Information Technology Reference
In-Depth Information
Figure 15.10
The specification for the plot.
In the
Plots
dialog window, click over
toytype
to the
Horizontal Axis
panel and
gender
to the
Separate Lines
panel. Place
color
in the panel
for
Separate Plots;
this will result in one plot for the yellow toys and a
second plot for the blue toys. We have shown this in Figure 15.9. Click
Add
to register your plot with SPSS, the outcome of which is shown in the
lower panel labeled
Plots
in Figure 15.10. Note that the general structure
of the specification is
Horizontal Axis
Separate Plots
.
Click
Continue
to return to the main dialog window. Then click
OK
to
perform the omnibus analysis.
∗
Separate Lines
∗
15.5 SPSS OUTPUT OF THE OMNIBUS ANALYSIS
The results of Box's test, shown in Figure 15.11, is not statistically signif-
icant; this indicates that the assumption of the equality of the covariance
Box's Test of Equality of Covariance Matrices
a
Box's M
F
df1
df2
Sig.
17.981
.773
10
305.976
.655
Tests the null hypothesis that the observed
covariance matrices of the dependent
variables are equal across groups.
a. Design: Intercept
Figure 15.11
The results of
Box's
M
test.
GENDER
Within Subjects Design:
COLOR
+
+
TOYTYPE
+
COLOR*TOYTYPE
