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The Verification of Ecological Citizen Science Data: Current Approaches and Future Possibilities

Baker, E.R.; Drury, J.P.; Judge, J.; Roy, D.B.; Smith, G.C.; Stephens, P.A.

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Authors

E.R. Baker

J. Judge

D.B. Roy

G.C. Smith



Abstract

Citizen science schemes enable ecological data collection over very large spatial and temporal scales, producing datasets of high value for both pure and applied research. However, the accuracy of citizen science data is often questioned, owing to issues surrounding data quality and verification, the process by which records are checked after submission for correctness. Verification is a critical process for ensuring data quality and for increasing trust in such datasets, but verification approaches vary considerably between schemes. Here, we systematically review approaches to verification across ecological citizen science schemes that feature in published research, aiming to identify the options available for verification, and to examine factors that influence the approaches used. We reviewed 259 schemes and were able to locate verification information for 142 of those. Expert verification was most widely used, especially among longer-running schemes, followed by community consensus and automated approaches. Expert verification has been the default approach for schemes in the past, but as the volume of data collected through citizen science schemes grows and the potential of automated approaches develops, many schemes might be able to implement approaches that verify data more efficiently. We present an idealised system for data verification, identifying schemes where this system could be applied and the requirements for implementation. We propose a hierarchical approach in which the bulk of records are verified by automation or community consensus, and any flagged records can then undergo additional levels of verification by experts.

Citation

Baker, E., Drury, J., Judge, J., Roy, D., Smith, G., & Stephens, P. (2021). The Verification of Ecological Citizen Science Data: Current Approaches and Future Possibilities. Citizen Science: Theory and Practice, 6(1), 1-14. https://doi.org/10.5334/cstp.351

Journal Article Type Article
Acceptance Date Jan 12, 2021
Online Publication Date Apr 13, 2021
Publication Date 2021
Deposit Date Feb 13, 2021
Publicly Available Date Apr 14, 2021
Journal Citizen Science: Theory and Practice
Electronic ISSN 2057-4991
Publisher Ubiquity Press
Peer Reviewed Peer Reviewed
Volume 6
Issue 1
Pages 1-14
DOI https://doi.org/10.5334/cstp.351
Public URL https://durham-repository.worktribe.com/output/1252601

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