Card #1771 · Prolific Marketplace
Missing or failed delivery of study completion codes
Participants are frequently encountering technical issues at the end of studies, where completion codes fail to appear or the redirect back to Prolific does not work. This leads to anxiety over potential rejections and requires manual submission of codes found in URLs or 'Nocode' submissions.
Pain score
0.69/ 1.00 · weighted product of four components
Reach0.72distinct authors (log-normalized)
Recency0.95freshness decay, half-life months
Engagement0.80upvotes + comments, normalized
Monetization0.50willingness-to-pay cues in evidence
§ Evidence — 5 verified quotes
instead of being redirected back to Prolific, the page didn't load correctly.
In the end, I just got a 'thank you for completing the study' page and no completion code.
The completion code didn’t automatically appear on the Prolific screen for some reason.
No completion code and not approved yet
I didn’t get a completion code at the end, did it this morning it’s been over an hour and hasn’t approved yet, kinda nervous!
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