Lukasz Stasielowicz
Osnabr?ck University
Institute for Psychology
Research methods, psychological assessment, and evaluation
Seminarstra?e 20
49074 Osnabr?ck (Germany)
Am 28.02.2022 um 19:45 schrieb r-sig-meta-analysis-request at r-project.org:
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> Today's Topics:
>
> 1. Re: methods for assessing publication bias while accounting
> for dependency (Viechtbauer, Wolfgang (SP))
> 2. Re: Heterogeneity and moderated mediation (Michael Dewey)
> 3. Re: Meta-analysis of prevalence data: back-transformation
> and polytomous data (Viechtbauer, Wolfgang (SP))
> 4. Re: Importing Correlations from PDF to table format (Kiet Huynh)
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 28 Feb 2022 13:31:46 +0000
> From: "Viechtbauer, Wolfgang (SP)"
> <wolfgang.viechtbauer at maastrichtuniversity.nl>
> To: Brendan Hutchinson <Brendan.Hutchinson at anu.edu.au>,
> "r-sig-meta-analysis at r-project.org"
> <r-sig-meta-analysis at r-project.org>
> Subject: Re: [R-meta] methods for assessing publication bias while
> accounting for dependency
> Message-ID: <2377cc39202643a0ac5d87a34fce3cda at UM-MAIL3214.unimaas.nl>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Dear Brendan,
>
> Using the 'regression method' approach could also be regarded as a form of sensitivity analysis, when focusing on the model intercept as an estimate of the 'adjusted' effect (as in the PET/PEESE methods). In fact, if I recall the findings from various simulation studies, this seems to work better than the trim and fill method.
>
> One can also aggregate the estimates to the study level (or to whatever level needed so that the resulting aggregated values can be assumed to be independent) and then run methods that assume independence on these aggregated data (including trim and fill).
>
> Another recent method by James Pustejovsky: https://www.jepusto.com/talk/stanford-qsu-2022-selective-reporting/
>
> Some other relevant readings:
>
> Fern?ndez-Castilla, B., Declercq, L., Jamshidi, L., Beretvas, S. N., Onghena, P. & Van den Noortgate, W. (2021). Detecting selection bias in meta-analyses with multiple outcomes: A simulation study. The Journal of Experimental Education, 89(1), 125-144. https://doi.org/10.1080/00220973.2019.1582470
>
> Rodgers, M. A. & Pustejovsky, J. E. (2021). Evaluating meta-analytic methods to detect selective reporting in the presence of dependent effect sizes. Psychological Methods, 26(2), 141-160. https://doi.org/10.1037/met0000300
>
> P.S.: Please use meaningful post titles to make the mailing list archives more useful.
>
> Best,
> Wolfgang
>
>> -----Original Message-----
>> From: R-sig-meta-analysis [mailto:r-sig-meta-analysis-bounces at r-project.org] On
>> Behalf Of Brendan Hutchinson
>> Sent: Friday, 25 February, 2022 14:15
>> To: r-sig-meta-analysis at r-project.org
>> Subject: [R-meta] (no subject)
>>
>> Dear mailing list,
>>
>> I have a couple of minor questions regarding methods for assessing publication
>> bias while accounting for dependency.
>>
>> To my understanding, there is no means of running a publication bias analysis,
>> such as trim and fill, with a multilevel meta-analytic model in R (or a model in
>> which dependency issues need be accounted for). I am aware that one can use a
>> regression method, such as regressing the standard error onto the summary
>> estimate, within a multi-level model (this is fairly straightforward using
>> rma.mv(), for example). However, what about methods for assessing the robustness
>> of findings, if publication bias is a concern (such as trim and fill), while also
>> accounting for dependency?
>>
>> The best I have found is a recent package "PublicationBias" by Mathur and
>> VanderWeele (10.1111/rssc.12440).
>>
>> I am wondering if anyone has any recommendations for particular methods, R
>> packages, or readings?
>>
>> Thanks so much!
>>
>> Brendan
>
>
>
>
> ------------------------------
>
> Message: 2
> Date: Mon, 28 Feb 2022 14:05:08 +0000
> From: Michael Dewey <lists at dewey.myzen.co.uk>
> To: Amy Zadow <Amy.Zadow at unisa.edu.au>, R meta
> <r-sig-meta-analysis at r-project.org>
> Subject: Re: [R-meta] Heterogeneity and moderated mediation
> Message-ID: <e560f46d-9887-d498-8c01-fa63b87fae24 at dewey.myzen.co.uk>
> Content-Type: text/plain; charset="windows-1252"; Format="flowed"
>
> It is hard to comment in detail as we do not have any information about
> the meta-analysis you ran. Are there two separate analyses, one for
> groups and one for individuals, two separate data-sets, one for groups
> and one for individuals, or one analysis using a multi-level
> meta-analysis? Presumably that is all replicated four times for each PSC
> (whatever that is) but that could equally be another level in the
> multi-level mode.
>
> Would the nature of the research environment and study design have
> caused you to believe that heterogeneity was expected or unlikely?
>
> Michael
>
> On 28/02/2022 06:50, Amy Zadow wrote:
>> Hello,
>>
>> I am seeking advice about my current results ? any
>> comments/criticism/advice around the heterogeneity statistics would be
>> very helpful
>>
>> Also I would be keen to conduct a moderated mediation but not sure where
>> to start. Any advice/ recommended resources or code would be much
>> appreciated.
>>
>> Many thanks, Amy
>>
>>
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