Mean
The mean is the average of a continuous distribution
The mean or average of a continuous variable is calculated by adding all observations in a distribution together and dividing by the number of observations. The mean plays an important role in reporting the results of parametric statistics (tests for continuous outcomes). The p-values yielded from inferential statistical tests like one-sample t-test, independent samples t-test, ANOVA, repeated-measures t-test, repeated-measures ANOVA, ANCOVA, fixed-effects ANOVA, random-effects ANOVA, mixed-effects ANOVA, MANOVA, and MANCOVA are always interpreted within the context of means and standard deviations.
The steps for calculating a mean in SPSS
1. The continuous data is entered into a column of a database.
2. Click Analyze.
3. Drag the cursor over the Descriptive Statistics drop-down menu.
4. Click on Descriptives.
5. Click on the continuous outcome or variable to highlight it.
6. Click on the arrow to move the outcome or variable into the Variable(s): box.
7. Click OK.
2. Click Analyze.
3. Drag the cursor over the Descriptive Statistics drop-down menu.
4. Click on Descriptives.
5. Click on the continuous outcome or variable to highlight it.
6. Click on the arrow to move the outcome or variable into the Variable(s): box.
7. Click OK.
The steps for interpreting the mean output in SPSS
1. In the Group Statistics table, look in the Mean column. This is the mean value that is interpreted.
Click on a button below to continue.
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