Effects of contributor experience on the quality of health-related wikipedia articles

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dc.identifier.uri http://dx.doi.org/10.15488/3469
dc.identifier.uri http://www.repo.uni-hannover.de/handle/123456789/3499
dc.contributor.author Holtz, Peter
dc.contributor.author Fetahu, Besnik
dc.contributor.author Kimmerle, Joachim
dc.date.accessioned 2018-06-13T13:18:48Z
dc.date.available 2018-06-13T13:18:48Z
dc.date.issued 2018
dc.identifier.citation Holtz, P.; Fetahu, B.; Kimmerle, J.: Effects of contributor experience on the quality of health-related wikipedia articles. In: Journal of Medical Internet Research 20 (2018), Nr. 5, e171. DOI: https://doi.org/10.2196/jmir.9683
dc.description.abstract Background: Consulting the Internet for health-related information is a common and widespread phenomenon, and Wikipedia is arguably one of the most important resources for health-related information. Therefore, it is relevant to identify factors that have an impact on the quality of health-related Wikipedia articles. Objective: In our study we have hypothesized a positive effect of contributor experience on the quality of health-related Wikipedia articles. Methods: We mined the edit history of all (as of February 2017) 18,805 articles that were listed in the categories on the portal health & fitness in the English language version of Wikipedia. We identified tags within the articles' edit histories, which indicated potential issues with regard to the respective article's quality or neutrality. Of all of the sampled articles, 99 (99/18,805, 0.53%) articles had at some point received at least one such tag. In our analysis we only considered those articles with a minimum of 10 edits (10,265 articles in total; 96 tagged articles, 0.94%). Additionally, to test our hypothesis, we constructed contributor profiles, where a profile consisted of all the articles edited by a contributor and the corresponding number of edits contributed. We did not differentiate between rollbacks and edits with novel content. Results: Nonparametric Mann-Whitney U-tests indicated a higher number of previously edited articles for editors of the nontagged articles (mean rank tagged 2348.23, mean rank nontagged 5159.29; U=9.25, P<.001). However, we did not find a significant difference for the contributors' total number of edits (mean rank tagged 4872.85, mean rank nontagged 5135.48; U=0.87, P=.39). Using logistic regression analysis with the respective article's number of edits and number of editors as covariates, only the number of edited articles yielded a significant effect on the article's status as tagged versus nontagged (dummy-coded; Nagelkerke R2 for the full model=.17; B [SE B]=-0.001 [0.00]; Wald c2 [1]=19.70; P<.001), whereas we again found no significant effect for the mere number of edits (Nagelkerke R2 for the full model=.15; B [SE B]=0.000 [0.01]; Wald c2 [1]=0.01; P=.94). Conclusions: Our findings indicate an effect of contributor experience on the quality of health-related Wikipedia articles. However, only the number of previously edited articles was a predictor of the articles' quality but not the mere volume of edits. More research is needed to disentangle the different aspects of contributor experience. We have discussed the implications of our findings with respect to ensuring the quality of health-related information in collaborative knowledge-building platforms. © Peter Holtz, Besnik Fetahu, Joachim Kimmerle. eng
dc.language.iso eng
dc.publisher Richmond, Va. : Healthcare World
dc.relation.ispartofseries Journal of Medical Internet Research 20 (2018), Nr. 5
dc.rights CC BY 4.0 Unported
dc.rights.uri https://creativecommons.org/licenses/by/4.0/
dc.subject Collaborative knowledge construction eng
dc.subject Contributor characteristics eng
dc.subject Health-information online eng
dc.subject Wikipedia eng
dc.subject article eng
dc.subject editor eng
dc.subject English (language) eng
dc.subject human eng
dc.subject human experiment eng
dc.subject medical information eng
dc.subject rank sum test eng
dc.subject.ddc 610 | Medizin, Gesundheit ger
dc.title Effects of contributor experience on the quality of health-related wikipedia articles
dc.type Article
dc.type Text
dc.relation.issn 1438-8871
dc.relation.doi https://doi.org/10.2196/jmir.9683
dc.bibliographicCitation.issue 5
dc.bibliographicCitation.volume 20
dc.bibliographicCitation.firstPage e171
dc.description.version publishedVersion
tib.accessRights frei zug�nglich

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