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3 results for “from:Lena Schäfer”

[R-meta] Preregistering publication bias analysis
Lena Schäfer · Dec 22, 2020 · r-sig-meta-analysis

Hello everyone, We are looking for advice on preregistering publication bias analysis for a meta-analysis. Our data set consists of 187 effect sizes nested in 53 studies and we will account for the statistical dependency using robumeta. Forty of...

[R-meta] Effect sizes for mixed-effects models
Lena Schäfer · Dec 13, 2019 · r-sig-meta-analysis

Dear James, Thank you so much for the detailed response! I apologize for the delay in getting back to you; my graduate school applications got in the way of this. Your suggestion is exactly what we have been looking for...

[R-meta] Effect sizes for mixed-effects models
Lena Schäfer · Oct 19, 2019 · r-sig-meta-analysis

Hi everyone, I am writing to ask two questions related to the calculation of effect sizes for mixed-effects models for a meta-analysis. To derive effect sizes for mixed-effects models, we generally follow the Hedges 2007 paper (https...

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