Clinicians at a small clinic have been introduced to a new method to treat post-traumatic stress disorder (PTSD) in their clients for veterans. Research indicates that virtual reality (VR) is a highly effective treatment option for patients with PTSD. Currently, the clinic uses only cognitive processing therapy (CPT) with their patients suffering from PTSD. The clinicians would like to find out whether VR therapy has different results from CPT therapy. The measure used by the clinic to measure PTSD symptoms is the Combat Exposure Scale. Both therapies need to be applied for a minimum of 12 weeks to be effective. Describe the problem, and provide some brief background about the situation.

• Explain the research hypothesis.
• Describe your sample and your sampling method.
• Explain the four steps of the research process you followed, and define the critical value and the test statistic your analysis provided.
• Provide the main finding of the study. What did you prove or fail to prove?
• Provide recommendations based on your findings