[R-meta] Help with understanding the meta objecct

Jan Pohl j@n@poh| @end|ng |rom tu-dre@den@de
Thu Jul 20 14:45:43 CEST 2023


Good day everybody,

I have a question about accessing the metacor object in the meta 
package. I have a meta-analysis where before now I just used the values 
as seen in the output, e.g., in this example I reported 0.3369 as my 
effect size:

Number of studies combined: k = 88
Number of observations: o = 5306

                         COR            95%-CI     z  p-value
Fixed effect model   0.3301 [ 0.3052; 0.3544] 24.35 < 0.0001
Random effects model 0.3369 [ 0.2390; 0.4281]  6.43 < 0.0001
Prediction interval         [-0.5375; 0.8622]

Now I want to create some custom plots where I want to use values like 
the ES from this object. However, my problem is that I cannot find the 
ES value in the list. So, I am wondering if the value is somewhow 
transformed or if I misunderstood something?

I would greatly appreciate if somebody could help me shed light on this 
problem. Thank you very much already in advance.

Kind regards,

Jan

-- 
Jan Pohl
Technische Universität Dresden
Faculty of Psychology
Zellescher Weg 19
01069 Dresden
Jan.Pohl using tu-dresden.de


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