Single-Dataset Meta-Analysis For Many-Analysts And Multiverse Studies

Fuente: arXiv
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Autori principali: Bartoš, František, Hoogeveen, Suzanne, Sarafoglou, Alexandra, Pawel, Samuel
Natura: Preprint
Pubblicazione: 2025
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author Bartoš, František
Hoogeveen, Suzanne
Sarafoglou, Alexandra
Pawel, Samuel
author_facet Bartoš, František
Hoogeveen, Suzanne
Sarafoglou, Alexandra
Pawel, Samuel
contents Empirical claims often rely on one population, design, and analysis. Many-analysts, multiverse, and robustness studies expose how results can vary across plausible analytic choices. Synthesizing these results, however, is nontrivial as all results are computed from the same dataset. We introduce single-dataset meta-analysis, a weighted-likelihood approach that incorporates the information in the dataset at most once. It prevents overconfident inferences that would arise if a standard meta-analysis was applied to the data. Single-dataset meta-analysis yields meta-analytic point and interval estimates of the average effect across analytic approaches and of between-analyst heterogeneity, and can be supplied by classical and Bayesian hypothesis tests. Both the common-effect and random-effects versions of the model can be estimated by standard meta-analytic software with small input adjustments. We demonstrate the method via application to the many-analysts study on racial bias in soccer, the many-analysts study of marital status and cardiovascular disease, and the multiverse study on technology use and well-being. The results show how single-dataset meta-analysis complements the qualitative evaluation of many-analysts and multiverse studies.
format Preprint
id arxiv_https___arxiv_org_abs_2511_17064
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Single-Dataset Meta-Analysis For Many-Analysts And Multiverse Studies
Bartoš, František
Hoogeveen, Suzanne
Sarafoglou, Alexandra
Pawel, Samuel
Methodology
62A99
G.3
Empirical claims often rely on one population, design, and analysis. Many-analysts, multiverse, and robustness studies expose how results can vary across plausible analytic choices. Synthesizing these results, however, is nontrivial as all results are computed from the same dataset. We introduce single-dataset meta-analysis, a weighted-likelihood approach that incorporates the information in the dataset at most once. It prevents overconfident inferences that would arise if a standard meta-analysis was applied to the data. Single-dataset meta-analysis yields meta-analytic point and interval estimates of the average effect across analytic approaches and of between-analyst heterogeneity, and can be supplied by classical and Bayesian hypothesis tests. Both the common-effect and random-effects versions of the model can be estimated by standard meta-analytic software with small input adjustments. We demonstrate the method via application to the many-analysts study on racial bias in soccer, the many-analysts study of marital status and cardiovascular disease, and the multiverse study on technology use and well-being. The results show how single-dataset meta-analysis complements the qualitative evaluation of many-analysts and multiverse studies.
title Single-Dataset Meta-Analysis For Many-Analysts And Multiverse Studies
topic Methodology
62A99
G.3
url https://arxiv.org/abs/2511.17064