RT Journal Article T1 Variability in the analysis of a single neuroimaging dataset by many teams A1 Botvinik-Nezer, R. A1 Holzmeister, F. A1 Camerer, C. F. A1 Dreber, A. A1 Huber, J. A1 Johannesson, M. A1 Kirchler, M. A1 Iwanir, R. A1 Mumford, J. A. A1 Adcock, R. A. A1 Avesani, P. A1 Baczkowski, B. M. A1 Bajracharya, A. A1 Bakst, L. A1 Ball, S. A1 Barilari, M. A1 Bault, N. A1 Beaton, D. A1 Beitner, J. A1 Benoit, R. G. A1 Berkers, R. M. W. J. A1 Bhanji, J. P. A1 Biswal, B. B. A1 Bobadilla-Suarez, S. A1 Bortolini, T. A1 Bottenhorn, K. L. A1 Bowring, A. A1 Braem, S. A1 Brooks, H. R. A1 Brudner, E. G. A1 Calderon, C. B. A1 Camilleri, J. A. A1 Castrellon, J. J. A1 Cecchetti, L. A1 Cieslik, E. C. A1 Cole, Z. J. A1 Collignon, O. A1 Cox, R. W. A1 Cunningham, W. A. A1 Czoschke, S. A1 Dadi, K. A1 Davis, C. P. A1 Luca, A. D. A1 Delgado, M. R. A1 Demetriou, L. A1 Dennison, J. B. A1 Di, X. A1 Dickie, E. W. A1 Dobryakova, E. A1 Donnat, C. L. A1 Dukart, J. A1 Duncan, N. W. A1 Durnez, J. A1 Eed, A. A1 Eickhoff, S. B. A1 Erhart, A. A1 Fontanesi, L. A1 Fricke, G. M. A1 Fu, S. A1 Galván, A. A1 Gau, R. A1 Genon, S. A1 Glatard, T. A1 Glerean, E. A1 Goeman, J. J. A1 Golowin, S. A. E. A1 González-García, C. A1 Gorgolewski, K. J. A1 Grady, C. L. A1 Green, M. A. A1 Guassi Moreira, J. F. A1 Guest, O. A1 Hakimi, S. A1 Hamilton, J. P. A1 Hancock, R. A1 Handjaras, G. A1 Harry, B.B. A1 Hawco, C. A1 Herholz, P. A1 Herman, G. A1 Heunis, S. A1 Hoffstaedter, F. A1 Hogeveen, J. A1 Holmes, S. A1 Hu, C. P. A1 Huettel, S. A. A1 Hughes, M. E. A1 Iacovella, V. A1 Iordan, A. D. A1 Isager, P. M. A1 Isik, A. I. A1 Jahn, Andrew A1 Johnson, Matthew R. A1 Johnstone, Tom A1 Joseph, Michael J. E. A1 Juliano, Anthony C. A1 Kable, Joseph W. A1 Kassinopoulos, Michalis A1 Koba, Cemal A1 Kong, Xiang-Zhen A1 Koscik, Timothy R. A1 Kucukboyaci, Nuri Erkut A1 Kuhl, Brice A. A1 Kupek, Sebastian A1 Laird, Angela R. A1 Lamm, Claus A1 Langner, Robert A1 Lauharatanahirun, Nina A1 Lee, Hongmi A1 Lee, Sangil A1 Leemans, Alexander A1 Leo, Andrea A1 Lesage, Elise A1 Li, Flora A1 Li, Monica Y. C. A1 Lim, Cheng Phui A1 Lintz, Evan N. A1 Liphardt, Schuyler W. A1 Losecaat Vermeer, Annabel B. A1 Love, Bradley C. A1 Mack, Michael L. A1 Malpica, Norberto A1 Marins, Theo A1 Maumet, Camille A1 McDonald, Kelsey A1 McGuire, Joseph T. A1 Méndez Leal, Adriana S. A1 Meyer, Benjamin A1 Meyer, Kristin N. A1 Mihai, Glad A1 Mitsis, Georgios D. A1 Moll, Jorge A1 Nielson, Dylan M. A1 Nilsonne, Gustav A1 Notter, Michael P. A1 Olivetti, Emanuele A1 Onicas, Adrian I. A1 Papale, Paolo A1 Patil, Kaustubh R. A1 Peelle, Jonathan E. A1 Pérez, Alexandre A1 Pischedda, Doris A1 Poline, Jean-Baptiste A1 Prystauka, Yanina A1 Ray, Shruti A1 Reuter-Lorenz, Patricia A. A1 Reynolds, Richard C. A1 Ricciardi, Emiliano A1 Rieck, Jenny R. A1 Rodriguez-Thompson, Anais M. A1 Romyn, Anthony A1 Salo, Taylor A1 Samanez-Larkin, Gregory R. A1 Sanz-Morales, Emilio A1 Schlichting, Margaret L. A1 Schultz, Douglas H. A1 Shen, Qiang A1 Sheridan, Margaret A. A1 Silvers, Jennifer A. A1 Skagerlund, Kenny A1 Smith, Alec A1 Smith, David V. A1 Sokol-Hessner, Peter A1 Steinkamp, Simon R. A1 Tashjian, Sarah M. A1 Thirion, Bertrand A1 Thorp, John N. A1 Tinghög, Gustav A1 Tisdall, Loreen A1 Tompson, Steven H. A1 Toro-Serey, Claudio A1 Torre Tresols, Juan Jesus A1 Tozzi, Leonardo A1 Truong, Vuong A1 Turella, Luca A1 van ‘t Veer, Anna E. A1 Verguts, Tom A1 Vettel, Jean M. A1 Vijayarajah, Sagana A1 Vo, Khoi A1 Wall, Matthew B. A1 Weeda, Wouter D. A1 Weis, Susanne A1 White, David J. A1 Wisniewski, David A1 Xifra-Porxas, Alba A1 Yearling, Emily A. A1 Yoon, Sangsuk A1 Yuan, Rui A1 Yuen, Kenneth S. L. A1 Lei Zhang, A1 Zhang, Xu A1 Zosky, Joshua E. A1 Thomas E. Nichols, A1 Poldrack, Rusell A. A1 Schonberg, Tom A1 Melero Carrasco, Helena AB Data analysis workflows in many scientific domains have become increasingly complex and flexible. Here we assess the effect of this flexibility on the results of functional magnetic resonance imaging by asking 70 independent teams to analyse the same dataset, testing the same 9 ex-ante hypotheses1. The flexibility of analytical approaches is exemplified by the fact that no two teams chose identical workflows to analyse the data. This flexibility resulted in sizeable variation in the results of hypothesis tests, even for teams whose statistical maps were highly correlated at intermediate stages of the analysis pipeline. Variation in reported results was related to several aspects of analysis methodology. Notably, a meta-analytical approach that aggregated information across teams yielded a significant consensus in activated regions. Furthermore, prediction markets of researchers in the field revealed an overestimation of the likelihood of significant findings, even by researchers with direct knowledge of the dataset2–5. Our findings show that analytical flexibility can have substantial effects on scientific conclusions, and identify factors that may be related to variability in the analysis of functional magnetic resonance imaging. The results emphasize the importance of validating and sharing complex analysis workflows, and demonstrate the need for performing and reporting multiple analyses of the same data. Potential approaches that could be used to mitigate issues related to analytical variability are discussed. SN 0028-0836 SN 1476-4687 YR 2020 FD 2020-05-20 LK https://hdl.handle.net/20.500.14352/100828 UL https://hdl.handle.net/20.500.14352/100828 LA eng DS Docta Complutense RD 20 ago 2024