Research Scenario: A clinical psychologist is studying whether aerobic exercise improves anxiety in veterans diagnosed with PTSD. Participants agreed to take an anxiety measure before and after a 4-week aerobic exercise plan (5 workouts per week for four weeks). The values provided in the table are anxiety scores (scale measurement) collected before and after the aerobic exercise sessions, with higher numbers indicating higher anxiety. Using this table, enter the data into a new SPSS data file and run a correlated groups t test to test whether aerobic exercise improves anxiety in veterans with PTSD. Remember to name and define your variables under the “Variable View,” then return to the “Data View” to enter and analyze the data. Remember, data will be entered differently than “normal” since this is a within subject’s design. You will have two columns – “Before” and “After”, and the numbers will be your dependent variable (anxiety scores).
Before |
After |
24 |
19 |
23 |
23 |
22 |
17 |
30 |
19 |
31 |
22 |
30 |
13 |
38 |
35 |
25 |
24 |
33 |
28 |
38 |
35 |
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