Using repeated measure on SPSS
Using repeated measure on SPSS – I need tests of withinand pairwise comparisons
( Upload screenshot of SPSS – tests of within and pairwisecomparisons )
In an effort to understand test anxiety better, an educationalresearcher attempts to operationalize anxiety by informing subjectsthat completing a task in the time limit is required if the subjectis to receive a reward. Each subject receives four sets of 10simple calculation problems. Each set imposes a more stringent timerequirement than the one preceding after which anxiety is gauged.Anxiety scores for 8 subjects are as follows:
|
Time 1 |
Time 2 |
Time 3 |
Time 4 |
|
|
1 |
8 |
8 |
9 |
9 |
|
2 |
7 |
7 |
8 |
10 |
|
3 |
4 |
4 |
4 |
5 |
|
4 |
2 |
3 |
5 |
5 |
|
5 |
5 |
6 |
6 |
8 |
|
6 |
5 |
5 |
7 |
9 |
|
7 |
4 |
4 |
5 |
4 |
|
8 |
2 |
3 |
6 |
7 |
- Does anxiety appear to be related to time limits?
- Where are the significant differences?
Answer:
We have run this problem in MINITAB and get the output as oneway ANOVA as
H0: all time has same mean
vs
H1: atleast 1 time has different mean
a) Does anxiety appear to be related to time limits?
the p-value for the test is 0.066>0.05 hence we will acceptH0 at 95% confidence and we will say all means at different levelof time are same.
b) since there is no difference in Time we say that the meansare equal at 95% confidence. Though I did the Tukey’s test to checkfor equality,
Hence all means are equal
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