I'm running an experiment where participants use Qualtrics to fill out a survey, and then are directed to Inqisit 4 to perform a batch of experiments, and then back to a separate Qualtrics survey to enter some personal details (participants are offered the chance at winning a gift card as an incentive to complete the tasks). Our ethics review has requested that we ensure that the identifying information that we collect as part of the prize draw be kept separate and secure from the other data.
Our original plan was to use the "Redirect to an external website" option when setting up the experiment, but this seems to include the subject ID within the URL. Is there a way to turn this option off, or to mask the Subject ID in some manner? I'm not overly familiar with the set-up at Qualtrics, and I can't see anything that would allow a person to match the responses given in the survey to the URL used to access the page - but this is far from my forte.
Does anyone have any ideas?