Many Labs

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Definition: A crowdsourcing initiative led by the Open Science Collaboration (2015) whereby several hundred separate research groups from various universities run replication studies of published effects. This initiative is also known as “Many Labs I” and was subsequently followed by a “Many Labs II” project that assessed variation in replication results across samples and settings. Similar projects include ManyBabies, EEGManyLabs, and the Psychological Science Accelerator.

Related terms: Collaboration, Many analysts, Many Labs I, Many Labs II, Open Science Collaboration, Replication

References:

  • Ebersole, C. R., Atherton, O. E., Belanger, A. L., Skulborstad, H. M., Allen, J. M., Banks, J. B., & Nosek, B. A. (2016). Many Labs 3: Evaluating participant pool quality across the academic semester via replication. Journal of Experimental Social Psychology, 67, 68–82. https://doi.org/10.1016/j.jesp.2015.10.012
  • Frank, M. C., Bergelson, E., Bergmann, C., Cristia, A., Floccia, C., Gervain, J., Hamlin, J. K., Hannon, E. E., Kline, M., Levelt, C., Lew-Williams, C., Nazzi, T., Panneton, R., Rabagliati, H., Soderstrom, M., Sullivan, J., Waxman, S., & Yurovsky, D. (2017). A Collaborative Approach to Infant Research: Promoting Reproducibility, Best Practices, and Theory-Building. Infancy, 22, 421–435. https://doi.org/10.1111/infa.12182
  • Klein, R. A., Ratliff, K. A., Vianello, M., Adams, R. B., Bahník, Š., Bernstein, M. J., & et al. (2014). Investigating variation in replicability: A “many labs” replication project. Social Psychology, 45, 142–152. https://doi.org/10.1027/1864-9335/a000178
  • Klein, R. A., Vianello, M., Hasselman, F., Adams, B. G., Adams, R. B., Alper, S., & … Nosek, B. A. (2018). Many Labs 2: Investigating Variation in Replicability Across Samples and Settings. Advances in Methods and Practices in Psychological Science, 1(4), 443–490. https://doi.org/10.1177/2515245918810225
  • Moshontz, H., Campbell, L., Ebersole, C. R., IJzerman, H., Urry, H. L., Forscher, P. S., & Chartier, C. R. (2018). The Psychological Science Accelerator: Advancing psychology through a distributed collaborative network. Advances in Methods and Practices in Psychological Science, 1(4), 501–515. https://doi.org/10.1177/2515245918797607
  • Pavlov, Y. G., Adamian, N., Appelhoff, S., Arvaneh, M., Benwell, C., Beste, C., & Mushtaq, F. (2020). #EEGManyLabs: Investigating the Replicability of Influential EEG Experiments. PsyArXiv Preprint. https://doi.org/10.31234/osf.io/528nr

Originally drafted by: Sam Parsons

Reviewed by: Helena Hartmann, Charlotte R. Pennington, Mirela Zaneva