whoa, PEW surveyed turkers… makes sense, just surprisedhttps://twitter.com/pewinternet/status/759197088143974401 …
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You also can't check whether they are colluding on your survey, your screeners, etc.
Right. Other than self-reports, that's hard to track. Relevant: http://www.inthecrowd.org/wp-content/uploads/2015/10/collab_paper21.pdf …
As a worker forum admin, we're strict on this. But other forums, FB groups, etc. aren't. And can't stop PM/DMs.
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