NURS 8200 Research Methods for Evidence-Based Practice Week 6: Quantitative Methods: Correlations

Get NURS 8200 Research Methods for Evidence-Based Practice Week 6: Quantitative Methods: Correlations essay assignment help

How many commercials or ads have you seen that state, “Breakfast is the most important meal of the day!” or that “Children who eat a nutritious breakfast earn better grades in school”? Research studies do indicate such a correlation; however, how could you as a researcher be certain that eating a balanced breakfast is related to children performing well academically? Perhaps parents who make sure their children eat a healthy breakfast are more likely to help their children with their schoolwork. Or perhaps the types of children who choose more wholesome breakfast foods are simply smarter or more motivated in school than their counterparts who prefer inadequate or unhealthy breakfasts.

This week focuses on statistical methods that examine correlation. You explore how the correlation statistic is utilized in health care and evidence-based nursing practice as a means of examining relationships. You also consider the process of reporting your research results based on statistical significance, correlation, and the risk or possibility of error in your study.

Learning Objectives

Students will:

NURS 8200 Research Methods for Evidence-Based Practice Week 6: Quantitative Methods: Correlations

  • Construct a meaningful research question and hypothesis appropriate for a correlational statistic
  • Analyze, interpret, and report bivariate statistics

Does caffeine cause cancer? Is autism caused by childhood immunizations? What is the relationship between eating sugary sweets at night and weight gain? It is often helpful to determine and explore relationships between variables. This is especially important in health care, a field dedicated to providing quality care for patients and improving health outcomes. Examining relationships between variables forms the basis for correlational statistics.

In this Discussion, you identify a health care or nursing practice problem that can be explored with correlational statistics and formulate a research question for exploring that problem. You also develop a null and alternate hypothesis, determine the variables related to the study, and predict relationships between the variables based on what you know of correlational statistics.

To prepare:

  • Review this week’s Learning Resources and the “Correlation” tutorial focusing on the types of research questions that can be answered using a correlational statistic.
  • Brainstorm a number of health care delivery or nursing practice problems that could be explored using correlational statistics. Then, select one problem on which to focus for this Discussion.
  • Formulate a research question to address the problem and that would lead you to employ correlational statistics.
  • Develop a null hypothesis and alternate hypotheses.
  • Ask yourself: What is the expected direction of the relationship?

By Day 3

Post a cohesive response that addresses the following:

  • Identify your selected problem in the first line of your posting and post your research question.
  • Post a null hypothesis and alternate hypotheses for your research question and identify the dependent and independent variables that would be associated with the research study.
  • Provide your prediction for the expected relationship (positive or negative) between the variables. Why do you think that sort of relationship will exist? What other factors might affect the outcome?

Read a selection of your colleagues’ postings.

By Day 6

Respond to at least two of your colleagues, critiquing their research question and hypotheses and pointing out factors that may influence the strength of the correlation of the variables. Be sure to provide a rationale for your responses in one or more of the following ways:

  • Ask a probing question, substantiated with additional background information, evidence, or research.
  • Share an insight from having read your colleagues’ postings, synthesizing the information to provide new perspectives.
  • Offer and support an alternative perspective using readings from the classroom or from your own research in the Walden Library.
  • Validate an idea with your own experience and additional research.
  • Make a suggestion based on additional evidence drawn from readings or after synthesizing multiple postings.
  • Expand on your colleagues’ postings by providing additional insights or contrasting perspectives based on readings and evidence.

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