I’m running a study in which each respondent get a unique link to a long survey. In survey settings, I allowed respondents to finish later and record incomplete surveys after 3 months of inactivity. I’ve got respondents emailing me saying that they were not able to resume where they left off a few days before. The record on my end showed two separate entries under “responses in progress” tab for the respondent in question. Upon further questioning, they told me they did not close the old tab and start a new one or clear their internet history/cache or switch devices/ internet browsers.
Any idea what causes this and how to avoid it from happening in the future? How do I get the respondent to pick up where they initially left off?