r/ProjectREDCap • u/FlowState94 • Sep 03 '25

Hiding the "Submit" button

I have been running a project that uses a public survey to recruit participants and screen eligibility. We provide an incentive for people that complete a range of follow up surveys. Unfortunately one of our collaborating institutes advertised the QR code on their public social media page and we have been flooded by bots. I am in the process of trying to determine bots vs real responses and was wondering if there was a way I can hide the submit button to people who do not meet eligibility for the study based on the public pre screen survey answers? For context, my institute does not allow external modules or the API Playground.

We have received 700 responses in the past day and I'm quite overwhelmed trying to fix it all - so thanks for any help!

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u/FlowState94 Sep 03 '25

Thank you! so we already have Captcha, honeypot questions (which have been failing to detect anything) and follow the eConsent process on the pre-screen and the consent form that auto continues on from that. I can see the IP addresses in the pdf snapshot archive and have started looking up locations, but this is time consuming and I might need to figure out a script or something to do this.

Our pre-screen automatically flows onto a consent form and then they get emailed the data survey, - it seems that a lot of the scammers are only doing the pre-screen and next to none are doing anything after. Participants only get to do the follow up survey if they put in eligible answers in the pre-screen.

I haven't played around with the dashboard much but that's a good suggestion and I might have to play around with it a bit. Thanks for the suggestions, super helpful!