Discussion: How to Find Differences Between Two Groups or Conditions

Preparation

For this exercise, you will be using the data sets described throughout Chapter 7 in your Statistics for the Health Sciences text.

Download Data Files

• Download the Data Files for Chapter 7 [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 exercises:

• Independent t test for memory study.
• Paired t test for two variables (PIQ and VIQ) from the Inflammatory Bowel Disease study.
• Mann-Whitney nonparametric test for the Fatigue study.

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:

• Post a summary (with references) of your understanding of the underlying meaning and practical application of effect size, in general, and Cohen's d, in particular, as it relates to your practice of public health.
• 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.