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Meta-Analysis

Posted: Fri Jul 17, 2020 2:43 pm
by lia
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

Re: Meta-Analysis

Posted: Sat Jul 18, 2020 2:34 am
by jonathon
hi lia,

i've forwarded your query to kyle hamilton, and hopefully he'll come here and respond.

cheers

jonathon

Re: Meta-Analysis

Posted: Sat Jul 18, 2020 9:27 am
by lia
thank you Jonathon!