[R-meta] metafor: standardized mean change using raw score standardization
@pyr|don@@|@||@ @end|ng |rom tum@de
Wed Aug 7 11:18:19 CEST 2019
Hello to all,
I would like to calculate standardized mean change with raw score standardization ("SMCR") using the escalc().
Therefore: sd1i=pre-test standard deviation, m1i= mean change score or post-test mean and m2i=0 or pre-test mean, respectively.
As far as I understood, the arguments sd2i and ri are not needed for the calculations, but they are required in escalc.
Could I use sd2i=0 and ri=0? Do they influence the calculations?
Thank you very much in advance!
All the best,
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