Sharon Tracy

2 Questions 7 Answers 0 Followers

Questions related from Sharon Tracy

What are the implications of a study reporting a power calculation, and the result is statisically signficant, but less than the effect size?

I work in a field where the authors will say they performed a power calculation at 80% power and alpha=0.05, and the effect size of 1 mm and standard deviation of 1.7 mm. They then report a...

09 September 2014 1,230 12 View

How does one correctly interpret odds ratio from case-control studies?

I am working on a project where the odds ratio for a case-control study is reported as 0.5 [95% CI: 0.3 to 0.9]. One interpretation is that "the case patients had lower odds of the exposure than...

07 July 2014 9,391 24 View