Assignment: General Respiratory ICU
NOW FOR AN ORIGINAL PAPER ASSIGNMENT:Assignment: General Respiratory ICU
Question 7
3.25 / 3.25 pts
You read a research article on a study aimed at reducing central line associated blood stream infections (CLBSIs). The authors report that a detailed protocol using chlorhexidine was statistically significant in reducing CLABSIs by 98% in their study sample of 5678 Neonatal Intensive Care Unit (NICU) patients. Which of the following statements is accurate?
The findings from the CLABSI study can be applied or transferred to a neonatal intensive care unit at your hospital to reduce CLABSIs.
While the findings are impressive and statistically significant, further research is warranted in NICU patients.
The findings can be generalized to an adult ICU in a Magnet hospital in Beirut, Lebanon.
The findings from this study can be generalized to a general Respiratory ICU unit at the same hospital.
Question 8
3.25 / 3.25 pts
When reviewing research study results aimed at reducing fall rates among elderly patients at hospital X, which statement most likely indicates representativeness of the sample related to the general target population at large?
The sample consisted of 50 elderly patients on Central Nervous System depressant drugs that put the study patients at risk for falls.
The sample consisted of a randomly selected subset of 6000 elderly patients over a 1-year time frame.
The sample consisted of 200 elderly outpatients on a strict health regimen consisting of probiotics, exercise and adequate nutrition and not taking any prescription drugs.
The sample consisted of 100 elderly patients whom ranged in age from 65-70 years in the study over a 1 week period.
Question 9
3.25 / 3.25 pts
You have been asked to select a random sample of 1000 patients in your 5-hospital system for a proposed study aimed at reducing hospital readmissions. Each of the 5 hospitals has 600 beds. Which of the following approaches is best?
You spend a week going from room to room in each hospital, explaining the study to each patient and asking for volunteers for the study, making a list of the 1000 patient names who agree to participate.
You ascertain a list of all patient names and room numbers from each of the 5 hospitals and call each patient room asking for patient volunteers for the study.
You post flyers at the nursing stations of each unit at all 5 hospitals and explain the proposed study to the nursing staff. The nursing staff will recruit patients and contact you with the names and contact information for each patient who is interested up to 1000.
You obtain a list of all patient names in each of the 5 hospitals in the system and assign each name a numerical value. Using a table of random numbers, you select 1000 numbers (patients).
Question 10
3.25 / 3.25 pts
A nurse colleague wants to survey nurses on his unit to determine the level of RN satisfaction. He proposes to administer a pre-test survey and design a practice change based on the results. He then proposes to administer a post-test to determine if the new intervention was effective. You recognize right away that the sample will be a nonprobability, nonrandom or convenience sample. All of the statements below are accurate EXCEPT:
A convenience sample in this case is appropriate because the nurse simply wants to make an effective practice change on his unit directly.
Findings from this proposed study cannot be generalized to the larger population of RNs.
Findings from this proposed study can be transferred to other units in the hospital.
The proposed study will not be reliable or valid because the sample will not be randomly selected.
NR714 Week 7 Module 2 Quiz Latest 2017 November (all correct answers)
Question 1
3.25 / 3.25 pts
In the hospital research committee, the group discusses an idea for a research proposal aimed at improving patient outcomes related to prevention of hospital acquired dermal ulcers. One of the team members asks why a power analysis must be done. What is the best response?
The power analysis must be conducted for every research study to meet national regulations.
The power analysis is not a requirement and foregoing this analysis will not have an impact on the study.
The power analysis is not necessary as long as the research investigator makes sure as many subjects are included in the study as possible.
The primary goal of the power analysis is to decide how large a sample is needed to enable statistical judgments that are accurate and reliable.
Question 2
3.25 / 3.25 pts
You are reading a research article on a nursing study directed at gathering knowledge from 100 new mothers on the benefits of breast feeding. You see that a Likert scale was used where 1 indicates no knowledge and 5 indicates a lot of knowledge. The data reveals sixty-seven 1s and twenty-eight 5s, with three 2s and two 4s. You know that this study as a wide _______ of scores.
percentage
standard deviation
variance
range
Question 3
3.25 / 3.25 pts
As you read more closely into the study results, you see that the scores of the new nursing mothers are very far from the mean or average score. You think back on your research class and realize that that this means that the study scores have a large _______________.
range
standard deviation
variance
power
Question 4
3.25 / 3.25 pts
Another study results show all of the scores in the center of the distribution curve. In other words, the average or mean scores are 50%. This means that the study has very little or limited (select all that apply)
Range
Skewness
Variability
Reliability
Question 5
3.25 / 3.25 pts
You are talking to a nurse colleague who is proposing to conduct an innovative research study using warming blankets on patient pre-surgery to determine if post-operative complications are reduced. He tells you that he does not plan to perform a power analysis because he is including all patients scheduled for surgery over the next 6 months which will give him a sample size well over 4000 subjects. Which of the responses below is the most appropriate?
“Performing a power analysis helps to make sure that more subjects are not included than is necessary because excess resources may be used with little added benefit to the study.”
“That is great that you have such a high number of subjects, as the large number of subjects will increase the reliability of your study.”
“Too many subjects will decrease the reliability of the study, regardless of cost.”
“That is a good sample size, but did you get approval for subject payment to make sure there is enough money in the research budget?”
Question 6
3.25 / 3.25 pts
You overhear nurse colleagues talking just before an Institutional Review Board (IRB) meeting? They are debating as to which topic is more critical in research, cost effectiveness or scientific usefulness of the study. As a more seasoned researcher, you join the conversation in order to help resolve the debate. Which of the responses below is best?
“Scientific usefulness in research far outweighs cost effectiveness.”
“Cost effectiveness is paramount. After all, without financial stewardship and resources, the study cannot effectively be conducted.”
“Neither of those issues are important. Cost should not impede scientific inquire. Further, we will not know how useful the research is until we get results.”
“You are both correct. Cost effectiveness in research is equally as important as scientific usefulness.”
Question 7
3.25 / 3.25 pts
You are leading the Research Council and part of the agenda is to report to the team that a power analysis will be conducted prior to starting the study. The rationale for conducting the power analysis is to (Select all that apply)
decide how large a sample is needed to enable statistical judgments that are accurate and reliable.
avoid making a Type II Error.
avoid having a sample larger than necessary.
avoid making a Type I Error.
Question 8
3.25 / 3.25 pts
You have been asked to present the four major measures of variability to your hospital research team, including: (Select of all Apply)
range and interquartile range
skewness
variance
standard deviation
Question 9
3.25 / 3.25 pts
A Nurse Practitioner tells you that she wants to conduct a research study and set the alpha level to <0.05. Which type of error is she trying to avoid?
Type II Error – she will have a less than 5% chance of incorrectly accepting the null hypothesis
Type I Error – she will have a 95% chance of incorrectly rejecting the null hypothesis
Type I Error – she will have a less than 5% chance of incorrectly rejecting the null hypothesis
Type II Error – she will have a 95% chance of incorrectly accepting the null hypothesis
Question 10
3.25 / 3.25 pts
A colleague tells you that she wants to conduct a study, but is afraid of incorrectly rejecting the null hypothesis. In other words, she does not want to make an error and reject the notion that the medication is not effective (accepting that a new chemotherapeutic agent is effective when it is not). This could mean that a cancer patient is taking a drug that is not killing cancer cells which would be detrimental to the patient. This nurse is justified in her fear of making which type of error?
Assignment: General Respiratory ICU
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