FORRT Library of Reproduction and Replication Attempts
Explore FLoRA Look up a study Submit a replication
The aim of the FORRT Library of Reproduction and Replication Attempts (FLoRA) is to track all attempts to repeatedly test published findings across the sciences and humanities. In contrast to the FORRT Replication Database (FReD), FLoRA does not contain statistical data. This allows FLoRA to include references from any field of research, and to be maintained with limited resources.
Replications are studies that intentionally repeat prior research to test whether the original findings hold. To be included in FLoRA, a study must:
- Self-identify as a replication (e.g., “replication of Author (Year)”) before reporting results — replication must be an aim, not just a result
- Identify specific target study/studies that it replicates
- Replicate a study or experiment, not just a single association or finding
Replications can range from close/direct (same methods, same population) to conceptual (testing the same hypothesis with different methods), as long as the above criteria are met. The plugin tags replication outcomes as Successful, Failed, or Mixed, based on how the replication authors characterise their results.
Treat outcome labels as a starting point, not a verdict on the original. They depend on how replication authors describe their results. A failed replication does not by itself show that the original finding was false or the original study flawed: a replication can also fail by chance, because of low power or problems in its own conduct, or because conditions, situations, or contexts differed.
Reproductions are attempts to computationally verify whether reported results can be obtained from the original study’s data and methods. Reproductions are coded along two dimensions:
- Computational success: Were the original results obtained? (Computationally Successful vs Computational Issues)
- Robustness: Do results hold under reasonable alternative specifications? (Robust, Robustness Challenges, or Robustness Not Checked)
Key distinction: If new data are collected or used (e.g., an additional decade of data), it is a replication. If the same data are re-analysed to verify the original results, it is a reproduction.
Structure of FLoRA
Link repetition (replication/reproduction) references to original references
Provide a standardized outcome (e.g., success, failure) based on the repetition report
With this simple structure FLoRA allows for tracking of replication rates across time, disciplines, academic journals, and more. FLoRA is used for a wide range of existing projects, such as the FLoRA Annotator, a tool that lists replication and reproduction attempts for the reference that you provide it with.
In FLoRA, years of work from a large community of volunteers culminate. If you would like to contribute to the project or use the data for your own research, we would strongly appreciate you reaching out to us.
How to cite:
Wallrich, L.*, & Röseler, L.*, Hartmann, H., Ashcroft-Jones, S., Doetsch, C., Kaiser, L., Schüller, S. M., Aldoh, A., Behbood, H., Elsherif, M. M., Klett, N., Krapp, J., Liu, M., Pavlović, Z., Pennington, C. R., Schütz, A., Seida, C., Siziva, K., Skvortsova, A., Tondlekar, R. V., Vaz, K. G., Weinerova, J., Aczel, B., Adelina, N., Agostini, V., Aiyer, S., Al-Hoorie, A. H., Alarie, S., Albayrak-Aydemir, N., Alzahawi, S., Anvari, F., Arriaga, P., Baker, B. J., Barth, C. L., Bauer, D. J., Becker, R., Beitner, J., Belaus, A., Bergmann, L., Bhatt, H., Bhogal, J., Bobičić, O., Bottitta, K., Boyce, V., Breemer, L., Brick, C., Brohmer, H., Brummernhenrich, B., Budd, E., Butler, A., Casula, A., Chandrashekar, S. P., Chen, S., Chung, K. L., Cockcroft, J. P., Coulson, H. D., Crowe, P., Cummins, J., Daniel, A., Deane, O., Deressa, T. K., Dienlin, T., Diveica, V., Draguns, A., Dumbalska, T., Dunleavy, D. J., Dönicke, J., Efendic, E., El Halabi, M., Enright, S., Evans, T. R., Exner, A., Farrar, B. G., Feldman, G., Fillon, A., Floyd, J., Fontana Vieira, F., Frese, J., Förster, N., Galang, C. M., Gattie, M. C., Gemmecke, C., Genschow, O., Giannouli, V., Gjoneska, B., Gnambs, T., Gourdon-Kanhukamwe, A., Graham, C. J., Greshake Tzovaras, B., Groot, L., Guay, S., Hausenloy, J., Haviva, C., Henderson, E. L., Herderich, A., Hilbert, L., Holgado, D., Huang, X., Hussey, I., Höfer, L., Ilchovska, Z. G., Imada, H., Imwene, P., Izydorczak, K., Jaubert, S., Jeftić, A., Kalandadze, T., Kamermans, K., Karhulahti, V., Kasseckert, L., Kastrinogiannis, A., Klingelhöfer-Jens, M., Kocalar, H. E., Koppel, L., Koppold, A., Korbmacher, M., Kołczyńska, M., Kujawa, Z., Kulke, L., Kumar, P., Kuper, N., Kurten, S., LaPlume, A. A., Lach, R. P., Lecuona, O., Lee, J., Leech, G., Leksina, E., Lin, C., Liu, Y., Lohkamp, F., Lou, N. M., Lynott, D., Mackinnon, S., Maier, M., Maiya, S., Makel, M. C., Manrique-Castano, D., Manríquez-Robles, D., Mathes, L., Mawhinney, B. E., McSharry, D., Meidenbauer, K. L., Meier, M., Micheli, L., Miller, T., Montefinese, M., Moreau, D., Moser, N., Mrkva, K., Murphy, J., Muthu, J., Narkar, N., Nemcova, M., Nguyen, N. D., Nádvorník, J., O'Mahoney, R., O'Mahony, A., Oberholzer, Y., Oomen, D., Osano, M., Otstavnov, N., Packheiser, J., Pandey, S., Panton, H., Papenmeier, F., Parsons, S., Paruzel-Czachura, M., Pavlov, Y. G., Petrov, N., Pittelkow, M., Plomp, W., Plonski, P. E., Pravednikov, A., Pronizius, E., Pua, A., Pypno-Blajda, K., Rausch, M., Raza, H., Reason, R., Rebholz, T. R., Resulbegoviq, H., Richert, E., Ross, R. M., Russo, S., Röer, J. P., Röseler, J., Sandkühler, J. F., Sandoval-Lentisco, A., Schmidt, K., Sempere, N., Sobolak, R., Sparhuber, M., Sperl, M. F., Stasielowicz, L., Stevens, J. R., Stogianni, M., Swain, S. D., Szekely, R., Tan, A. W., Thürmer, J. L., Tiulpakova, M., Tomczak, J., Tołopiło, A., Trost, K., Tunca, B., Uldrijan, O., Vanpaemel, W., Vaughn, L. A., Verheyen, S., Vineyard, G. H., Weber, L., Weinberg, A., Wingen, S., Wolska, J., Yeung, S. K., Younssi, M., Zaneva, M., Zimmermann, D., Azevedo, F. (2026). FORRT Library of Reproduction and Replication Attempts (FLoRA) [Data set]. OSF. https://doi.org/10.17605/OSF.IO/9R62X
* These authors contributed equally to this work.
This work is licensed under a CC BY 4.0 license.
