Homework6 focuses on the application of concepts addressed in Exercises 17 and 32. Homework6 is due SUNDAY at 11:59pm.

In a study examining the level of functional impairment among 10 adults receiving rehabilitation for a painful injury, changes over time were investigated (Cipher, Kurian, Fulda, Snider, & Van Beest, 2007). The dependent variable is emotional distress, which was represented by patients' scores on the Affective Distress subscale of the Multidimensional Pain Inventory (MPI; Kerns, Turk, & Rudy, 1985), with higher scores representing more emotional distress due to pain.

These data are presented in HW6.sav. The null hypothesis is "There is no reduction in emotional distress from baseline to post-treatment for patients in a rehabilitation program."

Download the file:

HW6.sav

Open in SPSS. Use the dataset to answer the following questions.

Compute a paired samples t-test with baseline and post-treatment emotional distress.

1. List numerator value.

2. List the denominator value.

3. Compute the t-test from above using SPSS. Paste the table containing the t value into your homework.

4. Is the t significant at a=0.05? Specify how you arrived at your answer.

5. What is the exact likelihood of obtaining the calculated t value at least as extreme or as close to the one that was actually observed, assuming that the null hypothesis is true?

6. Write your interpretation of the results of the paired samples t-test, as you would in an APA-formatted journal.