amazon - mturk on external website -
i had quick question on making survey on external link hit on amazon mechanical turk. if user completes survey on external webpage , submit survey code on mturk interface, how i, requester, guarantee user won't survey again? in user should survey once. there way allow user click on survey link once? thank you!
each worker restricted completing hit once. of course, if setup survey software not log each worker's workerid, possible might click link multiple times before completing hit.
i recommend logging workerid in survey sytem. you can take @ instructions i've put here how achieve using javascript.
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