Wikipedia:Wikipedia Signpost/2020-08-02/Recent research
Receiving thanks increases retention, but not the time contributed to Wikipedia
A monthly overview of recent academic research about Wikipedia and other Wikimedia projects, also published as the Wikimedia Research Newsletter.
Receiving thanks increases retention of new editors, but not the time contributed to Wikipedia
The Citizens and Technology (CAT) Lab at Cornell University recently published two preprints studying the effects of Wikipedia's inbuilt "thanks button" on participation. These experiments were conducted in collaboration with community members from the Arabic, German, Persian and Polish language Wikipedias.
In the first study, all editors who had made a "thankable edit" (defined e.g. as receiving a "good-faith" and "non-damaging" rating from the automated ORES classifier) in the last 90 days were eligible to be randomly assigned into a test and a control group. Edits from the test group were then presented to experienced volunteers (334 overall) who decided whether to send a thanks for them. The researchers measured the effect on three preregistered main outcomes:
- No significant changes were found in the daily labor hours contributed (comparing the six weeks before and after receiving the thank). The authors write that "this finding may result from an effect that is inconsequentially small, from the high variance in labor hours between participants, or from measurement error in the method for inferring time contributed" (which was based on grouping edits into "sessions" as proposed by Halfaker and Geiger, cf. our earlier coverage).
- The retention of editors increased by 2% on average (an editor was defined as retained if they made "at least one edit to Wikipedia in a five week period starting at the beginning of the second week" after receiving the thank).
- As the biggest effect, the study found that "receiving an expression of gratitude caused contributors to send 1.6 times more thanks" (according to the preprint; in an accompanying blog post, the researchers give a slightly different figure of a 43% increase).
These results are somewhat in contrast with a study by Goel, Anderson and Zia (conducted in collaboration with the Wikimedia Foundation's research team and presented at last year's WWW conference) which found "that receiving a thank has a strong positive effect on short-term editor activity", but had to base that conclusion on correlations as it was a merely observational study, instead of a randomized controlled experiment.
CAT's second study, titled "Expressing Gratitude and Feeling Emotionally Drained on Wikipedia" randomly assigned experienced editors from the German, Polish and Persian Wikipedias (recruited via banners to participate in the study) to either "review [edits by other contributors] and send personal expressions of gratitude to four Wikipedia contributors", or, in the control group, "to carry out common, routine activities on Wikipedia". Before and after this, they were asked to fill out a survey that asked whether they "feel positive about" their Wikipedia contributions, and whether they found contributing is "emotionally draining." Contrary to the researchers' preregistered hypothesis, the experiment "failed to find an effect from expressing gratitude on differences in socially supportive activity (p=0.74) [measured in article edits, article talk page edits, and thanks sent] or positive feelings about one’s contributions to Wikipedia (p=0.065)".
In general, the researchers found that (as summarized in an accompanying blog post) "People who spend more time mentoring and people who do more to monitor Wikipedia for vandalism report feeling more emotionally drained than others. Yet people who do more monitoring also feel more positive about their contributions".
The CAT team emphasizes that both studies were conducted in collaboration with community members from the involved Wikipedias, not unlike an earlier study that found a positive effect of barnstar-like awards on the German Wikipedia. In contrast, a quite similar project where researchers from Carnegie Mellon University had planned to study "How role-specific rewards influence Wikipedia editors’ contribution" was withdrawn in early 2019 after being met with resistance from editors on the English Wikipedia.
See also this Facebook discussion with two of the CAT researchers
Briefly
- See the page of the monthly Wikimedia Research Showcase for videos and slides of past presentations.
Other recent publications
Other recent publications that could not be covered in time for this issue include the items listed below. Contributions, whether reviewing or summarizing newly published research, are always welcome.
"Openness, inclusion and self-affirmation: Indigenous knowledge in open knowledge projects"
From the abstract:
See also by one of the authors: "Ethics and responsibilities of open access. Lessons learned from the Wikipedia project of the Atikamekw First Nation" (abstract and 15min video)
Librarians "Reverting Hegemonic Ideology" by editing Wikipedia
From the abstract:
"From MDMA to Lady Gaga: Expertise and Contribution Behavior of Editing Communities on Wikipedia"
From the abstract:
"Does Copyright Affect Reuse? Evidence from Google Books and Wikipedia"
From the abstract:
See also university press release: "Wikipedia Readers Get Shortchanged by Copyrighted Material" and our coverage of an early presentation of the results (five years before the publication of this paper): "How Wikipedia articles benefit from the availability of public domain resources"
"Knowledge Graphs on the Web -- an Overview"
From the abstract:
How Wikipedia illustrates coup d’états in Soviet Russia and Egypt
From the abstract:
"Wikipedia's Network Bias on Controversial Topics"
From the abstract and paper:
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