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:
This study is experimental because it involves the manipulation of an independent variable (participation in a specified 3-month strenuous exercise program) to assess its impact on a dependent variable (Hemoglobin A1c findings) in two groups (participants and non-participants).
Choice B rationale:
An exploratory study typically aims to explore a new topic or area and may involve surveys, interviews, or observations to generate hypotheses and ideas. It does not necessarily involve an experimental design.
Choice C rationale:
A correlational study examines the relationship between variables but does not involve experimental manipulation of an independent variable.
Choice D rationale:
A developmental study typically investigates changes or development over time, such as in child development, but does not necessarily involve experimental manipulation of variables.
Correct Answer is B
Explanation
Choice B rationale:
Apply for institutional review board (IRB) approval for a study involving human subjects is the most important step before conducting the experimental study. IRB approval is crucial to ensure that the research is conducted ethically, with proper consideration for participant safety and rights. It also assesses the study's design, methods, and consent process to protect participants.
Choice A rationale:
Determining what instruments are available to measure the independent variable is essential but typically follows the IRB approval process. It is part of the research planning and implementation stages.
Choice C rationale:
Obtaining release forms from parents allowing their children to participate in the study is important but is a step that follows IRB approval. Informed consent processes are typically reviewed by the IRB.
Choice D rationale:
Reviewing the literature to determine if other research projects have addressed this issue is valuable but is part of the research planning and background information gathering stage. While it is important, obtaining IRB approval takes precedence as it ensures the ethical conduct of the study.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.