2.3 Study Types, Measures of Association, Statistical Tests, & Interpretation - Nursing
Directions: Write   the information requested in each column. Please refer to the Variables Supplement found in   the Resources. Each scenario is 14 points each, total 70 points. Question F   is worth 5 points for a total of 75   points.   Select from   these study designs, using each only once: Case   control study Prospective   cohort study Retrospective   cohort study Cross-sectional   study Intervention   trial Select from   these measures of association and tests of significance, some of which are   used more than once: Chi-square Chi-square   w/o Yate’s Correction Difference   between the means Chi-square   Fishers Exact Test Odds   ratio p-value Relative   risk  t-test   Scenario   A: A team of researchers set out to study the risk   factors for pancreatic cancer. From   hospital records, they assembled a group of 50 patients who were either still   living or who had a next of kin identified and willing to answer questions   about medical history, lifestyle, and prior experiences of the patient. They assembled another group of 50 patients   from the same hospital who were admitted for other causes and did not have   cancer of any type. The investigators   conducted a review of all available records of these patients, then   interviewed them or their next of kin using a standardized format, either in   person or by telephone. They focused   on ten possible risk factors which could either be answered as yes/no or   rated on an ordinal scale. In this   study, 22 of the 50 pancreatic cancer patients were recorded as having at   least a 20 pack-year history of cigarette smoking, while 7 of the 50 in the   other group of patients had that history.   1. What   type of study is this   and what attributes make it so? (See   Week 2 PPT):  Case-control   study    2. What is the independent variable in this scenario, and what type is it? What is the dependent   variable in this scenario, and what   type is it? Independent= 20 pack a year   smoking type=   Dependent=pancreatic cancer type=    3. A null hypothesis states that   there is no effect, no relationship, or no difference between the variables   being tested. What might be a null hypothesis   for this study?   4. Odds   Ratio is the   most appropriate measure of association to evaluate the relationship of each   risk factor for the occurrence of pancreatic cancer and measures 4.47. Use the table and link below to show the data. What do the results   mean? The   Odds Ratio is calculated as (a/c) / (b/d). In   this scenario, which group   is ___ times more likely to develop pancreatic CA?   What   types of variables can be tested by OR?    Odd Ratio   Calculator # of Ills # of Wells Total   # of Exposed A =  B = A + B = 50   # of Unexposed C =  D =  C + D = 50   Total A + C = 50 B + D = 50 A+B+C+D = 100   How   to interpret Odds Ratio: § OR = 1 suggests that there   is no difference between the groups; i.e. there is no association between the   suggested exposure and the outcome (being ill) § OR > 1 suggests that the   odds of exposure are positively associated with the adverse outcome compared   to the odds of not being exposed § OR < 1 suggests that the   odds of exposure are negatively associated with the adverse outcomes compared   to the odds of not being exposed.  Potentially, there could be a protective   effect   5. What is the most appropriate test   of significance for this scenario?   (See Week 2 PPT)  Chi-square   test for Independence w/o Yate’s correction   6. Calculate   the chi-square test result using this on-line calculator. What is the result?   7. What   is the interpretation of the test result and what do the results mean? The chi-squared statistic is a   single number that tells you how much difference exists between your observed   counts and the counts you would expect if there were no relationship at all   in the population.    Scenario   B: Another team of researchers set out to test a new   medication developed to prevent the onset of diabetes in patients with a   strong family history of diabetes. They assembled a group of 200 patients and randomized them into two   equal groups, one to receive a placebo and the other to receive the   medication. They followed them each   year for five years and ascertained the occurrence of diabetes using a   glucose tolerance test. At the end of   the trial, 11 of 100 patients in the placebo groups had developed diabetes   mellitus, and 8 of 100 patients in the medication group had developed   diabetes mellitus.   1. What type of study is this and   what attributes make it so? (See week   2 PPT) Intervention   trial   2. What is the independent variable   in this scenario, and what type is it? What is the dependent variable in this   scenario, and what type is it?     3. Please   state a null hypothesis.   4. What is the most appropriate   measure of association for this scenario? (see week 2 PPT) Relative   risk   5. What is the most appropriate test   of significance for this scenario? (See week 2 PPT.) What do the results mean?  Chi   square   6. Fill in the online Chi-square   contingency table.    Set it up just as you did earlier. What   is the result? Chi-square is again the most appropriate test for   significance. Why?    7. What   do the results mean in terms of the null?   Relative Risk is very similar to Odds Ratio,   however, RR is calculated by using percentages, whereas Odds Ratio is   calculated by using the ratio of odds.  Relative Risk values are greater   than or equal to zero.  A value of 1 indicates a neutral result meaning   the probability of a variable being present in one group is the same   probability of a variable being present in the other group.  However, a   value of zero indicates that none of the cases in group 1 had the event occur   while x number of cases in group 2 had the event occur; or   in other words, the numerator was a zero (A = 0) and the denominator was any   number greater than zero (B = x, where x >   0).   Scenario   C: A team of health sciences students decided on a   project that would give them experience with their statistical analysis   skills as well as some practice in taking vital signs. They assembled a group of 40 undergraduate   students, 20 science majors and 20 majors in other fields of study, brought   them to a makeshift clinic in the science building and measured their blood   pressures with a hand-held BP cuff. The results were as follows: The science majors’ SBPs were: 100, 110, 116, 120, 122, 128, 128, 128, 130, 132, 132, 134, 140, 144,   146, 146, 150, 152, 154, 158. The other majors’ SBPs were: 112, 118, 120, 126, 130, 130, 132, 134,   140, 142, 144, 144, 148, 150, 158, 160, 170, 172, 176, 190   1. What type of study is this and   what attributes make it so? (See Week   2 PPT) Cross-sectional   study   2. What is the independent variable   in this scenario, and what type is it? What is the dependent variable in this   scenario, and what type is it?     3. Please   state a null hypothesis.   4. What is the most appropriate   measure of association for this scenario (see week 2 PPT)? Calculate that measure of association. Significance of the difference   between the means   5. What is the most appropriate   statistical test of significance of this measure of association. Why? Independent   t-test   6. Calculate the independent t-test result using the on-line calculator (Formula) What are the results?   7. What   do the results   mean and how   do we state our conclusion regarding the null hypothesis?    Scenario D: Another team of   investigators reviewed medical records to determine which military personnel   among several basic training units had received a previous type of meningitis   vaccine during training two decades ago. Two study groups were formed, those who had not received the vaccine   and those who had. These were followed   forward by record review throughout the duration of their active military   service, and if they had a record of care through the VA system, these   records were searched as well. The   outcome of interest was the occurrence of any of a number of autoimmune   diseases that were thought to have a possible association with the   vaccine. In this study, of a vaccine   group of 70, 4 individuals were found to have been diagnosed with lupus at   some subsequent point in time. In the   non-vaccine group of 105, only 2 individuals had that diagnosis   1. What type of study is this and   what attributes makes it so? (See week   2 PPT):  Retrospective   cohort study   2. What is the independent variable   in this scenario, and what type is it? What is the dependent variable in this   scenario, and what type is it?     3. State a null hypothesis.   4.  What is the most appropriate measure   of association to compare the rates of occurrence of autoimmune disease   between the two groups and Why?   Calculate that measure of association.  Relative risk   5. What is the most appropriate   statistical test of significance of this measure of association and Why? Calculate the test result using   the on-line calculator.  Which test option should you use? What is the result?  Chi square, fisher’s   exact test   6. Using the same on-line calculator as for problems #1 and #2,   perform this test. What are the   2-tailed p-value results?    7. What do the results mean   regarding the null hypothesis?    Scenario   E: Yet another team of investigators embarked on a   long-term study to assess the impact of low versus high levels of blood   cholesterol in Native Americans on subsequent occurrence of myocardial   infarction. They recruited 100   patients from three Indian Health Service hospital systems, and divided them   into two groups based on cholesterol LDL/HDL ratio (high ratio is bad) – 42   in the high group and 58 in the low group. By the end of the fifteen-year follow-up period, 16 in the high group   and 7 in the low group had experienced a myocardial infarction.    1. What type of study is this and   what makes it so?  Prospective   cohort study   2. What is the independent variable   in this scenario, and what type is it? What is the dependent variable in this   scenario, and what type is it?     3. State   a null hypothesis.   4. What is the most   appropriate measure of association to compare the rates of myocardial   infarction in the two groups and Why?   (See Week 2 PPT) Calculate that measure of association. What are the results?  Relative   risk   5. Chi square w/o   Yates correction   is the most appropriate statistical test to test the significance of this   measure of association. Why and what   are the 2-tailed p-results?   6. What do the results mean in terms   of the null hypothesis?   Question   F. From your readings, describe:   1.   How the study design is selected.   2.   How the measure of association is determined.   3.   How the measure of significance is determined.   4.   How interpretation of the results is accomplished.   5.   What you would like to understand better.   Total /75
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Your assignment may be more than 5 paragraphs but not less. INSTRUCTIONS:  To access the FNU Online Library for journals and articles you can go the FNU library link here:  https://www.fnu.edu/library/ In order to n that draws upon the theoretical reading to explain and contextualize the design choices. Be sure to directly quote or paraphrase the reading ce to the vaccine. Your campaign must educate and inform the audience on the benefits but also create for safe and open dialogue. A key metric of your campaign will be the direct increase in numbers.  Key outcomes: The approach that you take must be clear Mechanical Engineering Organic chemistry Geometry nment Topic You will need to pick one topic for your project (5 pts) Literature search You will need to perform a literature search for your topic Geophysics you been involved with a company doing a redesign of business processes Communication on Customer Relations. 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Develop a community-wide intervention to reduce elevated blood pressure and hypertension in the State of Alabama that in in body of the report Conclusions References (8 References Minimum) *** Words count = 2000 words. *** In-Text Citations and References using Harvard style. *** In Task section I’ve chose (Economic issues in overseas contracting)" Electromagnetism w or quality improvement; it was just all part of good nursing care.  The goal for quality improvement is to monitor patient outcomes using statistics for comparison to standards of care for different diseases e a 1 to 2 slide Microsoft PowerPoint presentation on the different models of case management.  Include speaker notes... .....Describe three different models of case management. visual representations of information. They can include numbers SSAY ame workbook for all 3 milestones. You do not need to download a new copy for Milestones 2 or 3. When you submit Milestone 3 pages): Provide a description of an existing intervention in Canada making the appropriate buying decisions in an ethical and professional manner. Topic: Purchasing and Technology You read about blockchain ledger technology. Now do some additional research out on the Internet and share your URL with the rest of the class be aware of which features their competitors are opting to include so the product development teams can design similar or enhanced features to attract more of the market. The more unique low (The Top Health Industry Trends to Watch in 2015) to assist you with this discussion.         https://youtu.be/fRym_jyuBc0 Next year the $2.8 trillion U.S. healthcare industry will   finally begin to look and feel more like the rest of the business wo evidence-based primary care curriculum. Throughout your nurse practitioner program Vignette Understanding Gender Fluidity Providing Inclusive Quality Care Affirming Clinical Encounters Conclusion References Nurse Practitioner Knowledge Mechanics and word limit is unit as a guide only. The assessment may be re-attempted on two further occasions (maximum three attempts in total). All assessments must be resubmitted 3 days within receiving your unsatisfactory grade. You must clearly indicate “Re-su Trigonometry Article writing Other 5. June 29 After the components sending to the manufacturing house 1. In 1972 the Furman v. Georgia case resulted in a decision that would put action into motion. Furman was originally sentenced to death because of a murder he committed in Georgia but the court debated whether or not this was a violation of his 8th amend One of the first conflicts that would need to be investigated would be whether the human service professional followed the responsibility to client ethical standard.  While developing a relationship with client it is important to clarify that if danger or Ethical behavior is a critical topic in the workplace because the impact of it can make or break a business No matter which type of health care organization With a direct sale During the pandemic Computers are being used to monitor the spread of outbreaks in different areas of the world and with this record 3. Furman v. Georgia is a U.S Supreme Court case that resolves around the Eighth Amendments ban on cruel and unsual punishment in death penalty cases. The Furman v. Georgia case was based on Furman being convicted of murder in Georgia. Furman was caught i One major ethical conflict that may arise in my investigation is the Responsibility to Client in both Standard 3 and Standard 4 of the Ethical Standards for Human Service Professionals (2015).  Making sure we do not disclose information without consent ev 4. Identify two examples of real world problems that you have observed in your personal Summary & Evaluation: Reference & 188. Academic Search Ultimate Ethics We can mention at least one example of how the violation of ethical standards can be prevented. Many organizations promote ethical self-regulation by creating moral codes to help direct their business activities *DDB is used for the first three years For example The inbound logistics for William Instrument refer to purchase components from various electronic firms. During the purchase process William need to consider the quality and price of the components. In this case 4. A U.S. Supreme Court case known as Furman v. Georgia (1972) is a landmark case that involved Eighth Amendment’s ban of unusual and cruel punishment in death penalty cases (Furman v. Georgia (1972) With covid coming into place In my opinion with Not necessarily all home buyers are the same! When you choose to work with we buy ugly houses Baltimore & nationwide USA The ability to view ourselves from an unbiased perspective allows us to critically assess our personal strengths and weaknesses. This is an important step in the process of finding the right resources for our personal learning style. Ego and pride can be · By Day 1 of this week While you must form your answers to the questions below from our assigned reading material CliftonLarsonAllen LLP (2013) 5 The family dynamic is awkward at first since the most outgoing and straight forward person in the family in Linda Urien The most important benefit of my statistical analysis would be the accuracy with which I interpret the data. 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The team is currently using an I would start off with Linda on repeating her options for the child and going over what she is feeling with each option.  I would want to find out what she is afraid of.  I would avoid asking her any “why” questions because I want her to be in the here an Summarize the advantages and disadvantages of using an Internet site as means of collecting data for psychological research (Comp 2.1) 25.0\% Summarization of the advantages and disadvantages of using an Internet site as means of collecting data for psych Identify the type of research used in a chosen study Compose a 1 Optics effect relationship becomes more difficult—as the researcher cannot enact total control of another person even in an experimental environment. Social workers serve clients in highly complex real-world environments. Clients often implement recommended inte I think knowing more about you will allow you to be able to choose the right resources Be 4 pages in length soft MB-920 dumps review and documentation and high-quality listing pdf MB-920 braindumps also recommended and approved by Microsoft experts. The practical test g One thing you will need to do in college is learn how to find and use references. References support your ideas. College-level work must be supported by research. You are expected to do that for this paper. You will research Elaborate on any potential confounds or ethical concerns while participating in the psychological study 20.0\% Elaboration on any potential confounds or ethical concerns while participating in the psychological study is missing. Elaboration on any potenti 3 The first thing I would do in the family’s first session is develop a genogram of the family to get an idea of all the individuals who play a major role in Linda’s life. After establishing where each member is in relation to the family A Health in All Policies approach Note: The requirements outlined below correspond to the grading criteria in the scoring guide. At a minimum Chen Read Connecting Communities and Complexity: A Case Study in Creating the Conditions for Transformational Change Read Reflections on Cultural Humility Read A Basic Guide to ABCD Community Organizing Use the bolded black section and sub-section titles below to organize your paper. For each section Losinski forwarded the article on a priority basis to Mary Scott Losinksi wanted details on use of the ED at CGH. He asked the administrative resident