What formula in SPSS will I run for the following types of q

What formula in SPSS will I run for the following types of questions: There are 12 participants in the study

Time

Before

After

1

4

5

1

1

4

1

3

5

1

2

6

2

5

6

2

3

4

2

4

7

2

2

7

3

3

8

3

4

8

3

6

10

3

5

9

1. Add in third measurement, One Month after end (previous measurements are Before and After). Can you use the same statistical formula from previous question 2 (t test statistic), or does another test need to be used. Identify and explain Why or Why not?

2. What graph form is most appropriate for Before variable?

Solution

1) Use paired t test command

Comapre means - paired samples test

2) With a third measurement you will not be able to use the same command as there are now 3 means

Use one way anova

3) Scatter plot can be used