So, for example, if my Incomplete survey responses setting is set to 1 week, the survey will drop a session cookie that expires one week from when I clicked the survey link. Whenever a survey is taken, a session cookie is dropped, with the expiration date matching with whatever is set for the incomplete survey responses setting in survey options.
Behavior of QST and session cookies: 2+ Page Survey Calculating a Group’s Contribution to Overall Scores (Studio).Displaying Total Volume on Widgets (Studio).Percent Total & Percent Parent (Studio).