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Planned Meta-Analysis  /

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Category: Communication

Description: We describe and demonstrate an empirical strategy useful for discovering and replicating empirical effects in psychological science. The method involves the design of a meta-study, in which many independent experimental variables—that may be moderators of an empirical effect—are indiscriminately randomized. Radical randomization yields rich data sets that can be used to test the robustness of an empirical claim to some of the vagaries and idiosyncrasies of experimental protocols and enhances the generalizability of these claims. The strategy is made feasible by advances in hierarchical Bayesian modeling which allow for the pooling of information across unlike experiments and designs, and is proposed here as a gold standard for replication research and exploratory research. The practical feasibility of the strategy is demonstrated with a replication of a study on subliminal priming. All materials and data are freely available online via

License: CC-By Attribution 4.0 International

Has supplemental materials for Meta-studies for robust tests of theory on OSF Preprints


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