[R-meta] Confidence intervals for effect sizes in pretest posttest control group designs

[Viechtbauer, Wolfgang (SP)]

Hi Célia,

An approximate 95% CI can be obtained with:

dat$yi + c(-1,1) * qnorm(.975) * sqrt(dat$vi)

Best,
Wolfgang

-----Original Message-----
From: R-sig-meta-analysis [mailto:r-sig-meta-analysis-bounces using r-project.org] On Behalf Of Célia Sofia Moreira
Sent: Sunday, 12 May, 2019 23:18
To: r-sig-meta-analysis using r-project.org
Subject: [R-meta] Confidence intervals for effect sizes in pretest posttest control group designs

Dear all,

I would like to compute 95% confidence intervals for the effect sizes in a
pretest posttest control group design, such as the "Morris example"
presented in:
http://www.metafor-project.org/doku.php/analyses:morris2008

Can you please tell me how to do this?

Kind regards,
CSM