Dear Dr. Viechtbauer:
Thanks so much! Now all these issues are clear.
With best regards.
Qiang Yue
From: Viechtbauer Wolfgang (STAT)
Date: 2013-05-23 05:06
To: qiangmoon; r-help
Subject: RE: RE: [R] using metafor for meta-analysis of before-after studies
(escalc, SMCC)
The mean
qiangm...@gmail.com]
> Sent: Wednesday, May 22, 2013 20:38
> To: Viechtbauer Wolfgang (STAT); r-help
> Subject: Re: RE: [R] using metafor for meta-analysis of before-after
> studies (escalc, SMCC)
>
> Dear Dr. Viechtbauer:
>
> Thank you very much for sparing your precious t
), we can not use the percentage change
to calculate SMCC, but have to get the raw change first?
With best wishes.
Qiang Yue
From: Viechtbauer Wolfgang (STAT)
Date: 2013-05-21 10:09
To: Moon Qiang; r-help
Subject: RE: [R] using metafor for meta-analysis of before-after studies
(escalc, SMCC
Please see my answers below.
Best,
Wolfgang
> -Original Message-
> From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org]
> On Behalf Of Moon Qiang
> Sent: Thursday, May 16, 2013 19:12
> To: r-help
> Subject: [R] using metafor for meta-analysis of be
CC: r-help
Subject: Re: Re: [R] using metafor for meta-analysis of before-after studies
At 16:50 27/04/2013, Qiang Yue wrote:
>
>Hello, Michael.
>
>Thanks for your kind and rapid reply, and sorry
>for the inconvenience of characters.
>
>Yes, the primary studies repor
t;r-help
Subject: Re: [R] using metafor for meta-analysis of before-after studies
At 03:27 27/04/2013, Qiang Yue wrote:
>Hello, Dr. Viechtbauer.
>
>I am trying to perform a meta-analyis on a group
>of before-after studies using Metafor. I read
>your webpage including your correspondence
regards.
Qiang Yue
From: Michael Dewey
Date: 2013-04-27 07:28
To: qiangmoon; wvb
CC: r-help
Subject: Re: [R] using metafor for meta-analysis of before-after studies
At 03:27 27/04/2013, Qiang Yue wrote:
>Hello, Dr. Viechtbauer.
>
>I am trying to perform a meta-analyis on a group
>of
At 03:27 27/04/2013, Qiang Yue wrote:
Hello, Dr. Viechtbauer.
I am trying to perform a meta-analyis on a group
of before-after studies using Metafor. I read
your webpage including your correspondence with
Dr. Dewey
(https://stat.ethz.ch/pipermail/r-help/2012-April/308946.html),
who also con
Hello, Dr. Viechtbauer.
I am trying to perform a meta-analyis on a group of before-after studies using
Metafor. I read your webpage including your correspondence with Dr. Dewey
(https://stat.ethz.ch/pipermail/r-help/2012-April/308946.html), who also
conducted a similar study. These information
-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org]
> > On Behalf Of Michael Dewey
> > Sent: Thursday, April 05, 2012 13:04
> > To: mp.sylves...@gmail.com; r-help@r-project.org
> > Subject: Re: [R] using metafor for meta-analysis of before-after studies
>
Original Message-
> From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org]
> On Behalf Of Michael Dewey
> Sent: Thursday, April 05, 2012 13:04
> To: mp.sylves...@gmail.com; r-help@r-project.org
> Subject: Re: [R] using metafor for meta-analysis of before-after s
At 18:39 04/04/2012, mp.sylves...@gmail.com wrote:
Greetings,
I wish to conduct a meta-analysis for which the outcome is a continuous
variable measured on the same individuals before and after an intervention.
Hence, the comparison is not made between two groups, but within groups, at
diffrent ti
Greetings,
I wish to conduct a meta-analysis for which the outcome is a continuous
variable measured on the same individuals before and after an intervention.
Hence, the comparison is not made between two groups, but within groups, at
diffrent times.
Each study reports the mean outcome and S
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