Please use the article that I provide in the attachment and define which statistic was calculated, and why you believe it was the best choice for the question being asked of the data
Describe the articleâ€™s author(s) treat validity and reliability (internal and external) issues. Explain specifically why you believe this is appropriate, or what â€˜uncertaintyâ€™sâ€™ arise in your analysis.
Did the author(s) collect an adequate number of samples (enrollment) to assure effective â€˜powerâ€™ for the study? If not, why not?
Develop a narrative, referenced (outside of text) statement about what measures you could use in your study â€œ please see and read my first research proposal draft. Prepare this as a portion of your final proposal
CALCULATE what sample size that would be required to provide adequate POWER for your proposals chosen level of significance using your selected statistical method