A Step by Step Guide for SPSS and Exercise Studies

Statistical tests 63
Dialog box 61
Custom Tables/Tables of Frequencies (Dialog box 61)
The Tables of Frequencies are in many respects similar to the other types of
tables described above. You can request a table showing the frequencies for each
category of a variable which appears in the Frequencies for box. Alternatively,
you may break down the frequencies count according to some grouping
variables such as gender and level of participation. The options at the bottom of
this dialog box are very similar to the ones described in Dialog box 56. For an
explanation of the nested and stacked options, see Table 12 and Table 13.
Double-click the table to see the different layers (Table 16).
Compare Means/Means (Dialog box 62)
This option estimates the mean or other descriptive statistics of dependent
variables (situated in the Dependent List) across the different subgroups of
independent variables (located in the Independent List). You can create one or
more layers or blocks of independent variables using the Previous and Next
buttons. Each layer can include as many variables as you like. Use Options to
specify which descriptive statistics you want to calculate.
In Table 17 two layers have been specified: frequency of exercise (frequenc)
and gender. The latter variable will appear if you click on the Next button. Click
OK to produce the output table. Table 17 shows the descriptive statistics for
males and females (i.e., two subgroups of the first layer), as well as for those
who exercise frequently or occasionally (i.e., two subgroups of the second
layer), on a measure of body fat percentage.