The nurse-researcher wants to evaluate the effectiveness of guided imagery in reducing stress prior to starting an IV. In the research proposal, several studies are reported in the review of the literature section about the use of biofeedback to reduce anxiety prior to invasive procedures.
Which significance level and sample size provide the greatest support for the findings reported?
p<.031; 54 subjects.
p<.01; 15 subjects.
p<.001; 73 subjects.
p=.301; 24 subjects.
The Correct Answer is C
Choice A rationale:
A significance level of p<.031 is relatively lenient and might result in a higher chance of obtaining statistically significant results by chance. A sample size of 54 subjects is moderate but may not provide the greatest support for the findings.
Choice B rationale:
A significance level of p<.01 is still relatively lenient, and a sample size of 15 subjects is relatively small. While p<.01 is more stringent than p<.031, it does not provide as strong statistical support as the options with lower p-values.
Choice C rationale:
This is the correct answer. A significance level of p<.001 is highly stringent and indicates a very low probability of obtaining the observed results by chance. A sample size of 73 subjects is relatively large, which enhances the reliability of the findings. This combination provides the greatest statistical support for the reported findings.
Choice D rationale:
A significance level of p=.301 is not stringent at all and would likely result in non-significant findings even with a small sample size of 24 subjects. This choice does not provide strong statistical support for the reported findings.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale:
Review the hospital's definition of workplace violence. Rationale: This is the most appropriate action because it addresses the need to clarify what constitutes workplace violence in the hospital setting. The findings from the convenience sample study suggest that nurses and those who received peer support were more likely to report workplace violence. By reviewing and potentially refining the definition, the hospital can ensure that incidents are accurately categorized and reported.
Choice B rationale:
Repeat the study at the nurse manager's hospital. Rationale: While repeating the study at the nurse manager's hospital could provide valuable local data, it may not be the most immediate and practical response. Reviewing the hospital's definition of workplace violence should be the first step to ensure accurate reporting and addressing the issue.
Choice C rationale:
Develop a system for reporting workplace violence anonymously. Rationale: Anonymously reporting workplace violence is an important step, but it doesn't directly address the issue of clarifying the definition of workplace violence, which is the primary concern based on the study findings.
Choice D rationale:
Encourage peer support among the nursing staff to report issues. Rationale: Encouraging peer support is a positive step in creating a supportive workplace culture, but it may not be directly related to the need to review and clarify the definition of workplace violence.
Correct Answer is D
Explanation
Choice A rationale:
Visiting local hospital waiting rooms and interviewing subjects may provide anecdotal information but may not be representative of the general population's awareness of the nursing shortage. It can be influenced by the specific demographics and characteristics of the people in the waiting rooms.
Choice B rationale:
Listening to a radio talk show host's interview with a nurse recruiter provides information from a specific source and may not represent the views of the general population. It is limited to the opinions and perspectives presented in the interview.
Choice C rationale:
Reading survey results published in a nursing journal about nurses' frustrations with short-staffing provides insights into nurses' perspectives but does not necessarily reflect the awareness of the general population. It is focused on the nursing profession and not the broader public.
Choice D rationale:
Reviewing the Gallup organization's latest public opinion poll on the topic is the most reliable and accurate approach to assess the general population's awareness of the nursing shortage. Gallup polls typically use scientific sampling methods to gather data from a representative sample of the population, making their findings more generalizable and reliable.a
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