11 Nov How to Test the Strength of a Relationship Between Continuous Variables
Preparation
For this exercise, you will be using the data sets described throughout Chapter 10 in your Statistics for the Health Sciences text.
Download Data Files
Download the Data Files for Chapter 10 [ZIP].
Select the appropriate data sets for each statistical test you need to perform. Please take some time to explore each data set to see how it was constructed.
Complete Exercises
Use this week’s readings and multimedia resources to complete the following:
Pearson correlation test and scatterplot for data from the Total Support and Happiness study.
Spearman’s correlation test for memory and stress variables from the Memory and Medication study.
Note: Partial correlation testing should be understood, but no exercise is required.
File Submissions
For each exercise, upload the .jasp file with the correct analyses and output saved.
Upload a separate Word document that includes appropriate graphics or tables copied from the output and pasted into the Word document. Interpret and report the test results in properly formatted APA style.
Discussion Post
Use this week’s readings and your own personal research to complete the following:
Describe how the media and the public commonly misuse or misunderstand the correlation coefficient (r).
Describe the meaning and importance of r-squared to a public health professional.
Describe one or two of the challenges, knowledge gaps, or unanswered questions you found while completing these exercises.
Finally, cite, in APA format, at least one non-Capella resource (for example, a YouTube video, website, or article) that you found useful for this topic.
Response Guidelines
