NURS 8200 Week 5 Discussion: t Tests and ANOVA in Clinical Practice

NURS 8200 Week 5 Discussion: t Tests and ANOVA in Clinical Practice SAMPLE

I chose schizophrenia as the health issue, and my study question was: Can vitamin D be utilized to lessen the cognitive, behavioral, and positive symptoms of schizophrenia? Another theory is that vitamin D protects the nervous system.

Discussion Correlations for NURS 8200

grey matter.

According to Wu et al. (2020), schizophrenia is a complicated mental condition marked by issues with emotion, thinking, and behavior. There are regional differences in schizophrenia prevalence (Neriman et al., 2021). There are numerous theories as to what causes schizophrenia. Low 25OHD levels during the neonatal period, as well as low maternal vitamin D levels in the fetus, according to one idea, increase the risk of schizophrenia later in life (Berridge, 2018). Because the human body can only generate vitamin D, the amount produced is affected by age, skin color, season, ethnicity, and time of sun exposure (Neriman et al., 2021).

The lack of a hypothesis

Testing and rejecting the null hypothesis is a common component of quantitative research, according to Stanton (2020), but few organizational researchers are prepared to confirm the null or test an equivalency hypothesis (for instance, that two group means are nearly identical). The primary goal of the null hypothesis significance test (NHST) is to reject the null hypothesis in order to gather evidence in favor of an alternative hypothesis (Stanton, 2020). Is it true that taking vitamin D supplements reduces the chances of developing schizophrenia? In the study of vitamin D use in schizophrenic patients, the null hypothesis is used.

The findings should be summarized.

The study I chose is a single group quasi-experimental design that seeks to answer the question, “Do nurses retain education and knowledge about evidence-based practices when they are assessed for retention prior to receiving education, immediately after receiving education, and one year later?” Cosme, Milner, and Wonder (2018) A total of 62 junior-year nursing students from a single northeastern college participated in the study. The Evidence-Based Practice Knowledge Assessment in Nursing was used as a data source (EKAN). The study was only completed by 57 students. According to inferential statistics, after one year, the students’ education and knowledge would be maintained, allowing the institution to establish a standard. According to the data, the majority of students advanced and gained knowledge during the one-year evaluation period (Cosme et al., 2018). The dependent variable was compliance with education and assessment, while the independent variable was exposure to extra education relevant to evidence-based practice knowledge that met the textbook’s standards (Gray, Grove, & Sutherland, 2017).

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Inferential statistics enable researchers to apply the data they gather and the conclusions they draw from a particular sample to a larger population. As the name implies, inferential statistics focus on inferring whether there is a relationship between two or more variables. These . t Tests are part of a group of statistical tests that test hypotheses; in fact, it is necessary to formulate a hypothesis in order to use a t test, because the results of the test can only be interpreted in the context of a scientific hypothesis.

Inferential statistics such as t tests work well for comparing two groups. Although mathematically equivalent to the t test, ANOVA allows for the comparison of more than two groups. Therefore, when three or more groups are involved, the ANOVA should be used.

In this week’s Discussion, you are asked to locate a current research article that utilizes either a ttest or ANOVA analysis. You provide a summary of the research study and of the study’s application to evidence-based practice. You also examine the article’s use of a t test or ANOVA and how either of those statistical analysis tools helped to inform the article’s conclusions and recommendations.

• Consider some of the important issues in health care delivery or nursing practice today. Bring to mind the topics to which you have been exposed through previous courses in your program of study, as well as any news items that have caught your attention recently. Select one topic to consider for this Discussion.
• Next, review journal, newspaper, and Internet articles that provide credible information on your topic. Then, select one research article on which to focus that used inferential statistical analysis (either a t test or ANOVA) to study the topic.
• With information from the Learning Resources in mind, evaluate the purpose and value of the research study discussed in your selected article and consider the following questions:
  • Who comprised the sample in this study?
  • What were the sources of data?
  • What inferential statistic was used to analyze the data collected (t test or ANOVA)?
  • What were the findings?
• Ask yourself: How did using an inferential statistic bring value to the research study? Did it increase the study’s application to evidence-based practice?

By Day 3 OF t Tests and ANOVA in Clinical Practice

Post a cohesive response that addresses the following:

• Identify the topic you selected in the first line of your posting.
• Summarize the study discussed in your selected research article and provide a complete APA citation. Include in your summary the sample, data sources, inferential statistic utilized, and findings.
• Evaluate the purpose and value of this particular research study to the topic.
• Did using inferential statistics strengthen or weaken the study’s application to evidence-based practice?

Read a selection of your colleagues’ postings.

By Day 6 OF t Tests and ANOVA in Clinical Practice

Respond to at least two of your colleagues 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.

Return to this Discussion in a few days to read the responses to your initial posting. Note what you learned and/or any insights you gained as a result of the comments made by your colleagues.

Be sure to support your work with specific citations from this week’s Learning Resources and any additional sources.

Post your responses to the t Tests and ANOVA in Clinical Practice Discussion based on the course requirements.

Your t Tests and ANOVA in Clinical Practice Discussion postings should be written in standard edited English and follow APA guidelines as closely as possible given the constraints of the online platform. Be sure to support your work with specific citations from this week’s Learning Resources and additional scholarly sources as appropriate. Refer to the Essential Guide to APA Style for Walden Students to ensure your in-text citations and reference list are correct. Initial postings must be 250–350 words (not including references).

By Day 7 of Week 9

Continue to work on this Assignment, assigned in Week 2 and due in Week 9. Consider the levels of measurement of the variables in your selected research article. Did your selected research article use inferential statistics? If so, did the statistics support the study? If not, could the statistics have provided any additional support? Consider these questions as you continue to evaluate your research article.

You are not required to submit this assignment this week.

This week, you explore key statistical concepts related to data and problem solving through the completion of the following exercises using SPSS and the information found in your Statistics and Data Analysis for Nursing Research textbook. The focus of this assignment is to become familiar with the SPSS data analysis software, and to develop an understanding of how to calculate and summarize inferential statistics using t tests and ANOVA.

To prepare:

• Review the Statistics and Data Analysis for Nursing Research chapters that you read as a part of the Week 5 Learning Resources. As you do so, pay close attention to the examples presented—they provide information that will be useful for you to recall when completing the software exercises. You may also wish to review the Research Methods for Evidence-Based Practice video resources.
• Refer to the  and follow the directions to perform a t test.
• Download and save the  data set. You will open the data file in SPSS.
• Compare your data output against the tables presented in the .
• Formulate an initial interpretation of the meaning or implication of your calculations.
• Refer to the  and follow the directions to perform an ANOVA using the  data set.
• Compare your data output against the tables presented in the .
• Formulate an initial interpretation of the meaning or implication of your calculations.

To complete:

• Complete the Part I, Part II, and Part III steps and Assignments as outlined in the  page.
• Complete the steps and Assignment as outlined in the  page.
• Create one document with your responses to the t test exercises and the ANOVA exercises.

By Day 7

Submit this Assignment.

Submission and Grading Information

To submit your completed Assignment for review and grading, do the following:

• Please save your Assignment using the naming convention “WK5Assgn3+last name+first initial.(extension)” as the name.
• Next, from the Attach File area, click on the Browse My Computer button. Find the document you saved as “WK5Assgn3+last name+first initial.(extension)” and click Open.
• If applicable: From the Plagiarism Tools area, click the checkbox for I agree to submit my paper(s) to the Global Reference Database.
• Click on the Submit button to complete your submission.

This week, you analyzed the purpose and value of t tests and ANOVA and interpreted/reported the results. You also differentiated between independent and dependent t tests.

Next week, you will focus on statistical methods that examine correlation and explore how the correlation statistic is utilized in health care and evidence-based nursing practice as a means of examining relationships.