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Description: For scientific theories grounded in empirical data, replicability is a core principle, for at least two reasons. First, unless we accept to have scientific theories rest on the authority of a small number of researchers, empirical studies should be replicable, in the sense that its methods and procedure should be detailed enough for someone else to conduct the same study. Second, for empirical results to provide a solid foundation for scientific theorizing, they should also be replicable, in the sense that most attempts at replicating the original study that produced them would yield similar results. The XPhi Replicability Project is primarily concerned with replicability in the second sense, that is: the replicability of results. In the past year, several projects have shed doubt on the replicability of key findings in psychology, and most notably social psychology. Because the methods of experimental philosophy have often been close to the ones used in social psychology, it is only natural to wonder to which extent the results experimental philosophers ground their theory are replicable. The aim of the XPhi Replicability Project is precisely to reach a reliable estimate of the replicability of empirical results in experimental philosophy. To this end, several research teams across the world will replicate around 40 studies in experimental philosophy, some among the most cited, others drawn at random. The results of the project will be published in a special issue of the Review of Philosophy and Psychology dedicated to the topic of replicability in cognitive science. The official website of the project can be found here : https://sites.google.com/site/thexphireplicabilityproject/home The project can also be followed on social medias: https://twitter.com/XPhiReplication https://www.facebook.com/XPhiReplicabilityProject/

Has supplemental materials for Estimating the Reproducibility of Experimental Philosophy on PsyArXiv

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Data & Results


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Procedure


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Pre-replication forms


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Post-replication forms & Final reports


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Effect sizes and Confidence Intervals


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Replication of Knobe 2003

Direct replication of Knobe, J. (2003). “Intentional Action and Side Effects in Ordinary Language.” Analysis, 63, 190-193.

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Replication of Knobe 2003 | Registered: 2017-09-25 18:32 UTC

Direct replication of Knobe, J. (2003). “Intentional Action and Side Effects in Ordinary Language.” Analysis, 63, 190-193.

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Replication of Machery, Mallon, Nichols and Stich (2004)

The XPhi Replicability Project

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Nadelhoffer (2004) Replication

You can find here files related to the replication of Nadelhoffer (2004). This replication was conducted under the Experimental Philosophy Replicabili...

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Replication of Nahmias et al (2005), "Surveying Freedom", Philosophical Psychology

Part of the Experimental Philosophy Replication Project. Replication of: "Nahmias, E., Morris, S., Nadelhoffer, T., and Turner, J. (2005). Surveying F...

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Knobe and Burra Replication

Files related to the replication of Knobe and Burra (2006) for the Xphi Replicability Project. More information here: https://sites.google.com/site/th...

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Replication Nichols and Knobe

X-Phi Replicability Project

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Replication of Nahmias, Coates, & Kavarn (2007) Free Will, Moral Responsibility, and Mechanism: Experiments on Folk Intuitions

This project is part of the Xphi Replicability project led by Florian Cova

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XPhi Replicability Project - Replication of Nadelhoffer & Feltz (2008, Neuroethics) | Registered: 2017-04-30 20:14 UTC


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Gonnerman Replication Study


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Replication of Hitchcock & Knobe (2009) Cause and Norm

This project is a mostly direct replication of Hitchcock, C., & Knobe, J. (2009). Cause and norm. The Journal of Philosophy, 106(11), 587-612.

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Replication of Hitchcock & Knobe (2009) Cause and Norm | Registered: 2017-09-27 14:39 UTC

This project is a mostly direct replication of Hitchcock, C., & Knobe, J. (2009). Cause and norm. The Journal of Philosophy, 106(11), 587-612.

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Replication of Roxborough and Cumby (2009), "Folk Psychological Concepts: Causation", Philosophical Psychology

Part of the Experimental Philosophy Replication Project. Replication of: "Roxborough, C. and Cumby, J. (2009). Folk Psychological Concepts: Causation....

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Replication of Roxborough and Cumby (2009), "Folk Psychological Concepts: Causation", Philosophical Psychology | Registered: 2017-05-19 19:07 UTC

Part of the Experimental Philosophy Replication Project

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Replication Sytsma & Machery 2010


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Replication: Paxton, Ungar, Greene (2012)


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Schaffer and Knobe Replication


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Beebe and Shea (2013) Replication

You can find here the files related to the replication of Beebe and Shea (2013) for the Xphi Replicability Project. More information here: https://sit...

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Replication of Nagel et al. (2013) Cognition


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Replication of Björnsson et al. (2015)

Attempted replication of experiment 1, with 450 participants.

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