[R-meta] Results from the meta-regression

-----Original Message-----
From: R-sig-meta-analysis [mailto:r-sig-meta-analysis-bounces at r-project.org] On
Behalf Of Tarun Khanna
Sent: Tuesday, 23 February, 2021 22:04
To: r-sig-meta-analysis at r-project.org
Subject: [R-meta] Results from the meta-regression

Dear All,

I ran a meta regression using the rma and rma.mv function. The exact command is
below:

rma(yi=zi, vi = vi, method="REML", data = dfinc, test = "knha", mods = ~
                        `Commitment strategies`+ Gamification+
                         Randomisation + StatsMethod + StudyDesign +
                         Weather +
                         OptedIn + interventionTreatmentPeriod +
                         Region + StudyYear )

I re-ran the code again after a while and it seems that the results are slightly
different. There are slight differences in the estimated coefficients and
variances. As far as I can tell I didn't change the underlying data. Is it
possible that results change because of the function that I am using here? Or must
it be some change in the code or data?

Best
Tarun

Tarun Khanna
Research Associate

Hertie School

Friedrichstra?e 180
10117 Berlin ? Germany
khanna at hertie-school.org ? www.hertie-school.org<http://www.hertie-school.org/>