Is it possible to use a contact list as a means of linking specific data with particular responses from participants? In my specific project, I am retrieving an ID through a URL, and I want to compare the ID with the list of IDs in my contact list to send the participant a specific URL. The goal is to use Qualtrics to redirect our participants to conduct a research study, but each participant will have their own unique link for the study.In my mock-up contact list, I have a column for USER_ID and a column for LINK. The logic flow is to compare the the ID from the URL with USER_ID and then show the user the associated LINK.Looking at branch logic, it seems I store these values in embedded data and compare them with an if branch, but I don't see a way to retrieve the specific LINK to display for the user.

So, if I understand correctly, in the first run, you'll be directing participants from Prolific to Qualtrics for determining their eligibility/availability. This will "the list" that gets directed to the experiment.If that's the case, then using the authenticator seems most appropriate. Add their prolific ids as an external data reference and use that to let the eligible one's pass.

1. If you are using a contact list, why not just create individual links? 2. A pre defined contact list sounds like what authenticators were built for. Any reason for not using them?

Linking Participants to Specific Entries Using Embedded Data

Linking Participants to Specific Entries Using Embedded Data | Experience Community

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