Gregory E Gilbert

2 Questions 6 Answers 0 Followers

Questions related from Gregory E Gilbert

What is the correct interpretation for r the effect size?

I am aware of Cohen's and Sawilowsky's (2009) guidelines for interpretation of effect sizes. Are these applicable to r the effect size? If not, what is/are a reference(s) for those guidelines? TIA...

09 September 2019 4,636 3 View

I am involved in a multi-site trial and need to do power calculations. Is anyone aware of any resources discussing multi-site power calculations?

As described above, I need to calculate power for a multi-site trial. One of the chief reasons for doing a multi-site trial is to increase the sample size. However, if there is heterogeneity among...

07 July 2019 3,846 3 View