Meta-Analysis
Posted: Fri Jul 17, 2020 2:43 pm
Hi,
I'm currently conduction a Meta-Analysis and am a bit confused by how to interpret the result. The formula I usually use is I2 = 100% * (Q – df)/Q, but when calculating it myself, using the provided Q from the heterogeneity plot, I only get the same result when using the maximum likelihood and Fisher´s r to z.
I want to do a Hunter-Schmidt analysis though and use the raw correlation and was wondering why the I2 value differs so much and if the interpretation of the Q and I2 are still the same.
I also wasn't able to use the corrected correlation (its says I need the gsl package, but I couldn't find one in the library) and couldn't figure out how to solve that problem.
I attached two screenshots.
thank you,
Lia
I'm currently conduction a Meta-Analysis and am a bit confused by how to interpret the result. The formula I usually use is I2 = 100% * (Q – df)/Q, but when calculating it myself, using the provided Q from the heterogeneity plot, I only get the same result when using the maximum likelihood and Fisher´s r to z.
I want to do a Hunter-Schmidt analysis though and use the raw correlation and was wondering why the I2 value differs so much and if the interpretation of the Q and I2 are still the same.
I also wasn't able to use the corrected correlation (its says I need the gsl package, but I couldn't find one in the library) and couldn't figure out how to solve that problem.
I attached two screenshots.
thank you,
Lia