Select Data, Split File, Organize Output by Groups. Suppose we want our results split by sex, allowing us to separate results for males and females. Statistics Output for EMAILHR and TVHOURSĭemonstration 2: Producing Measures of Central Tendency With Descriptives and Split File It’s up to you to select the proper measure of central tendency.įigure 3.1. SPSS produces exactly the output we asked for, without regard for whether the output is correct for this type of variable. Though we’ve instructed you to select the Mean, Median, and Mode for your output, the mean is the most appropriate measure of central tendency. Both variables are interval-ratio measurements. The statistics box for EMAILHR and TVHOURS is displayed here (Figure 3.1). Then click on Continue, then on OK to process this request. You will see that the Central Tendency box lists four choices, but we will click on only the first three-Mean, Median, and Mode. Place EMAILHR and TVHOURS in the Variable(s) box.
We will use Frequencies to calculate measures of central tendency for EMAILHR (number of e-mail hours per week) and TVHOURS (hours per day watching television).Ĭlick on Analyze, Descriptive Statistics, then Frequencies. The Frequencies command, which we demonstrated in chapter 2, also has the ability to produce the three measures of central tendency discussed in this chapter. Demonstration 1: Producing Measures of Central Tendency With Frequencies
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