Expert answer:Part 2 of the Inferential Research and Statistics

Solved by verified expert:I did part one of this. my interest is applied psychology and as such I choose the scenario on ptsd. part 2 now requires me using part one to further my usage of certain statistical approaches. I provided you with the instructions from part one and now part 2. as well as i uploaded my work from week 3 (part 1 paper) University of Phoenix Material Inferential Research and Statistics Project Part 1 Select one of the following scenarios based on your particular field of interest in psychology: Industrial/Organizational Psychology: oA few months ago, the upper management at a large corporation decided they wanted to make major changes in the organization. Leadership is concerned that employees may be resistant to the change, and they want to find out if there is a change management method that would help employees accept change more effectively and keep employee satisfaction high. Two methods they have considered are the ADKAR Framework and the Prosci Change Management Methodology. The company wants to implement a small change in two departments before they make any major organization changes and would like to test the methods. The corporation uses the Devine Company to measure employee satisfaction with an anonymous survey. Applied Psychology: oA large medical facility is experiencing too many missed appointments in its primary and specialty care clinics. The facility has noticed that not all patients respond well to reminder calls regarding follow-up appointments. Some patients do not answer calls and do not seem to respond to voice mail requesting they call the facility. The result is that many follow up appointments are missed. Management has read articles that people respond very well to text messages and would like to see which method provides the least amount of missed appointments. Missed appointments are tracked in the facility database on a monthly basis. General Psychology: oClinicians 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. Write a 525- to 750-word paper that addresses the following for your chosen scenario: Clearly define the problem or issue you are addressing. Provide a brief background of any research you have found that might affect your research hypothesis. Create a research hypothesis based on the information provided in each scenario. You have been given a data set (Excel document) with two sets of interval data (just the numbers, as you must decide what they represent, such as method A results or method B results). This means you are going to test one thing against another, such as which method works best (step 1 of the steps to hypothesis testing). State the null and research hypotheses. Explain whether these hypotheses require a one-tailed test or two-tailed test, and explain your rationale. Describe the sample you will use. Sample size will be 30 for each group, which are provided in your data set. Explain what type of sampling you selected. Do you think you would also collect some descriptive data, such as gender, age, or shift? Why do you think it makes sense to collect descriptive data? Format your paper according to APA guidelines. Example You have a hypothesis that two drugs have different effects on lowering anxiety. You would have anxiety scores for drug A and anxiety scores for drug B (all after 4 weeks of treatment) to run inferential analysis for after 4 weeks. Null hypothesis is H0: drug A = drug B Research hypothesis is H1: drug A ≠ drug B Dependent variable: Anxiety score changed after treatment. Independent variable: drug treatment Because you did not state a direction in your hypotheses (better than or worse than), this will be a two-tailed test. You are looking for differences in either direction. You would set your alpha level of .05 and have a sample for each group of 30 people that were volunteers for the study. Part 2 Analyze the data from Part 1 using Microsoft® Excel® software. Write a 700- to 875-word paper that includes the following information: Describe what method you are using to compare groups. Copy and paste the output into a Microsoft® Word document, and also answer the following questions: oWhat is the significance level of the comparison? oWhat was the alpha level you identified in Week 3? oWhat was the means and variance for each variable? oWhat was the test statistic? oWhat was the critical value for both the one- and two-tailed test? oWas your test one-tailed or two-tailed? oWere you able to reject the null hypothesis? In other words, did you prove there was a difference? Talk about what these results mean in everyday language and in context to your chosen scenario. Make a recommendation based on the findings. Format your paper according to APA guidelines. Example of Output You Would Use to Answer These Questions t Test: Two-Sample Assuming Equal Variances Variable 1 Variable 2 Mean 4.875 8 Variance 5.267857143 18.28571429 Observations 8 8 Pooled variance 11.77678571 Hypothesized mean difference 0 df 14 t stat -1.821237697 P(T <= t) one-tail 0.045002328 t Critical one-tail 1.761310136 P(T <= t) two-tail 0.090004655 t Critical two-tail 2.144786688 Part 3 Create a 12- to 15-slide presentation using the information you gathered and submitted in Weeks 3 & 4. Include the following: 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. Format any citations in your presentation according to APA guidelines. psy_315_week_3_ptsd_research_project_submit.docx Unformatted Attachment Preview 1 Inferential Research and Statistics Project, Part 1 Inferential Research and Statistics Project, Part 1 Psy/ 315 Sonja Glass November 13th, 2017 Richard Avery 2 Inferential Research and Statistics Project, Part 1 There is a high population of people who suffers from Post-Traumatic Stress Disorder (PTSD). According to the National Center, “Nearly 8 million adults suffer from PTSD during a given year.” PTSD symptoms come from experiencing or witnessing dramatic, terrifying events. According to the Department of Veterans Affair, “about 11-20% of Veterans who have served in recent Operations Iraqi Freedom (OIF) and Enduring Freedom (OEF) have PTSD in a given year.” Military Veterans are the more common victims who are diagnosed with PTSD due to the significant amount of exposure to violence during war, flashbacks are inherited, and anxiety, nightmares and depression with mood swings are amongst some of the common symptoms. A research hypothesis that I would like to compare are between two essential therapies: Virtual Reality (VT) and Cognitive Processing Therapy (CPT) for Military Veterans/Affiliates vs. Civilians. The Combat Exposure Scale will be used to measure the PTSD symptoms effective level and would need approximately a minimum of 12 weeks to test the impact efficiency. My hypothesis would be to choose Virtual Reality (VR) for a better method for PTSD treatment. Newer technologies are more available to effectively deliver better effective treatments due to having computer-based simulations conducted during exposure exercises to enhance real-life commencement of trauma memories and related emotional events during the studies. This can be helpful for some who have difficulty seeing or emotionally engaging with the trauma memory from prior history. This can help towards reducing or eradicating PTSD symptoms but there are still advance studies necessary on newer technologies to confirm 100%. According to scenario, VR would be Group 1 and CPT will be Group 2. VR’s average 3 Inferential Research and Statistics Project, Part 1 based upon the data set results was 5.61 and 7.32 for CPT. My research hypothesis would notice that the patients could possibly react more positive to VR than CPT. This would be a two-tail test because it’s a two sided test to see which group has a greater sample than the other, which in this case, CPT has a slight increase in less effectiveness by approximately 23% difference. My null hypothesis is that both therapies will balance out in the effective treatment of PTSD and clinics won’t view the therapies to have significant differences in the testing methods coming for Military Affiliates vs. Citizens. The sample that I would use would be random cluster sampling because all participants will be assigned to one group and it will be easier to narrow down or process of elimination through the 30 population size. Using random cluster sampling is a simple technique in picking patients from a large group randomly and will allow for each chosen patient to conduct the VR therapy. Gender, age, years of service, time at war, etc are amongst some of the essential descriptive data that be ensured to collect for my testing. There are certain levels and criteria to have to consider in testing. This will help analyze the big picture more vividly and while gaining a better understanding of the test results more effectively. Comparing Veterans who actually served boots on ground versus ones who didn’t but still may have been injured in some capacity during their service. There are different therapies for certain situations that may be simply necessary. 4 Inferential Research and Statistics Project, Part 1 References https://www.ptsd.va.gov/public/ptsd-overview/basics/how-common-is-ptsd.asp http://abcnews.go.com/Technology/treating-ptsd-virtual-reality-therapy-heal-trauma/story?id=38742665 ... Purchase answer to see full attachment

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