Treating depression assignment

Posted: February 27th, 2021

Use this activity to assess whether you and your peers can: In this activity you will investigate the first question related to the study described below. Some features of this activity may not work well on a cell phone or tablet. We highly recommend that you complete this activity on a computer. Use the rubric at the bottom of this page as a guide for completing this assignment. A list of StatCrunch directions is provided after the Prompt section below. Submit your work: Complete your assigned peer reviews: Submit your corrected work: Clinical depression is a recurrent illness requiring treatment and often hospitalization. Nearly 50% of people who have an episode of major depression will have a recurrence within 2-3 years. Being able to prevent the recurrence of depression in people who are at risk for the disease would go a long way to alleviate the pain and suffering of patients.During the 1980s the federal government through the National Institutes of Health (NIH) sponsored a large clinical trial to evaluate two drugs for depression. There were 3 treatment groups. Patients received either Imipramine (Imip) Lithium (Li) or a Placebo (Pl). Researchers randomly assigned patients to one of the 3 treatment groups and followed them for 2-4 years to track any recurrences of depression.(Prien et al. Archives of General Psychiatry 1984). If you have not done so already download the depression datafile (as always if a login box opens just close it and then download the file). Then upload the file in StatCrunch. We will analyze the data to answer the 1st research question: Which of the drugs (if either) was more successful in preventing the recurrence of depression relative to the placebo? In the previous lab-preparation activity we determined that we will analyze the data using a two-way table and conditional percentages. Each link will open in a new window. To return to this discussion either close the new tab or select the tab for this discussion. Here is a PDF document with all StatCrunch directions (Links to an external site.). Peer Reviewed Assignment w/ StatCrunch Peer Reviewed Assignment w/ StatCrunch This criterion is linked to a Learning OutcomeAddressing the Prompt Full Marks All parts of the Prompt are addressed. Answers are correct. Statistical vocabulary is used appropriately. Writing is clear and thought process is easy to follow. Partial Credit Some parts of the prompt are not addressed are incorrect or are unclear. No Marks The prompt is not addressed. 6 pts This criterion is linked to a Learning OutcomeStatCrunch Data Full Marks Appropriate StatCrunch graphs and/or tables are provided as directed. Partial Credit StatCrunch graphs and tables are inappropriate or missing important information. No Marks No StatCrunch information is provided. 2 pts This criterion is linked to a Learning OutcomeIndividual Penalty No individual penalty Individual penalty. Please see the instructor comments for more information. 0 pts This criterion is linked to a Learning OutcomePeer Reviews Full Marks You completed all assigned peer reviews (maximum of 2). For each peer review the points you assigned in the rubric are appropriate. You included comments explaining the score you posted in the rubric. If you deducted points in the rubric your comments explain what the author needs to do to earn a higher grade when the teacher grades the assignment. Partial Credit Committed a good-faith effort to provide a high-quality peer review but many necessary instructive comments are missing. No Marks No peer review provided or the comments are not instructive. 2 pts Total Points: 10 Create a contingency table in StatCrunch. Use conditional percentages to analyze the data in a contingency table. Draw conclusions based on the analysis of the data in a contingency table. Carefully read all sections below (beginning with the Context section and ending with the Prompt section). Commit a good-faith effort to address all items in the Prompt section below. Please be sure to number your responses. If directed to do so embed all required StatCrunch output in your initial submission. Please do not submit StatCrunch output as an attachment. After you submit your initial good-faith attempt continue to the ANSWER(S) page and review your instructors response. But please do not submit your corrected work yet. Within three days after the due date return to this assignment and complete your assigned peer reviews (directions (Links to an external site.)). We all learn from mistakes (our own and our classmates mistakes). So please do not immediately correct your own mistakes. If possible wait until you receive feedback from at least one of your peers. If necessary correct your work and resubmit the entire assignment – including any required StatCrunch output. Your instructor will only review and grade your most recent submission so please do not refer to a previous submission. Hospt: Which hospital the patient was from: Labeled 1 2 3 5 or 6 Treat: 0=Lithium; 1=Imipramine; 2=Placebo Outcome: 0=Success 1=Failure (recurrence of depression) Time: Number of weeks until a recurrence (if outcome=1) or until study ended (if outcome=0) AcuteT: How long the patient was depressed before the start of the current study measured in days Age: Age in years Gender: 1=Female 2=Male Use StatCrunch to produce a two-way contingency table. (directions)Copy the table in your StatCrunch output window and paste it in your initial discussion post. (directions)After you paste the content of the your StatCrunch output window into your discussion post keep the table titled Contingency table results: and delete the Chi-Square results: table. Analyze the data in your two-way table by finding appropriate conditional percentages. Write each conditional percentage as a ratio (e.g. 25 out of 40) and as a percentage (e.g. 25/40 = 62.5%). Then write a sentence that explains the meaning of the percentage in the context of the research question. Draw a conclusion. Based on this study which drug was the most effective in preventing the recurrence of depression? Support your conclusion using conditional percentages. Purchase StatCrunch (You only need to do this once.) Open StatCrunch Download Excel File Upload Excel Data File to StatCrunch Download StatCrunch Output Window (no screenshots; please use these directions) Upload Files to Your Stats-Class Folder in Canvas Embed Pictures in a Textbox (no attachments; please use these directions) Create a Two-way Contingency Table with Data Copy & Paste a StatCrunch Table Use StatCrunch to produce a two-way contingency table. (directions)Copy the table in your StatCrunch output window and paste it in your initial discussion post. (directions)After you paste the content of the your StatCrunch output window into your discussion post keep the table titled Contingency table results: and delete the Chi-Square results: table.Analyze the data in your two-way table by finding appropriate conditional percentages. Write each conditional percentage as a ratio (e.g. 25 out of 40) and as a percentage (e.g. 25/40 = 62.5%). Then write a sentence that explains the meaning of the percentage in the context of the research question.Draw a conclusion. Based on this study which drug was the most effective in preventing the recurrence of depression? Support your conclusion using conditional percentages. ‘

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