Translations:Browsing survey results/6/en
From LimeSurvey Manual
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Incomplete answers are response records with no Date of Submission: such a record can occur when a participant uses the 'saved so far but do not submit survey' function, or when an operator uses the data entry facility to fill out a survey without 'Finalizing the submit', or even when a participant fails to complete the survey due to a browser crash for instance.