PSY 325 Week 5 Final Paper

PSY 325 Week 5 Final Paper

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Week 5  Final Paper

 

Focus of the Final Paper

For your Final Paper you will conduct a research study critique. Utilize the instructor-approved topic that you selected in Week One of the course. Identify three to five quantitative research studies from peer-reviewed sources which were published within the last ten years that investigate this topic. Describe the statistical approaches (i.e., identify the variables and their type) used in each study and the interpretation of the results. Finally, present other statistical approaches that could have been used and, when appropriate, suggest alternative interpretations of the results. This process will allow you to apply the concepts learned in the course in the interpretation of actual scientific research.

The three to five quantitative research studies that have been conducted on your chosen topic must:

  1. Have a clearly stated research hypothesis.
  2. Utilize inferential statistical tests as part of the research study.
  3. Present the results of the statistical analysis.
  4. Interpret the results of the statistical analysis.
  5. Discuss the implications of the results of the study.

The Final Paper must contain the following sections:

  1. Introduction
  2. Methods
  3. Results
  4. Discussion

Introduction

This section will provide a general introduction and review relevant literature to the topic being studied. The research studies being critiqued will also be introduced in this section. In the Introduction, the research hypothesis associated with each study should also be clearly defined.

Methods

In this section, the research method and statistical approaches for each of the studies being critiqued will be presented. This section should include a discussion of all statistical tests conducted and other relevant information, such as the

sample size, and any assumptions noted on the part of the researcher. In this section, the student should describe of all of these factors, and suggest alternatives when they are appropriate.

Results

In this section, the results of the statistical tests performed in each of these studies should be presented and critiqued. It is appropriate in this section, to discuss limitations or to critique the interpretation of the results provided in each study.

Discussion

This section will compare the efficacy of the research studies that are presented on the topic chosen by the student. The strengths and weaknesses of each study should be mentioned in this section. Based on these studies, suggest future research directions. Additional forms of statistical analysis should be included as part of the suggested future research.

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PSY 325 Week 5 DQ 2 Chi-Square Test of Independence

PSY 325 Week 5 DQ 2 Chi-Square Test of Independence

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Chi-Square Test of Independence. Describe the chi-square test of independence. Give an example of a question that could be answered using this test. If you were to assemble a contingency table, what would be included in your rows and columns? Pick a cell of this contingency table and explain what the value in the cell would represent (you do not need to give the value, just explain what it would represent)? What hypothesis would be tested? What do you think the answer would be? Why?

PSY 325 Week 5 DQ 1 Chi-Square Goodness-of-Fit Test

PSY 325 Week 5 DQ 1 Chi-Square Goodness-of-Fit Test

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Chi-Square Goodness-of-Fit Test. Describe the chi-square goodness-of-fit test. Provide a detailed explanation of what this test measures, and how it is similar to and different from the independent t-test. How do you know when to use one analysis over the other? Provide a real-world example.

PSY 325 Week 4 DQ 2 Regression

PSY 325 Week 4 DQ 2 Regression

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Regression. Explain the relationship between correlation and regression. What do the two approaches have in common, and how are they different? In what types of research might one approach be preferred over the other? Explain and justify your response. Be sure that your discussion refers to both predictor and criterion variables as well as their role in the regression equation.

PSY 325 Week 4 DQ 1 Correlation

PSY 325 Week 4 DQ 1 Correlation

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Correlation. Much has been written about the relationship between a student’s S.A.T. test scores and their family’s income. Generally speaking, there is a strong positive correlation between income and S.A.T. scores. What might this tell you? Is this evidence that having a high family income causes one to have high S.A.T. scores? Is this evidence that high S.A.T. scores are a cause of high income? Or, does this tell you something else? If something else, what? In the course of your response, explain why correlation alone is rarely sufficient to demonstrate cause.

PSY 325 Week 3 DQ 2 Repeated Measures

PSY 325 Week 3 DQ 2 Repeated Measures

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Repeated Measures. Review Chapter 7 of your course text, which reviews inferential statistics that analyze experiments of repeated measures designs. For this discussion, search the Ashford University Library and find a scholarly, peer-reviewed study on any behavioral or social sciences topic that used a repeated measures design. Reference the study and summarize the research question, the subjects, and the variable(s) of interest. What statistical analysis was used and what were the results? Were there any statistically significant differences? What does it mean for the results to be statistically significant? What does this mean specifically for the differences assessed in this study? Cite your study using APA format as outlined in the Ashford Writing Center.

PSY 325 Week 3 DQ 1 Choose the Analysis

PSY 325 Week 3 DQ 1 Choose the Analysis

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Choose the Analysis. A researcher wishes to study the effect of a new drug on blood pressure. Would you recommend using a z-test, a t-test, or an A.N.O.V.A. for the analysis? Explain your answer. What would your choice of test depend on? For the test you select, explain your design and your comparison groups. Would the hypothesis be directional or non-directional? Would the test be one-tailed or two-tailed? What would be the null and what would be the alternative hypothesis?