I am recruiting participants from Prolific Academic (similar to MTurk) and I need to be able to assign each participant with a 2nd specific participant ID code.
The first participant ID number will be automatically provided through the Prolific website, which will be necessary so I can pay the participants. The second, non-prolific ID number is required so the participants can complete a task on a different platform in the middle of the study. This non-qualtrics platform will only allow participants to enter ID numbers that I have already added previously as a "possible ID number".
Therefore, I need to retain the original prolific ID number and assign nonrandom ID #s. Thanks for your help.
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I'm not 100% sure I understand the problem...
Step 1. Take the automatically assigned ID number from the Prolific Website and add it to a person's Contact List info - right? Are you putting this in the External Data Reference (EDR)?
Step 2, later ("in the middle of the study"), they go to a different platform to do something, and you need a DIFFERENT unique ID number. I would use the Response ID from the first instance since you are assured that will be a unique identifier and it would make it EASY to find their answer to the first form.
When you say "in the middle of the study" do you mean in the middle of filling out your form? IF SO, I would break your form into TWO forms. Form 1 does step 1 above. Then I push them into form two, passing in the ResponseID as a field in the Contact List. I would have them "click here" to do Step 2, using the new Identifier (ResponseID from form one), in a "new window" - when they are done, they would return and finish Form 2.
You can have ALL of their answers (from both forms) in this second form, and they should never know they actually filled out two forms...
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