Using one of the experimental studies that tested an intervention that you used previously in the course or a different study, complete these tasks and answer these questions:

• Provide the purpose/objective/aim of the study in the exact words used in the study.
• From the purpose/objective/aim of the study, identify:
  • The population
  • The intervention (independent variable)
  • The outcome (dependent) variable
    • What is the level of measurement of the DV (nominal, ordinal, interval, or ratio)? Provide the rationale based on the instrument used to measure the DV. What type of variable is the DV (categorical or continuous)?
• Write the null and alternative hypotheses in words and equation format for one of the inferential tests related to the purpose of the study.
• Give the values for the descriptive statistics for the outcome variable.
• What inferential test was used to test the effectiveness of the intervention? Give the rationale for this test based on the level of measurement of and the descriptive statistic reported for the outcome variable.
• What are the assumptions for this test (cite the source where you find them)? Are they met in this study? Provide information given in the study that can be used to determine whether each assumption is or is not met. What information is not given?
• Using the p-value rule, was the intervention effective based on statistical analysis? State the rule and the decision about the null hypothesis.
• Based on the decision related to the null hypothesis, what type of statistical error is possible? What are possible causes of this error? What did the researcher do to minimize the possible error?
• Identify at least two of the common statistical errors listed in Chapter 15 in the textbook to explain what the researcher could have done to avoid these mistakes and ensure the validity of the findings.
•  Using the Balkin & Lenz (2021), Barria (2023) or Ranganathan et al. (2016) article plus your clinical knowledge of the intervention and outcome variables, critical thinking, and your experience with your patients and setting, do the results of this study have clinical significance? Is the difference in the value of the descriptive statistic large enough to predict that the benefit of adopting the intervention would justify the cost (not just money) and effort of implementing the intervention? Does the clinical significance of the results of this study match the statistical significance? Explain your answer.

 This upcoming task will ideally, but not necessarily, be focused on a topic you are interested in as a possible topic for the project you will conduct. The purpose of this project is not for you to draft parts of the project you will conduct. The purpose is for you to demonstrate how to formulate a data analysis plan that will fulfill the purpose of a practice change project. Here is the outline of part of the content of a proposal for a hypothetical DNP project with a focus on statistical analysis. DNP projects are a type of translational research – translating previous research into practice. For this task, you should use a previously published project or research study as the basis for the methodology of a hypothetical project. When this is done in an actual project, the previous research methodology is adopted to the specific setting, patients, and time frame for the project. Cite the research study that you are using as a basis for your proposal Use this outline to organize your contribution this week. 

• State the purpose of the project. Cite the research that is the basis for the proposal.
• Transform the purpose statement into a PICOT-formatted project question (See the Gallagher & Melnyk, 2019, editorial for additional information cited under the Instructional Resources for this week.).
  • P = Population – who will be included in the project and how many groups will be studied in the project.
  • I = Intervention – the treatment or intervention that will be manipulated or changed during the implementation phase of the project.
  • C = Comparison – the usual treatment or intervention used prior to the project.
  • O = Outcome – the characteristic that will be measured to determine the effect of the intervention.
    • Find or identify a data collection instrument to measure this variable and give the name of the instrument.
    • Indicate what type of variable this instrument collects (categorical or continuous) and what level of measurement it is (nominal, ordinal, interval, variable).
  • T = Time: Total time for data collection from the start of data collection to the end. 
• Data analysis – Descriptive statistics:
  • Identify the descriptive statistics that will be used to organize and summarize the data collected that will fulfill the purpose of the study – choose one of the descriptive statistics listed below and give the rationale for your choice based on the type of data produced by the data collection instrument:
    • Measure of central tendency with measure of variability and range.
    • Frequency with percentages.
• Describe the most effective method to use for illustrating the descriptive statistics with a graph or histogram.
• Data analysis – inferential statistic:
  • Name the most appropriate inferential statistic to use to fulfill the purpose of the study:
  • Give the rationale for your choice based on the purpose statement, PICO-formatted project question, and the type of data produced by the data collection instrument.
  • What are the assumptions for this test?
• Write the null and alternative hypotheses for the inferential statistic in words and in an equation using the same designations of the population, variables, and time that were used in the purpose statement and PICOT-formatted project question.
• How will the effect size of the findings be determined? Give the rationale for your choice based on the inferential test used.

attached as a file. thanks!

 

• Identify and describe at least two competing needs impacting your selected healthcare issue/stressor.
• Describe a relevant policy or practice in your organization that may influence your selected healthcare issue/stressor.

 

• Explain the specific socioeconomic, spiritual, lifestyle, and other cultural factors associated with the patient you were assigned. Be specific.