Defining and Measuring Success in Online Citizen Science: A Case Study of Zooniverse Projects

Joe Cox, Eun Young Oh, Brooke Simmons, Chris Lintott, Karen Masters, Anita Greenhill, Gary Graham, Kate Holmes

    Research output: Contribution to journalJournal Articlepeer-review

    113 Citations (Scopus)


    Although current literature highlights a wide variety of potential citizen science project outcomes, no prior studies have systematically assessed performance against a comprehensive set of criteria. The study reported here is the first to propose a novel framework for assessing citizen science projects against multiple dimensions of success. The authors apply this framework to a sample of projects that form part of the online Zooniverse platform and position these projects against a success matrix that measures both contribution to science and public engagement levels relative to other projects in the sample. Their results indicate that better-performing projects tend to be those that are more established, as well as those in the area of astronomy. Implications for citizen science practitioners include the need to consider the impact of core competencies on project performance, as well as the importance of relationships between the central organization and science teams.

    Original languageEnglish
    Article number7106413
    Pages (from-to)28-41
    Number of pages14
    JournalComputing in Science and Engineering
    Issue number4
    Publication statusPublished - 1 Jul. 2015


    • Zooniverse
    • citizen science
    • metrics
    • online
    • project outcomes
    • scientific computing
    • success factors


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