Lukasz Stasielowicz
Osnabr?ck University
Institute for Psychology
Research methods, psychological assessment, and evaluation
Seminarstra?e 20
49074 Osnabr?ck (Germany)
Am 06.01.2022 um 12:00 schrieb r-sig-meta-analysis-request at r-project.org:
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> 1. (Too) Many effect sizes for one single group
> (=?UTF-8?Q?C=C3=A1tia_Ferreira_De_Oliveira?=)
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> ----------------------------------------------------------------------
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> Message: 1
> Date: Wed, 5 Jan 2022 19:32:29 +0000
> From: =?UTF-8?Q?C=C3=A1tia_Ferreira_De_Oliveira?= <cmfo500 at york.ac.uk>
> To: R meta <r-sig-meta-analysis at r-project.org>, "Viechtbauer,
> Wolfgang (SP)" <wolfgang.viechtbauer at maastrichtuniversity.nl>
> Subject: [R-meta] (Too) Many effect sizes for one single group
> Message-ID:
> <CACw+TffviaNdFERh3Pp361ZJVO2F11WG7S2G8WdWcONiHcusFg at mail.gmail.com>
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> Dear Wolfgang,
>
> I hope you had a lovely start to the year.
> I am sorry for starting the year with questions, but I just wanted to check
> whether there is any drawback from including a lot of effect sizes from a
> single paper when most labs contributed to the meta-analysis with just one
> or two effect sizes? This resulted in a dataset where half of the effect
> sizes come from multiple experiments run by the same group. The nested
> nature of the data and dependency of some effect sizes coming from the same
> participants is acknowledged in the model.
>
> Thank you!
>
> Catia
>