pop- up window, choose “Dependents together” and click continue and that will close the plots window. Then just click “OK”

Table 146: Set up multiple boxplots in SPSS

Box Plot Output clearly shows an improvement between the pretest and posttest. We do have some outliers; however, the dataset is large so we can move to the next step.

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