Find an Article: Using the Kaplan Library, find a peer-reviewed journal article that employs the Pearson's correlation coefficient (r-value) as part of the data analysis for the study. To find your article look for words such as "relationship between," "predictive of," "correlation," "Pearson r-value," or "associated with" in the statement of the research hypothesis and/or title of the article. Paste a link to your article here and write out the full and appropriate APA reference to the article.
B. Review Results: Read and review the article. Write a paragraph describing the research question proposed in the article and the conclusion given. Include a critique of the article research results and whether you agree with the conclusion the authors have offered with respect to the correlation analysis.
C. Describe the Use of Correlation (r): Next, determine how and where the Pearson r value or "correlation" was employed in the analysis. What variables were examined and compared using correlation? What was the reported value of the correlation (r) for those variables, and what does the correlation describe about the relationship between the two variables?
D. Pulling it all together: Describe a time in your life that you used correlation to make a decision. What was the result? Did you wrongly feel that correlation was the same as causation?
Remember that your goal for Discussion Assignments is to ensure:
• Responses are on topic, original, and contribute to the quality of the Discussion.
•Responses make frequent, informed references to unit material.
•Responses are clearly written.
•A minimum of two or more responses per thread to classmates that are thoughtful and advance the Discussion are required.
Please try to make your initial posts no later than Sunday night to give your classmates an opportunity to respond. Be sure your post is grammatically correct, has been spell checked, and fully answers the question. Be sure to comment on and respond to your classmates'' postings throughout the week.
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We are all surrounded by statistics every day of our lives. An understanding of what these statistics mean or statistical literacy is crucial in today's world. It is important that you can generate basic descriptive statistics but it is also important that you be able to distinguish the "truth" when confronted by statistics produced by others. Do 9 out of 10 dentists really prefer XXXX toothpaste?
The Unit 3 Assignment is designed so that you can demonstrate your proficiency with basic descriptive statistics and interpretation of SPSS output.
Here are the objectives that are being assessed in the Unit 3 Assignment.
1.Given different sets of data the student will classify variables within that data set by level of measurement and whether the variable is continuous/discrete.
2.Given different variables the student will select the appropriate graph to display the variable and will use SPSS to create the graph with all appropriate labeling.
3.Given different variables the student will select the appropriate numerical descriptive measures to describe the central tendency and variability of the variables and will use SPSS to create the appropriate numerical output.
4.Given two variables from a data set the student will determine if there is a linear relationship between those variables using the Pearson Correlation Coefficient and will use SPSS to create a scatterplot of the two variables with all appropriate labeling.
5.Given output generated by SPSS the student will provide the correct interpretation of the output including the rationale for that interpretation.
You will find the Unit 3 Assignment and the Stat_Grades data set in Doc Sharing under Instructor-Graded Assignments. Be sure to download the project and the data set to your computer and save using a naming convention that includes your first and last name. When you have completed the Assignment please save your Word document and submit it to the Unit 3 Assignment Drop Box.