You should now know how to calculate the median in SPSS.

(The mean is 7.3541, and the standard deviation is 2.33632). The result appears in SPSS’s output viewer.Īs you can see, this is very easy to interpret.įor our example, the median value is 7.02. You’re now set up to calculate the median. Explore window, drag the variable of interest over to the Dependent List box. This isn’t necessary, but the option will provide useful additional information. Firstly, in SPSS, go to Analyze > Descriptive Statistics > Explore. Add a title to the scatterplot To make adjustments to the resulting scatterplot, double-click the graph displayed in the output window. It’s probably worth noting that we’ve also selected Display frequency tables at the bottom on the left. The Chart Builder dialog box closes and SPSS activates the Output window to display the scatterplot. You should now be looking at something like this. We’ve also selected Mean and Standard Deviation, just because these are standard measures of central tendency and dispersion (respectively). Here you just want to tick the Median option under Central Tendency on the right. Once you’ve set this up, hit the Statistics button to bring up the Statistics dialog box. You can do this by dragging and dropping, or by selecting the variable on the left, and then clicking the arrow in the middle. You need to get the variable for which you wish to calculate the median into the Variable(s) box on the right. We’ll cover how to make great looking graphs in SPSS We’ll start by creating basic graphs, then explore how to upgrade by modifying various elements Take the pre-test here Get the SPSS dataset here Get the PDF version here Stay tuned for a summative treat at the end Elements: I. This will bring up the Frequencies dialog box. This is probably the easiest.Ĭlick Analyze -> Descriptive Statistics -> Frequencies. A brief interpretation of the boxplots is also discussed. There are a number of different ways of calculating the median in SPSS. The boxplots are also called bars and whisker diagrams in SPSS.

In other words, you want to know the duration in seconds that lies exactly at the midpoint of the distribution of all durations. You want to find out the median of the duration variable. So we’ve got three variables here: (a) duration – which is the duration in seconds it takes to complete a certain task (b) sex – male or female and (c) height – in inches. This is the data set with which we’re going to be working. Click the Statistics button, select Median under Central Tendency, and then press Continue.Move the variable for which you wish to calculate the median into the right-hand column.Click Analyze -> Descriptive Statistics -> Frequencies.

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