Database Reference
In-Depth Information
FIGURE 7.7
S-N-K results for illustrative example; SPSS.
box (see oval) was checked off. Third, you simply click on “Continue” (see vertical
arrow). This brings us back to
Figure 7.4
, but the output includes not only what is
shown in
Figure 7.5
, but also what is shown in
Figure 7.7
.
Figure 7.7
indicates that all four (true) means are judged as different from one
another!! In other words, the mean ease-of-use rating is concluded to be different for
each task. The order is obvious from a simple look at the four means in
Figure 7.7
.
In order to do the S-N-K test, we needed to undertake a few extra steps in SPSS,
compared to what we did in Chapter 6, when we introduced and performed the test
using independent samples. When we arrived at
Figure 7.4
, before using the “Post
Hoc” subcommand (see bent arrow in
Figure 7.4
), which, as Chapter 6 indicated, is
a key, but easy, step in how we perform the S-N-K, we need to irst click on “Model”
(see arrow in
Figure 7.8
, which igure repeats
Figure 7.4
).
This produces
Figure 7.9
.
We now click on “Custom” (see arrow in
Figure 7.9
), and you will get
Figure 7.10
.
See arrow in
Figure 7.10
to note that “Custom” is checked.
We now need to do
three
things. We are sorry that there are so many steps, but it
takes longer to explain what to do than to actually do it!!
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